When we buy something, we want it to last longer. No one wants to buy something that doesn't last long. It's either broken here or there, but we can't just rely on its original life. We should also think of some ways to extend the life of the product. So the same is true for products like electric box. We should also find ways to extend its service life. So how can we extend their life span? In other words, how should we protect the electric box?

1. We should always check whether the circuit label of the electrical box is consistent with the drawing we designed in advance.

2. Let's check whether the wiring in the electrical box is good and whether the bolts of its terminals are loose.

3. We should regularly check whether there is dust inside the electric box, and how to clean it with a soft brush if there is any.

4. We should make sure that the wiring of the electrical box is smooth and there is no disorder between the wires.

5. We should check whether the relay, indicator light and fuse on the secondary circuit in the electrical box are damaged. If any, we should replace them in time.