How to limit the total power consumption of the room, 30KW

The electricity control scheme of the property is nothing more than limiting the current. When the current exceeds their set current of 30kw, your switch will trip. You can get electricity from the main distribution box. With their permission, I guess it's impossible to allow it ... Hehe, because with a large current, the main switch will trip, and all the residents may lose power. At the same time, pay attention to the maximum current of the switch above the switch you connect. The rated current of the switch you connect must be smaller than this, and it should be considered comprehensively according to the maximum current of your household electricity and the maximum current that the conductor can bear. The main line of the family is preferably 4 square millimeters. If the thread is too thin, it is recommended to change the thread.