In general, what kind of reasons will cause the leakage of the distribution box shell. Let's take a look at it!

1. First of all, it may be that when installing the distribution box, it is not connected properly when grounding.

2. Secondly, it is possible that the wires inside the distribution box are aging.

3. It is also possible that the change of the surrounding environment may cause leakage of the enclosure of the distribution box.

The above three points belong to the situation that can cause electric leakage of distribution box shell.