Is there much copper in the old medical equipment?

In fact, the sum of the power of all household appliances can be calculated, and whether the incoming wire diameter can bear it without overload. If the decorator is very familiar with electrical appliances, he can certainly be trusted. If not, it's just that he has done so well for many other people. There is no problem for the time being and it needs careful consideration. After all, there are not a few old wires that cause fires. If it is really necessary to install an overloaded air switch, it should be tripped in time.