Design of Low Voltage Switchgear

1. The rated voltage of the electrical appliance should be compatible with the nominal voltage of the circuit;

2. The rated current of the electrical appliance should not be less than the calculated current of the circuit;

3. The rated frequency of the electrical appliance should be compatible with the frequency of the circuit;

Fourth, electrical appliances should adapt to the environmental conditions of the place;

5. Electrical appliances should meet the requirements of dynamic stability and thermal stability under short-circuit conditions. Electrical appliances used to disconnect short-circuit current should meet the making and breaking capacity under short-circuit conditions.