Pins are the parts that come into contact with plugs and sockets, often made of hard brass or cast copper. The selection of plugs should be based on the different environments in the house, using waterproof, dustproof, or explosion-proof plug equipment
Common faults
(1) Fault phenomenon: Poor contact
Possible causes: ① Loose plug crimping screws or solder joints; ② The power lead at the root of the plug is broken internally (but sometimes comes into contact); ③ Loose screws or wire corrosion at the connection of socket wires (especially aluminum wires are more likely to occur); ④ The socket socket is too loose; ④ Poor quality of sockets Maintenance method: ① Tighten the screws or re weld; ② Cut off this section of wire and reconnect it; ③ Clean and tighten the screws; ④ Cut off the power, open the lamp, and use pointed pliers to close the blade pliers; ⑤ Replace the socket
(2) Fault phenomenon: The circuit is not connected
Possible causes: ① The socket is too loose and the plug is not in contact; ② The screw at the connection of the socket wire falls off; ③ Open circuit in the power lead (especially at the end); ④ The crimping screw of the plug is loose or the solder joint is detached, causing the wire head to fall off under force Maintenance method: ① Power outage. Open the cup and use pointed nose pliers to close the copper plate; ② Tighten the screws; ③ Cut off this section of wire and reconnect it; ④ Connect the wire head, tighten the screws or re weld, and tighten the pressure plate
(3) Fault phenomenon: Short circuit
Possible causes: ① The wire head is exposed too long or has burrs in the socket or plug; ② The crimping screw for the wire head to detach from the socket or plug; ③ The two sockets of the socket are too close together and collide; ④ The wiring screws inside the plug are loose and touch each other's wires Maintenance method: ① Reprocess the connector; ② Reconnect the connector ③ Cut off the power and open the cover for repair; ④ Disassemble and repair
(4) Fault phenomenon: Bakelite burnt
Possible causes: ① Short circuit; ② Long term overload Maintenance method: ① Replace and eliminate short circuit points; ② Control the load or replace with a large capacity plug
(5) Fault phenomenon: Electric leakage
Possible causes: ① dampness or water immersion; ② There is a wire exposed at the end of the plug; ③ Damaged; ④ Protective grounding (zero connection) wiring error Maintenance method: ① It should be installed in a dry and rainproof place, and cleaned regularly; ② Reconnect; ③ Replace; ④ Correct according to the correct method
(6) Fault phenomenon: Damaged
Possible causes: ① Damaged rubber cover due to external force impact; ② Burn out of copper strips or terminals due to short circuits; ③ The plug has aged over time
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