gui chao cable news: five high quality cable fire accidents caused by high quality (2017-01-25)
from:guichao author:admin click: 197 addtime:2017-02-28 11:44:42
flexible cable now has become increasingly widespread, but with its popularity in the country among the power supply line, some of its security problems have gradually attracted the attention of people, especially in recent years, the cable fire accident is to remind people when using it to pay special attention to. so, what are the reasons for the quality of the fire accident caused by the high flexible cable?!
1, the conductor of the cable core nominal cross section does not meet the requirements. the general provisions of the nominal interface are larger than the actual cable out of production, and the nominal value of the cable will tend to have a standard unit of higher current density, the cable in the course of their work is very easy because of abnormal heat generated due to fire accident.
2, cable production process is poor. the so-called non corrupt business, although not every manufacturer, but the market will inevitably have a number of businesses in order to seek personal gain, in the production process of the cable does not operate in strict accordance with the standards. even some businesses will use some inferior goods to produce crudely made, because the quality of cable fire during use.
3, cable materials impure or unqualified. the cable core wire is mainly made of conductive material with some copper or aluminum, and many businesses in the production process will often use substandard materials or in place of purity is not enough, it will lead to it because it contains more impurities so as to reduce power. therefore, the material used as the core line must be a number of high-quality electrolyte materials, mainly copper and aluminum.
4, insulation components do not meet the requirements of processing or bad, we know that the cable is generally used with an external insulation material wrapping on the properties of the core wire, if the insulating material is unqualified, it will reduce the pressure resistance of their own in the process of using, and the formation of unqualified resistance value. in addition, the long-term use will shorten its service life, it is prone to some short circuit failure caused by fire.
5, improper transportation. the cable is mostly through strict quality inspection in the factory before, but in the process of transportation because there is no right protective measures result in the collision, which occurred in the insulation layer is damaged or broken wire phenomenon.