View All Electrical
The most viewed content from the past week covered switchgear, construction, ESG, EV charging, and more.
The most viewed content from the past week covered electrical power systems, power feeders, EV charging, BAS audits and more.
The most viewed content from the past week covered switchgears, feeder methods, HVAC, air distribution and intelligent buildings.
This provided a general overview of low-voltage switchgear and switchboards, including definitions, standards, advantages and disadvantages
The most viewed content from the past week covered docking stations, synergy design tools, 2022 MEP Giants, HVAC and NFPA 72.
The most viewed content from the past week covered the 2022 MEP Giants, Vanderbilt, transformers, FGI guidelines and NFPA 72.
Read the best content in August 2022 including: the 2022 MEP Giants, regulating HVAC with VRF systems, electrical room footprint and more.
The most viewed content from this past week covered the 2022 MEP Giants, energy efficiency, transformers, industrial facilities and fuses versus circuit breakers.
The most viewed content from this past week covered electrical room design, energy efficiency, airport electrical systems, center control system design and fuses versus circuit breakers.
The most viewed content from the past week covered HVAC and VRF, electrical distribution systems, center control system design, electrical room design and airport electrical systems.
The most viewed content from the past week covered designing electrical distribution systems, data center HVAC design, HVAC and VRF systems, electrical room design and microgrids.
The most-viewed content from the past week covered electrical distribution systems, electrical system design, NFPA updates, electrical room design and microgrids.
The most-viewed content from the past week covered electrical distribution systems, NFPA updates, electrical system design, electrical room design and microgrids.
In this Q&A, the Schneider Electric expert discusses how electrical room components can be reduced to allow for flexibility and value
Read the best content in June 2022 including: 40 Under 40 winners, electrical distribution systems, NFPA 13-2022, emergency generators and more.
The most-viewed content from the past week covered electrical distribution systems, rooftop units, fire pump speed, HVAC trends and NFPA 72-2022.
How does an electrical engineer decide between fuses and circuit breakers? The answer: It depends
This webcast on June 16, 2022 will discuss various methods of footprint reduction for both LV and MV equipment including strategies beyond using smaller equipment.
Attend this webcast on June 30, 2022 to understand basic features when selecting, specifying and applying electrical distribution systems.
Read the best articles from the past week. Electrical power quality, K-12 school changes, hospital electrical trends, health care air handling systems and prefabrication's future.
Single-pair Ethernet (SPE) is exactly what it sounds like, an Ethernet cable that has one twisted pair of copper conductors rather than the usual four.
COVID, employee well-being and indoor air quality issues have all changed the way office building electrical and power systems are considered
What exactly should we first do with our buildings to combat the climate crisis?
Read the best articles from the past week. Electric vehicle charging stations, health care generators, Product of the Year, lighting code compliance and hospital design.
Glumac's Scott Clemons breaks down the environmental and financial benefits of owning on-site electric vehicle charging stations and why they offer unique opportunities for those who purchase them.
Read the best articles from the past week. Circuit coordination, environmental conservation, wildfire smoke mitigation, manufacturing building standards and IAQ facilities.
In this session on Oct. 19, 2021, you will learn about the codes and standards regarding electrical system design, understand the basics of a single-line diagram, explore products and systems within the low- and medium-voltage classification, and review buildings in which both low- and medium-voltage electrical systems have been included, and their interaction.
Read the best articles from the past week. Circuit coordination, IAQ facilities, lighting systems, wildfire smoke mitigation and secure power grids.
As electrical power systems become more complex, system coordination and protection of a facility becomes increasingly important for safe and reliable operation
Learn how to improve electrical design workflow with two software tools
Read the best articles from the past week. Energy storage and microgrids, government building design, HVAC and COVID-19 and Product of the Year finalists.
Engineers involved in designing and specifying electrical systems for small and medium facilities (less than 1 megawatt) will learn about design considerations and customer applications associated with microgrid controls
New sections were added to NFPA 99-2021 health care facilities electrical systems acceptance testing and electrical preventive maintenance
Questions left unanswered during the "Electrical distribution systems" webcast are answered here
Attend this June 15 webcast for continuing education on electrical distribution systems
Read the best articles in May 2021 including: NFPA 101, electrical system software, NFPA 72-2022, effective COVID-19 mitigation, NFPA 72-2022 and more.
Warehouse, manufacturing and logistics facilities need engineering experts to specify various electrical and power systems
Read the best articles from the past week. 40 Under 40 winners, modeling electrical systems, optimizing water usage, power for fire/life safety systems and HVAC changes.
Read the best articles from the past week. Wireless lighting controls, designing data centers, electrical system software, HVAC changes and CFD in three dimensions.
Read the best articles from the past week. Wireless lighting controls, designing data centers, electrical system software, HVAC changes and CFD in three dimensions.
Read the best articles from the past week. Electrical system software, CFD in three dimensions, remote working, NFPA 72-2022, and HVAC and BAS changes
As electrical power and lighting systems become more complex, modeling for safe and reliable electrical operations becomes increasingly important
Read the best articles from the past week. NEC electrical grounding, HVAC and BAS changes, NFPA 72-2022, COVID-19 and HVAC equipment and lab opportunities.
Read the best articles from the past week. Choosing between an ECM and VFD, NFPA 101 and COVID-19, NEC changes, integrating a BAS and data center metrics.
Read the best articles from the past week. NFPA 70-2020 changes, BAS integration, VRF system design, electrical grounding and bonding and Product of the Year winners.
Several questions about low- and medium-voltage electrical systems were left unanswered; read answers to these questions here
During the webcast, several questions were left unanswered. Additional info was provided by the presenters
Understanding correct grounding and bonding design and construction is crucial for proper electrical system operation and personnel safety
Read the best articles in November 2020 including: Commercial building wiring methods, hospital ventilation, 2020 Commissioning Giants and more.
Read the best articles from the past week. Commercial building wiring methods, the salary survey, hospital ventilation design, commissioning giants and modular electric rooms.
Read the best articles from the past week. Commercial building wiring methods, navigating hospital ventilation design during COVID-19, the basics of hot water heating boilers, and more.
Modular electric rooms (MERs) are built out with electrical infrastructure that can be rapidly deployed at a data center facility and are becoming more common.
College and university building design is being driven by student needs, technology and new air quality demands
Electrical engineers and designers should have a practical understanding for the application of raceways, wiring, cabling and busways
Electrical engineers may consider using a raceway system for the electrical feed
Depending on the application, electrical engineers may consider using a busway or bus duct
Read the October 2020 digital edition to learn about building wiring, the 2020 Commissioning Giants, indoor air quality standards and virtual design for buildings.
A discussion about vulnerabilities to electrical systems includes risks to facilities and recommendations for improved safety
Electrical system ground fault protection is vital to ensure the safety of personnel and equipment and to reliably maintain systems based on the loads they serve
Learn how to determine the combined overcurrent protection device for a motor
Motor circuit protection involves understanding the National Electrical Code and equipment nameplate information
Read the September 2020 digital edition to learn about electrical protection advice, boilers and hot water heating tips and smart building consulting.
Several additional questions have been answered from the Aug. 18, 2020, webcast “Learn how to leverage intelligent circuit protection”
Read the best articles from the past week. Switchgear and transformers, school building safety, Product of the Year finalists, ASHRAE 90.4 and UV light disinfection.
Cutting-edge research, by its very definition, changes on a dime as flexibility is the current buzzword in vertical building design and electrical systems need to be future-proofed.
Pharmaceutical labs offer many challenges for electrical engineers, but good communication and thorough planning can bypass most of these challenges.
The AEC industry has continued to upgrade, automate, and secure their systems and the Internet of Things (IoT) and smart devices are at the forefront.
As electrical power systems grow more complex, electrical distribution system modeling and analyses for safe and reliable operations becomes vital
Office buildings are complex structures containing automated features, energy-saving designs, high-tech equipment and other components as advanced as you’d find in any other state-of-the-art project. Electrical, power and lighting systems are at the forefront
Read the best articles from the past week. NEC 2017 changes, NFPA 20 fire pumps, office building design, successful acoustic projects and lighting occupancy sensors.
Read the best articles from the past week. NEC 2017 changes, circuit interrupters, lab and research facility design, building automation advances, and egress planning with NFPA 101.
There are many things we need to consider when designing and building this infrastructure.
Electrical engineers should be familiar with how to specify various circuit interruption and emergency electrical disconnects in commercial facilities
The ATC-900 transfer switch control is ideal for facility operators and engineers alike.
Engineers designing electrical infrastructure to support smoke control systems must be aware of the stringent requirements listed throughout multiple code sections
Read the best articles from the past week. Specifying electrical systems, demand-controlled ventilation in HVAC, pipe systems and materials, NFPA 110-2019 and introduction to boilers.
Health care facility designers are expected to keep pace with increasingly complex, advanced engineered systems and features
Learn about the essential properties and applications of different electrical wiring pathway systems
Electrical and information cabling pathways are a vital component of any new or existing building
How to determine short-circuit current rating (SCCR) and avoid misapplications. When the industrial control panel or industrial machinery does not have an adequate SCCR for the available short-circuit (fault) current, an electrical hazard exists.
Understand how IEC compliance can mitigate short-circuit disasters and future-proof electrical infrastructure
How can cities, infrastructure owners and transport authorities make joined-up decisions around EV charging infrastructure to reap the benefits of low emission vehicles?
During the Aug. 6, 2019, webcast, several questions were asked; here are the questions left unanswered during the live event
How should interested investors approach the EV charging grid opportunity?
Read the best articles from the past week. Electrical systems design to commissioning, resiliency and climate change, sprinkler installations and obstructions, best practices for fire alarm notification design and the 2019 lighting and lighting controls study.
Read the best articles from the past week. Engineers and building professionals clicked on: electrical system design and commissioning, sprinkler installations and obstructions, 2019 Product of the Year finalists, understanding GFCI nuisances and arc flash hazards.
Understanding GFCI nuisances, designing an efficient mechanical system, electrical system design and commissioning, microgrid questions answered, and using lean methods to find process improvements were Consulting-Specifying Engineer's five most clicked articles from last week, May 3 to May 9. Were you out last week? You can catch up here.
Considerations for electrical testing and commissioning, what's new in NFPA 72, 2019 Product of the Year finalists, designing high-tech k-12 schools, and electrical system development were Consulting-Specifying Engineer's five most clicked articles from last week, April 19 to April 25. Were you out last week? You can catch up here.
Since the expansion of the 2017 National Electrical Code (NEC) ground fault circuit interrupter (GFCI) requirements to include single-phase receptacles up to 50A and three-phase receptacles up to 100A, we’ve seen a trend of increased GFCI nuisance tripping.
Chiller selection, LED lighting and control system design, designing data center air handling and conditioning system, AHUs, and electrical systems were Consulting-Specifying Engineer's five most clicked articles from last week, March 29 to April 4. Were you out last week? You can catch up here.
Learn how to define the procedures of electrical schematic design, design development, construction documents, bidding, and construction administration including electrical commissioning.
Updates to NFPA 72-2019, electrical testing and commissioning considerations, electrical system commissioning, USP 797 and USP 800 compliance, and top strategies to deal with turbulent times in the engineering industry were Consulting-Specifying Engineer's five most clicked articles from last week, March 22-28. Were you out last week? You can catch up here.
With each new generation of network comes new and exciting possibilities, both in capacity and data speeds as well as the network’s integration into the latest communication technologies
Co-location data centers lease space for IT equipment, power, cooling, and bandwidth. In addition to being cost-efficient, one of the most important obligations of the co-location owner is to provide continuous high-quality electrical power.
Ethernet cable not only can be used to transmit data and communication, but also power for low-power-usage devices. This article discusses design considerations and relevant codes and standards.
The electrical engineer is responsible for designing power distribution systems for buildings. Understanding the full circuit-protection requirements will enable the engineer to design the safest and most reliable electrical distribution systems for buildings.
Modern HVAC systems present both new challenges and new opportunities when integrating with electrical systems.
International Women in Engineering Day, celebrated on June 23, 2018, celebrates the achievements of females in various engineering industries. Here’s a Q&A with Meetra McDonie.
International Women in Engineering Day, celebrated on June 23, 2018, celebrates the achievements of females in various engineering industries. Here’s a Q&A with Jyo Chandrapati.
International Women in Engineering Day, celebrated on June 23, 2018, celebrates the achievements of females in various engineering industries. Here’s a Q&A with Mallika Bandyopadhyay.
International Women in Engineering Day, celebrated on June 23, 2018, celebrates the achievements of females in various engineering industries. Here’s a Q&A with Maria Schneider.
Electrical engineers should coordinate with mechanical engineers, architects, structural engineers, and others involved in the design of electrical rooms.
The Oct. 5, 2017, “Benefits of powerful embedded metering at the source of consumption” webcast presenters addressed questions not covered during the live event.
For this pumping station application, there are several circuit-protection elements that need to be examined.
Understanding how plug load control options and ASHRAE 90.1 enhance building performance.
The June 22, 2017, “Electrical: Data and communications cabling and pathways” webcast presenters addressed questions not covered during the live event.
Electrical engineers must know when and where to specify dry-type transformers. Energy efficiency guides play a vital role in this process.
The paradigm shift from non-renewable energy to renewable energy will prove to be highly advantageous for power generation and consumption, with major companies increasingly investing in wind and solar power. Mergers & acquisitions is a key strategy across this sector, for instance, Leap Green Energy, backed by JP Morgan, recently took over the wind power assets of Inox Renewables.
The T+B Fittings Sand Cast Aluminum Form 7 Conduit Body is made of CorroStall—a corrosion-resistant aluminum alloy.
The 221 series Lever-Nuts Splicing Connector simplifies electrical installation of solid, stranded, and fine-stranded wire in the most space-restricted applications.
The LKT...Type DD603-phase dry-type capacitor is safer and stronger for solving power factor and harmonic filtering applications where high harmonics can destroy traditional capacitors.
The Outdoor Charging Station provides permanent power that allows individuals to charge mobile devices outdoors.
The Outdoor Ground Box provides 20-amp, 30-amp, and low-voltage electrical connections that can be installed on college campuses, in commercial outdoor office spaces, and at outdoor retail shopping centers, amusement parks, sports venues, and other exterior gathering spaces.
Premset incorporates a Shield Solid Insulation System (2SIS) to enhance robustness, protection, and flexibility of medium-voltage switchgear.
The Bussmann series Power Distribution Fuse Block (PDFB) combines a fuse block and power distribution block into one component.
The Crouse-Hinds series SynergEX Panelboard uses individually encapsulated circuit breakers to provide maximum safety in extreme environments.
The OEM Line Isolation (OLI) switch provides the ability to access the control panel without exposure to line-side voltage.
The Series NRX low-voltage circuit breaker with Power Xpert Release trip unit can be seamlessly installed within existing panel and switchboard designs to provide enhanced circuit protection, connectivity, and worker safety—along with tools for quicker installation and commissioning to help address energy-management challenges.
The PowerPact B-frame circuit breaker offers robust power protection in a compact size and easy installation.
Design Master Electrical RT 1.2 is an electrical calculation add-in for Autodesk Revit software.
The Bussmann series Arcing Current Calculator is designed to enable users to quickly calculate the minimum and maximum arcing currents of electrical systems, based on IEEE 1584.
It is useful for both electrical and nonelectrical engineers to understand basic features when selecting, specifying, and applying electrical distribution systems.
Freddy Padilla, PE, ATD, has joined the Consulting-Specifying Engineer editorial advisory board.
The PowerPact B-frame circuit breaker is designed to offer robust power protection in a compact size and 'efficiency that clicks' to the work day.
The new layout of the hospital allows staff to be accessible to patients in need while also providing private areas for staff to collaborate.
Schneider Electric's new low-voltage (LV) direct replacement breaker solutions allow for modernization of existing electrical equipment in any switchgear application.
Distance protection is now available in BE1-11f and BE1-11t versions for feeder and transformer protection applications.
Cable Tray flexible coupler kit eliminates need for bonding jumper.
PD30ET Series are IP69K stainless steel photoelectric sensors that offer AISI316L stainless steel housings.
GracePort+ is a robust and fully customizable human machine interface cover kit and large protected housing for electrical components.
Engineers should know how nominal system voltages were established, what constitutes a medium-voltage electrical system, and what range of systems are considered appropriate for medium voltage.
