Though the wire and cable industry is a supporting industry, but it occupies 1/4 of the output value of China's electrical industry, is the second largest industry second only to the automotive industry in China, the rate of product variety meets domestic market share is more than 90%. There are many types of wire and cable products and they have a very wide range of applications, involving electricity, construction, communications, manufacturing and other industries, they are closely related with the various sectors of the national economy, and the pros and cons of their own quality is directly related to the production and security issues. However, in recent years, China has frequently fire accident occurred due to the substandard quality of the wire and cable. In recent years, the same type of electrical wire supplier springs up in large numbers. It is understood that the cable manufacturers in China has reached more than 7,000, and there are increasingly fierce competition between enterprises in the industry, many enterprises in order to reap greater benefits, they do large hands and feet in the bidding links.
Wire and Cable Industry Shady Deal
With the sharp rise in copper prices on the market and a variety of raw material prices, and the bidding price of the wire and cable is relatively low, if enterprises produce in accordance with industry standards and GB, strict implementation of the process is bound to be a significant loss. Wire and cable production process is not complicated, just has the need for two materials, one is conductor of copper or aluminum, another is wrapped outer plastic. In the drive of interests, some enterprises in order to save costs begin to ignore the gatekeeper of raw materials into the plant, and some even deliberately using inferior materials, poor quality cable jacket, however, life expectancy was only 1/10 of the qualified products. According to industry sources, many manufacturers use scrap copper to replace good copper and lots of fiber optic cable manufacturer even use good copper to clad bad copper, or use copper-clad steel, copper clad aluminum to make cable. It is generally difficult to identify poor quality cables and wires, such as household wires, some have brass conductors, and big resistors.
Performance of Wire and Cable Industry
The main problems: the insulation or jacketing weightlessness project failed, failed mechanical properties, thermal extension project failed. Unsatisfactory mechanical properties, sheath or insulation is easy to pull off in the process of laying force causing a short circuit, leakage discharge. The thermal extension project fails easily at high temperatures and causes a short circuit accident.
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This article is come from: http://www.chinaphoneparts.com/index.php/the-tyranny-of-wire-and-cable-industry-in-china.htm
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