Optional elements of cable

Wire and plug in terminal block as the main carrier of power transmission, are widely used in electrical equipment, lighting, household appliances and other lines, its quality directly affects the quality of the project and the life and property safety of consumers. There are a lot of wire varieties on the market, want to use the appropriate wire according to the power load your.
On the market sell wire some cheap and some more expensive, some people often but to relatively cheap, cheap, wires, often have many did not reach the performance that he shows, there may bring many security hidden trouble to yourself. Production technology content of wire is not too high, the raw material is not much difference, if cheap too much, or cut corners, or the number of not giving enough. How to identify it. I give you several methods for easier identification:
1, to look at the packaging, GB wires tend to do relatively well, neat, hand up have a sense of quality.
2, to open the package to see the inside of the wire, the wire GB 1.5 - -6 square wire requirement is thick skinned (insulation thickness) is 0.7mm, too thick is non-standard, corresponding to his inner core is sure enough, line skin you can force pull, not easy to tear is general is the national standard of
3, with the fire, extinguished within 5S after leaving, have certain flame retardant function for GB line.
4, look at the inner core, the inner core material (copper) brightness higher copper is better, and photometric mini hdmi cable uniform, shiny, no sense of hierarchy. The national standard requirements within the core must use oxygen free copper. Non standard such as black rod copper, there may be hidden dangers of accidents.
5, the thickness of inner core countries have certain requirements, but not very strict. But not a lot of mistakes, only a very small a little bit error generally with the eyes of the.
6, length, no compulsory must play meters, but there are many manufacturers also played meters, not necessarily GB dozen meters, but the General GB generally not dozen meters. Non standard dozen meters that is only a kind of means.
7, the provisions of the state on the wires must play a certain identity, the maximum not more than 500mm have identified the same next play out, above the general product trademark, factory name, the implementation of standards