Hotel current calculation

1. Generally, the safety flux of copper wire is 5-8A per square millimeter, and that of aluminum wire is 3-5a;

2, 380V means that you have three-phase mains input, some are three-phase and some are single-phase. So this line calculates the average current of each phase:

Kitchen1:(76000w ÷ 3) ÷ 220v =115a, copper cable diameter115 ÷ 8 =14mm2.

Besides, the kitchen counts.