There are many types of power cables on the market. According to different insulating materials, they can be divided into oil-impregnated paper insulated power cables, plastic insulated power cables and rubber XLPE Insulated LV Power Cable . Among them, plastics commonly used in plastic insulated power cables are: polyvinyl chloride, polyethylene, and cross-linked polyethylene.
So, what are the differences between XLPE insulated power cables and ordinary power cables? What are the advantages of XLPE Insulated LV Power Cable compared with ordinary power cables?
The difference between XLPE Insulated LV Power Cable and ordinary cables
01
There are material differences between XLPE Insulated LV Power Cable and non-XLPE insulated power cables.
02
Different temperature resistance: the temperature resistance level of non-crosslinked polyvinyl chloride (PVC) cables is generally 70 ° C, and the temperature resistance of cross-linked polyethylene insulated cables can reach above 100 ° C.
03
Different ampacity: For cables with the same conductor cross-sectional area, the ampacity of XLPE Insulated Power Cable should be greater than that of PVC cables.
04
Scope of application: when non-cross-linked polyvinyl chloride is burned, it will release toxic fumes, and polyvinyl chloride cables cannot be used when fire protection requires low toxicity. XLPE Insulated Power Cable are suitable for distribution networks, industrial devices or other fields that require large-capacity electricity. They are used for fixed laying on power transmission and distribution lines with AC 50Hz and rated voltages of 6kV~35kV. The main function is to transmit electric energy.
Advantages of XLPE Insulated LV Power Cable
01
XLPE insulated power cables have excellent thermal mechanical properties, excellent electrical properties and chemical corrosion resistance, and have the advantages of simple structure, light weight, and unlimited laying. They are currently widely used in urban power grids, mines and factories. new cable.
02
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.
03
The rated operating temperature of XLPE Insulated Power Cable conductors can reach 90°C, which is higher than the rated operating temperature of paper insulated cables, PVC insulated cables and polyethylene insulated cables, thus further improving the load carrying capacity of the cables.
The above is the difference between XLPE Insulated Power Cable and ordinary power cables, and the introduction of the advantages of XLPE insulated power cables. In addition, I would like to remind everyone: due to the different production processes of cross-linked cables on the market, their product performance is also relatively uneven, so you should pay more attention when choosing cross-linked cables.
