Precautions for wiring terminals

1. The tightening force of the wiring should be moderate to prevent the bolts and nuts from slipping due to excessive force. If the bolts and nuts are found to have slipped, they should be replaced in a timely manner. It is strictly prohibited to compromise the operation.
2. When tightening or loosening screws with a screwdriver, it is necessary to use force to push the screwdriver against the screw before tightening or loosening, to prevent the screwdriver from slipping and causing damage to the screw, which is difficult to disassemble and assemble, especially for commonly used air switches in the hanging box.
3. If you find bolts and nuts that are difficult to disassemble, do not act rashly to prevent deformation and make them more difficult to disassemble. Instead, give appropriate tapping or add screw loosening agents, dilute hydrochloric acid, etc. before disassembling.
4. Do not use pliers to tighten or loosen bolts and nuts to prevent damage. When using a open-end wrench, adjust the opening to prevent damage and deformation of the bolts and nuts, which may make them difficult to disassemble and assemble.
5. The same terminal block allows for a maximum of two wires of the same type and specification to be connected.
6. Wiring terminals that are prone to looseness or poor contact must have wire connectors fastened in a "?" shape to increase contact area and prevent loosening.
7. When wire joints or wire noses are connected to each other, it is strictly prohibited to install non copper or poorly conductive gaskets in the middle.
8. When connecting wire joints, it is required that the contact surface be smooth and free of oxidation. When connecting wire noses or copper bars, conductive paste can be applied after cleaning the contact surface, and then tightened.
9. When connecting temporary wires, it is required to fold the terminal head of a single flexible wire in half and then connect it to the lower opening of the circuit breaker; Single core hard wire should be connected to the lower port of the circuit breaker in a "?" shape.
10. For motor wiring of 30KW and above, it is required that gaskets with poor conductivity, such as galvanized nuts, flat washers, spring washers, etc., should not be crossed between the motor output and the cable wires connecting the motor.
11. When using insulation tape to wrap cables or other equipment that requires insulation protection, the insulation layer should be wrapped from one end to the other in a ratio of 1/2 compression, and at least one round trip should be made.