What are the factors that can damage electrical connectors?

I. What are the factors that can cause damage to electrical connectors? (1) Insufficient current carrying capacity of electrical connecting wires or clips to burn out or break. (2) Severe scattering, burnout or breakage of electrical connection wires. (3) Severe corrosion of the electrical connection resulting in insufficient cross sectional flow surface to burn or break. (4) Poor contact between electrical connection wire and wire clamp or poor contact between power wire clamp and contact wire resulting in burnout. (5) Insufficient contact current-carrying surface between wire clamp and threads, resulting in burnout. (6) Failure to find a loose clamping nut somewhere and deal with it in time, resulting in dislodging of the electrical connector. (7) No temperature change after installation of the electrical connector, or the reserved offset is too small. (8) After installation of the electrical connector, the variable temperature offset reservation is large, and the vertical electrical connection between the carrier cable and the contact wire is slack until it is slack to the lower part of the contact wire, which is damaged or cut off by the operating pantograph. The distance between the bottom ring of the vertical part and the contact line is too small and is damaged or cut by the pantograph. (9) Skewed installation of power clamps on contact wire, knocked out by pantograph, resulting in cutting accident. (10) The pantograph will continue to run to the mounting position of the electrical connector and the electrical connector will be damaged.

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