If there is a leakage of electricity in the distribution box at home, you should not repair it at will, but should contact the electrical maintenance personnel nearby in the first time, let them deal with it as soon as possible. If the insulation material is aged, damaged or damaged, the insulation between the enclosure and the live part will. Leakage of distribution boxes is very common, especially in some distribution boxes which have been used for too long, and various components begin to aging. The following are the step- by-step handling methods: I. Cut off the power immediately. Before using a multimeter to detect leakage in the distribution cabinet or distribution box, we should first look at the distribution box to see what fault phenomenon, what are the obvious characteristics; secondly, from the surface to observe whether there is any intuitive point of failure, and. Today, the distribution box factory will take you to understand what causes the leakage of the distribution box shell under normal circumstances.