What is the difference between commonly used PVC wire and cable materials?


PVC insulation: also called polyvinyl chloride insulation, is a polymer formed by free polymerization of vinyl chloride monomer under specific conditions. It has the characteristics of stability, acid resistance, alkali resistance, corrosion resistance, and aging resistance. It is widely used in construction materials, daily necessities, pipelines, wires and cables, and sealing materials.

  PVC wire and cable materialDivided into soft and hard: soft are mainly used to make packaging materials, agricultural films, etc., and are widely used in the manufacture of wire and cable insulation, such as: ordinary polyvinyl chloride insulated power cables; while hard ones are generally used Used in the production of pipes and plates.

The biggest feature of PVC material is flame retardant, so it is widely used in the field of fire protection, and it is one of the most common insulating materials for flame retardant and fire resistant wire and cable applications.

PE polyethylene insulation

PE insulation: also called polyethylene insulation. It is a thermoplastic resin made by ethylene polymerization. It is non-toxic and harmless, has excellent low temperature resistance, and can withstand most acids and alkalis, and has excellent electrical insulation properties.

At the same time, because polyethylene has the characteristics of non-polarity, it has the characteristics of low loss and high conductivity, so it is generally used as an insulating material for high-voltage wires and cables.

XLPE cross-linked polyethylene insulation

XLPE insulation: also called cross-linked polyethylene insulation, it is an advanced form of polyethylene material after reformation. After improvement, its physical and chemical properties have been greatly improved compared to PE materials, and at the same time, its heat resistance level has been significantly improved.

Therefore, the wire and cable made of cross-linked polyethylene insulation has the incomparable advantages of the polyethylene insulated wire and cable: light weight, good heat resistance, corrosion resistance, relatively large insulation resistance, etc.

The difference between PVC insulation, PE insulation and XLPE insulation

PVC insulation: low working temperature, short thermal aging life, small transmission capacity, low overload capacity, and great harm from smoke and acid gas during fire. General-purpose products in the wire and cable industry, with good physical and mechanical properties, good processing properties, and low cost and price. But containing halogens, the maximum amount of sheath.

PE insulation: excellent electrical performance, with all the advantages of the above PVC. Commonly used for wire or cable insulation, data line insulation material, low dielectric constant, suitable for data line, communication line, various computer peripheral core wire insulation.

XLPE insulation: almost as excellent as the electrical properties of PE, at the same time, the long-term working temperature is relatively higher than that of PE, the mechanical properties are better than PE, and the aging resistance is better. A new type of environmentally friendly product with high temperature resistance and good environmental resistance, thermosetting plastic. Commonly used in electronic wires and places with high environmental resistance requirements.

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