Identify the quality of wire and cable good or bad method

A good wire and cable are strictly in accordance with international standards, for wire and cable wire diameter has strict requirements. How to discern the stand or fall of a cable, the following by the technician here to introduce you to the distinguish method of the cable.

1, reoccupy fingernails scraping and choke line, off, peel line. Refers to the use of fingernail scraping, choke insulating sheath, to underline, choke down a piece of general is a bad line.

2, insulated wire bent repeatedly three to four times is broken. Refers to the repeated bending of insulated wire, the inferior line insulation material is generally poor, bending after 3 ~ 4 times the insulating layer will break.

3, the insulation of the wire and cable outer generally will have a certain amount of resistance to fire, namely, we often say that the flame retardancy of industry. So we can use open flame lit the insulation of the wire and cable outer, if the lighting, can leave the fire combustion shoddy goods, conversely for GB classy article cable

4, the inner diameter and outer diameter of the wire and cable, and fixed weight per unit length, all have a strict standard, as well as the wire and cable of the cortical bag are very tight, we can according to the situation decide. Of course, this is allowed to have a certain error, an error less than 10% is a national standard cable.

Warm prompt: the above is the cable from amicable to introduce the distinguish method, hoping to bring nothing to help. ZMS cable is a professional wire and cable manufacturer, want to consult online can ask price, etc to communicate with our customer service personnel.