Topics discussed in our “Code Forum” column involve complicated issues requiring extensive analysis. However, not every Code question warrants such in-depth treatment. Here are...
Sizing wye-delta conductors to a hermetic refrigerant compressor don't follow the same rules as regular motor conductors in similar use — an error in the NEC. We received an interesting...
Choose the best answer: 1. Suppose you install a 13.8kV, 480Y/277V transformer and secondary panel with a main disconnect on the top floor of a 5-story office building. Assume...
