Right-N® is the computerized version of the just released Air Conditioning Contractors of America (ACCA) Manual N, 5th Edition, light commercial load calculation method. Right-N can be used to rapidly ...

Note: This article is based on the 2002 NEC. Even if you work with stamped drawings, you'll eventually need to do commercial load calculations in the field or on a licensing exam. The National ...

Based on the 2020 National Electrical Code. Part 1 of this two-part series taught you how to calculate branch-circuit loads. Now let's review how to perform feeder and service load calculations.