Fortieth floor of the hotel

40-50 in the landlord's question should be kilowatts; Cable distribution If it is estimated that the three-phase power supply of each floor can be 4×25+ 1× 16, 4×50+ 1×35 cable can be led into the main switch in the main electrical box, and then a 25-square jumper is used to lead the pile from the air main switch to the distribution switches on all floors in the main box (both the air switch in the main box and the air main switch on all floors are placed). In addition, the shunt switch installed in the distribution box of each room follows the principle of no leakage protection and always open, and the shunt switch has leakage protection.