Thhn Cable For Different Kinds Of Areas

In general, the conductors of the cable are covered (protected) by insulating layers, protective layers, shielding layers, etc. However, there are many types of cables on the market, including aluminum core thhn cables, aluminum alloy cables, copper cables, etc.

Although these cables use different materials, their properties and uses are also different, but they can be divided into low-voltage cables and high-voltage cables. So, you know, how should low-voltage cables and high-voltage cables be distinguished? Today, Asia Cable will take you to find out.

In my country's power industry, common voltage levels are 220V, 380V, 1000V, 10000V, 35000V, 110000V, 220000V, 500000V, etc. Medium and low voltage cables: (generally refers to 35KV and below): high voltage polyethylene insulated cables, high voltage polyethylene insulated cables, organic chemical high density polyethylene insulated cables, etc.

High-voltage thhn cables: (generally 110KV and above): high-voltage polyethylene cables and organic chemical high-density polyethylene insulated cables, etc. Ultra-high voltage cable: (275 ~ 800KV). UHV transmission cable: (1000KV and above).

When it comes to the difference between high-voltage cables and low-voltage cables, there are mainly the following points: The structure of manufacturing cables is different, and the structure of high-voltage cables is more complicated than that of low-voltage cables.

Low-voltage cables generally only have a three-layer structure, while high-voltage cables can reach seven layers and as many as eight layers. In addition, from a structural point of view, high-voltage cables have a water-blocking buffer layer and a semi-conductive tape layer, and the production technology of high-voltage cables is higher than that of low-voltage cables.

Therefore, it is very easy to distinguish which thhn  cable is a high-voltage cable and which is a low-voltage cable from the two points of its section. Of course, general high-voltage cables and low-voltage cables will have various parameters marked on their surfaces, such as cable type, usage code, number of wires and voltage level. So as soon as we see this information, we know whether the cable is a high voltage cable or a low voltage cable.

The above is the content of this issue about the difference between medium and low voltage cables and high voltage cables and UHV cables.

Finally, Asia Cable reminds everyone that when purchasing wires and cables, you must look for regular manufacturers, check the quality clearly, and don’t judge them because of cheap prices. Go buy some unqualified wires to avoid accidental damage to personnel and property.