Whether producing, consuming, or measuring and verifying (M&V), electrical systems play an important role in data center energy efficiency. When it comes to data center electrical efficiency, all sources of energy use in the facility must be considered.
Bypass/isolation switches are available in load-break or no-load-break bypass.
The Encelium Wireless Area Lighting Controller (WALC) allows a group of lighting devices to communicate via a wireless mesh network based on ZigBee standards.
When designing generator systems, such as engine-driven generator sets, design engineers must ensure that the generator selection, sizing, and the design of electrical systems are appropriate for the application.
Emerson Network Power has redesigned its ASCO 4000 Series Generator Paralleling Switchgear with custom capabilities.
Low-voltage switchgear technology designed to extend type 2B arc-resistant ratings with the instrument and breaker secondary door open provides centralized control and protection for low-voltage power distribution equipment.
It is not always necessary to have every branch circuit breaker rated for the full available fault current in an electrical panel or switchboard.
RF1 Series Compact Solid State Relay provides compact solid-state switching.
The unit integrates decentralized nursing, relying on wireless handsets for exchange of data among physicians, nurses, and researchers, with communication available 24/7.
Read about the 14 finalists in the Electrical Distribution category for the Consulting-Specifying Engineer 2015 Product of the Year program.
Consulting-Specifying Engineer 2015 Product of the Year finalists: Variable frequency drives, variable speed drives
Read about the four finalists in the Variable Frequency Drives and Variable Speed Drives category for the Consulting-Specifying Engineer 2015 Product of the Year program.
The Liebert eXM UPS system is designed for small and medium power requirements seeking greater cost control, flexibility, optimization, and speed of deployment.
Designed with UPS eBoost power efficiency technology, this project was set up with a central plant to provide utility and emergency power to the entire campus and be expanded for additional capacity over time.
Webcast Q&A session with presenters Ken Lovorn, PE, Lovorn Engineering Associates, Pittsburgh; and Danna Jensen, PE, LEED AP BD+C, ccrd partners, Dallas.
Roxtec's ComSeal LW and ComSeal AISI 316 are UL/NEMA and IP rated and designed for industries that deal with electrical wiring and components with enclosures.
Read about the 25 finalists in the Electrical Distribution and Systems category for the Consulting-Specifying Engineer 2014 Product of the Year program.
In this project profile, engineering firm Henkels & McCoy added a back-up generator to power its facility during loss-of-utility events.
Emerson Network Power’s ASCO Series 300 features a microprocessor controller that integrates an intuitive and graphical LCD and six LED indicators.
Four tips to help identify and avoid counterfeit electrical products.
Consulting engineers play role, along with governments, manufacturers, customers, and industry organizations.
Counterfeit electrical products can cause serious problems, from property damage to life safety issues.
GE's Multilin A60 Arc Flash System uses light and pressure wave detection technology to detect and initiate a trip signal in the event of an arc flash condition.
Senior Principal Electrical Engineer, Heapy Engineering, Dayton, Ohio
Associate, ccrd, Houston
Associate, ccrd, Dallas
Vice President, Smith Seckman Reid Inc., Dallas
Vice President, Cannon Design, Buffalo, N.Y.
WSP Flack + Kurtz has named Larry Beam senior vice president. Beam has 35 years of experience in architectural engineering design and project management.
Engineers must consider arc flash prevention in the electrical systems. How important is timing?
Carlo Gavazzi’s RGC1F Series of solid-state contactors have integrated fusing and system monitoring.
The Fluke 430 Series II three-phase power quality and energy analyzers are handheld tools that measure electrical power consumption, quantify wasted energy, and improve the performance and lifespan of electromechanical equipment.
Steven Sveda has been named director of electrical engineering at Heery International's Atlanta office.
From our previous discussions about the Cooper HDC liquid transformer with internal, under-liquid VFI’s, expanding the use of the VFI takes this concept a step further, and makes a great way to mitigate arc flash hazards on the secondary.
Placing snubber components inside transformer enclosures creates a dilemma for dry-type transformer manufacturers.
Installing RC snubbers connected directly to the transformer primary windings is a common recommendation, but can snubbers really produce the desired result?
Instead of specifying individual systems for fire alarm systems, engine test cell fire suppression, hazardous gas detection, medical emergencies, digital voice command, and emergency weather monitoring, the decision was made to tie everything together into one central network.
The Cooper Bussmann CH Series of modular finger-safe DIN-Rail mountable fuse holders have a high SCCR rating up to 200 kA, available for electrical systems requiring class CC or midget fuse protection.
The Clēēr Loadbreak Connector system designed by Cooper Power Systems is a 600 A/15 kV single-phase rated loadbreak connector that offers a visible break and a visible ground without de-energizing, un-bolting 600 A terminations, or moving heavy cables.
Cooper Bussmann’s surge protective devices provide power quality that is free from damaging surges and overvoltage conditions, with specific modules for photovoltaic, wind power, UL, low-voltage, and IEC applications.
Cooper Wiring Devices’ combination USB charger with tamper-resistant shutters supports any electronic product that is capable of being charged with a 5 V power adapter.
Eaton expanded its heavy-duty double-throw safety switches to support 1200 A.
EntelliGuard R Retrofill from General Electric updates legacy circuit breakers with minimal modification, and is compatible with shutters, secondary and neutral disconnects, and position switches in existing breaker cubicles.
Eaton’s Pow-R-Line lighting panelboards integrate the Eaton IQ35M meter to the panelboard, with a height similar to traditional lighting panels.
The Eaton switched combiner provides a single point to combine incoming photovoltaic strings and disconnect dc power close to PV modules, uniting Eaton’s 600 Vdc solar disconnect and source-combiner box in one enclosure.
The WattStation wall-mount electric vehicle charging station, manufactured by General Electric, delivers a full-cycle charge to a 24 kWh battery in 4 to 8 h.
Electric vehicle chargers manufactured by Legrand for residential and light commercial applications are weatherproof rated, have built-in ground fault protection, and are compatible with all plug-in electric vehicles.
Schneider Electric’s NF measurement and verification lighting panelboard is factory installed to monitor energy usage at the most granular branch circuit level and provide end-to-end power monitoring and control.
Legrand/Wiremold developed this Wiremold Evolution Series floor box that offers high capacity and multifunctional capability for power, communications, and audio/video.
The Wiremold OFR Series overfloor raceway system was designed by Legrand/Wiremold for permanent or temporary installations where access through floors and ceilings is not an option.
This Rapid Ring self-adjusting pre-fab ring designed by Cooper B-Line allows for tool-free installation in as little as 15 secs, available for 1- to 4-gang SKUs.
CBS ArcSafe developed this RRS-3MBII remote racking system single application tool for GE Magne Blast circuit breakers of all elevating motor voltages and control circuit layouts.
CBS ArcSafe developed this remote switch actuator tool for GE RSA-76 Power Break II circuit breakers.
National Electrical Code Article 430 provides maximum protection for the equipment while limiting the nuisance tripping to a minimum. Failure to follow these requirements will not only result in unreliable system operation but will put the pump or fan motor at risk of significant damage in case of an overload or short circuit.
Bay Area Internet Solutions (BAIS) is one of the largest managed service providers in Northern California. After several significant service expansions in the early 2000s, the company set out to design and build its second co-location facility in Santa Clara, Calif. In designing the data center, eliminating unforeseen downtime was the main priority and the maintenance window tolerance was low.
The Arc Vault from GE stops an arcing fault in less than 8 msec to provide increased arc flash hazard mitigation with equipment doors open or closed. The system will feature an activation switch that can be used during routine maintenance to put the low-voltage equipment into a high-protection mode. When an arc flash occurs, the system send a signal to the arc containment device and the arc is ...
In the simplest terms, commissioning is the process of planning, documenting, scheduling, testing, adjusting, verifying, and training to provide a facility that operates as a fully functional system.
This is the first in a three-part series that describes the planning and implementation for an effective, sustainable program. The first part in this series will focus on hazard awareness, safe work practices, and reducing potential for ignition of workers' clothing from arc incidents.
The FastCAM pre-polished fiber optics connectors from Leviton test for fiber continuity and are compatible with a visual fault locator. The device allows termination on 250 mm, 900 mm, 2 mm, and 3 mm fiber optic cable. The pocket-sized device assists in diagnosing optical fiber damage by using a bright red laser to locate faults, including tight bends, breaks, and defective connectors.
The EcoFlow from Danfoss balances the distribution of refrigerant in air conditioning systems, while avoiding misdistribution in evaporator circuits. The valve calculates and adapts refrigerant flow to each circuit by using only one superheat sensor mounted at the evaporator outlet. By detecting imbalances in individual circuits, the valve correct corrects uneven refrigerant distribution and re...
The family of solar pumping products from Taco is designed for a variety of solar thermal applications. The Solar Pumping Station combines all the features for a closed-loop water heating system. The station needs five connections; two for the solar collectors, two for the storage tank's heat exchanger, and one for the expansion tank.
The EPA has set a date for the release of Energy Star ratings for data centers.
Technology awards highlight outstanding building projects that incorporate elements of innovative building design.
The PowerPlex panelboard from Appleton is targeted at Class I Zone 1 and Class I Division 2 industrial environments. The device transfers its flamepath protection from the enclosure to individual circuit breaker housings and the component-level protection allows for installation flexibility and safety.
Some companies are taking the plunge and submitting reports on how much carbon they emit.
In 2008, NetRiver , the leading provider of collocation and interconnect services in Washington, faced a major expansion and needed another 1.5 MW of clean, computer-grade power to match its growth. NetRiver's primary data facility in Lynnwood, Wash., provides a platform for carriers, Internet content companies, hosting firms, and enterprises to outsource their data center and network operations. The Lynnwood facility is NetRiver's newest data center and provides 250 to 500 W/sq ft or 5,000 to 10,000 W/enclosure. In designing the facility, the Lynnwood management team faced some constraints, along with several requirements.
Manage continued changes and complex connected loads through IT and data center facilities with the Liebert MPX from Emerson Network Power. The power distribution unit (PDU) enables on-site configuration of power input and distribution to meet IT needs and flexible capacity to support data center growth.
A study on the lifecycle assessment of LED lamps shows the latest generation of lamps achieves a very high score for environmental friendliness.
EGSA Immediate Past President Warner Bauer and Directors Vaughn Beasly, Charles Habic, and Dennis Roundtree were recognized and presented with plaques commemorating their years of service to the association. In addition to a plaque, 2009 EGSA President Greg Linton presented 2008 EGSA President Warner Bauer with a portrait in recognition of “his dedication and service to the association as...
The Electrical Generating Systems Association (EGSA) is a global organization with member companies involved in the generation, transmission, storage, and control of electrical power not directly supplied by public utilities. It is our pleasure to work with Consulting-Specifying Engineer once again to bring you this special supplement focusing on On-Site Power.
This article focuses on measures the multi-discipline design-build team took to ensure the UFAD project at a federal facility would be a success.
CSE Chief Editor Michael Ivanovich asks ASHRAE about the performance of its recently certified, LEED Platinum ASHRAE Headquarters.
Alternative green energy resources are becoming a reality due to advances in fuel cell technology done by Cummins Power Generation. Xin Li, senior researcher in the fuel cell field who works with Cummins Power Generation, predicts that on the basis of current progress, Solid Oxide fuel-cell based mobile power products will be commercially available in as soon as 2 to 3 years and higher powered 100-kW stationary power units will become available in 7-10 years. Fuel cell technology, the pollution-free electricity generation technology, which provides a green alternative to the combustion of gasoline and other fossil fuels, is anticipated to become the main source of energy to power electrical cars, trucks, buses and even homes. Functioning similar to a battery, which uses electrochemical conversion, fuel cells produce electricity from fuel (on the anode side) and an oxidant (on the cathode side), which react in the presence of an electrolyte. Solid Oxide Fuel Cells (SOFC), which operate on a mixture of hydrogen and carbon monoxide, are more compatible with existing fuel infrastructures including natural gas and the only by-products are water vapor and a small amount of carbon dioxide. In 2007 Cummins Power Generation was one of six industry teams involved in the Dept.
Detect hazardous electrical conditions before damage occurs with POWR-GARD ground fault protection relays from Littelfuse Inc. The relays can detect ground faults as they develop and alert personnel without nuisance tripping by using filtering technology. The relays also have communications for remote monitoring and can protect critical equipment in ungrounded, solidly grounded, and resistance-...
The Arrow Hart line of wiring devices from Cooper Industries were designed to repel dangerous contaminants in various environments. The line includes plugs, connectors, receptacles, and accessories. Watertight devices were designed for industrial applications where electrical connections are exposed to splashing and hose-down.
Pre-pour sleeves can save installation time for the Evolution series of poke-thru devices from Wiremold/Legrand. Designed for 6-in. or 8-in. holes in the slab, contractors can use the PVC sleeves attached to the structural decking instead of core-drilling holes after the slab is poured. Each unit includes three attachment legs, thumb screws, and end caps.
Wirelessly integrate measurements from separate temperature sensors with the TempTrackr from SenGenuity. The multi-sensor kit includes four passive wireless sensors that read temperatures from up to 70 in. away. The kit also contains a wireless interrogator with a dipole antenna and a USB connector for computer data visualization and acquisition.
View the full story, including all images and figures, in our monthly digital edition Founded in 1907, the University of Hawaii at Manoa (UH-M) is the flagship campus at the University of Hawaii. However, over the past several years, the university's student housing had become out of date and inefficient. School officials wanted to improve on-campus student housing, along with the community itself. One of the worst performers in terms of building energy usage was Frear Hall; a dormitory where students complained regularly about the housing conditions and lack of occupant comfort.
Federal Pacific is the first manufacturer to have Pad-Mounted Switchgear to pass the industry's toughest switch-testing requirements and be listed by Underwriters Laboratories Inc. using the requirements in IEEE Standard C37.74–2003 as the test specification. This standard, which is titled “IEEE Standard Requirements for Subsurface, Vault, and Pad-Mounted Load-Interrupter Switchgear...
The 1500 kW rental power unit from Cummins Power Generation Inc. is a complete pre-integrated system with 1,600 gal fuel capacity and improved fuel economy. A temperature-tolerant cooling system provides reliable operation in temperatures to 113 F, enabling the generator set to operate at maximum load without derating in a range of demanding climates.
The MTU engine series 1600 from the Tognum Group has power outputs 270 to 730 kW that are relevant for power generation systems, construction, and industrial machinery. They engines are offered in an in-line configuration with six cylinders as well as in V-configurations with 8, 10, and 12 cylinders covering a displacement range from 2.
Watt Stopper's Digital Lighting Management (DLM) is a suite of plug-together lighting controls with self-configuring sensors, switches, and other components. DLM saves more energy, and is faster and easier to specify and install than conventional controls. Engineered to meet and exceed energy codes, DLM provides an unprecedented return on investment for both new construction and retrofit projects.
National Instruments announced LabView 2009, the latest version of its graphical system design software platform, with more than 100 new or enhanced features.
PowerCommand automatic transfer switches from Cummins Power Generation Inc. are the industry’s first to achieve Underwriter Laboratories, Inc. (UL) -listed 10-cycle and 30-cycle withstand and closing (short-time) ratings. The UL listing assures that the OHPC open transition and CHPC closed transition switches perform at a high level, particularly for standby power systems requiring select...
Current Group hires utility veteran Ray Gogel to promote smart grid vision.
Support rack-mount applications with three-phase power with the HP14.4kVA power distribution unit from HP. The unit connects to a 50 amp, 3-phase circuit using the Hubbell CS8365C connector. The unit features a single input and 12 C19 outputs for connecting to servers, storage, and networking equipment.
Addressing the growing need for sustainable design in commercial facilities, SHW Group redesigned its Dallas office in a manner consistent with its design principles—sustainability, basic architecture, and collaboration. SHW Group installed the Convia Sustainable Infrastructure from Convia Inc./Herman Miller Co. , Buffalo Grove, Ill. The infrastructure is a smart-building platform that features “plug-and-play” power to anywhere within a space without the need for hardwiring of devices or switches.
Integrate KVM and serial devices into a single management console for all servers including blades, network devices, and infrastructure products with the Server Console Switch G2 from HP. Requiring no software to be installed on the target servers, the switch starts at 8 ports with the scalability to support up to 256 servers.
View the full story, including all images and figures, in our monthly digital edition Cheap, accessible energy is so integrated into our lives that it is a fundamental American expectation. We flip a switch and the power comes on. We drive to the corner and fill the gas tank.
