Based on the 2020 National Electrical Code. Article 220 of the 2020 National Electrical Code (NEC) contains the requirements for calculating demand loads for branch circuits, feeders, and services.

Electrical professionals have long observed the “underloading” of customer-owned transformers, which, in part, is brought about by National Electrical Code (NEC) Chapter 2 design demand rules. This ...

Load calculations, and using software to do them, are key traits of the contractor of the future, according to a new ACCA ...

What do turf wars, battle lines, and tug of war have in common? They are all being mentioned by people involved in the creation of two rival commercial HVAC load calculation standards, one from the ...