In contrast to the corresponding national and international standards, measure the outer diameter of the wire and cable and the inner diameter of the core. If the measured value obviously exceeds the allowable error, it is basically a poor quality power cable wire.
Power Cord Wires are one of the important products related to the national economy and people’s livelihood. The use of inferior Power Cord Wires can cause fire and electric shock accidents, especially during house decoration. The cables and wires are often buried in sheds, walls, underground and other environments with poor heat dissipation.
Everyone knows that water in the cable is a very serious problem. Sometimes you think that you have done a good waterproofing measure, but the cable is still getting water. So how does the cable get water? Let me introduce to you the causes and countermeasures of water ingress in cables.
We often see that in the three-core plug wire in the power cord, the colors of the three wires are different. What is the function of the three wires? Is the American standard line the same as the national standard line?
