Analyze The Role Of Cable Insulation Layer And Protective Layer

The basic structure of any power cable consists of three parts: conductive wire core, insulation layer, and protective layer. But many people often confuse the insulation layer and protective layer of cables, and even believe that the insulation layer of cables is the protective layer. In fact, the functions of insulation layer and protective layer are different. The former exists for electrical insulation, while the latter exists for protecting cables. The cable editor will provide a detailed analysis for everyone.
Cable insulation layer
The main function of cable insulation layer is to ensure mutual insulation between the conductor and the surrounding environment or adjacent conductors. The core of a cable is a conductor. In order to avoid equipment damage caused by short circuits of exposed wires and harm to human health caused by wires exceeding the safe voltage, an insulation protection layer must be added to the outside of the cable.
Cable protection layer
The cable protection layer is a protective covering layer added outside the cable insulation layer to meet the needs of various usage environments. The main purpose is to prevent mechanical damage and chemical erosion inside the cable, enhance the mechanical strength of the cable, and have tensile and compressive properties. Only cables with protective layers can be protected from mechanical damage and various environmental factors such as water, sunlight, organisms, fires, etc., to ensure the long-term stable electrical performance of the cable.