Can I replace an input device in an apartment building?
I live in a 12-apartment two driveway. Recently knocked out a communal machine. After checking, I saw that in the switchgear there are two unipolar 50A machines, to which the phase and zero are connected. The RES gave information that 30 kW of power was allocated to our house, which in my opinion does not correspond to what is currently limited. Question - if at 30 kW the current in the circuit increases to 136A, is it possible to replace this “VU” with a rating of 50A with a machine with a higher current rating or with a switch? So that residents can also increase their capacity in floorboards to the allowed "allocated"? I apologize for errors in terminology
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First, the circuit breaker must simultaneously break the phase and zero, it is forbidden to put two single-pole circuit breakers separately on the phase and zero. Secondly, a 50 A machine is really not able to pass 30 kW power. Perhaps they installed the machine at 50 A guided by the state of the wiring in the house - perhaps the power cable is not able to withstand more current, as well as the circuit in the main switchboard. In this case, to install the machine at a higher value, you will need to replace the input cable and other circuits in the main switchboard of your house.
Further, if we consider the issue of allocated power for each apartment, then in this case we need to look individually at each of the apartments - in each contract for electricity supply to the apartment, the amount of allocated power for the apartment should be indicated. If the house has 30 kW, the current is 136 A, then 11 A goes to the apartment. In practice, most likely, an automatic machine for 16 A was installed on each apartment with the expectation that usually all apartments will not include electrical appliances at full power at the same time. Usually they put it like that. If the automatic machines for apartments are at 16A, then most likely no one will give the green light to increasing the power limit for all apartments, since with an increase in the rating of automatic machines to 25 A, the input will often be knocked out.