Codes and Standards
Codes and Standards April 8, 2019

Understanding GFCI nuisances

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.

By Dean Chandler
Codes and Standards March 22, 2019

Top 5 Consulting-Specifying Engineer Articles, March 15-21

Mistakes to avoid with USP 797 and USP 800, AHUs in HVAC design, optimized heating with low-grade waste-heat recovery, data center AHU and conditioning design, and strategies to deal with turbulent times in the engineering industry were Consulting-Specifying Engineer's five most clicked articles from last week, March 15-21. Were you out last week? You can catch up here.

By McKenzie Burns
Electrical, Power
Electrical, Power April 12, 2019

Top 5 Consulting-Specifying Engineer Articles, April 5 to April 11

Understanding GFCI nuisances, AHU component makeup, AEC industry struggles, humidity in healthcare facilities, and NFPA 72-2019 updates were Consulting-Specifying Engineer's five most clicked articles from last week, April 5 to April 11. Were you out last week? You can catch up here.

By McKenzie Burns
Fire, Life Safety
Fire, Life Safety April 18, 2019

Sprinkler installations and obstructions

Sprinkler protection is an essential component of building fire and life safety. Sprinkler fire suppression systems are required to be installed with an understanding of the applicable standards and proper coordination among other building services throughout a project lifecycle.

By Roy Savio Fernandes, SFPE, Jensen Hughes, Dubai, United Arab Emirates
HVAC
HVAC April 23, 2019

Choosing and specifying VRF systems

In your client’s quest for energy efficiency, determining if a variable refrigerant flow system is right requires careful consideration.

By John Song, PE, McGuire Engineers, Chicago
Lighting
Lighting April 19, 2019

The pros and cons of networked wireless lighting

Wireless lighting controls offer many benefits. Lighting designers should be aware of these advantages, and take note of any drawbacks.

By Brienne Willcock, MIES, LC; and Karl Geil, IES, LC, Illuminart, a Division of Peter Basso Associates Inc., Troy, Mich.