First of all, the most common problem of poor contact of connectors is that there are many reasons, sometimes it is a small problem, so the first problem to be considered is the contact problem. It is necessary to check all connectors for electronic equipment failure. When the connection is tight, consider other problems. If there is no internal connection problem, simply dial The operation can be repaired very well. Other problems that need to be paid attention to in this item, that is, in the process of using the protection of the connector, it is also very important because of improper protection at ordinary times. Sometimes the contact is poor, and we cause local damage or corrosion of the connector. This kind of situation that causes poor contact is generally difficult to repair. It needs to replace the butt plug-in, which is not only a trouble, but also a resource And the waste of economic loss.  
Another common problem of connector is poor insulation, which mainly indicates the impact of external environment. The appearance of this situation usually shows unstable performance and leakage. What's more, it may lead to unsafe factors in use, which can be observed intuitively. However, such problems must stop working on the connector and be replaced directly. This is also the reason why the insulation is poor. If there is a problem with the unqualified insulation materials, it is wrong. We chose it. If there is a situation caused by the environmental impact, it is caused by our improper use. To protect the poor, especially the connector insulation damaged by corrosion in the humid environment makes us tangled. It must be avoided in one day to avoid special problems Do not leakage protection more unnecessary losses, and may involve people's safety.
There is a common problem that the connector is not fixed well in the use process, but it can be avoided by changing the installation mode, especially the rationality of tight combination of installation, installation and use, which will not occur.