Abstract: some users often encounter the rust of copper parts after using wiring terminals, which will seriously affect its effect. Then, what is the reason for the rust of copper parts of wiring terminals? Next, Ningbo Hongyi Xiaobian will check the reasons and solutions, hoping to help you!

Causes of rust on copper parts of wire terminals

1、 Problems of terminal material

The composition of the wiring terminal is relatively simple. It consists of a section of metal sheet (usually copper piece) sealed in insulating plastic. There are holes at both ends to insert wires, or there are screws for fastening / loosening.

In general, the aging speed of copper is relatively slow, and it is also coated with metal in the process of processing! If the copper parts are blackened, it may be a chemical reaction - oxidation. The reason is that the electroplating and protection links in the processing process are not done well; Secondly, there is no copper material (copper parts contain iron). If brown material is found in copper rust, it indicates that it contains iron impurities.

Solution: buy regular wiring terminals to prevent rusting of wiring terminals.

2、 External factors of terminal blocks

There are usually two reasons for this external situation. One is that the aging speed of copper parts is very fast at high or low temperature. The other is that excessive current will cause the wiring terminal to heat and scald, which will damage its insulating layer and protective layer, and also aggravate the aging speed of the terminal.

Solution: in case of bad environment, we can consider adding protective cover or plastic cover to the wiring terminal.

In case of excessive current, regular inspection is required here. In case of heating and scalding of the wiring terminal, the cause shall be eliminated in time, so as to prolong the service life of the wiring terminal.

We hope that the above reasons and solutions for the rusting of copper parts of wiring terminals can help you. If you need wiring terminals, you can contact the customer service personnel of Ningbo Hongyi website. It is a powerful wiring terminal manufacturer with high quality and low price!