Industry News

What are the precautions for using wiring terminals?


1. Tighten the wiring with appropriate force to prevent excessive force from slipping the bolts and nuts. If any bolts or 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, and then tighten or loosen it to prevent the screwdriver from slipping with the screw, causing damage to the screw and making it difficult to disassemble, especially for commonly used air switches in hanging boxes.

3. If you find bolts and nuts that are difficult to disassemble, do not act recklessly to prevent deformation and make disassembly more difficult. You should give them appropriate tapping, or add screw loosening agents, dilute hydrochloric acid, etc. before disassembling them later.

4. Do not use pliers to tighten or loosen bolts and nuts to prevent damage. When using a flexible wrench, adjust the opening to prevent damage and deformation of the bolts and nuts, making them difficult to disassemble.

5. The same wiring terminal allows up to two wires of the same type and specification to be connected.

6. Wiring terminals that are prone to loosening or poor contact must have their wire joints tightened in a "?" shape to increase the contact area and prevent loosening.

7. When connecting wire joints or wire noses 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 is smooth and free of oxidation. When connecting the wire nose or copper bar, 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 of a single flexible wire in half and then connect it to the lower opening of the air switch; Single core hard wire should be connected to the lower opening of the air switch in a "?" shape.

10. For the wiring of motors with a power output of 30KW and above, it is required that gaskets with poor conductivity, such as galvanized nuts, flat washers, spring washers, etc., are not allowed to cross between the motor output and the cable wires connecting the motor.

11. When using insulation tape to wrap cables or other equipment to protect insulation, the insulation layer should be wrapped from one end to the other in a compression ratio of 1/2, and at least back and forth.

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