Identify the quality of the power cord

1. The partial break of the copper wire inside the plug power cable is called a half-break. When the current flows through the half-break, the circuit suddenly becomes narrow, causing overload and high heat.

2. When using v, it should be noted that it cannot be bundled; because the plug power cord is bundled, the heat is difficult to dissipate, so the temperature rises and the plastic melts, causing the copper wire to short-circuit and catch fire.

3, plug the power cord to avoid placing the top of the stove, due to the high temperature of the furnace melting the plastic, causing the copper wire to short-circuit fire.

4. The plug power cord should be used under the allowable load capacity, and the connected flexible socket on the extension cord should use a product with a leakage protection device or an overload protection device.

5. The use of old, broken plug power cords will cause short circuits, leakage, or induction of electricity and other hazards, and should be updated immediately.

6. Is there any hot or odor in the plug power cord in use? This is an overload phenomenon, and should immediately stop using the high-powered electrical appliances and promptly notify the professional electrician for inspection.

7. A simple algorithm to confirm whether the plug power cable is overloaded: the sum of the power of the plug power cord / the power supply voltage, the result is to estimate the current, compared with the rated capacity of the socket, should be less than the rated capacity of the socket.

The power cord structure has three main parts.

The first part: is the outer sheath, the outer sheath is generally used for protection, and the structure inside the protection is not damaged, so that the power cord can be used normally and safely. The outer sheath is directly in contact with the outside world, so the outer sheath is generally res...