The usb cable is mainly insulated by the outer covering. If it is not properly maintained, it will be corroded by corrosive gas for a long time, and the insulation performance will gradually decrease, and it will gradually age and become hard, brittle or fall off. A usb cable that loses its insulation performance is very dangerous. If two usb cables come into contact with each other or the live wire touches something that is connected to the earth, electricity will run out, which will increase the temperature of the local usb cable and cause sparks. Fire. Therefore, it is necessary to maintain the usb cable.
3. Don't overload the usb cable.
Four. Frequently check the use of electrical and wiring at home, and carry out maintenance and repair in time.
5. For the lines of old buildings, if they are found to be flooded or wet, especially if the lines are out of repair and aging, please immediately ask an electrician to repair them.
Six. For lines that are prone to flooding, electricians should be asked to relocate the lines and take overhead and moisture-proof measures.
Seven. If there is a power outage on rainy days, cut off the power immediately, ask an electrician to check the cause, and send someone to take care of it.
1. The usb cable should not be damp, heated, corroded or bruised.
2. The usb cable should be inspected after a certain number of years of use. If it is found to be defective, it should be replaced in time.