The 70-year-old cable is suitable for all densely populated places, such as shopping malls, theaters, stations, airports and other public places, as well as important distribution lines, building wiring, home improvement and so on. The service life of this product is not less than 70 years at the average working temperature of 70℃. The allowable working temperature of the cable conductor for a long time is 90℃, 105℃, 125℃; The operating temperature of short circuit (5S) is 250℃.

When purchasing wire and cable, we will find that the wire and cable products on the market are mainly copper core and aluminum core; In the purchase, some people will recommend aluminum core, because the price is cheaper than copper core in the same specification; It is also recommended to use copper core, which is considered safer and more cost-effective.

Double-layer coextrusion refers to the structure formed by the outer insulation layer on the basis of the inner insulation layer, which is often used in high-voltage power cables. The single layer has only one insulating layer, which is often used in low-voltage power cables. It can be seen that the difference between double layer coextrusion and single layer is the difference in the number of insulation layers, and double layer coextrusion generally has higher density and tensile strength.

Environmental protection cables will effectively drive the development of the cable industry and enhance the competitiveness of cable manufacturers. In green practice and innovation, the cable industry is becoming more and more stable on the road of sustainable development.

Charging pile is now a common energy supply equipment, but there are still a lot of people do not know how many square wires are needed to install charging pile. Charging pile wire harness thickness can not be unified, mainly by the charging pile capacity and wire harness in the flow of power to withstand the voltage to determine, generally speaking, the charging pile wire than other wires are much thicker, today we learn how to install the charging pile when choosing the right cable.

Because the wire and cable need to be used in different occasions, will come into contact with air, water, acid and alkali substances, and sometimes even to deal with a variety of harsh environments,