What is the total thermal power of your two boilers?
580+? 700? =? 1280kw
The electricity to be consumed is
? 1280? /? 95%? =? 1347.368kw
Then the working current of the boiler can be calculated according to this electric power value and the working voltage of the boiler.
Me? =? p? /? v?
The size of the incoming wire can be determined according to the current value. Please refer to the following specifications.
I don't know much about electric boilers The above calculation is only based on the experience of calculating other things at ordinary times. The landlord can refer to them.