BASIC NEC CODE RULES AND DESIGN PRACTICE

Minimum size service that should be installed is 100 A, 20 circuit for very small buildings, comfort stations 200 A or 225 Amp, 40 circuit 120/240V, 1 phase for all others. This may be too small for actual load, must do load calculations. Future Growth. Allow for future growth. The service entrance is the most expensive part of the electrical ... ................
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