Plug use and common faults

Add Time: 2019-9-16    Views: 3069

The connector must be used with the connector. It is not allowed to insert the bare wire into the socket, or it can be used on the knife switch instead of the pin to avoid fire and electric shock.
The construction of the plug (plug and socket) should be suitable for the surrounding environment and working conditions. The rated voltage and rated current must be marked on both the plug and the socket, and they must be used in combination.
When the current of the connected appliance does not exceed 25 amps and the voltage does not exceed 250 volts, a common type of latching device should be used. The plug housing of this kind of plug has three kinds of porcelain, metal and plastic pressed products. Porcelain shells are used only in non-hazardous locations due to their insufficient mechanical strength. The socket used in the production plant is made of refractory material with mechanical strength, and it is not allowed to use an ordinary porcelain socket which is not covered. The metal case pin is used only in very humid places or where it can be mechanically damaged when using a plastic case. The socket of the metal casing shall be grounded.
The rated voltage and rated current shall be indicated on the socket and plug of the latch.


Latch use


The latch consists of a socket and a plug. Pay attention to the following when using:
(1) The socket should not be installed in a place with high temperature and humidity, but should be installed in a dry and clean place; the height of the mounted socket should not be less than 1.8 meters from the ground, and the height of the concealed and industrial socket should not be less than 30 cm from the ground.
(2) The rated current of the bolt should be greater than the load current; the sockets of different voltages should have obvious differences, so that they cannot be used interchangeably.
(3) For sockets for portable or mobile electrical equipment, the three-hole socket shall be repelled correspondingly, and the four-hole socket shall be used correspondingly. The grounding hole shall be firmly connected to the grounding wire or the neutral wire.
(4) The socket of the children's activity place shall be a safety socket; if an ordinary socket is used, the installation height shall not be less than 1.8 meters.
(5) It is not allowed to use two or more electrical appliances together with one plug or two pairs of plugs to be inserted into one socket to prevent short circuit or burned electrical accidents.
(6) It is forbidden to insert the wire ends of the two power leads of the appliance directly into the socket of the socket to avoid short circuit or electric shock.
(7) After the bolt is damaged, it must be replaced in time and cannot be used.
(8) Always check if the plug is intact and the end of the plug or socket terminal is loose.
(9) Insert the plug into the socket to be inserted into the socket, and do not expose it to avoid electric shock.


Common malfunctions
(1) Fault phenomenon: poor contact
Possible causes: 1 plug crimping screw loose or solder joint solder joint; 2 plug root power lead internal break (but sometimes contact); 3 socket wire connection screw loose or wire corrosion (especially aluminum wire is more likely to occur); 4 socket socket Too loose; 4 sockets are of poor quality.
Maintenance method: 1 tighten the screw or re-weld; 2 cut the wire and reconnect; 3 clean and tighten the screw; 4 power off, open the 盏, use the needle-nosed pliers to clamp the front piece; 5 replace the socket.
(2) Fault phenomenon: the circuit is unreachable
Possible causes: 1 socket socket is too loose, the plug is not touched; 2 socket wire connection screw is dropped; 3 power lead is broken (especially at the end); 4 plug crimping screw is loose or the solder joint is disconnected, the wire is affected The force causes the thread to fall off.
Maintenance method: 1 power failure. Open the 盏, use a needle-nosed pliers to clamp the copper piece; 2 tighten the screw; 3 cut the wire and reconnect it; 4 connect the wire, press the screw or re-weld, press the platen.
(3) Fault phenomenon: short circuit
Possible causes: 1 wire lead is too long or burr in the socket or plug; 2 wire head is disconnected from the socket or plug crimping screw; 3 sockets are too close to each other, bumping; 4 plug inner wiring screws loose, mutual Touch the line.
Maintenance method: 1 re-handle the connector; 2 reconnect the connector 3 power failure, open the cover repair; 4 open the repair.
(4) Fault phenomenon: bakelite burning
Possible causes: 1 short circuit; 2 long-term overload.
Maintenance method: 1 Replace and eliminate the short circuit point; 2 Control the load or replace it with a large capacity pin.
(5) Fault phenomenon: leakage
Possible causes: 1 damp or water shower; 2 exposed wires at the end of the plug; 3 broken; 4 protective grounding (zero) wiring error.
Maintenance method: 1 should be installed in a dry place, shelter from the rain, often clean; 2 reconnect; 3 replacement; 4 correct according to the correct method.
(6) Fault phenomenon: damage
Possible causes: 1 damage to the rubber cover due to impact from external force; 2 burnout of copper or terminal due to short circuit; 3 pin used for aging.
Maintenance method: 1 replace the rubber cover; 2 replace the socket copper, terminal or the whole replacement;