Manage dynamic heat loads in data centers with the Heat Containment System from Wright Line. The system integrates into existing cooling infrastructure and captures, manages, and directs heat exhaust from IT equipment to the top rear of the enclosure. The field-installable system also features optional air flow management accessories such as blanking panels, by-pass airflow grommets, cable mana...
Supply power for 15 min in back-up primary power systems applications with the DataSafe line of UPS valve-regulated lead acid batteries from EnerSys. The batteries produce 506 WPC for 15 min to 1.67 V/cell at 77 F. The device weighs 110 lbs and measures 13.4 x 6.8 x 10.8 in. The batteries feature high-conductivity recessed brass terminals, high-integrity terminal seals, and corrosion-resistant ...
Created exclusively for the specification market, the Precision Two-Circuit Track System is engineered for high-performance commercial installations. Released by W2 Architectural Lighting, the track is made from extruded aluminum, with each circuit independently controlled and switched. Additionally, the Two-Circuit System can be mounted to ceilings or walls for high-profile jobs, and can be lo...
New operators that can be snapped on, requiring no tools, make Danfoss Heating’s RA 2000 thermostatic radiator valves significantly easier to install compared to previous models. The operators are gas-filled, reacting quicker to changing temperature than other fluids would, locking room temperature and increasing free heat distribution, which results in saved energy.
Alliance will to develop comprehensive energy management solution for commercial.
The theme of the fourth annual World Energy Dialogue was energy supply security.
ASHRAE has published an updated guidance for buildings in hot and humid climates.
The EPA formally declared carbon dioxide and five other heat-trapping gases to be pollutants that endanger public health and welfare, setting in motion a process that will lead to the regulation of the gases for the first time in the United States.
AMCA International, the Home Ventilating Institute (HVI), and Energy Star recently teamed up to revise the Energy Star program requirements for residential ventilating fans. The goal was to provide residential consumers with energy-efficient, quality ventilation products without sacrificing features, style, or comfort. This collaborative effort resulted in revising the testing requirements, and partners (companies that participate in the Energy Star program) now have more options as to where they can test their products for Energy Star qualification, including AMCA's testing laboratory at the AMCA headquarters in Arlington Heights, Ill. The revised program went into effect on January 15, 2009. The new requirements in the program do not grant exclusive rights to any organization to certify, verify, or challenge-test Energy Star-qualified products or products applying for Energy Star qualification.
View the full story, including all images and figures, in our monthly digital edition When Bick Group set out to build our new headquarters in St. Louis in June 2006, we challenged our staff to convert a former printing company's building into a state-of-the-art showcase for occupant comfort, IAQ, energy efficiency, and water conservation. The team succeeded. The building was certified as LEED Gold by earning 44 points under the U.S.
Mississippi-based SmartSynch partners with the telecom giant to provide wireless meter-monitoring technology.
Hewlett Packard’s T750 G2, T1000 G3, and T1500 G3 tower UPSs are geared toward small to medium businesses, remote offices, and retail establishments requiring power protection in a compact unit. Power ratings are 750 VA, 1000 VA, and 1400 VA, respectively. HP Power Manager software lets users monitor or control a UPS remotely through a browser-based interface.
MADCAD launches eLibrary version 3.0, which searches through more than 7,000 codes and standards faster.
View the full story , including all images and figures, in our monthly digital edition ASHRAE will be unveiling its certification program for commissioning (Cx) in June. In doing so, it will become the sixth organization offering a Cx certification credential. Certifications are currently offered by Associated Air Balance Council (AABC), Assoc.
Built in accordance with MIL-STD-2003 and tested per MIL-STD-202G, and method 301 and 302, the circular MIL connector custom cable assemblies from Electro Standards Laboratories are designed for military and shipboard applications. The cable assemblies range in wire gauges from 0 to 26 AWG and high density contact arrangement are available in miniature circular shells. www.ElectroStandards.com #3.
Recent hires and promotions
This week, ITC Holdings, Novi, Mich., began a major electricity transmission project that will bring renewable energy from sparsely populated, wind-rich areas to heavily populated urban areas like Chicago and Minneapolis.
The Electric Power Research Institute has launched a project designed to help power companies add solar energy to their fossil-fueled electric power plants.
In the days surrounding President Obama's inauguration, Aggreko provided temporary power and heat for the various events and security.
The National Fire Protection Assn. Conference and Expo will bring a range of products, technology, and networking opportunities to the Windy City.
BLM finalizes plans to open 190 million acres to geothermal power.
AirArrest from Tate Access Floors Inc. is a through-wall wire sealing solution for structure with underfloor air distribution (UFAD). The product's patent-pending brush technology prevents leaks of pressurized air around power and data cables that pass through wall cut-outs.
Wired magazine lists its top green picks. Which are you incorporating into your engineering design?
IEEE Standard 1584-2002, Guide for Performing Arc Flash Hazard Calculations, is the most widely used method of calculating arc flash hazard levels, and a realistic available fault current value provides critical input for proper evaluation. The analysis method requires a second calculation at 0.85 of the originally calculated arc fault current. This calculation is designed to transform the given available fault current and other parameters to a calculated arc flash current value. Relying on the IEEE equations to compensate for an inaccurate available fault current can yield unacceptable results.
The AKD-20 Low-Voltage switchgear from General Electric Consumer & Industrial provides an optimized footprint that uses smaller section sizes when possible. Operators are protected from hot ionized gases during an arc flash incident because of a sealed breaker compartment door. The unit also offers optional safety shutters to protect against accidental contact with live conductors when the breaker is withdrawn.
Honeywell International's line of UL listed PVC and plenum low-voltage wires are designed to optimize performance of thermostat controls, doorbells, and heating and air conditioning equipment. The wires are compatible with both digital and analog thermostats. Available in various colors, these solid copper conductors measure from 18 to 20 AWG. www.honeywell.com #10.
The flywheel energy-storage system from VYCON is compatible with major manufacturers' UPS systems rated up to 300 kW and can be paralleled to meet larger power requirements. Units can provide ride-through power during generator start-up operations or operate in parallel with traditional batteries. The flywheel hubs are manufactured from aerospace-grade steel and incorporate a high-speed permanent magnetic motor/generator, contact-free magnetic bearings, and a touch-screen control system that provides performance and power-event logging information. VYCON Circle 467.
Square D's low-voltage motor control center incorporates the manufacturer's M-, P-, and R-frame 800 A to 2,500 A main circuit breakers, in a design that can minimize space requirements. The CPU-based electronic trip units built into the breakers enable automatic closing and opening of main utility-feed and generator breakers. Additional functionality includes the capability for multiple protective adjustments, power metering and monitoring, and power-quality measurement. Schneider Square D Circle 464.
The PowerCat 6A shielded solution from Molex supports 10 gigabit Ethernet, 10GBASE-T, and IEEE802.3 systems. The product offers alien crosstalk mitigation and insertion loss that surpasses that of unshielded systems. The unit provides shielded, angled patch panels with rear cable management trays to reduce cable strain while eliminating the need for horizontal cable rack managers.
Power Plus will sell and service Mitsubishi’s UPS products.
Ferraz Shawmut awards $300 for technician’s high electrical IQ.
Power utilities again weigh the costs, and the ensuing price hikes, of armoring power lines.
The American Society of Safety Engineers’ SeminarFest will be a week of intensive seminars relevant to safety professionals.
Square D, commercial multi-metering tenant metering sections from Schneider Electric Inc. feature integrated front-accessible load-side wire-ways for faster installation. Units are available in three- or six-socket configurations that use either circuit breaker or fusible tenant main disconnects. The sections can be used in both indoor and outdoor enclosures and are available in 24-, 36-, and 4...
The Guard Family of circuit breakers manufactured by Master Distributors provides precise overload protection and accurate trip time as needed by the application.
The Mr. Slim M-Series MSY(Z)-D30/36NA single zone systems engineered by Mitsubishi Electric and Electronics USA Inc. feature heating and cooling capacities of 30,000 and 36,000 Btuh.
Ouch. The ideological collision of recent federal actions has my head aching with mixed feelings. On one hand, the government bailout of Wall Street financial firms, which constitutes the largest act of graft perpetrated on the public in history, has champagne corks kissing the gilded ceilings of Wall Street.
The Wiremold Secure Solutions raceway (WSSR), designed by Wiremold/Legrand is a high-capacity perimeter raceway system that provides modularity and scalability in hardened carrier protection distribution systems.
The main 4,000 amp service breaker associated with a research and development facility has experienced a number of unexplained trips.
Ensure system availability, flexibility for growth, and durability for reduced downtime in server rooms, data centers, and network access spaces with Knurr racks and enclosures from Emerson Network Power.
High performance SignalPlus interconnect cables from Coleman Cable support
ATEX-certified Zonex enclosures are fabricated from stainless steel, with a silicone gasket for protection in hazardous locations. The enclosures, manufactured by Hoffman, meet safety requirements for the ATEX Directive 94/9/EC,
LapSeal, manufactured by Armacell, is a dual system enclosure that provides a reliable, long-term seal. The unit can perform over tight turns such as elbows and P-traps, providing protection from moisture vapor and heat. An advanced pressure-sensitive adhesive on the seal allows the insulation to remain sealed and maintains its integrity.
Fluke Biomedical's ESA620 Electrical Safety Analyzer features DSP technology that improves accuracy and offers a large display for enhanced information during testing procedures. Ten available ECG posts can be used to conduct both electrical safety and patient-monitor tests with a single connection.
The National Association of Electrical Distributors (NAED) is currently developing a new certification program for distributors, manufacturers and others in the channel: the Certified Electrical Professional (CEP) . The first tests for both inside and outside sales will be offered in June 2009. Applicant bulletins will be sent in March 2009 and actual applications will be available in April 2009.The NAED Education and Research Foundation Board of Directors unanimously approved the Education and Development Council's (EDC) recommendation to develop an industry certification program that would validate the training, baseline knowledge and skills required for key positions in the industry.
A range of high-quality mechanical limit switches from Carlo Gavazzi is available in six different body sizes, including the common industrial styles. Various operating head and lever options such as push button, roller levers, and multidirectional levers are available. The smaller limit switch housings are filled with epoxy and prewired with a 1-meter cable.
Designed to power video equipment and other security accessories, Honeywell's 17 varieties of weatherproof supplies are easily installed near outdoor PTZ camera housings, along fences for perimeter intrusion systems or at power-controlled gates. For further protection, eight styles of surge-protected, weatherproof units provide consistent power while safeguarding valuable security equipment fro...
PowerMod HP by Anderson Power Products offers various high-power connectors in multiple housing types. It features touch-safe female housing, cable strain relief, and integral positive latches. The connectors provide low electrical resistance, have a minimum of 500 mating cycles, and are rated for circuit interruption.
A wireless key switch released by Echoflex Solutions provides an efficient power-saving solution for hotel rooms. A self-powered switch is triggered when a hotel key card is inserted or removed from its dock. A radio signal is then transmitted to a controller, which takes appropriate action. In the case of the card being removed from its dock, power-consuming utilities are regulated or disabled...
ASHRAE and other authorities on building commissioning have promoted three commissioning-related documents—the owner's project requirements (OPR), basis of design (BOD), and systems manual (SM)—as valuable commissioning tools that not only facilitate effective commissioning, but also provide valuable information to operators and designers throughout the life of the building.
Back up the primary power system by supplying power for 15 min. with the DataSafe 16-V battery. The battery is available in two sizes, 500 W per cell and 925 W per cell, and the 16-V front-terminated batteries require only 44 sq. ft to support a 750 kVA UPS system with a full 15 min. of run time. The batteries require 20% less space and scales to large capacity systems.
Commissioning on campus I enjoyed reading the article “Commissioning on Campus” (CSE 04/08, page 27). The real-life scenarios especially piqued my interest. The author is correct in pointing out how the contractor's version of the design drawings would disturb the flow to the cooling towers, but on careful examination of the photo in Figure 1, a problem of equal or greater import ...
Handle any input condition, while supporting present and future computer loads, with up to a 0.95 leading power factor without derating with the Liebert NXL UPS platform. The platform is available in 250 kVA, 300 kVA, and 400 kVA ratings. The platform features overload and fault-clearing capability, color touchscreen controls, matching battery, and maintenance bypass cabinets, and built-in batt...
The Air-Conditioning, Heating, and Refrigeration Institute announced development of the Infrared Heater Safety Council, a safety education initiative dedicated to reducing fires caused by the misuse of infrared heating equipment used in commercial buildings.
Southern California Edison (SCE), Rancho Cucamonga, Calif., proposed a collection of voluntary greenhouse gas reduction projects ahead of the state’s final climate change rules that are due in 2012.
Drawing Rules and Regulations NO PURCHASE NECESSARY TO ENTER OR WIN How to Enter: You will automatically be entered in the contest when you complete the survey at: https://www.csemag.com/info/CA6558969.html by July 31, 2008 No purchase is necessary to enter or win, and purchase will not affect your odds of winning. Limit one (1) entry per person. Multiple entries will be disqualified.
Offer quiet operation and flexibility with packaged terminal air conditioner and heat pump (PTAC) units from McQuay International.
The new high-temperature FL3111HT UV Flame Detector from General Monitors operates in temperatures as high as 257 F.
Eaton Corp. announced the introduction of its new 10 kVA Pulsar MX Frame. Sold under the MGE Office Protection Systems brand, Eaton's Pulsar MX Frame is now available in a 10U configuration.
Wind power provides 5.5% of the electricity generated in Iowa, making it the leading state for wind power generation on a percentage basis, according to the American Wind Energy Assn.
News from Pass & Seymour/Legrand, Luxaire Heating and Air Conditioning, Robroy Industries, GE Fanuc Intelligent Platforms, Johnson Controls, Daikin Industries, VYCON, RAE Systems, and Honeywell.
Specify the highest capacity poke-through device on the market with the Evolution Series Poke-Thru from Wiremold/Legrand.
Parallel 3-phase UPS from HP is intended to help customers improve IT operations with better power density, power efficiency, and flexibility. The pre-racked UPS systems provides 36 kW of power or 24 kW with N+1 redundancy. Housed in a single HP 10000 Series G2 42U rack, it can be expanded to 60 kW with N+1 simply by installing up to 3 additional modules.
Biomedical- and laboratory-Grade UPS from Falcon Electric is specifically designed for the unique power demands of biomedical and laboratory equipment. Designed to protect valuable tests and scientific processes, the double conversion, on-line FH Series 3 to 10 kVA UPS assure the highest level of pure power required by analyzers, sequencers, diagnostic equipment and gas chromatography/mass spectrometer (GC/MS) instrumentation, as well as other sensitive testing and computerized processing equipment. For more information, click here .
Wireless submetering family from E-Mon now includes three-phase kWh submeters with 15-min. interval data recording capability. Other additions include a module for interfacing the installed base of almost half a million E-Mon D-Mon electric submeters to E-Mon’s wireless automatic meter reading system.
Part 16 of this continuing series looked at computer programs used to assist in electrical system design and protection. Part 17 continues a look at how one computer program assists engineers in electrical system design.
Advances related to the BACnet standard, including the recommendation of a public review for addendum that would tunnel BACnet over ZigBee wireless networks, were made in January at the ASHRAE winter meeting.
The Fire Protection Research Foundation is seeking proposals to develop a communications strategy for a residential electrical system aging research project.
Power quality and reliability are as critical to research and development facilities as they are for production, manufacturing, and data centers. A power event in the lab can result in lost data, specimen destruction, equipment failure, and lost preparation time—unacceptable in today's costly R&D programs.
Compact Circuit Protector offers 200-kA short-circuit current rating (SCCR), using just one-third of the space of equivalent rated circuit breakers and two-thirds the space required by a traditional fusible switch.
For any facility that handles key financial data, 100% up time is a must. When there is a power event, this kind of reliability depends on a seamless system of transferring power from primary to backup systems.
Remote power distribution cabinet brings power distribution closer to the load, blending physically and cosmetically with rack equipment, while offering the distribution capabilities of a much larger unit.
It's no secret that building evacuations disrupt productive workflow. And building evacuations may be caused when power fails to restore automatically through automatic and reliable transfers. Engineers can minimize power failures through transfer switches by following the model set by ARX Engineering, Alberta, Canada.
Uninterruptible power supply is double-conversion, online system that offer optimum power quality and availability for protecting network, telephony, medical, and industrial applications.
