1, national standard cable: according to the relevant cable standards issued by the state of the technology produced by the cable referred to as the international line. 2, line label cable:

Copper is a transition metal with an atomic number of 29, a density of 8.92g/cm3, and a melting point of 1083.4. It has good thermal and electrical conductivity, so it is widely used as a conductor.

The common faults of wire and cable are the basic knowledge familiar to cable factories. If we have these basic knowledge, we can avoid being caught off guard after a fault occurs and deal with the fault in time.

Wire and cable testing is an important part of the national standard wire and cable inside, the more advanced the quality inspection department of a wire and cable enterprise, the better the quality of the wire and cable produced by the enterprise, the more trustworthy. The following introduces several important indicators of wire and cable, which are key indicators to measure wire and cable.

What do you think a flame-retardant cable looks like? Does it not burn at all? This is not the case. Compared with ordinary cables, flame retardant cables have a relatively low combustion point and will not be out of control like ordinary cables.

Wire and cable in normal power operation, the cable itself will produce a certain amount of heat, which is a normal phenomenon. However, due to some other special reasons, such as cable quality is not up to standard, improper cable selection, installation and laying of non-standard cable overheating phenomenon, there are great hidden dangers.