High-voltage cables are composed of conductors, insulation, sheaths, shields, aluminum foils, tapes, and fillers.
The conductor material usually consists of annealed soft copper wire or tinned copper wire. Soft copper wire is made by heating hard copper wire to remove residual stress generated by cold working. It has good flexibility and flexibility, and has good electrical conductivity. It is a commonly used power cable wire material. Tinned copper wire is tinned on the surface to enhance the protection of copper conductors, and is generally used in high-voltage cable conductor materials at 150°C.
Insulation and sheath materials are generally low-smoke halogen-free cross-linked polyolefins, silicone rubber materials, fluoroplastic materials, etc.
At present, there are three main matching schemes for high-voltage cables on the market: TPE insulation + TPE sheath, XLPE insulation + XLPE sheath, and rubber-silicon insulation + rubber-silicon sheath. TPE cable is relatively soft, does not require irradiation process, and is relatively simple to process. Due to the particularity of the material, the cable has poor heat resistance, wear resistance and corrosion resistance, and has a greater risk of cracking in long-term rain and sunlight environments; XLPE cables Oil resistance, weather resistance, acid and alkali resistance are good, and the overall electrical and mechanical properties are good, but the cable has been irradiated, and the product is hard; the rubber silicon cable has good flexibility and high temperature resistance, up to 200 degrees , but the process is more complicated, and the flame retardant effect is not good.
The shielding method is generally tinned copper + braided shielding, which can reduce electromagnetic interference (EMI) and radio interference (RFI). The iso-crimping structure is connected to the housing of the battery motor controller, and then connected to the body ground.
Since its establishment, OMG has been focusing on the research and development, production and sales of high-voltage cables and charging cables for new energy electric vehicles. It has rich experience, excellent technology and strong production capacity. Its products are of good quality and delivered on time, and are well received at home and abroad. The trust of customers is closely following the pace of the country to vigorously promote the development of the new energy industry.
About OMG：https://www.omgevcable.com/
