The difference between XLPE insulated cable and ordinary insulated cable

XLPE insulated power cable has good thermal-mechanical properties, excellent electrical and chemical corrosion resistance, and also has the advantages of simple structure, light weight, and no drop restrictions on laying. Currently widely used in urban power grids, mines and chemical plants and other places. The insulation of the cable adopts cross-linked polyethylene, which uses chemical methods to convert linear molecular polyethylene into cross-linked polyethylene with a three-dimensional network structure, thereby greatly improving the mechanical properties of polyethylene and maintaining excellent electrical properties.

So do you know the difference between XLPE insulated cables and ordinary insulated cables? Compared with ordinary insulated cables, what are the advantages of XLPE insulated cables? Let's talk about the difference between XLPE insulated cables and ordinary insulated cables.

1. The material difference between XLPE insulated cable and ordinary insulated cable.

2. Temperature resistance: The temperature resistance of ordinary insulated cables is generally 70°C, and the temperature resistance of XLPE insulated cables can reach 90°C.

3. Different current carrying capacity: For cables with the same conductor cross-sectional area, the current carrying capacity of the XLPE insulated cable should be greater than that of the ordinary insulated cable.

4. Scope of application: Ordinary insulated cables will release toxic HCl fumes when they are burned. Ordinary insulated cables cannot be used when fire protection requires low toxicity. XLPE insulated cables are suitable for distribution networks, industrial installations or other fields that require large-capacity power consumption. They are used for fixed laying on power transmission and distribution lines with AC 50Hz and rated voltage of 6kV to 35kV. The main function is to transmit electric energy.

Advantages of XLPE insulated cables:

(1) Cross-linked polyethylene is a cross-linked polyethylene that converts a linear molecular structure into a three-dimensional network structure by chemical or physical means. To a large extent, it improves the thermomechanical properties of polyethylene and maintains excellent electrical properties. performance.

(2) The rated working temperature of the conductor of the XLPE insulated cable can reach 90℃, which is higher than that of the PVC insulated cable and the PE insulated cable, thereby further improving the bearing capacity of the cable.

(3) XLPE insulated cables have excellent thermomechanical properties, excellent electrical properties and chemical corrosion resistance, and at the same time have the advantages of simple structure, light weight, and unrestricted laying. They are widely used in urban power grids and mines. and new cables from the factory.