The system protects an entire facility from all sources of transient overvoltage.
Hubbell Wiring Device-Kellems has added a line of metal floor boxes to its modular, in-floor wiring system.
Monitor multiple fire alarm systems with real-time information in text or graphic detail via CAD-type drawings with the Point Mobile from Gamewell-FCI. The new wireless tablet PC provides information to facility managers, security personnel, and emergency responders. The monitor works in conjunction with immobile workstations and communicates via cellular broadband connection.
The National Electrical Manufacturers Assn. has published NEMA Application Guide for AC Adjustable Speed Drive Systems.
Clamp meter features extra-wide jaw that enables users to easily clamp around large or multiple conductors typically found in areas with significant power loads, such as at the service entrance of large pumps or sizable facilities. The true-rms clamp meters measure up to 2,000 amps DC and 1,400 amps AC to address a wide range of high current applications, and have a 600 V CAT IV and 1000 V CAT III rating for added user protection. For more about models 353 and 355 from Fluke, click here.
Selective coordination is a goal in any power distribution system design. Achieving selective coordination in a power distribution system served by two power sources with disparate impedances and capabilities presents a real challenge. Join us for a Webcast on Friday, Feb. 8, 2008 11am PST/1pm CST/2pm EST.
Ask the experts : Wireless controls Wireless controls are a promising emerging technology that has sufficient installations now to merit a healthy discussion of the benefits and challenges of these systems and real-world design and specification guidance. But how common are they? What situations are you using them in? What issues have you run into that you need help with? Click here to post your question for the experts to answer.
Part 15 of an ongoing series about protecting electrical systems offers tables for a quick method of determining fault current at the ends of feeders of various size and length.
GE Energy Financial Services raised its 2010 target for renewable energy investing to $6 billion.
This wireless data logger, designed for HVAC engineers monitoring facility temperature and humidity, allows the user to monitor real-time data from a desktop PC.
Mechanical, electrical, plumbing, and fire protection engineering firms are listed here, including a brief company description and Web site address. Users can select the best consulting or specifying firm that fits their commercial, institutional, or industrial building engineering needs.
Almost three years ago, Consulting-Specifying Engineer published “Bullish on BACnet,” an article by then editor Jim Crockett, to update its readers on advances in ANSI/ASHRAE Standard 135-2004, “BACnet—A Data Communication Protocol for Building Automation and Control Networks.
Monitor key data and control all operational functions of automatic transfer switches with the Model 2000 PLUS from Russelectric. The microprocessor-based automatic transfer control allows remote monitoring with an open communications protocol communications network or through an Ethernet network. The system reports all key power data—metered readings and computed values—through hig...
Provide a high-speed connection alternative for applications where complete cabling is restricted with hybrid cabling from Phoenix Contact. The cabling has a keyed header on one side and flying leads on the other side, which reduces wiring time and errors—increasing production throughput by 66%.
Maximize space for data centers with the NetShelter SX 1200 mm Deep Enclosure from APC-MGE. This model is 5 in. deeper than standard enclosures. The model offers unique cable management design, including an additional pair of cable channels at the rear of the enclosure. This provides room to mount as many as four vertical rack power distribution units on one side.
News from Bosch, Gamewell-FCI, Danfoss and more.
Compact variable-frequency drives, industrial lead-acid batteries, Web-enabled Ethernet for power meters.
The National. Electrical Contractors Assn. recently published NECA 420-2007, Standard for Fuse Applications.
The National Electrical Manufacturers Assn. has published the reaffirmation of NEMA Installation Guide for Nurse Call Systems (R2007). These guidelines cover the proper physical installation of nurse call systems.
The microturbine technology will help New York reduce its greenhouse gas emissions and allow building owners to generate a portion of their own electricity throughout the five boroughs.
Intelligent fire alarm control panels, PTZ cameras, audio/visual notification appliances, and IP communication modules for FACPs.
Thermostat wire adds a ripcord with an easy-to-strip feature that helps prevent inner conductor nicks and cuts. The ripcord is available in all gauges, lengths, styles, colors, and in reels. (Baron Thermostat wire ripcord by Coleman Cable) www.colemancable.com Input #1 at www.csemag.com/QuickResponse Fiber optic connectors provide precision mechanical termination of single-mode or multi-mode...
White paper examines how preventive maintenance frequency increases UPS system reliability and performance
Emerson Network Power, Columbus, Ohio, has announced the availability of a white paper entitled, “The Effect of Regular, Skilled Preventive Maintenance on Critical Power System Reliability.”
Scalable UPS for industrial applications and process control, TVSS, and swimming pool grounding and bonding
How many times have you seen or heard of a home destroyed by fire due to faulty wiring? Oftentimes, it is not recently installed wiring, but wiring that had been in the walls for years. Building occupants would hope that because considerable time has elapsed since installation, they could rest easy knowing that the wiring is safe and free of fault.
Digital multi-measurement, ground-fault sensing, data center solutions, and motor protection.
Bearing protection guarantee, free trial on downtime reduction circuit monitoring system and new automation and controls center
Dozens of architects, PTA presidents, school board members, school superintendents, and others from across the country are ready to begin a grassroots effort to further the vision of green schools for every child within a generation.
From 1965 through 1970, Consulting-Specifying Engineer’s predecessor, Actual Specifying Engineer, ran a series of articles on overcurrent protection. Due to the immense popularity of the 31 installments in the series, the authors, George Farrell and Frank Valvoda, PE, reprised the series in an updated version beginning in the Feb.
Emerson Climate Technologies, St. Louis, released the application-engineering bulletin for refrigerant retrofits. “Refrigerant Changeover Guidelines-HCFC R-22 to HFC R-422A/D” is an applicable guide for Copeland Discus compressors and environmentally responsible refrigerant solutions
The U.S. Dept. of Energy is betting that high-temperature superconductors have reached technical maturity with recently announced $51.8 million in funding for five projects involving superconducting cables and fault current limiters. Funding for the “Modern Grid Initiative” will be matched by participating research-team members, making the projects' total cost $103.
Reliable operation of security systems is essential to protect company assets and ensure human safety. Episodic equipment malfunctions plague security systems and compromise system integrity. These malfunctions often are related to the power quality environment. As data and communication equipment become more electronically sophisticated, they demand a higher quality electrical environment to e...
The National Fire Protection Assn. announced the launch of necplus.org, a web-based subscription service featuring up-to-the-minute editions of the National Electrical Code and NFPA 70E, Electrical Safety in the Workplace. The standards are accompanied by timely and enriched content on the site.
Just like the events in Alice in Wonderland, building performance isn’t always what it seems, according to a spokesperson from ASHRAE. To ensure that buildings are designed to and actually operate at peak efficiency as intended, ASHRAE is developing tools related to carbon metrics and performance measurement.
This year's 53rd Annual ASIS International Seminar and Exhibits takes place from Sept. 24 to Sept. 27 at the Las Vegas Convention Center, from 9 a.m. to 4:30 p.m. daily. More than 23,000 attendees are expected to see more than 950 exhibitors. Remote video surveillance transmits real-time video from deployed cameras.
Sporadic power outages hit downtown San Francisco on Tuesday, apparently the result of breakers opening in the transmission system at a nearby Pacific Gas & Electric substation.
Digital addressable dimming ballasts, in-line cords and cable tray.
Coe & Van Loo, a Phoenix-based engineering firm well-known for its expertise in land planning, civil engineering, two- and three-dimensional graphics, water resources, environmental science, landscape architecture, surveying and construction services, solves connectivity issues.
David Watson of Comcast is the 2007 recipient of the Chairman's Award from CTAM, the cable industry's marketing association.
In June, Oregon Governor Ted Kulongoski signed into law a bill creating a renewable energy standard that requires the state's largest utilities to meet 25% of their electric load with new renewable energy sources by 2025. “This bill is the most significant environmental legislation we can enact in more than 30 years that also will stimulate billions of dollars in investment—creating...
The Audubon Center at Debs Park is a unique off-the-grid building. The center’s systems are 100% solar, meaning that space heating, space cooling, hot water and electric power are all rooftop solar systems. This article discusses how the PV design could have been optimized if the building design was flexible enough to allow the PV to inform part of the building shape.
Royal Philips Electronics announced it has reached an agreement with Color Kinetics Inc. under which Philips will acquire all of the outstanding shares of Boston-based Color Kinetics, a designer of lighting systems based on Light Emitting Diode (LED) technology.
• Johnson Controls, Milwaukee, announced that its Metasys system field gear is now BACnet Testing Laboratory (BTL) certified, a status that confirms the components’ interoperability with other BACnet devices. For more information, go to www.johnsoncontrols.com. • ABB Drives, New Berlin, Wis.
Online double-conversion UPS systems and new standby generator models
American Superconductor has signed a contract with Consolidated Edison to develop and deploy a new high temperature superconductor power grid technology in Con Ed's power delivery network in New York City.
The world is now more than ever aware of the threat posed by bio-terrorism and emerging and re-emerging infectious diseases. No wonder so many bio-safety laboratories are being constructed. But many of these facilities are for owners who have never before built, operated or maintained a bio-safety laboratory.
Codes & Standards—Friend or Foe? Codes and standards, for all basic purposes, are supposed to be the basis of design. The one thing we must remember is that codes are laws, and standards evolve through financial investment in research and development. There have been occasions when standards have been adopted by various codes and are considered law.
Shell Canada faced a variety of arc flash challenges at its Burnt Timber gas processing plant—most importantly, employee safety. Shell’s search and ultimate success in finding a solution to its arc flash challenges began with a request for a short circuit, coordination and arc flash study at the facility. The company from which they sought this assistance ended up stepping in and providing a comprehensive management solution to update Shell’s equipment to meet and exceed the safety standards. They performed a comprehensive analysis of the facility, which showed that most of the plant was at a category 4 or higher arc flash level, as defined by the electrical safety standard NFPA 70E.
Heavy-duty industrial in-line valve series is specifically designed for use in extreme operating conditions. The new product incorporates spool technology for effective use in applications where pneumatic systems have to operate at extreme temperatures in the range of -40 here . Water heater and boiler product lines now offer greater venting flexibility with new vent reducer kits. Available for installation with Category IV vent systems, the vent reducer kits allow the vent diameter of each model to be reduced by as much as 45%, thus reducing the installed cost.
A snapshot of some cutting-edge intelligent lighting applications and tips on how to successfully incorporate smart lighting into buildings. CSE: What are building owners' needs and expectations and how do you make sure that they're involved? YORGEY: The lighting design process must begin with the programming step.
At a recently opened hotel near Lake Tahoe, a guest reported a small leak in the ceiling. Investigation revealed the source: a pinhole leak in a copper pipe that was part of the 15-story building'srecirculating hot-water system. A similar leak was reported soon after … then another … and another.
Neutral grounding resistors are available in a NEMA 3R enclosure with standard features such as a solid-steel cross-kinked one-piece top, a top ventilating screen, stand-off insulators and high-quality stainless-steel resistor elements, either stamped grid, edgewound or wirewound. Optional features include powder coat finish, a stainless steel enclosure, elevating stands and a current transformer. For more about neutral grounding resistors from Post Glover, click here . Fiber-optic indoor and indoor/outdoor interlocking cable is an aluminum armored design that is said to eliminate the need for inner duct or conduit with a smaller crush resistant pathway for improved design flexibility and lower installed cost.
The Energy Policy Act of 2005 required that the U.S. Dept. of Energy (DOE), in consultation with the Federal Energy Regulatory Commission (FERC), conduct a study of the potential benefits of cogeneration and small power production.
Awater-chilled, closed-loop cooling system mounted on an IT equipment rack makes it possible to achieve hardware densities and power consumption levels that have been difficult—if not impossible—to support with conventional HVAC systems. In particular, the system allows data centers to resolve specific hot spot occurrences without revamping the overall infrastructure.
In order to handle future electrical demand, a major scientific university (name withheld by request) in the Boston metropolitan area undertook an ambitious program in the last few years to upgrade every facet of its power distribution system. As one of the premier technical engineering research and educational institutions in the nation, the school is well aware of its critical need for ensuri...
The power of lighting has been obvious to architects for centuries, but now, because of the path blazed by digital addressable lighting interface (DALI) control systems, specifiers consider it part of their province as well.DALI is the forerunner of even more sophisticated lighting technologies. Its impact on buildings, owners, tenants, occupants and the environment has been far-reaching. DALI became an accepted protocol of the lighting industry for networked ballasts in 2002. Each ballast with a DALI interface is addressable, meaning that it can be communicated with individually.
Vacancy sensors meet California Title 24 energy code standards and offer an option in achieving lighting efficiency. The devices handle incandescent, electronic low voltage, magnetic low voltage, fluorescent and compact fluorescent loads. There is no minimum load requirement, and each sensor accommodates as large as an 800 watt load.
$100 AmEx gift check from CSE Sweepstakes Rules 2007 NO PURCHASE NECESSARY TO ENTER OR WIN 1.How to Enter :To enter the sweepstakes, complete and submit an online entry form .You also may enter by sending a postcard with your full name, full address, phone number and email address to the following address: Consulting-Specifying Engineer, 2000 Clearwater Dr., Oak Brook, IL 60523. No purchase is necessary to enter or win, and purchase will not affect your odds of winning. “ Limit one (1) entry per person.Multiple entries will be disqualified. 2 .
• ASHRAE has received a $510,000 grant from the U.S. Environmental Protection Agency to provide guidance for designing and building healthier buildings with effective operation and maintenance programs that reduce exposure to toxics and asthma/allergy triggers. • The search is on for the Portland, Ore.
Editor’s Note: On Dec. 13, CSE hosted a webcast entitled, “Beyond Generators and UPS,” which addressed issues of emergency backup power in data centers. (Readers are urged to view the webcast; it can be accessed from the CSE homepage at csemag.com.) As is always the case, we were not able to accommodate all participant questions in the Q&A session following the webcast.
The electric power industry has joined with federal wildlife protection officials to announce an updated guide on how utilities can reduce bird injuries and fatalities due to interactions with power lines. The manual, “Suggested Practices for Avian Protection on Power Lines: State of the Art in 2006,” contains detailed, technical blueprints that power companies can use to devise or strengthen avian protection plans.ed injuries. “Power companies have worked diligently with federal agencies and conservation groups to devise construction designs and transmission line siting standards that protect migratory birds,” said EEI President Tom Kuhn at a ceremony in November hosted by USFWS. “With nearly three decades of collaboration under our belts, we’ve seen tremendous advancement in utilities’ avian protection efforts.” The Suggested Practices guide was developed under the auspices of the Avian Power Line Interaction Committee (APLIC), which has served as a clearinghouse for information and communication on avian and power line issues since 1989. With a membership base comprising EEI, roughly twenty individual utilities, and numerous research and trade associations, APLIC has worked with the electric power industry and the USFWS to curtail avian injuriesand deaths due to interactions with electric utility infrastructure. Under the 2005 avian protection initiative, utilities are encouraged, among other things, to make a corporate commitment to protect migratory birds; train staff in avian protection practices; undertake permit compliance, risk assessment, and mortality reduction measures; and provide public awareness and education programs. In addition, the guidelines embraced under this public-private partnership allow utilities to tailor their avian protection plans to match specific industrial and wildlife needs, promoting both bird conservation and electric reliability. “Last year, power companies significantly stepped up their commitments to avian protection by agreeing to develop and implement new conservation measures,” Kuhn said. “The 2006 Suggested Practices guide reflects the most effective engineering practices available and provides detailed technical guidance to help utilities reach their conservation and system reliability goals.” “I very much appreciate the Fish and Wildlife Service’s collaboration and leadership in this effort,” Kuhn added. “This continues to be an exceedingly effective partnership, and I’m pleased that EEI and so many utilities are part of it.” The updated Suggested Practices manual is available online at www.aplic.org .
Demand-side management (DSM) isn't a new concept—utilities began offering lower rates to customers who could reduce their electricity loads during peak-use periods more than a decade ago. But cheaper microprocessor power and new off-grid resources are creating new options for both utilities and their customers. Washington, D.C.-based GridPoint began selling a residential-sized power-management system called GridProtect in late 2005, which incorporates a gel-type battery backup unit and all appropriate interconnection equipment. The company's GridConnect product adds the ability to connect distributed-generation supply, such as from photovoltaic panels or a generator, to the rest of the system.
Howard R. Green Company, St. Paul, Minn., welcomes Ronald Armstrong as project engineer to its St.
