EV high voltage cable sheath and insulation standards and functions
EV high-voltage cables are the nervous system of electric vehicles, and the choice of materials for each structure is critical. The insulation layer of the high-voltage cable mainly plays the role of shielding electromagnetic interference, while the outer sheath of the cable is the outermost layer of the cable and protects the inner core. Common materials for outer sheaths.
The role of the outer sheath of the cable The main function of the outer sheath of the cable is to strengthen the insulation properties while protecting the cable from mechanical damage.
Common materials for cable outer sheath Sheath materials can be divided into metallic materials and non-metallic materials. Metallic materials include copper sheath, aluminum sheath and lead sheath. Non-metallic sheaths include polyvinyl chloride, polyethylene, polypropylene, nylon, fluoroplastics, silicone rubber, neoprene, chlorosulfonated polyethylene, nitrile rubber, low-smoke halogen-free polyolefin, polyurethane, etc.
Regulations of the outer sheath of the cable The jacket is the exterior of the cable. The appearance is required to be smooth and round, with uniform luster, no deviation from the core material (not exceeding the specified deviation), no mechanical damage, flattening, no visible debris, bubbles, trachoma, obvious particles, slub shape, twisted shape, etc. In addition to meeting the above quality requirements, the thickness of the sheath also has a certain influence on the quality of the cable.
Cable outer sheath standard The thickness of the sheath is calculated and controlled according to the standard, and the calculation formula is D (outer diameter before extrusion) × 0.035+1 The thinnest point of the single-core sheath: nominal value × 85%-0.1; The thinnest point of the multi-core sheath: nominal value × 80%-0.2;
The difference between the outer sheath of the cable and the insulating material of the cable The jacket material is mainly used to protect the cable. Used to select sheath material according to external conditions, temperature, humidity, chemical environment, special requirements and other factors. The insulating material mainly protects the conductor insulation. Non-insulating materials and temperature classes are selected based on conductor heating conditions, service life and special requirements.
OMG provides orange EV HV Cable. The ev high-voltage cable are used to connect the charging port and the battery, the interior of the batter