What Are The Consequences Of Non-Standard Wire And Cable Insulation Thickness

The thickness of the sheath also has an impact on the quality of the cable, so do you know what will happen if the thickness of the wire and cable is too thin or too thick? The function of the cable sheath is to protect the insulating core of the cable from being damaged under the action of external force, which plays a protective role.

1. Too thin: reduce the service life of wire and cable products

After long-term operation, it is directly buried, immersed in water, and exposed to open air or easily corrosive environment. Due to the long-term corrosion of the external medium, the thinnest point of the sheath may be broken down. In addition, long-term energization of wires and cables will generate a lot of heat, the allowable working temperature of the conductor is 70 °C, and the temperature of long-term use of PVC should not exceed 65 °C. Therefore, wires and cables are actually in a situation of "internal and external troubles".

2. Too thick: it increases the difficulty in the laying process

At present, more and more environments require high-voltage cable products to have a small outer diameter, and gaps need to be considered during the laying process to dissipate the heat after the wire and cable are energized. The thickness of the sheath will increase the difficulty of laying, so the thickness of the sheath is strictly in accordance with Standard, otherwise it cannot play the role of protecting wires and cables. Nor can we blindly pursue its