What kind of cable is VV cable?

VV cable is a kind of copper core PVC insulated PVC sheathed power cable. The two letters V stand for PVC insulation and sheath materials. The first V is the main insulation of the cable, and the material is PVC, which means plastic. The second V is cable, and the sheath material is also PVC.

VV cable is a very common power cable, and its function is the same as YJV cable most of the time. Although its overall performance is not as good as YJV cable, and it is gradually replaced by YJV cable, it is still widely used in many fields because of its low price.

Generally used as a power transmission hub, it is often buried in soil or laid indoors, in ditches and tunnels. The insulation distance between lines is small, there is no iron tower, so it occupies less land and basically does not occupy ground space.

Extended data:

Vv cable consists of conductor, insulation layer, filling layer, (steel belt layer) and sheath layer from the inside out. The most commonly used conductor material on the market at present is of course copper conductor. The insulating layer and the outer sheath are made of polyvinyl chloride, that is, PVC plastic. The filling layer is generally made of some soft nylon materials to prevent direct contact and extrusion between conductors inside the cable.

The steel belt armored VV cable is VV22 cable. Steel belt armored cable is used for compression resistance and can be used for underground burial. The long-term working temperature of vv cable shall not exceed 70℃, and the laying temperature shall not be lower than 0℃. The maximum allowable temperature of cable conductor is 160℃ in case of short circuit (the longest duration is less than 5s). The cross section includes1.5mm2-240mm2. For example, VV3*95+ 1*50 cable represents a cable consisting of 3 strands of 95 square cores and 1 strand of 50 square cores, and other synonyms.

References:

Baidu encyclopedia -vv electric cable