Normal use of the wire is generally within 20 years. However, if it is not standardized during use, its life will be gradually reduced. Power cables will age after they have been used for a certain number of years. There are many reasons for the aging of conductors used in home furnishings in actual use. How to extend the service life of the wires?
The length of the service life of the wire depends on the quality of the wire and the environment in which overhead cable is installed and used. The wire is mainly insulated by the outer layer of sheath. After a long time, it will be corroded by corrosive gas, and the insulation performance will gradually decrease. It will gradually age and become hard, become brittle or fall off. At this time, it will not be insulated.
The outer insulating layer of household electric wires is mostly made of plastic and rubber, and it will age and lose its insulating effect when used for a long time. The loss of insulation performance of wires is very dangerous. If two wires touch together or the live wire touches something that is connected to the earth, the phenomenon of electricity running will occur, which will increase the temperature of the local wires and generate sparks. If there is flammable material near the wire, it is easy to catch fire and cause fire.
Therefore, we can pay attention to the following points in the process of use, which can also effectively extend the service life of the cable:
(1) The ABC wires should not be damp, heated, corroded or bruised.
(2) Pay attention to the inspection of the wire after a certain number of years. If any defect is found, it should be replaced in time.
(3) Do not overload the wire.
(4) Frequently check the use of electrical and wiring at home, and carry out maintenance and repairs in time.
(5) For the lines of the old buildings, if they are found to be flooded or wet, especially if the lines are out of repair for a long time and are aging, please immediately ask an electrician to repair them.
(6) For lines that are prone to flooding, electricians should be asked to relocate the lines and take overhead and moisture-proof measures.
In daily life, measures should be taken to slow down the aging of the circuit, and moisture-proof measures should be taken for exposed wires. Electrical appliances with different voltage requirements should choose wires of different sizes. If the power cord is found to be aged or damaged, replace it in time, and replace it with the specifications of the original power cord.