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Low voltage cable and high voltage cable difference and maintenance

Source : Tianxing Cable | Release date : 2024-05-04
According to the difference in operation at different operating voltages, cable lines can be roughly divided into five categories:

Low voltage cable (450/750V below) Cable (0.6/1KV) High voltage cable (3-35KV) High voltage cable (35-110KV)

Ultra-high voltage cable (110KV-750KV)

Here are the differences between this kind of wire and cable in detail:

Cable: Cable is generally manufactured by polyethylene, and is also effectively manufactured by high-density polyethylene, so cable is divided into chemical crosslinking and general two categories, and other wire and cable have no such difference. All are cross-linked cables, the main use of cable is used to connect low voltage switching power supply and machine equipment, including frequency conversion cables, communication cables, control cables are all belonging to the cable line.

And high voltage cable due to the transmission volume is large, the use is also very common, including power engineering, engineering construction, industrial and mining enterprises, transportation travel these industries, ultra-high voltage cable is due to the slow increase of human activities and its provisions for long-distance transportation also occurred a kind of wire and cable, it means people's new technology wireless communication technology.

Cable in the current effect is essential, whether it is space, deep sea, mountains, intermountain basins, but all human activities, industrial production, transportation and economic development, seems to have the shadow of cable lines, people for the power engineering of this green energy requirements in the future of the world's oil reserves increasingly scarce situation can only be more and more large. As a transmitter between power consumption machines and distribution equipment: the role of cable lines will become increasingly critical.

Naturally, such a key cable will also be difficult, in order to better not harm the daily production and manufacturing operation, the cable must be carried out on time inspection and maintenance work, then the common cable maintenance are what types of?

Load check

The load inspection of the cable is to better prevent the working voltage of the line from exceeding the rated current of the cable. Because the long-term load is very harmful to the cable, it will accelerate the embrittlement of the insulation layer of the cable.

Temperature measurement

If there is a common fault in the cable, it is generally a problem that will rise with the temperature, so the temperature measurement of the cable is also necessary.

Corrosion detection

Corrosion is divided into two categories, one is electrolysis corrosion, one is chemical corrosion, because many cable lines are buried in the ground, it is very easy to be eroded by strong acids and alkali in the soil layer, so corrosion detection should be carried out on time.

In addition to the above three basic tests, fire safety, external damage, small animal biting and other elements should be fully considered, and security risks should be removed on time.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098