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What is the difference between high voltage cable and low voltage cable
Release time:
2021-09-01
Cables are used to transmit power, but the cables sold on the market are divided into high-voltage cables and low-voltage cables. There are many differences between these two types of cables, and their application ranges are not the same. High-voltage cables are an important member of power cables. He is used to transmit power between 1kv and 100kv, low-voltage cables are used to transmit power below 1kv, which is the most important difference between the two.
Cables are used to transmit electricity, but the cables sold on the market are dividedHigh voltage cableAnd low-voltage cable two, there are many differences between the two kinds of cables, and the scope of their application is not the same, high-voltage cable is an important member of the power cable, he used to transmit 1kv to 100kv between the power, while the low-voltage cable is used to transmit 1kv power cable which is the most important difference between the two.
There are also obvious differences between high-voltage cables and low-voltage cables in structure. The structure of high-voltage cables from inside to outside is the inner semiconductor layer of the conductor, the insulating layer and the outer semiconductor layer. Its outermost surface also has a shielding layer and an outer protective sleeve. It can resist the damage of external substances to him when encountering high voltage. Moreover, this kind of cable is mainly used for underground burial and can resist high-strength compression from the surface, in the high-strength working state, there will be no fracture and deformation.
The structure of low-voltage cable is much simpler than that of high-voltage cable. Its structure is mainly divided into conductor filler, insulating layer and protective sleeve, and its conductor is mainly used to transmit current. It is made of multi-strand copper wire or aluminum wire, and can be divided into single-core multi-core, three-core and four-core and other different types, while the inner conductor of high-voltage cable is made of copper wire.
Steel core aluminum stranded wire manufacturers, high voltage cable manufacturersTo tell you, there are obvious differences between high-voltage cables and low-voltage cables in terms of use. High-voltage cables can increase transmission capacity, increase the limit of stability, reduce power consumption by lines, and reduce the investment cost of the project. It is suitable for the transformation of power grid structure in many regions. The main purpose of low-voltage cables is to connect low-voltage power supplies and equipment, control cables, communication cables and signal cables are all low-voltage cables.
High-voltage cables and low-voltage cables also have obvious differences in brands and names. Most high-voltage electric energy will print the relevant parameters and lengths of the cables on the outer layer, as well as the rated voltage and related types, its cross-sectional area, etc. What is the simplest and most direct method to distinguish between high-voltage cables and low-voltage cables.
High-voltage cables are widely used in current power projects, and their quality is relatively good and their service life is relatively long. However, the quality of high-voltage cables sold on the market is also uneven. When you buy them, you must pay attention to the identification of their quality. It is best to buy high-quality products that meet the national quality certification. Golden Great Wall high-voltage cable is a kind of high-voltage cable with good reputation in the industry, which is worthy of people's trust and purchase. Moreover, the enterprise that produces this kind of high-voltage cable is a shortlisted enterprise of State Grid, and it is a national high-tech enterprise with strong growth ability and high technical level, which can meet the needs of most customers for high-voltage cables.
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