It's time again for our annual tribute to M/E/P teams and projects that stood out from the crowd during this past year in Advancing, Reinvigorating and Cultivating excellence in engineering: in short, it is time again for the ARC Awards. We have reached a milestone this year, which happens to be the ARC Award's fifth anniversary.
In a development that can significantly enhance the reliability of transmission and distribution systems, the Electric Power Research Institute (EPRI), Palo Alto, Calif., has completed testing of a prototype design of a solid state current limiter (SSCL), a device that restricts fault current from new generation or transmission and reduces switching surges. The solid-state technology developed by EPRI, with primary support from Con Edison of New York, addresses the challenges faced by utilities as new sources of power are introduced to existing transmission and distribution systems.SSCL restricts fault occurrences when new capacity, such as the additional generation created by independent power producers, is integrated into existing power systems, creating a greater likelihood fault current. The device alleviates the short-circuit condition and gradually phases in the new current. This current-limiting capability improves fault isolation and network protection, and helps resolve critical situations that can cause voltage sags and swells and power outages. The next step in development of the new technology is to test it at a host utility to determine if it is suitable for widespread deployment. “The successful testing of SSCL is a milestone for EPRI and the industry as we work cooperatively to enhance of transmission and distribution systems,” said Arshad Mansoor, Vice President of Power Delivery & Markets at EPRI.“This technology will allow utilities to significantly increase the capability and reliability of their existing power lines.” Currently, utilities’ only option in addressing fault current issues is to replace breakers with higher-rated equipment, a solution that may not be economical or viable because of space constraints, and the difficulties associated with outages necessary for replacement may be severe. In addition, breaker replacements alone may not eliminate mechanical and magnetic bracing issues for other equipment that high fault currents pass through. “The Solid State Current Limiter demonstrates that we now have a new piece of equipment able to safely withstand the impact of and limit prospective fault currents,” said Patrick Di Lillo, technical specialist at Con Edison.“This newly developed device can be used to mitigate the effects of the increased capacity required to serve increasing loads in our urban centers.We have already begun work to migrate this technology to higher normal current and voltage ratings.".
• Advance, Rosemont, Ill., announced recently that its Advance University interactive ballast training website has been officially approved by the National Association of Independent Lighting Distributors for the “NAILD Lighting Specialist” (LS) certification program. • Carrier Corp., Farmington, Conn., has launched Expert Insight, a quarterly publication that features product updates, dealer features, business best practices and events in the HVAC industry. • Daikin AC (Americas), Carrollton, Texas, has named Mike Bregenzer as vice president and general manager of sales and marketing. He will be responsible for leading the sales and distribution channels of all Daikin residential and commercial HVAC systems for the U.S. and Canada. • Mick Morrissey and Mark Goodale, formerly with AEC consultant ZweigWhite, have formed a new company, Morrissey Goodale LLC, to exclusively serve AEC firms. • Modine Manufacturing, Racine, Wis., is forming a new Commercial Products Group that will combine the company’s Electronics Cooling and Commercial HVAC/R divisions to expand the company’s market presence in the electronics and HVAC markets. • Power Plus!, a California-based supplier of temporary power, completed a partial acquisition of JT Packard & Associates, Madison, Wis.
Earth ground testers perform all four types of ground-resistance measurements. The new models feature the “stakeless” testing method, as well as providing “selective” testing, the classic 3- and 4-pole fall of potential and 4-pole soil resistivity testing. Designed for use with comprehensive predictive maintenance programs for industrial, field service and utility applications, the testers are able to measure earth ground loop resistances using only clamps.
Fiberstars, Inc., a provider of fiber-optic lighting, was recently the recipient of a 2006 Wall Street Journal Innovation Award in Energy and Power. The awards are conferred annually by the editors of the Wall Street Journal .In 2006, the editors screened more than 600 initial applications, considering only 121 for the awards. Of those, 12 category winners and 37 runners-up were selected.Companies were judged by whether an innovation represents a breakthrough from conventional ideas or methods in its field and whether the innovation goes beyond incremental improvements of technologies that already exist, among other criteria. Fiberstars’s EFO (Efficient Fiber Optic) line of lighting fixtures has been developed to reduce energy usage across a variety of lighting applications and the company claims that it uses as little as 20% of the energy of traditional lighting systems. Fiberstars EFO technology, protected by more than 40 patents, employs large-core fiber optic cable to deliver light to up to eight individual endpoints from a single metal-halide light source. The light is UV free and radiates no heat, and its lamp life is typically four to six times that of halogen or incandescent bulbs, thus reducing maintenance and replacement costs above and beyond the energy savings. “We are very proud to be included by the Wall Street Journal among the leading innovators in energy and power,” said John Davenport, CEO of Fiberstars.“This recognition is a tribute to our entire team and reflects our commitment to continual innovation in the development of energy efficient commercial lighting systems.”.
In a sad, ironic parallel to the school violence that rocked the country last month, one of the more interesting security products shown on the floor of the American Society of Industrial Security's annual conference and tradeshow in San Diego this past month was a solution designed to better protect students. Johnson Controls demonstrated its new STAR system, which has just been adopted by Broward County Public Schools in Florida. The system, which uses Sisco's Fast-pass technology, is designed to comply with Florida's Jessica Lunsford Act. The legislation, which went into effect in September of 2005, set requirements for schools to prevent sexual offenders or predators from having access to Florida public school campuses. The way the technology works, according to Steve Thompson, JCI's director of marketing for fire and security solutions, is that anyone who visits a school is required to check in and present their driver's license.
After three years of planning with Microsoft and the School District of Philadelphia, The Prisco Group-designed "School of the Future" has won its first international award for an engaging, modern environment on a standard urban public-school budget. The Prisco Group, an architectural and engineering firm in Hopewell, N.J., was awarded the "Recognized Value" award for the "design in progress" as part of DesignShare/School Construction News' sixth annual awards program, "Models for the 21st Century." The school, which opened its doors on September 7, 2006, resides on seven acres in West Philadelphia's Fairmount Park and is aesthetically pleasing, technologically advanced, environmentally friendly and replicable throughout the world on a traditional budget. The project was identified as having "recognized value" in the ongoing dialogue about the design of more effective learning environments. Scott V.
Frost & Sullivan has chosen Eaton as the recipient of its 2006 Power Quality Company of the Year Award for its continued accomplishments in the power quality markets. This is the third consecutive year Eaton has received this Award recognizing a number of achievements. Eaton's electrical group sales are estimated at over $4 billion for 2005, and its power quality solutions group showed a growth of 8% to 10%. This growth is attributed to the company’s offering of a "solution-based strategy" to its customers.
Plexus Research , Boxborough, Mass., has been selected by Ann Arbor, Mich.-based DTE Energy to bring a two-way fixed network Advanced Metering Infrastructure (AMI) to its customers. DTE plans to begin AMI deployment in the first half of 2007 and complete the fixed network installation within four years. The new system is expected to produce significant benefits for DTE’s gas and electric utilities—and their customers. Plexus Research is a consulting engineering firm that specializes in AMI applications and other utility “customer technologies” that reduce costs, provide new service options and enhance the overall quality of service that utilities provide to their customers. These large systems usually include advanced-technology, solid-state meters with built-in data communications. “AMI deployment will significantly increase the accuracy and timeliness of bills received by DTE energy customers,” said Sitkauskas, DTE Energy AMI project manager.
The National Electrical Manufacturers Assn. has published “LE 4-2006, Recessed Luminaires, Ceiling Compatibility,” the purpose of which is to establish standardized dimensions for recessed luminaires. A NEMA spokesperson explained that compatibility, as referred to in the standard, means that luminaires will be designed to fit into ceiling systems without causing distortion or misalignment of ceiling members and in such a manner as to ensure their proper support within the ceiling in accordance with the National Electrical Code. Furthermore, compatibility means that a luminaire will be placed in support systems in a symmetrical manner without oversized gaps existing between the luminaire and ceiling tiles or ceiling suspension members. For more information on the LE 4-2006, click here . NEMA has also recently published “RV 3-2006, Application and Installation Guidelines for Flexible and Liquidtight Flexible Metal Conduits.” The purpose of this standard is to offer practical information on correct usage and industry-recommended practices for the installation of flexible metal conduit (Type FMC) and liquidtight flexible metal conduit (Type LFMC) in accordance with the NEC. "This guide is unique in that a single document provides the designer, installer and inspector with insight on appropriate uses based on UL listings, NEC requirements and manufacturer recommendation," says Dave Mercier, chairman of the Flexible Metal Conduit Classification. In other recent news from NEMA, the organization’s Low-Voltage Distribution Equipment (LVDE) Section has published a white paper on arc-flash analysis that highlights the need for utility system parameters in the selection of personal protective equipment (PPE). To view the white paper, click here .
Editor’s Note: From 1965 through 1970, Consulting-Specifying Engineer ’s predecessor, Actual Specifying Engineer, ran a series of articles on overcurrent protection. Due to the immense popularity of the 31 installments in the series, the authors, George Farrell and Frank Valvoda, P.E., reprised the series in an updated version beginning in the Feb. 1989 issue of CSE.
BACnet service tool gives user field access to controller point information. The tool runs on a Windows Pocket PC or laptop and automatically discovers and edits BACnet devices from third parties as well as the manufacturer’s lines of controllers. It provides multiple displays of the entire BACnet system, including objects within the device, and detailed views of the BACnet properties of selected objects.
This installment of our ongoing series introduces short-circuit calculations, starting with the fundamentals and proceeding on through available computer programs. In previous articles, we discussed the importance of overcurrent protection, presented fundamental theorems used in short-circuit calculations and examined component short-circuit ratings. This article begins the study of calculation methods. The fundamental electrical quantities used in short-circuit calculations are voltage, current and impedance, i.e., Current = K1 x K2 where K1 is a constant, depending on whether the circuit is single-phase or three-phase, and K2 is a constant by which the various levels of voltage and kVA in a distribution system system are related to each other. Typical short-circuit calculations are carried out using line-to-neutral values of impedance, with K1 = 1. Tabulated values of impedance for conductors and other circuit components are always given in line-to-neutral ohms.
• AERCO International, Northvale, N.J., has been awarded the U.S. Commerce Dept.’s Export Achievement Certificate. The award is presented to businesses that have benefited from the department’s commercial service export assistance to make their first export sale or open new foreign markets. • Alpha Technologies, Bellingham, Wash., reports that its chairman and founder’s namesake building, The Fred Kaiser Building, was recognized in a recent survey entitled “The Greater Vancouver GreenGuide.” • Automated Logic Corp., Kennesaw, Ga., a unit of United Technologies Corp.
There's a lot of pressure being a third-generation engineer. Add to that equation that your grandfather happened to found the firm you work for, your father is the current chairman of the board and, oh, you happen to be female—and young at that. Those were exactly the cards dealt to Shelley Vanderweil, an electrical engineer with—of course—R.G.
Credit earned, credit due We must take exception to an incorrect statement in the May 2006 issue. In discussing the McCormick Place West Expansion, the article, “Trading Up for Flexibility,” (CSE 5/06, p. 28) states, “the chilled-water-and-air system designed by ESD for the McCormick Center expansion.
The Electric Power Research Institute (EPRI) has announced the availability of its 2007 Annual Research Portfolio. The portfolio is a broad program designed to address and meet the scientific and technical challenges that face the electricity industry today, ranging from environmental management, cost effectiveness and reliable operations to the selection and design of new generation, transmission and distribution technologies. The 2007 Portfolio is said by the organization’s officials to reflect EPRI’s role in helping to ensure clean, reliable and affordable electricity in a carbon-constrained world and its commitment to enhancing the value of collaborative activities for members and the industry. To find out more about the 2007 Annual Research Portfolio, click here .
Brazil’s soccer team has demonstrated its “power reliability” in this year’s World Cup competition. (They just made it through the second round today.) Back home, there is another type of power reliability story to tell. The São PauloWorldTradeCenter opened in 1995. The 1.75-million-sq.-ft.
• Bala Consulting Engineers moved into its new office last august. Acting as the LEED Project Administrator, Bala designed, commissioned and registered its office space for the Certified Level for the Commercial Interiors (LEED-CI) Ratings System, and the company recently received official notice that the office was awarded the Certified Level. Bala is one of less than forty projects worldwide, and is believed to be the first engineering firm in the nation, to be awarded the LEED-CI Green Certification. • KTA Group, Inc.
Lead-acid battery tester is said to provide the user with 10-sec. battery testing, well-suited to large-scale battery applications such as for backup power. The handheld device tests both 12- and 24-volt batteries.
Power-monitoring systems can be valuable tools for reducing energy costs and identifying power problems that can affect uptime. But these tools are only useful if they're actually used. Which of the following options describes the frequency with which you use your power-monitoring system: A.
Researchers using nanotechnology have demonstrated a way to maintain high-temperature superconducting capabilities even in the presence of applied magnetic fields, such as those present in motors, generators and other equipment. Scientists say this discovery could lead to next-generation superconductors with broader applicability in the electric power sector of the economy. Magnetic fields in the past have disrupted superconductor operation by disrupting naturally occurring vortices present in superconducting materials, resulting in electrical resistance and power dissipation. Investigators at Oak Ridge National Laboratory in Oak Ridge, Tenn., addressed this problem by adding non-superconductive "nanodots" throughout the thickness of the superconducting material.
There's an age-old problem in electrical grounding. During the more than 15 years that I have been actively involved in equipment protection, over and over again, I have heard clients air their many concerns, frustrations and problems regarding electrical grounds, lightning and power quality issues resulting in malfunctioning or damaged equipment. In many of these cases, the root cause of erratic or improper equipment operation, as well as the inability of some equipment protection devices to properly function, turned out to be the electrical ground that the equipment is connected to. Widely used surge suppressors, lightning rods and air terminals (for facility, satellite dish sites, broadcast and communications tower protection and the like) are typically completely ground-dependent to perform their protective functions. In other words, a low-resistance electrical ground connection should always be available and working at the time of a surge or lightning strike. In addition, a reliable and consistent low-resistance ground connection is also important to reduce electrical noise in the protected equipment, and is especially desirable to enable radio-frequency transmitting and receiving equipment to operate efficiently. A great deal of time and effort is usually spent ensuring that the electrical ground at a facility is properly installed and that the resistance reading is within acceptable limits for the area.
Gas station owners across Miami-Dade County, Fla. , are now required to equip their stations with backup generation , to help prevent the gas shortages that plagued the region after last year's Hurricane Wilma . The storm knocked out electricity to many stations, shutting down their pumps.
Every year in America, electricity kills nearly 400 people, injures thousands more, and sparks an estimated 140,000 fires that cost billions of dollars in property damage. Most of these incidents are preventable. That's the message of National Electrical Safety Month , observed each May. This annual awareness campaign is organized by the Electrical Safety Foundation International, with support from the National Electrical Contractors Assn.
At the National Manufacturing Week show in suburban Chicago last month, worker safety, not surprisingly, was the subject of a great amount of discussion, not only in various sessions but also on the exhibit floor. Arc flash, and adherence to NFPA 70E, part of the National Electric Code, was, of course, a subset of this discussion, but in a disturbing sort of way. "A big question we keep getting is 'Do we have to do this?'" said Doug Mleczko with Des Plaines, Ill.-based fuse manufacturer Littelfuse. Despite adoption by OSHA, and a definitive warning by the agency that it will come down on plant and building operators in violation of NFPA 70E's requirements, the reality, according to Mleczko, is that many still view this as an optional guideline. The other key issue, he said, is that many plant operators, frankly, don't know how to go about complying with the standard. At the show, Littelfuse was giving away arc-flash incidence calculators and promoting its educational offerings in this area.
Papers are being sought for CLIMA 2007, which will focus on creating well-being in indoor environments in an environmentally sustainable manner. The conference will be held June 10—14, 2007 in Helsinki, Finland. Papers are also being invited for the first Symposium on Common Ground, Consensus Building and Continual Improvement: International Standards and Sustainable Building, sponsored by ASTM Committee E06 on Performance of Buildings and its Subcommittee E06.71 on Sustainability. The symposium will be held April 19—20, 2007 at the U.S.
Wireless technology for HVAC systems is becoming a regular point of discussion for facility managers. At least that's what one industry expert had to say following the recent National Facilities Management & Technology Conference in Baltimore earlier this month. According to Jim Kohl, senior product manager, wireless and sensor products for Trane, who presented an overview of wireless syste...
