Types of reference standards for electric vehicle charging cables

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With the adjustment of energy structure, the electric vehicle industry will show explosive growth, which will significantly promote the rapid development of the transmission and distribution industry, and the electric vehicle charging companies will get rapid development.

On the basis of ensuring excellent insulation performance, the electric vehicle charging cable should also have excellent heat resistance and aging resistance. In addition, they should have good low smoke and flame retardance during combustion to ensure that loss and damage are minimized.

Today, electric vehicle charging cable products are mainly based on the demand of the American market, European market and Asian market. Most charging line products are based on IEC60245 and IEC60227 standards issued by the International Electrotechnical Commission (IEC). Among them, the American Article400 charging cable standard was formulated earlier, mainly based on the product standard formulated by UL's UL62 flexible cable standard. The insulating materials specified in the standard include polyvinyl chloride (PVC), thermoplastic elastomer (TPE) and polypropylene. Ethylene (EPR) and other materials, and sheath materials include PVC, chlorinated polyethylene (CPE), TPE and other materials. There are many materials and models in the standard, and most of the specific structural parameters are consistent with UL cable products. It is relatively broad and has no strict restrictions on material and structure, as long as it can meet the necessary performance requirements of the charging cable. The charging cable products of electric vehicles manufactured in Europe are mainly produced in accordance with the European standard coordination documents HD22.4 and HD22.12. HD22.4 specifies ethylene - propylene rubber insulated and ethylene - propylene rubber/neoprene and its equivalent mixture sheathed flexible cables with rated voltage of 450/750V and below. In contrast, HD22.12 specifies heat resistant EPDM insulation,

Because the use requirements of charging cables for electric vehicles are different from those of traditional wires and cables, it is difficult to cover all the requirements for charging cables in the current wire and cable standards. Therefore, it is necessary to formulate special charging cable product standards to promote the healthy development of the industry.

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