Cable fault can be summarized as grounding, short circuit, broken line three categories, its fault types mainly have the following aspects:

(1) DC resistance detection. The relevant national standards have clear provisions: the DC resistance of the wire and cable must be used as the reference for comparison of the conductor resistance per kilometer,

For many consumers who decorate home wire, are not clear about the difference between bv wire and rv wire, these two specifications of wire, whether from the naming method, or structure and scope of use are there is a gap, take you to understand the bv wire and rv wire: BV: Copper core PVC insulated wire is a single core wire of copper wire, because it is relatively hard, so it is also called hard wire. RV: Copper core polyvinyl chloride insulated connection soft wire, is a flexible wire, is mor

For the allowable long-term working temperature of wire and cable core, rubber insulation is usually 65 ° C, polyvinyl chloride insulation is 70 ° C, and crosslinked polyethylene insulation is 90 ° C. High allowable temperature of conductor in short circuit (not more than 5s for a long duration) : 160 ° C for PVC insulation and 250 ° C for crosslinked polyethylene insulation.

Household electricity is something we often touch in our daily life, but often ignore the wire and cable also need to be maintained, so how should the wire and cable maintenance be done? What benefits can this bring to the wire and cable?

The use of wire and cable can be said to be everywhere, not only in the power, communications, civil, building infrastructure is widely used, ships and petrochemical and other fields are also indispensable, and closely related to the development of the national economy. There is a large demand for more and more manufacturers, but with the increase of cable manufacturers, and now the price of various raw materials, the price of wire and cable products has become very chaotic, and fake and shoddy