At present, there is a large demand for copper in the project design and use of wires and cables, and because the aluminum core cable is prone to breakage during installation, the contact resistance of the connection with the copper conductor is too large, and the aluminum material is more creepy. performance, the reliability of the connection is poor. Therefore, copper wires and cables are more widely used than aluminum core cables.
In recent years, the wires produced by cross-linked polyethylene materials have the characteristics of wear resistance, high temperature resistance, large carrying capacity, etc., and will not produce corrosive and toxic gases when burned. Low, has become the leading material for low-voltage cross-linked cable insulation materials.
PVC insulated flexible cable is the most common wire and cable used in households. It has high flexibility and safety. It is mainly suitable for equipment with a rated voltage of 450/750V and below, but there are many types. For It is better to choose the suitable wire type, and then we will introduce their uses and differences to you.
Through statistical analysis of line faults, faults caused by factors such as construction, installation, and connection are often much more likely to occur than faults caused by high-temperature line body defects. Therefore, in addition to the correct selection of wires and cables and supporting accessories, how to install them correctly and safely in addition to designing and constructing according to the specifications?
The aging of wires and cables will directly endanger personal safety and cause dangerous accidents. The direct cause of the aging problem of special cables for wires and cables is the breakdown caused by insulation drop. There are many factors that cause the external insulation of the cable conductor to age and the protection performance to decline. Based on 20 years of experience in production and operation, Zhengzhou Jinshui Cable has summed up several main reasons.
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