Introduction of Armoured Electrical Cable

The cable is composed of conductor, conductor insulation, and outer protective layer of the cable. The main difference between armoured electrical cables and non-armored cables is whether there is an armored layer in the structure. The metal materials of the armored layer of the cable are divided into steel tape armor, thin steel wire armor and thick steel wire armor.

Ⅰ. What are the functions of armoured electrical cable

The outer layer of the armoured electrical cable has a hard structure, which can effectively protect the conductor from external damage. It is often used for buried laying in harsh environments. It has high safety performance, stability and reliability, and is not afraid of animal bites and acid rain corrosion. The armoured electrical cable is wrapped with steel tape or steel wire to protect the cable from damage and damage by external mechanical forces; it can also prevent rats and termites from biting, so as not to cause power transmission problems through the armor. The armor has a large bending radius. The armor layer can be grounded to protect the cable.

Armouring means that the outermost protective layer of the cable is wound with steel tape or steel wire to protect the cable from damage by external mechanical forces; while the cross-linked cable refers to the use of cross-linked polyethylene for the outer insulating layer of the cable conductor. Armored XLPE cable can be used, that is, a cable insulated with a cross-linked material and protected by an armored outer layer.

Ⅱ. The advantages of armoured electrical cables compared to unarmored cables

Power cables are divided into armored and unarmored, so what is the difference between the two? The difference between armored cables and unarmored cables is that there is an extra layer of metal reinforcement. The common armoring methods include steel tape armoring and steel wire armoring. The steel wire armoring is divided into thin steel wire armoring and thick steel wire armoring. Steel wire armor. The advantages of armoured cable are as follows

1. The armoured electrical cable mechanical protection layer can be added to any structure of the cable to increase the mechanical strength of the cable and improve the corrosion resistance. It is a wire and cable designed for areas that are prone to mechanical damage and highly susceptible to erosion. It can be laid in any way, among which steel tape armoured electrical cables are generally laid straight and can withstand external forces in the horizontal direction. Steel wire armoured electrical cables are mostly used in vertical shafts and other places that need to be installed vertically.

2. The cable plus the armor layer can also enhance the mechanical protection such as tensile strength and compressive strength to prolong the service life.

3. The armoured electrical cable has a certain degree of resistance to external forces, and it can also be guarded against rat bites, and will not cause power transmission problems through the armor. The bending radius of the armor should be large, and the armor layer can be directly grounded to protect the cable.