gui chao cable news: how to choose home improvement lines?
from：guichao author：admin click： 265 addtime：2017-03-03 16:05:07
in the home improvement, in order to look beautiful, and now many people are favored in the dark, the wires buried in the wall. but also because of this, after the renovation of the wire can not see, so in order to save money, many people will think that the wire can be bought, not too expensive.
in fact, this idea is wrong, because the wire buried in the wall, once the problem will be very troublesome repair, and poor wire, easy to cause a short circuit, causing a fire.
therefore, it is necessary to select a high quality wire.
but the market wire variety, how to choose uneven in quality, to the quality of the wire?
1, look for the "ccc" certification mark wire
cable products and our lives are closely related to the quality of its direct impact on our personal and property security. therefore, wire and cable products are the national mandatory safety certification of products, all production enterprises must obtain the chinese board certified electrical product certification "ccc" certification, obtained "ccc" certification mark, "ccc" certification marks on the certificate or the product.
2, insulation layer
national standards for wire insulation layer uniformity to be thin, the average thickness of a clear data. the thickness of the insulating layer of the normal wire is uniform, non core and tightly wrapped on the conductor.
3, wire core
use pure copper production of raw materials and strict drawing and annealing (softening), stranded wire. the surface should be bright, smooth, no burrs, twisted tight smooth and soft toughness, not easy to break. merchants can be asked to cut a broken end, look at the copper core material.
the wire is small, but the responsibility is significant, especially in people's lives and appliances are escalating today, in order to create a safe and warm home, it is time to upgrade the wire.