Top five Consulting-Specifying Engineer stories, Jan. 20-26, 2014

Were you out last week? Miss something? Here are Consulting-Specifying Engineer's five most clicked articles from last week, Jan. 20-26, 2014, including articles about Lighting commissioning, selecting an air handling unit, transformers for commercial buildings, transfer switches, and arc flash hazards.
By Jessica DuBois-Maahs, Jordan Schultz January 27, 2014

1. Lighting commissioning: Highlighting code compliance

ASHRAE Standard 90.1 provides guidelines for designing lighting and lighting control systems. Commissioning these lighting systems is a key requirement of the 2010 edition of the code.

2. How to select an air handling unit

Air handling units come in all shapes and sizes. Learn to balance and prioritize all of the choices related to performance, efficiency, maintainability, and space constraints.

3. Selecting, sizing transformers for commercial buildings

While commercial building designs change, their electrical loads remain fundamentally unchanged. Properly sizing and selecting transformers ensures that these loads are accommodated.

4. Managing risks, benefits with closed transition transfer switches

Here are best practices for closed transition transfer switches when two live sources are connected together.

5. Mitigating arc flash hazards in medium-voltage switchgear

Engineers should be aware of design alternatives that can reduce arc flash hazards in medium-voltage systems.

The list was developed using CFE Media’s web analytics for stories viewed on, Jan. 20-26, 2014.

– Jessica Dubois-Maahs, Jordan Schultz, associate content managers, CFE Media, Consulting-Specifying Engineer.