Work, like life, is not always a bowl of cherries. At one point or another, I'm sure most of you have experienced bleak points in your careers for whatever reason. I preach a lot about fighting the good fight for sustainability, ethics, integrated design, etc. But doing so often means you're going to take a few punches.
The National Electrical Manufacturers Assn., among others, is lending strong support to a provision in the Bush administration’s proposed FY 2007 budget that would spur the development of state-of-the-art lighting technology. The budget includes an $8 million increase for solid state lighting research and development. “The fact that the administration would provide an increase in funding for this program, while recommending cuts in others,” said NEMA President Evan Gaddis, “speaks volumes about the importance of high-quality, high-efficiency lighting to our nation. Improved lighting systems in our nation’s buildings and homes represent one of the greatest opportunities we have to save energy and ultimately reduce our dependence on foreign oil supplies.” The solid state research and development program, operated in partnership between the Dept.
Visitors to the “Controls and Automation” arena at the recent AHR Expo in Chicago were greeted by a new kid on the block. It’s the new face of the BACnet community: BACnet International. Just before the opening of the show, members of two former organizations voted to consolidate and rename their collective assembly. The two organizations had been known as the BACnet Manufacturers Assn.
When designing lighting for exterior areas such as parking lots and garages, engineers often find themselves dealing with two competing forces. On the one hand, there are the local energy codes. On the other are the recommended light levels from the Illuminating Engineering Society of North America (IESNA).
• Harley Ellis Devereaux has officially formed through the merger of HarleyEllis Corp. , Southfield, Mich., and Fields Devereaux Architects & Engineers , Los Angeles, effective January 1, 2006. The merger expands the combined firm to 500 staff members in seven locations throughout the U.S. • Rolf Jensen & Associates has chosen James H.
Indiana-based BDI Engineering offers electrical panel construction, installation and start-up services for process control, industrial refrigeration, power management, and food processing applications. Founded in 1998, BDI started as a simple panel-build shop that has today expanded into a turnkey solutions provider capable of designing complex panels for clients such as 3M, Coca-Cola, Dean Foods, Ford Motor Company, General Motors, Johnson & Johnson Nestle and PepsiCo. “The integrated expertise of industrial, electrical and mechanical engineering professionals enables us to zero in on the complete solution to a given problem,” said Brad Johnson, president and founder of BDI. “Having this capability allows our customers to deal with one small company for any control project, knowing that we have years of experience in the associated field of need.” But to compete with larger, more established system integrators, BDI needed to outperform its competitors in cost, quality and delivery time.
The National Electrical Manufacturers Assn.’s Signaling Protection and Communications Product Section, representing elements of the fire-alarm industry, recently released SB 30-2005, Fire Service Annunciator and Interface. Developed jointly by the National Institute of Standards and Technology, Building and Fire Research Laboratory, NEMA and the U.S. fire alarm industry, SB 30 facilitates the development of uniform equipment for use by the fire service to display essential information during fires and other emergencies, and is intended for use by both incident commanders and first responders. The 9/11 terrorist attacks, and the need for obtaining and distributing information about hazardous conditions in buildings in advance of the arrival of first responders, provided significant impetus in the development of this standard. SB 30 covers the design, operation and arrangement of equipment intended to display essential data and status of building systems for use by firefighters in the role offirst responders, as well as for incident commanders.
Today's thermal energy facilities are striving to provide heating services in a more cost-effective manner, and one option being considered more and more frequently is heat-recovery chillers. But before implementing this technology, the designer should begin a detailed cost analysis to determine whether the cumulative savings in operational costs will justify the capital investment and the increased maintenance costs associated with the heat-recovery chillers and their auxiliary equipment. The first thing to do is identify all cash flows that will result from a heat-recovery project. It's a good idea to list all costs associated with the heat recovery chillers, as well as those associated with not pursuing the heat recovery project.
Commercial boiler product line offers a fully modulating burner with 5:1 turndown and a cascading feature that allows multiple boilers to be controlled by one central boiler. The turndown feature allows units to generate as much or as little heat necessary to provide a consistent, stable indoor temperature. The boilers are available in seven models with inputs from 80 to 500 MBH.
• Honeywell, Minneapolis, has acquired Tridium, a privately held software-development company based in Richmond, Va. with subsidiaries in London and Singapore. Tridium will continue to operate as a separate business entity within Honeywell's Environmental and Combustion Controls (ECC) business. • Anvil International, Portsmouth , N.H.
Codes = Safety As one of the authors of The Art of Overcurrent Protection, published by CSE (the series last ran in the early '90s), and as a member of NFPA, IEEE and the International Assn. of Electrical Inspectors (IAEI), I remain puzzled by the attitude of far too many engineers toward NFPA and ANSI standards.
A new type of transmission line promises utilities more than twice the transmission capacity of conventional lines while using existing towers and other equipment. The aluminum conductor composite reinforced (ACCR) line, developed by 3M , was first installed in the Minneapolis-St. Paul area in May.
The U.S. Green Building Council (USGBC) describes its Leadership in Energy and Environmental Design (LEED) green building rating system as a voluntary standard for developing high-performance, sustainable buildings. But as green design becomes more mainstream, LEED becomes less voluntary. For example, a number of institutions and agencies, such as the University of California, the U.S.
The Occupational Safety and Health Administration (OSHA) has extended the cut-off date for comments on its proposed rule changes to standards for transmission and distribution work to Jan. 13, 2006. The original Oct.
Wireless BAS is based on proven mesh topology. Wireless field level networks are ready to provide facility builders, owners and managers increased occupant comfort, greater flexibility, and optimized, efficient control of HVAC systems. Mesh topology field level network is said to be inherently self-healing, so users won’t have to worry about losing communication with control devices across the system.
• Johnson Controls, Inc. has earned the H. Bruce Russell Global Innovator’s Award for its Solutions Navigator facility assessment and planning tool, which provides a structured, interactive process for facility owners, real estate managers and other key stakeholders to quickly assess and prioritize common facility-related needs and practices. • Stanley Security Solutions announced that it has won a comprehensive security design-build contract called the Enterprise Wide Security Enhancements project with the city of Colorado Springs.s entire energy infrastructure including office/warehouse facilities, wastewater facilities, electric transmission and distribution sites and its electric and gas plants. • Selkirk L.L.C.
Manufacturers exhibiting at this year’s Power-Gen International tradeshow, which runs from Dec. 6 through 8 at the Sands Expo & Convention Center Las Vegas, are promising a peek at some cutting-edge innovations in power reliability and quality technology. The editors of Consulting-Specifying Engineer and Pure Power magazines will be there for in-depth coverage of the show. In the meantime, here’s a quick rundown on what some of the manufacturers are promising attendees: Eaton Corporation, Pittsburgh, Pa., is offering businesses a comprehensive way to manage the continuity, integrity and efficiency of vital electrical systems, improving operations while helping reduce excessive costs due to power loss and power quality.
Visit www.csemag.com for industry news and features November 3, 2005 Special Advertising Section Dear reader,Here is the next edition of Consulting-Specifying Engineer's product and system solutions showcase if you would like any additional information sent to you from any of the companies below regarding their products fill out this form Featured Products Alternative for insulated pipe applications Cooper B-Line Armafixy solution for an insulated piping system. Visit Cooper B-Line's website For more information on Cooper B-Lineclick here. McQuay McQuay To learn more about frictionless chillers, including a comparison of annual energy savings and payback time in four cities, click here. Visit McQuay's website For more information on McQuayInternational click here. Kohler Automatic Transfer Switches Kohler offers a vast line of automatic transfer switches to complement its full line of power systems. Available from 30 to 4000Amps, KOHLER transfer switches are fully programmable and offer flexible power control. Kohler switches are available in standard, programmed, service-entrance, bypass isolation and closed-transition configurations.
Through laptops, hand-held devices and even cell phones, building automation systems have taken to cyperspace, revolutionizing the accessibility and convenience of building controls. CSE: What are the main advantages of web-based building control? WESTPHAL: The ability to monitor and control a building from anywhere, anytime with an Internet connection and off-the-shelf browser software is the main advantage. Secondly, the cost of the browser software to display the web pages is free in Microsoft's Windows operating systems. LUNDSTROM: Web-based systems also can provide easier remote access to building controls for site managers and operators for troubleshooting during off-duty hours, assuming the IT department allows access via firewall ports. And the amount of time required for training building controls operators is significantly decreased, because most people are already knowledgeable about using web-browser software. TOM: I believe the primary advantage is a revolutionary improvement in accessibility.
• Greenheck, Schofield, Wis., has announced that Tim Kilgore has been appointed general manager for its damper and louver business unit and Airolite. Kilgore will be responsible for developing and executing the overall strategic plan for growth and distribution of dampers, louvers and architectural products • Speakman Company, New Castle, Del., has named Michael Trenham as its CFO.He replaces David Bailey who, after over 40 years with the company, will reduce his work activities, while continuing on as the treasurer. The Speakman Company has been actively involved in the plumbing industry since 1869. • Schneider Electric/Square D, Palatine, Ill., in an effort to expedite rebuilding efforts in hurricane-damaged areas of the GulfCoast, has deployed service restoration teams to the affected regions.
Current loggers record true RMS measurements of current parameters and include integral, flexible current probes for three-phase measurements up to 3000 Amps. Units are battery operated and allow recording over long time periods by reducing stored sample resolution of oldest data. Loggers can store up to 480,000 points and 64 samples per cycle.
Important new recommendations have been set forth in the latest incarnation of ASHRAE's 33-year-old Standard 62.1, Ventilation for Acceptable Indoor Air Quality. The stated purpose for 62.1 is "to specify minimum ventilation rates and indoor air quality that will be acceptable to human occupants and are intended to minimize the potential for adverse health effects." The standard applies to all indoor or enclosed spaces that people may occupy and it considers chemical, physical and biological contaminants that can affect air quality. Several sections relevant to the HVAC industry establish new criteria, or fortify existing ones. Chief among them are those aimed at minimizing liquid water and the potential conditions for microbial growth in air systems. New attention has been given to the design, construction, operation and maintenance of air distribution systems—all equally critical factors necessary for providing a properly functioning system for the life of the building. Significant new recommendations are given for controlling and managing the presence of water.
The wireless concept has found its way into building controls, initially penetrating the lighting market, but expected to expand to other building systems. And one of the main drivers of the wireless building controls movement is ZigBee. ZigBee is an open set of high-level communication protocols designed for use with low-power digital radios that are based on the Institute of Electrical and Electronics Engineers (IEEE) Standard 802.15.4. It is intended specifically for small building devices such as thermostats, lighting controls, ballasts, environmental sensors and medical devices.
Lighting control relay features a simplified, menu-driven setup that is offered in three ready-to-go stock cabinet versions. Available with four standard 120/277-volt relays, four 2-pole relays or four 347-volt relays for Canadian installations, they are capable of accepting input from momentary, maintained or toggle switches, as well as occupancy sensor, photocell and low-voltage devices.
Six research project proposals relating to the electrical industry have been awarded funding by the ELECTRI'21 COUNCIL of the Electrical Contracting Foundation from its 2006 research budget of $650,000. The six projects were selected from 75 original summary proposals submitted by researchers from around the U.S. The projects cover a variety of topics including worker’s compensation and new markets and growth opportunities in the industry. The winning proposals include: We Built This City:An Investigation of Factors Impacting Growth or Decline of Union Market Share in Large Cities.
Editor’s Note: This is the sixth in a bimonthly column that covers significant new issues raised by the 2005 Edition of the National Electrical Code. Fluorescent luminaires (fixtures) are often serviced while energized to avoid removing illumination from an area, including the replacement of ballasts. This often requires individuals to work while on ladders, allowing only limited movement and ability to react to shock incidents where the worker accidentally comes in contact with energized parts.
• Bentley Systems, Inc. announced that Bentley Building’s director of research, Robert Aish, Ph.D., has been named one of the top ten innovators by Building Design. Dr.
• Bentley Systems, Exton, Pa., has introduced the XM Edition of its flagship MicroStation V8 platform. The new edition is now available as a beta release to all Bentley SELECT subscribers. The comprehensive platform spans 2-D drafting, 3-D modeling, change management, digital security, visualization and animation.
• ASSA ABLOY Identification Technology Group , Walluf, Germany and Irvine, Calif., announced that one of its member companies, Interlock AG , an international multi-technology card solutions manufacturer, has completed the acquisition of the majority of the assets of the former printoplast Group , a specialist in preprinted plastic credentials containing advanced security features. • Actuent Corporation , parent company of Enerpac , has completed its acquisition of Hydratight Sweeney , Birmingham, United Kingdom, which manufactures and provides bolting products and services to the oil and gas, power generation, industrial and other end-user markets. Hydratight Sweeney will report into the Enerpac business and be included in Actuant’s Tools & Supplies segment. • Armstrong International, Inc. , Stuart, Fla., has formed the Armstrong Hot Water Group , Three Rivers, Mich., to provide customers with an integrated solutions approach to their hot water needs. • York International Corporation , York, Pa., was honored with a 2005 Climate Protection Award from the U.S.
• Albert Kahn Associates, Inc. , Detroit, announced that Kimberly Whitt has joined the firm as Director of Business Development. Whitt spent the last five years at DeMARIA in Novi, Mich.
Bi-Fuel Standby Generator by Generac Power Systems Bi-fuel standby generator has output ratings of 300 or 375 kW and can operate on up to 90% natural gas and 10% diesel fuel. Reduced consumption of diesel fuel under bi-fuel operation leads to significantly longer run times per tank of fuel, according to the manufacturer. The generator uses a method called combustion air gas integration, which introduces the proper amount of natural gas to the intake air prior to the turbocharger and takes advantage of the precision and response of the microprocessor controlling the mixture.
• The National Assn. of Electrical Distributors has announced several major contributions in recent months from industry suppliers to the NAED Education & Research Foundation: GE Consumer & Industrial, Louisville, Ky., has made a $500,000 commitment; Legrand North America, Hartford, Ct., has contributed $250,000 on behalf of all its businesses; Osram Sylvania, Danvers, Mass., has given a $250,000 contribution; and Siemens Energy and Automation, Alpharetta, Ga., has pledged a$250,000 commitment • In other philanthropy news, Honeywell, Minneapolis, has donated touch-screen programmable thermostats to 22 Rebuilding Together projects, a program that revitalizes homes across the United States. And Lochinvar , Lebanon, Tenn., has donated $3,000 to the March of Dimes.
Integrated enterprise system for physical and electronic security includes access control, CCTV, fire systems, imaging, photo badging and building management. Based on a cross-platform OPC, the system allows all components to easily exchange data and work together. (Building Integration System by Bosch) RS#1 Energy meter is a direct-communicating, BACnet MS/TP model for industrial and commercia...
A new offshore energy source offers the potential of clean, renewable electricity without the visual obstruction of giant wind turbines.
Editor’s Note: The following article was submitted to CSE in response to a report on arc flash that appeared earlier this year and arose from a discussion during the National Manufacturing Week in Chicago in March. Serious workplace injuries and fatalities from electrical arc-flash incidents have been occurring ever since electrical energy was first generated and distributed for productive applications. Arc-flash accidents that result in a serious injury or fatality occur five to 10 times a day in the United States.
Integration of BACnet and LON protocols has become easier, say the experts, but the focus has shifted to the convergence of BAS with IT networks, XML and web services. The CSE M/E Roundtable on BAS continues. Click here for part 1. CSE: Do you personally think one system is better than the other, or does it matter? EHRLICH: I don't think one or the other is better.
A number of changes to the International Plumbing Code were approved at the International Code Council (ICC) hearings, held at the end of February and the beginning of March in Cincinnati. These changes addressed issues in several areas of plumbing-system design.
LEED certification can be difficult and expensive to obtain, and therefore requires creative input from all design entities, including the electrical engineer.
American Superconductor Corporation (AMSC) announced last week that a collaborative effort by four leading Chinese research and industrial institutions has successfully demonstrated a 75-meter, three-phase high-temperature superconductor (HTS) power cable in a live distribution grid in northwest China. The cable was manufactured using AMSC’s HTS wire The Institute of Electrical Engineering (IEE), the Chinese Academy of Science (CAS) and the Technical Institute of Physics and Chemistry (TIPC, CAS) collaborated on the project with the Changtong Power Cable Company Ltd., who has operated the cable since December 2004 to supply power for Changtong's factories in Baiyin, Gansu Province. Results are being presented today in Shanghai at the Eighth National Conference on Superconductivity. According to Dr. Liye Xiao, director of the Academy's Applied Superconductivity Lab, the cable project is an important step in demonstrating that high capacity HTS power cables are a viable means to help meet the Chinese economy's growing demand for electric power. "Demand for electric power in China continues to grow dramatically year-over-year," said Dr.
