Specifications of high-voltage cables for new energy vehicles

Description: The main types of high-voltage cables are YJV cables, VV cables, YJLV cables, and VLV cables. The full name of YJV cable is cross-linked polyethylene insulated polyvinyl chloride sheathed power cable (copper core). The full name of VV cable is polyvinyl chloride insulated polyvinyl chloride. The following describes the characteristics of the cable sheath material selection and use.

EV cable uses extruded PVC or XLPE as the inner insulator, with tinned copper shielding on the outside, aluminum foil tape on the outside, and the sheath is high tear-resistant silicone rubber.

Among them, the characteristics of the cable insulator:

Silicone rubber has good flexibility, giving the cable excellent dielectric strength.

Silicone rubber PET braided cable has excellent mechanical protection by maintaining good flexibility. It has good friction reduction performance, high wear resistance and excellent chemical resistance to transformer oil, light fuel oil and most types of detergents.

XLPE: It can be called: cross-linked polyethylene has the following advantages:

Heat resistance: XLPE with a mesh three-dimensional structure has excellent heat resistance. ...

Insulation performance: XLPE maintains the original good insulation properties of PE, and the insulation resistance is further increased. ...

Mechanical properties: Due to the establishment of new chemical bonds between macromolecules, the hardness, stiffness, wear resistance and impact resistance of XLPE are improved, thus making up for the disadvantage of PE being susceptible to cracking due to environmental stress.

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