Electrical Construction & Maintenance4d
Code Quiz of the Week: No. 475
Take this weekly quiz to test your knowledge of the 2023 National Electrical Code (NEC) requirements. The Code Quiz features ...
AV Network9d
Viewpoint: Make Room for 'Digital Electricity'
Class 4 systems have established a new era for Pro AV power distribution.
Daily Reporter14d
Major changes coming to National Electrical Code
As we transition into the new year, I am reminded of some changes proposed for the up-and-coming National Electrical Code.
Electrical Construction & Maintenance16d
NEC Requirements for AC and Refrigeration Equipment
Motors used for refrigeration equipment (including air conditioning systems) are hermetic. When we say “hermetic,” what do we ...