At present, the international advanced method for high-voltage cable entry into the ground is that the cable is worn in a high-strength, long-life, high-heat, corrosion-resistant chlorinated polyvinyl chloride casing. Compared with the cement asbestos cable trenches, cast iron pipes, steel pipes and other plastic pipes used in the past, the practical performance and comprehensive economic benefits are much improved.
However, in recent years, a similarly different PVC sleeve has been popular in the domestic market. The production process is simple and the cost is only half of the chlorinated polyvinyl chloride casing. It is understood that the biggest difference between the two is heat resistance, chlorinated PVC casing can resist heat more than 100 degrees Celsius, and PVC casing can resist half of heat. It is said that the power industry has strict requirements on the temperature resistance of plastic casings entering the cable, and the Vicat softening temperature must not be lower than 93 degrees Celsius. If it is lower than this value, it will not only affect the long-term safe and stable operation of the high-voltage cable, but also cause huge economic losses.
The authenticity of this information has not been confirmed by the international electrical network, for your reference only.
Car cable harness, also known as a wire harness, cable assembly, wiring assembly or wiring loom, is an assembly of electrical cables or wires which transmit signals or electrical power. The cables are bound together by connector, terminal, cable ties, sleeves, electrical tape, conduit, PVC tube, corrugate tube, string, or a combination thereof.
Commonly used in automobiles, as well as construction machinery, cable harnesses provide several advantages over loose wires and cables. For example, many aircraft, automobiles and spacecraft contain many masses of wires which would stretch over several kilometres if fully extended. By binding the many wires and cables into a cable harness, the wires and cables can be better secured against the adverse effects of vibrations, abrasions, and moisture.
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