Avoid some of the pitfalls of a bad award entry with Consulting-Specifying Engineer to enter or win. 1. Enter early. Each year, we receive some entries with a fatal flaw: some information is missing or misleading, the illustration is not suitable for publication, the entry form isn't signed, etc.
This is the fifth article in a series covering basic engineering and code issues for standby generators and critical systems used in commercial building. Standby generators play a key role in electrical distribution systems utilized in critical environments. Standby gensets can serve life-safety loads as well as legally required standby and optional loads as defined in Section 700 of the National Electrical Code.
New Products for Special Environments: Computing Platform, Mobile Data Center, Rugged Switches and Transformers
Substation computing platform is designed to replace office-grade PCs in control house environments. Along with protocol gateway for connecting older and newer equipment, the units are said to improve reliability and decrease maintenance in electrical substations and plant facilities. They are designed and tested to meet IEEE C37.90 and IEC requirements, have no moving parts or fans, operate over the range of -40° to +75°C and have an innovative watchdog processor to detect and alarm system problems.
The Electrical Contracting Foundation (ECF), the primary research arm of the National Electrical Contractors Assn. (NECA), is undertaking research—expected to conclude in 2006—for the development of an ANSI-approved industry standard defining best practices for protecting ground workers performing construction and maintenance work on electric transmission and distribution systems. Because protective techniques for workers aloft on transmission structures (poles) and in bucket trucks are better understood, these aren’t within the scope of the current ECF research effort. The research will only deal with protecting ground workers from the electric shock hazards of overhead line work. Underground T&D construction presents different safety challenges and will not be directly addressed.
A midtown office building will be the location of New York City's first cogeneration project to be synchronously connected to the grid of local utility Con Edison. The system is designed to supply 60% of the electrical load and 65% of the heating and cooling load for a 450,000-sq.-ft. building located at 717 Fifth Avenue.
Electrical contractors say power quality projects now comprise approximately 60% of their revenue—with 40% expecting their PQ work to increase during the next few years—according to a new survey from the National Electrical Contractors Assn.’s Electrical Contractor magazine. The “Power Quality Study” also shows that 93% of contractors who worked on PQ projects within the 12 months surveyed performed installation rather than maintenance. “Our reader survey not only measures the power quality spike; it defines the electrical contractor’s changing role and impact in the entire sector,” explains John Maisel, publisher of Electrical Contractor . The 40% of 434 qualified respondents who expect PQ work to increase over the next few years, gave as their main reason that computers and other types of electronic equipment will require clean power. They also cite concerns about poor or degraded power quality or concerns about the integrity of the infrastructure. Additionally, 30% of those who are not currently working on PQ projects but did so in the past say they expect to be doing PQ work again in the next few years for similar reasons. They also cite problems with power availability and/or alternative energy/cogeneration. Survey respondents were also asked how they expect their volume of work to change over the next few years on each of 11 types of equipment included in the study.
Consulting-Specifying Engineer is a registered provider of AIA Learning Units. Use the learning units obtained by participating in our Editorial Webcast Series as part of your ongoing professional education requirements. Order webcast CDs and start earning LUs on your own time today! Direct questions regarding the awarding of AIA learning units to Trudy Kelly at (630)288-8780. Please note , this online ordering system is optimized for Internet Explorer. Ordering may not process properly when using a different browser. 1.
Employee stock ownership plans, or ESOPs, are becoming increasingly popular among firms in the architecture, engineering, planning and environmental consulting industry, according to researchers at Natick-Mass.-based ZweigWhite. ZweigWhite’s annual Valuation Survey of A/E/P and Environmental Consulting Firms finds that the percentage of firms with ESOPs has increased from 17% in 2002, to 22% in 2003, and finally, to 26% in 2004. “ESOPs have been around for more than 30 years, but seem to be gaining in popularity in the [A/E] industry in recent years. One reason may be the legislative changes effective in 1998, which made S-corporations eligible to sponsor ESOPs,” said Ian Rusk, ASA, a ZweigWhite principal who specializes in financial advisory consulting. Another reason may be simple demographic forces. The A/E/P industry is a highly fragmented one, with tens of thousands of companies, many of them relatively small (under 100 employees) and still owned and operated by their founders. “With many of these first generation owners being of the baby-boom generation and nearing retirement, and given the tax efficiencies of ESOPs, it's not surprising to see more firms employing them as a tool to manage major stock redemptions,” said Rusk. He further explained that the tax advantages of the ESOP include the ability of the company to deduct the principal portion of ESOP debt and redemption of shares through contributions to the ESOP plan.
Editor’s Note: This is the third installment in an ongoing series that will cover basic engineering and code issues for standby generators. By Keith Lane, P.E., RCDD/NTS Specialist, LC, LEED APVice President - EngineeringSASCOSeattle References to standby, prime and continuous ratings were identified in my first column in this series on generators. This subject is critical but is sometimes overlooked. Therefore, it deserves some additional clarification. Once an engineer has identified the anticipated environment and load profile in which the generator is going to be located, additional sizing constraints must be considered.
Webcast program originally aired LIVE on Aired: June 8, 2004 This Webcast is only available on CD-rom: Purchase a CD-Rom of this Webcast Consulting-Specifying Engineer makes it easy to earn learning units right at your desk-- learn how ! Earn learning units for this Webcast:Click here to take the CEU test. There’s a confluence of technologies on the horizon that is beginning to affect the way buildings will be used and controlled, allowing buildings to react to business in real time. How do design professionals best incorporate and respond to changing building automation systems for today’s building projects? Find out in an exclusive Webcast event from Consulting-Specifying Engineer, and earn valuable Learning Units right from your desktop! Click here to download the presentation slides. Listen in as some of the industry’s leading experts speak out on some of the critical building automation implementation issues. Panelists will discuss solutions for the design and construction professional on such topics as: • BAS in airports, where gates are automatically lighted, heated/cooled depending on plane arrival/departure, and universities, where the BAS is tied into the class schedule program.• XML (extensible mark-up language), the potential bridge that allows businesses, owners and manufacturers to suddenly open the doors to vast amounts of shared information.• How XML allows Professional Engineers to add explicit information into their specification documents and bridge gaps that often occur between designer and builders.• How the Professional Engineer can better understand the possibilities of XML to aid the building owner.• How wireless technology is opening the doors for change and the implementation of intelligent building devices Moderated by: Jim Crockett, Editor-in-Chief, Consulting-Specifying Engineer630-288-8150 firstname.lastname@example.org Information from leading experts in the field:• A panelist representing the owner’s perspective• A panelist from the OBIX organization• A panelist with BACnet perspective• A panelist with a LonWorks perspective• An expert on XML and wireless technology.
Web-based graphical interface gives operators secure access to company’s building automation systems using basic web browser. Web pages are based on standard Internet technology—HTML and Java—and provide access to system status, events, trends, alarms and graphics 24 hrs. a day from any location with Internet access.
More often than not, data center managers resort to a dynamic approach in populating a data center with IT equipment. This approach accommodates the ever-changing requirements of business operations, which in turn drives the need for new and often the latest IT equipment available. Any void felt in IT capacity/capability requires an almost instantaneous solution due to our heavy reliance on IT equipment and infrastructure that has come to be the life line of any business. Equipment availability today has become less of a speed bump due to the quick response time by vendors/manufacturers in supplying product.
Retroactive reinstatement of a production tax credit this past fall was a breath of fresh air for wind power proponents. The credit, which provides tax incentives for U.S. wind-power installations, expired on Dec. 31, 2003. The reinstatement is retroactive to that date and effective through Dec. 31, 2005.
• GE Infrastructure , a unit of General Electric Company , will acquire Sarasota, Fla.-based Edwards Systems Technology (EST), the fire detection systems business of SPX Corp. , for $1.395 billion in an all-cash transaction. "GE Infrastructure is rapidly becoming the premier security provider and acquiring Edwards positions us as a leader in the $5 billion fire-detection and life-safety segment," said Bill Woodburn, President and CEO of GE Infrastructure. • York International, York, Pa.
New architectural products catalog showcasing a diverse line of louvers includes product descriptions, engineering drawings and product renderings, features and performance charts. Louvers include thin line, drainable, sight proof, adjustable, combination, acoustical and fabricated models, while equipment screens, sunshades and egg crate grilles are also listed. (by Greenheck ). Air-cooled chiller minimizes background noise with a screw compressor that is vibration-free, with sound-pressure levels at 30 ft.
By Ken Seaton, P.E.PrincipalSeaton & Associates Chicago Editor’s Note: This is the second installment in a regular monthly column that will cover significant new issues raised by the 2005 Edition of the National Electrical Code. Most electrical engineers are familiar with the many technical words and phrases used in the NEC. Understanding the meanings of words such as ground, grounded, grounding and neutral is essential. But if you do not clearly understand the terms used in a code book, you will have difficulty understanding the rules themselves.
Visit www.csemag.com for industry news and featuresOctober 25, 2004 Special Advertising SectionDear Reader,Here is the next edition of Consulting-Specifying Engineer's product and system solutions showcase. Browse Products: Tjernlund Products | Hartzell Fans | Cooper B-Line | Steril-Aire New Auto-Draft CPC-3 Controller regulates fan speed,resulting in perfect draft & combustion air for true energy savings. Variable & fixed speed models reduce vent diam.
All U.S. consulting and specifying engineers realize their trade is regulated by codes and standards. Mechanical engineers turn to the International Mechanical Code, along with referenced standards like those developed by the American Society of Heating, Refrigerating and Air-Conditioning Engineers. Fire protection and electrical engineers have the building codes and standards from the National...
Distribution equipment may be divided into several categories: distribution panels, switchboards and switchgear. These categories, in turn, can be divided into units for interior or exterior installations. Distribution panels are typically surface wall-mounted panels that are about 12 in. × 36 in.
A new solid-state current limiter (SSCL), designed to restrict potential fault current caused by local generating equipment from entering a utility distribution system, is heading for field testing later this year, according to developers at the Electric Power Research Institute. EPRI researchers hope the SSCL will help maintain distribution system reliability, as independent generating facilit...
In its simplest sense, commissioning verifies that systems operate in a manner consistent with construction or procurement documents. This includes identifying and labeling devices, cabling and equipment; cleaning; preparing O&M documentation; testing and adjusting; and training personnel. Labeling components Labeling of cables is an oftentimes neglected but vital part of security system co...
Prayers for Paul I read CSE on a regular basis and almost always start with the Editor's Viewpoint. I've been a registered fire-protection engineer for 43 years and have enjoyed CSE's frequent inclusion of related articles. The August issue noted the death of Dave Adams and the diagnosis of terminal cancer for Paul Beck.
New York utility Niagara Mohawk has begun installing a 350-meter high-temperature superconducting (HTS) cable between two of its Albany, N.Y., substations in a four-year test of the technology and its related cooling equipment. Gov. George Pataki participated in the groundbreaking ceremonies, as part of his effort to build his state's reputation as an incubator of advanced energy technology.
Designers and contractors planning facilities that incorporate radio-frequency identification (RFID) technology may be hearing a lot more about fuel cells in the near future. However, the devices might not be used to power the facilities, but rather, as replacements for the batteries used by portable RFID readers.
For almost 50 years, fire-alarm system designers have used both photoelectric and ionization devices because each ensures reliable operation. Photoelectric detectors were preferred for smoldering fires because they could easily detect specific types of smoke, including burning plastics. Ionization detectors were used to sense clean-burning fires such as paper and wood.
Sustainable design is becoming a notable movement in the A/E community, as is the desire for LEED certification among more and more clients. Carter & Burgess had the good fortune to work with two such clients—Berkebile Nelson Immenschuh McDowell Architects (BNIM) and the University of Texas—to design the latter's School of Nursing and Student Community Center for its Health Scie...
At present, women are only about 12% of the engineering workforce, reports Newton, Mass.-based PSMJ Resources. But their numbers may soon be growing. This year, about one in five engineering graduates will be women. Last month the Senate decided against eliminating a decades-old tax incentive for renovating older buildings.
The David L. Lawrence Convention Center was conceived as a daylit space from the beginning. Rafael Viñoly Architects created a grand scheme for the building, and Burt Hill Kosar Rittelmann developed the daylighting concept using basic rules of thumb. These preliminary concepts were tested and refined based on diffuse light analysis by Vladimir Bazjanac of Lawrence Berkeley National Laborat...
It probably won't be replacing dams and turbines anytime soon, but a new approach to generating electricity with water has caught the attention of some Canadian scientists. Instead of using the force of water flow to mechanically drive turbine blades attached to a generator, these researchers have tapped the source—the water itself—for power.
Surge Protection Schemes Not Just for TVSS In the Specifier's Notebook "Knocking Out Power Surges," (CSE 12/03 p. 62), by Alan Mayzenberg, the author notes, "The first line of protection is a surge diversion device at the main service disconnect. Voltage, at this point, can be below or above 1,000 volts.
A regional medical center in North Carolina was suffering from its own version of skyrocketing medical costs last year, brought on by poor power quality. Voltage sags were causing major damage to the exciter element in the facility's magnetic resonance imaging machine, and repairs were running $250,000 each time the element needed fixing.
For its fifth annual event, the VDV Expo has become more than just a showcase of the latest voice-data-video technology. This year's show in Las Vegas from March 10 through 12 has been expanded to include integrated building systems. Of course, it only makes sense, because it's all interconnected. For information about the VDV/IBS Expo, go to www.
The ASHRAE Winter Meeting produced a number of excellent sessions. Following is a recap. Wireless technology, as presented in "State of the Art Issues for DDC Systems," is about to change the course of how control sensors are installed in a building, according to Kris Pister of Dust, Inc., Berkeley, Calif.
Utah may soon be home to the nation's largest ultrahigh-speed digital network. The $470 million project, called Utopia (Utah Telecommunication Open Infrastructure Agency), would link Salt Lake City and 17 other Utah cities over the Internet via a fiber-optic network capable of transmitting voice, data and video at speeds several times faster than that of current copper, cable and satellite syst...
Renewable energy sources seem to have gained some, well, energy from this summer's power problems, if this year's PowerGen educational sessions were any indication. Programs at the recent conference in Las Vegas kicked off with a discussion of the role of renewables in the U.S. generation mix. There were other notable topics, to be sure, with gas-turbine technology topping the list.
Analysts and investors are targeting advanced-technology fuel-cell and uninterruptible power supply (UPS) manufacturers as potential winners in the speculative marketplace. By late September, prices for stock issued by a number of these manufactured had doubled or tripled over their levels of the previous six months.
Power surges cause hundreds of millions of dollars in damage each year, but with the right protection, most of this damage can be avoided. This starts with proper design and specification of surge protecting devices, as well as adherence to the appropriate codes and standards. The first line of protection is a surge diversion device at the main service disconnect.
Natural-gas-fueled genset is a 1,200-rpm 60-Hz package that delivers 1.6 MW from an electronically controlled, 20-cylinder advanced lean-burn gas engine, coupled with a six-pole synchronous generator. Mechanical efficiency is rated at 43.5%, with fuel consumption at 6,069 BTU/bhp-hr, and NOx emissions at 1.
Few services are as vital to a community as water treatment, and few treatment plants see the workloads that Denver's Metro Wastewater Reclamation District faces. As the largest water treatment plant between the Mississippi River and the West Coast, the facility serves a 380-sq.-mile area and handles some 150 million gallons of water per day.
Some seminars and resources on power protection
A program is underway to develop a device allowing universal connections between distributed-generation resources and utility grids. The proposed device would eliminate one of the major hurdles to broader adoption of distributed generation, developers say. The Electric Power Research Institute (EPRI), the research arm of the electric-utility industry, is leading the effort to design the new "Gr...
Before processed food even reaches the grocer's freezer cases or is served up at a restaurant, it experiences an extended storage life. And to adequately refrigerate product throughout its storage calls for lots of power—reliable power. Taking a close look at a food-processing or storage facility's total critical power system—from utility entrance to shipping dock—offers up ma...
