Due to frequent use or long service life, the contact copper sheet is deformed. If the copper sheet has not lost its elasticity, tools such as pliers can be used to shape the copper sheet to a suitable state. If the fixing screw is often loose during use, just re-imprison the fixing screw. If the contact copper sheet of the socket has lost its elasticity, it is not recommended to maintain it, and a new socket should be replaced to eliminate the hidden danger of short circuit.

General sockets may have poor contact due to their own quality problems or the influence of service life, and can be removed and eliminated according to specific failure reasons. General sockets may have poor contact due to their own quality problems or the influence of service life, and can be removed and eliminated according to specific failure reasons.