Nowadays, more and more household appliances, personal standard of living is also higher and higher, with the improvement of personal safety awareness, personal decoration with the wire and then also on the agenda, the wire is used in good and bad, directly affecting the safety of individuals. As a member of the wire and cable industry, with their own little microwave a little knowledge to teach you how to purchase can make their own safety wire.
In the market there are many varieties of wire, according to their own electrical load to use the appropriate wire.
Some of the wires sold on the market are cheap and some are more expensive, some people tend to compare the cheaper first, however, the cheaper wires, there are often a lot of performance that does not meet his instructions, there may be a lot of safety hazards to themselves. Wire production technology is not too high, the raw material is not much difference, if too much cheaper, either cutting corners, or the number does not give enough. How to sign it. I give you a few easier to sign other methods:
1, look to see the packaging, the national standard wire tend to do better, neat, hand up a sense of quality.
2, to open the package to look at the wire inside, the national standard wire 1.5 -----6 square wire requirements is the skin thickness is 0.7mm, too thick is non-standard, accordingly, his core is certainly not enough, the wire skin you can pull a little harder, not easy to tear is generally the national standard!
3, burn with fire, leave the 5s extinguished, there is a certain flame retardant function for the national standard line
4, look at the inner core, the inner core of the material (copper) the higher the brightness of the copper is better, and luminosity uniform, glossy, no hierarchy. The national standard requires that the core must be oxygen-free copper.
5, the thickness of the core of the state has certain requirements, but not very strict. However, it will not be wrong a lot, just a very small bit, usually with the eye can not see the error.
6, length, the state is not mandatory to hit the meter, but there are many manufacturers also hit the meter, hit the meter is not necessarily the national standard, but the general national standard generally did not hit the meter. Non-standard meter that is just a means.
7, the state regulations on the line must be hit with a certain logo, the maximum will not exceed 500mm will have the next same logo hit out, above the general product trademarks, manufacturer's name, the implementation of standards and so on.