What are the new energy vehicle wiring harness requirements? What are the specifications for new energy vehicle wiring harness?

New energy vehicle wiring harness is an electrical wiring harness system applied in electric vehicles and hybrid vehicles. Due to the special nature of new energy vehicles and the characteristics of high voltage and high power, new energy vehicle wiring harness has some special requirements and specifications. The following are some common new energy vehicle wiring harness requirements and specifications: 1. High-voltage insulation capacity: new energy vehicle wiring harnesses need to have a high voltage insulation capacity to withstand the potential of the voltage in the high-voltage system and to prevent the risk of electric shock. The wire harness insulation materials need to have good electrical insulation properties, which can effectively prevent current leakage and arc discharge.2. High current conduction capacity: New energy vehicle harnesses need to be able to withstand high current conduction to meet the needs of electric vehicle high power system. Wire materials need to have low resistance and high current conduction capacity to reduce line loss and improve energy efficiency.3. High temperature resistance: Due to the high temperature characteristics of the battery system and motor system of new energy vehicles, the wiring harnesses need to have good high temperature resistance, and be able to work normally under high temperature environment without damage. The wires and insulating materials need to have high temperature and heat aging resistance to ensure the stability and reliability of the harness under high temperature conditions.4. Fire performance: New energy vehicle wiring harnesses need to have good fire performance to prevent fire caused by electrical failure. The wire harness insulation material needs to be flame retardant and meet the relevant fire safety standards.5. Anti-vibration and anti-shock performance: New energy vehicle harnesses need to be able to withstand the vibration and shock of the vehicle driving process, in order to maintain the stability of the wiring harness and the reliability of the connection. The harness needs to be properly fixed and protected to minimize the impact of vibration and shock on the harness.6. EMC (Electromagnetic Compatibility) Requirements: New energy vehicle wiring harnesses need to have good electromagnetic compatibility to avoid electromagnetic interference on other vehicles or equipment to have a negative impact. Harnesses need to take shielding measures to reduce electromagnetic radiation and anti-interference ability to meet the relevant electromagnetic compatibility requirements. In addition to the above requirements, new energy vehicle wiring harnesses also need to comply with a series of relevant international and industry standards and specifications to ensure the quality and safety of the harness. The following are some common new energy vehicle wiring harness specifications:1. ISO 6722:2016: this standard specifies the requirements and test methods for single-core and multi-core wires used in electrical wiring harnesses for road vehicles.2. LV 214: this specification is a test specification for the electrical systems of new energy vehicles issued by the German Society of Automotive Engineers (VDA), which covers the electrical, mechanical, and environmental test requirements for wiring harnesses.3. GB/T 18384.3-2016: this standard is a Chinese standard that specifies the technical requirements and test methods for wiring harnesses and connectors for electric drive systems used in electric and hybrid vehicles.4. SAE J2030-2014: this standard is issued by the Society of Automotive Engineers (SAE), which specifies the wiring harnesses and connectors for electric vehicles, including electrical performance, environmental adaptability and reliability requirements.5. UL 2586: This standard is a safety standard for battery management system wiring harnesses and connectors issued by the U.S. Safety Laboratory (UL), covering requirements for electrical insulation, flame retardancy and voltage resistance. These codes and standards are designed to ensure the quality, safety and performance of wiring harnesses for new energy vehicles, providing a guarantee for the reliable operation of new energy vehicles. Manufacturers and suppliers should follow these specifications when producing wiring harnesses for new energy vehicles, and conduct appropriate testing and verification to meet market and customer requirements.

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