What kind of fire distribution box should be replaced?

The design of fire distribution box has two ways: surface and fluch. Users can choose different installation methods according to different needs. The fire power distribution box with long service life needs to be replaced, mainly for the safety of use!

Before replacing the fire distribution box, we need to do some testing work to check whether the insulation performance of the fire distribution box is good. We can use the electric pen to test it. If there is any abnormality, we can deal with it first. If we can't deal with it, then the fire distribution box needs to be replaced. In addition, we also need to check the fire distribution box Whether the zero line of the electric box and the ground connection of the protection function are in good condition. If there is any abnormality, it needs to be handled in time.