1. Copper and aluminum single wire drawing Copper and aluminum rods commonly used in electric wires and cables are used to reduce the cross section, increase the length and increase the strength by drawing machine through one or several die holes of drawing dies at room temperature. Wire drawing is the first process of each … Read more
Crosslinking cable quality is high, the power frequency breakdown strength can reach 50 kv/mm, tan6 was only 5 x10-4, dielectric constant is 2.3, is the ideal cable insulation, at the same time, the working temperature of crosslinking cable up to 90 c, good heat resistance and weather resistance, and high mechanical properties and chemical properties … Read more
Wire and cable are used to transmit electrical (magnetic) energy, information and electromagnetic energy conversion wire products. It is widely used in various departments of national economy and provides important supporting facilities for various industries, national defense construction and major construction projects. China’s wire and cable industry, based on a large number of technology introduction, … Read more
1. Copper and aluminum have different potentials. The part in contact with copper and aluminum will accelerate the oxidation of the aluminum wire due to the galvanic cell reaction. To join together, a copper – aluminum transition wire clip or transition wire pipe must be used. 2. This is a question of chemistry, the chemical … Read more
As fire-resistant cables are used more and more widely, many manufacturers are producing them, but their quality is often not guaranteed. Therefore, in general, enterprises in the development of fire-resistant cable products, are the first trial production of a section of products, sent to the relevant national testing institutions, after obtaining the test report, mass … Read more
Wires and cables are easily affected by the external use environment. Careless protection will easily lead to hardening of the wire body, peeling off of insulation skin and other phenomena. Many users will mistakenly believe that the product quality has problems, which in fact has a great relationship with the temperature. The outer skin of … Read more
The single-core cable wire is a hard wire (BV wire), and only the wires below 10mm2 have a single core. Multi-core cable wire can be divided into multi-core hard wire (BV wire) and multi-core flexible wire (BVR wire). For example, 2.5mm2 wire, single-core BV wire is composed of 1 strand of conductor with a diameter … Read more
The inspection of wire and cable has always been an important part of national standard wire and cable. The higher the quality inspection department of a wire and cable enterprise is, the better the quality of the wire and cable produced by the enterprise is and the more trustworthy it is. And the more stringent … Read more
With the increasing level of urbanization, people’s work and life rhythm is accelerating, and people’s awareness of safety and environmental protection is also increasing. Wires and cables are closely related to the lives of residents, and consumers are increasingly demanding the safety and environmental performance of wires and cables. Wire and cable companies have also … Read more
Twisted pair cable. Most people don’t know what it is. As the name implies, twisted pair cable literally means to wind two or more separate insulated wires together and make them parallel to each other. Twisted pair wire has the property of eliminating interference. Therefore, cables are suitable for short distance data and voice infrastructure … Read more