General requirements for installation and commissioning of low-voltage switchgear
4. General requirements
4.1 The assembly of the low-voltage switchgear must meet the requirements of the main wiring diagram.
table1
Maximum value of rated working voltage to ground,V | Rated impulse withstand voltage,kV | Electrical clearance,mm | Creepage distance,mm |
300 | 4 | 3 | 6.3 |
600 | 6 | 5.5 | 8.0 |
1000 | 8 | 8 | 12.5 |
5.2 Check whether the electrical components obtained meet the requirements of the product circuit diagram (or wiring diagram), and whether the performance of the electrical components and their accessories meet the requirements.
5.3 Each electrical component should have a factory certificate and instructions for use, keep it in good condition, and put it in a plastic bag together with technical information, so that it can be sent to the orderer with the equipment.