Wei Zi aluminium wire

The total * * * is 15 kw, plus lighting and electric fans (if your house area is 100 m2, it is about 3 kw).

So if there is no other equipment, the total power is about18kW, and the total current is 40A (three-phase electricity) or 100A (single-phase electricity) according to 20kw.

If wires are used, the total incoming wire of three-phase copper wire should be at least 10 square VV 5x 10 cable (not BV wire), and the aluminum wire should be one level larger, at least 16 square.

Single-phase power supply is unlikely. That's amazing.