As the name implies, One Call Internet, Indianapolis, is an Internet service provider (ISP) whose main function is to provide high-end Internet backbone and colocation/disaster recovery services for businesses in the Midwest. One Call takes its business a step further—with dual redundant power backup systems.
Notification speaker offers field selectable audio power taps from 1/16 to 4 watts, with a frequency range from 400 Hz to 4,000 Hz. Units feature an integrated multi-candela strobe light on a metal grille. The 1/16 wattage produces a sound level of 77.1 dB and is designed to use half the power of conventional speakers.
Demand for electromagnetic and radio-frequency interference (EMI/RFI) shielding options in the United States was estimated at $523 million in 2002 and is expected to reach almost $630 million by 2008, according to a soon-to-be-released report, RGB-066Y EMI: Materials and Technologies, from Business Communications Company, Inc.
Burlingame, Calif.'s 28,000 residents are threatening legal action against Pacific Gas and Electric Co. (PG&E) officials, following a year filled with power outages. After 33 outages, some lasting up to four days, residents of the San Francisco suburb are threatening to file a formal complaint with the California Public Utilities Commission.
For oil companies, the exploration for reliable information technology (IT) can be as challenging as the search for oil. Houston-based Titanis Corporation specializes in supplying financial software and telephony products to oil, gas and related industries. Titanis provides its customers with software applications, as well as network design to procurement to recruiting.
Just-in-time manufacturing has moved from management break-through to standard operating procedure in the automotive industry over the last 20 years. And Android Industries has become a Tier 1 supplier to General Motors as a result of its ability to keep the manufacturer's Flint, Mich., truck-assembly plant supplied with just the right parts, when they're needed.
American Power Conversion (APC) has announced a worldwide voluntary recall of two models of its “Back-UPS CS” line of uninterruptible power-supply (UPS) systems. The manufacturer said that units can overheat, posing potential fire hazards.
Surge suppressor sales in North America and Europe will reach $1.5 billion by 2006, driven by increased awareness of power-quality issues and greater product functionality, say researchers at Natick, Mass.-based Venture Development Corporation. In a recently-published report, "2002 Power Protection Market Intelligence Program," they conclude that because consumers are relying more on power-sens...
It isn't easy designing an effective grounding system. After all, grounding problems are often the result of very unpredictable events, and so, many power quality issues are rooted in inferior grounding practices. On October 9, a one-day symposium, hosted by Post Glover, Inc., Erlanger, Ky., offered a number of expert opinions on grounding systems both for industrial and commercial facilities.
Members of three major code-making organizations—Building Officials and Code Administrators (BOCA), the International Conference of Building Officials (ICBO) and the Southern Building Code Congress International (SBCCI)—took the historic step in October of officially consolidating into a single organization: the International Code Council (ICC).
New research on the grounding properties of various soil types promises to result in more effective modeling of potential lightning-related transmission-line damage, as well as produce guidelines for better transmission-line design. The study was intended to improve the TFlash software—developed by the Electric Power Research Institute (EPRI)—by providing more accurate algorithms fo...
It's a thin line between love and hate. So goes an old soul tune that conveys the ups and downs of a couple's relationship. The same could be said about engineers and product manufacturers: "Engineers are lazy;" "Sales people are too pushy." Other times it's a trusted partnership, with engineers relying heavily on the manufacturer for technical assistance.
The market for intrinsically safe equipment is projected to grow over the next five years—in some regions more than others— reports a recent market study.
For the past four decades, commercial buildings have been constructed with little or no sensitivity to their environment. And, to a certain extent, engineers have been the enablers of this phenomenon, because modern architecture's dysfunctions are facilitated by the lighting and HVAC systems that engineers design.
Adoption of fuel-cell technology is moving forward with the planned installation of seven units—the world's largest application to date—at a call-routing center in Long Island, New York. The call-center installation involves seven 200-kW units, which will provide primary power for a 332,000-sq.
Soon after the U.S. Senate passed the Energy Policy Act of 2002, the U.S. Department of Energy (DOE) released its own assessment and recommendations regarding the U.S. electricity-transmission system. The report, the "National Transmission Grid Study," also supports mandatory federal reliability standards, along with new investment in transmission facilities and increased reliance on distribute...
Electric-power reliability is a key ingredient in the Energy Policy Act of 2002, recently passed by the U.S. Senate. The Senate version of this legislation, which was passed by the House of Representatives in 2001, calls for the establishment of a new North American reliability organization to ensure compliance with a standard set of reliability rules.
In recent years, mineral insulated (MI) cable has become popular with the engineering and property management community in the tri-state area surrounding New York City. The reasons are multiple: the advent of stricter fire codes now requires certain feeders to be fire-rated; MI cable yields space-saving characteristics compared to traditional wiring methods; and engineers now have more choices...
The world market for structured cabling—local area network copper cable and multimode fiber cable—is anticipated to grow by 4.4% per year for the next four years, according a recent report released by the U.K.-based market research firm, BSRIA.
ASHRAE's 1999 energy conservation standard has been established by the U.S. Dept. of Energy as the commercial building reference standard for state building energy codes. Under the new federal Energy Conservation and Production Act, all U.S. states will be required to have energy codes that are at least as stringent as ANSI/ASHRAE/IESNA Standard 90.
A recent report, commissioned by an association of manufacturers who rely on hydrofluorocarbons (HFCs), provides a comparative analysis of HFCs and alternative fluids used for different applications including refrigeration, air-conditioning and fire protection.
A Final Word on Cable Combustibility In response to the letter written by Dean K. Wilson (CSE 03/02 p. 9), regarding his article "Circuit Integrity Cable Re-Examined" (CSE 09/01 p. 55), as pointed out in his letter, indeed, circuit integrity fire-alarm cable was not shown in the Pyrotenax video, and we agree that the effect is less pronounced in this type of cable, simply because of the amount ...
Staco Energy Products, Dayton, Ohio, is introducing a single-phase on-line UPS product that offers sophisticated diagnostics and advanced circuitry. The double-conversion design completely isolates and conditions the power coming into the unit before it is distributed to the protected equipment. Available in sizes from 700 VA to 3,000 VA, the Unistar Sx* is also capable of remote monitoring a...
American Power Conversion, West Kingston, R.I., has announced PowerStruXure, a patent-pending, systematic approach to building data-center infrastructure that allows for a "pay-as-you-grow" scenario. The new approach is intended to simplify the design, building and management of data center infrastructure, allowing capacity to be purchased and installed when needed via simple "building blocks.
The Kyoto Protocol, which the Bush Administration has refused to agree to, calls for all major industrial nations to reduce greenhouse gas emissions by 5.2% from 2008 to 2012, based upon 1990 levels. As an alternative, Bush and the U.S. Environmental Protection Agency (EPA) have created what they call the "Climate Partners" program.
Two special system engineers analyze the current state of facility communication network needs and cabling.
Last month, the executive committee of the Construction Specifications Institute (CSI) approved a concept for revising its MasterFormat, signaling a resolution to what has been deemed a complicated—and sometimes contentious—process...
CSE's March 2002 issue featured an article on the growing importance of water conservation and detailed some projects that have conserved water through a variety of methods, including the use of green roofs. This "Deep Link" goes on to explain some further advantages of green roofs.
Only 4% of the 296,000 megawatts of new power generation capacity needed by 2015 will be fired by coal, according to a research study by RDI Consulting, Munhall, Pa.. Currently, 52% of U.S. electric output comes from coal. By 2015, however, natural gas will cover 279,000 MW of power generation, while renewable energy such as solar, hydro and wind will account for 5,000 MW.
Editor's Note: In the past, participation in CSE's monthly M/E Roundtable has generally been limited to consulting engineers. This month, CSE begins a new trend, calling on product manufacturers—in this case, BAS developers—to give their insight on technical issues relating to their products.
CSE's February Roundtable focused on specifying boilers, and this "Deep Link" from Lochinvar Corporation offers insight on their maintenance.
Economists are predicting an overall rise in the revenues generated by the uninterruptible power supplies market over the next five years. However, this growth will not start until 2003, once the market recovers from a dip in revenues this year, according to analysts at Frost & Sullivan's San Jose, Calif. office.
Formed in order to serve as a resource to the building industry and to combat misinformation that has been published since Sept. 11, ASHRAE's Presidential Study Group on Health and Safety Under Extraordinary Incidents presented its preliminary report to a crowded audience at the Winter Meeting.
Central plant efficiency means matching up the right equipment with controls to cost-effectively meet loads
In order to upgrade its design-build delivery services, the Boston office of Carter & Burgess has paired with Konover Construction Corporation (KCC)
Florida Power now offers commercial and industrial users a "premier power service" that provides "custom-tailored, on-site power generation and protection solutions," the utility claims. The utility works with its customers under this program to identify needed levels of power protection, and then designs, installs, manages and maintains the system for the customers.
DTE, the Detroit-based utility, is working with Coactive Networks to "bring distributed generation solutions to consumers and businesses worldwide." Coactive's technology will be used to centrally monitor DG equipment. GPU, a New Jersey-based utility, has signed a distribution deal with Ballard Power Systems, allowing GPU to market fuel cells to residential and business customers in the Nort...
During the past summer, the Electric Power Research Institute suggested solutions to the 11-state Western power grid's next crisis: To download the plan in its entirety from the Web, including a total of 18 specific recommendations for action, go to: www.epri.com From Pure Power, Winter 2001.
Migrating building automation systems to wireless offers many benefits
Editor's Note: For more about mergers and acquisitions, see "Good Catch," p. 30.Whether to diversify their areas of practice or to expand into new geographic markets, engineering firms are acquiring other design firms with increasing frequency.Buyers frequently look to acquire an established firm to avoid the time and expense of setting up a new office.
Despite a worldwide economic slowdown, the structured cable market has posted 10% annual growth this year, according to a report released in the late summer by BSRIA, a British market research firm.
Judd Wire Inc., Turner Falls, Mass., made its mark on the wire-and-cable industry by setting the standard for electron beam irradiation of wire. Now, it is among the first to retrofit all its production lines—and build new ones—using AC motors and motor-drive technology. The ultimate goal for Judd's manufacturing facility in San Marcos, Calif.
An astounding market projection for fuel cells—$8 billion in 2005 and reaching $32 billion by 2010—from Frost & Sullivan, San Antonio, Texas, pales the figures reported above. In Fuel Cell Vehicles and Stationary and Portable Fuel Cells, researchers expect to see the demand for reliable power spur the market for fuel cells, especially in areas of residential or industr...
Better think outside the grid by dusting off Y2K contingency plans and investing in backup systems that will cover you in case someone pulls the plug on your power supply," advised a recent issue of CIO Magazine. Other interesting information from the report included:From Pure Power, Fall 2001.
Researchers at Business Communications Co. (www.bccresearch.com) have projected future markets for fuel cells and uninterruptible power systems (UPS). The fuel cell market alone is projected to experience phenomenal growth: Fuel cells. Estimated at $218 million for last year, the fuel cell market is forecasted to increase to $2.
The 2002 edition of the National Electrical Code (NEC) has just recently been issued by the Standards Council of the National Fire Protection Association...
At $622.3 million in 2000, global market consumption for electronic and fiber-optic connectors used in local area networks (LAN) and private data networks is projected to grow 13.3 percent per year, reaching $1.16 billion by 2005.
Variable-flow solutions for chilled-water systems address diversity in building loads
A Tutorial on Reactors I would like to compliment Eric Wolf on his informative article, "Drive to Succeed" (April 2001, p. 36). As a former mechanical design engineer for a consulting engineering company, I can confess to having specified variable-frequency drives on mechanical equipment without fully understanding the workings of these devices.
The Facility Solutions Alliance (FSA) combines Albercorp, Cummins Onan, MGE UPS Systems, EFI, Square D and Stulz in a partnership to "support mission-critical networks and facility operations with power, environmental control and monitoring systems." According to officials of the companies, the FSA is the first such alliance of its kind.
Officials at Sure Power Corp., Danbury, Conn., announced that they had taken "a ground-breaking step" by applying redundant array of independent devices (RAID) technology to generate electricity without a single point of failure.Sure Power claims to use turbines, fuel cells and gas reciprocating engines in site-specific power-generation facilities for large-scale data centers and Web ...
Researchers at Allied Business Intelligence (ABI), Oyster Bay, N.Y., claim that the overall capacity of fuel-cell energy generation will increase by a factor of 250 in the coming decade. "The pressure on the fuel cell companies will be greater than ever before, due to Wall Street's attention to fuel cells and the fuel cell industry's ability to deliver stationary fuel cell units on time,"...
Showing impressive growth, U.S. factory telecommunication equipment sales jumped more than 20 percent from 1999 to 2000, finishing at $100.3 billion in 2000, according to a recent market report released by the Telecommunications Industry Association (TIA), Arlington, Va.
Even a though significant reduction in carbon emissions on the part of utilities is deemed feasible, it is going to require "flexibility mechanisms" such as emissions trading and offsets in order to keep electricity affordable, concludes a recent study conducted by ICF Consulting, a Fairfax, Va.-based firm specializing in global resource management.
The average annual growth rate for cable consumption will increase 10 percent over the next five years, reaching $39.4 billion by 2005, according to projections made by ElectroniCast Corporation, a telecommunications market research firm based in San Mateo, Calif.
Lighting designers and engineers take advantage of a number of techniques and tricks to make illumination design work...
IEEE Std. 493-1997, IEEE Recommended Practice for Design of Industrial and Commercial Power SystemsIEEE Std. 141-1993, IEEE Recommended Practice for Electric Power Distribution for Industrial Plants (ANSI)
It is quite unsettling to read the theme implicit in "Where There's Fire, There's Smoke," (January, 2001). That "Health-care facilities aren't typically evacuated in the event of a fire ..." might be true (evidence would be welcomed), [but] mechanical smoke control is not the prime means of reducing the level of risk of death or injury as low as reasonably practicable (ALARP).
These suggestions are some of the most effective actions that a design professional can take to design a quality pneumatic-air system-and to ensure that it is maintained correctly: Maintain a low dew point, but not lower than what is needed. Filter the air of harmful particulates. Avoid bypasses to filters and dryers. Get as much of the oil out as possible.
As part of an initiative to conduct precompetitive, industry-wide research, the HVAC&R Research for the 21st Century program is soliciting bids for two new research projects: High-condensing temperature heat transfer performance of low critical temperature refrigerants.Automated integration of real-time information into building management systems.
Power outages caused by thunderstorms, blackouts and brownouts have always been a cause of financial losses for businesses. The impact of utility deregulation can also be high-as the California energy crisis attests.
The new 85,000-square-foot Oak Point recreation center in Plano proves the old adage that everything is bigger in Texas. However, thanks to new technology and natatorium design concepts, designers managed to make the pool equipment room for the complex's 50-meter indoor pool significantly smaller than a typical natatorium.
As the largest noise, vibration and harshness lab in North America, the design of General Motor's 347,000-square-foot Noise and Vibration Analysis Laboratory in Milford, Mich., involved comprehensive hazardous area design by engineers from HarleyEllis, Southfield, Mich.
The economic feasibility of converting a substation from distribution to transmission service can be determined from the following relationship:NAS = SAV + DEREG - CONV - OM, where:NAS = Net annual savings.SAV = Annual savings due to switching from the distribution tariff to the transmission tariff.DEREG = Estimated annual savings due to buying power in a deregulated environment.
As if architects and engineers did not have enough of their own problems in the form of liability suits, competition from contractors and the growth of design/build, the design professionals are now "at war" with other sectors of their own community.A few years ago the battleground involved architects and engineers, and focused on which profession had the legal right to design buildings.
Optical-fiber network saddles for use in routing fiber-optic cable are designed with rounded edges to provide a smooth surface between the mount and the cable. This helps prevent potential stress on the cable and damage to insulation resulting from snagging or abrasion. Saddles are available in single-capacity versions for a maximum bundle size of 1.
AC adjustable-frequency drives save up to 40 percent of fan-motor energy compared to standard fixed-airflow systems. In cooling-tower applications, drives reduce fan noise and eliminate fan cycling as well as the need for output-water throttling valves, while maintaining water at design temperatures.
Radiant floor-heating pump improves control and energy use in primary- and secondary-piping configurations.
Transformer protector is designed exclusively for primary-side applications on distribution substation transformers rated up to 60 MVA at138 kV. Electrically linked, manually reset pole-units provide less than 1/4-cycle, three-phase tripping simultaneity. The device is compatible with any relay-tripping system.