Purchase criteria:

  As the main carrier of power transmission, wire and cable are widely used in electrical equipment, lighting lines, household appliances, etc. There are many types of wires on the market, and you should use the right ones according to your load.

  The electric wire that sells on the market with different price. Some people often buy the cheap one, but it often has a lot of performance that does not reach what he explains, which can bring hidden troubles. The production technology content of electric wire is not too high, raw material also does not have much difference. If cheap too much, it is to cut corners, or quantity is not enough. Then how to identify？Here are some easy ways:

1. Look the packaging, the national standard of the wire is often done are better, neat, hand to get a sense of quality.

2. To open the package look at the wires inside, the national standard wire 1.5 - 6 square wire requirements is thick skin (insulation thickness) with 0.7mm.  Too thick is non-standard. And the corresponding to its core tis not enough. The skin you pull hard, what is not easy to torn is the general standard.

3. With a bit of fire, go out within 5s extinguished. There is a certain flame retardant function for the national standard line.

4. See the inner core, the core material (copper). The higher the brightness of copper, the better, and luminosity, shiny, there is no sense of hierarchy. GB requirements of the core must use oxygen-free copper. Non-standard black rod copper, there may be hidden accidents.

5. The thickness of the core countries have certain requirements, but not very strict. Not many mistakes, generally with the eyes can not see the error.

6. The length of the country is not mandatory to play meters, but there are many manufacturers also hit the meters. It is not necessarily a national standard, but the general national standard is not playing meters. Non-standard of playing that is only a means.

7. The state regulations must be marked with a certain line of wire, the maximum will not exceed 500mm will have the same next logo hit out. Above that have the trademark of the product commonly, manufacturer name, executive standard.