When some kind of poor contact occurs in the cold-pressed terminal or the terminal, it is basically because a lot of pressure is applied to the external cable. The contact structure is good and the function is stable, but sometimes the structure is unreasonable and the mold is unstable.

The aging of the insulation performance of the cold-pressed terminal is inevitable, and the aging of the insulation performance of the wiring terminal will also occur due to the same reason, which will directly or affect the normal use, seriously damage the device, and cause faults such as poor contact.

Cold-pressed terminals with poor insulation cannot be used directly. Must check before use. Since there is insulation between the contact and the housing, if the structure of the two is not suitable, failure will occur in use.

Because there are many metal objects on the surface or inside of the insulator, when the harmful gas is diluted or directly adsorbed on the surface, the use of cold-pressed terminals and connecting terminals is very dangerous, and even causes damage to parts and poor contact.

If the solid in the cold-pressed terminal is poorly insulated, it has absolutely no insulation effect, but the protection of solid insulation has almost lost its effect. In addition, there are uses related to positioning and locking, but if it is still lacking, it will affect the normal use of the terminal.