What are the requirements and standards for vehicle wiring harness design? What are the manufacturers of complete vehicle wiring harnesses?

Vehicle wiring harness design is an important part of the automobile manufacturing process, its requirements and standards mainly involves the following aspects: electrical system requirements: vehicle wiring harness design to meet the vehicle's electrical system requirements, including the voltage level, current capacity, wiring harness resistance, electromagnetic interference and so on. The wiring harness should be able to meet the vehicle power supply and communication needs of various systems, to ensure that the connection between the various electrical equipment is reliable and stable. Mechanical performance requirements: harness design should take into account the mechanical properties of the vehicle requirements, including harness durability, tensile strength, vibration resistance, heat resistance. Harness to be able to withstand a variety of mechanical stresses and environmental impacts in the vehicle driving process, to ensure that the harness in the service life will not break, wear and tear and other issues. Safety requirements: the vehicle harness design needs to meet the safety requirements to ensure that the harness will not cause fire, short circuit and other safety hazards in the working process. The wiring harness should be made of high-temperature-resistant, flame-retardant materials, and take appropriate insulation and protective measures to prevent electrical failures and safety accidents. Standards compliance: The wiring harness design of the whole vehicle should comply with the requirements of relevant standards and specifications of the industry, such as ISO 6722 (Specification for Road Vehicle Wires and Cables), ISO 14572 (Specification for the Structure and Performance of Vehicle Wiring Harnesses), and so on. In addition, different automobile manufacturers may also have their own standards and requirements, and wiring harness designers need to understand and meet the corresponding standard requirements. Regarding the manufacturers of complete vehicle wiring harnesses, there are many specialized wiring harness manufacturers around the world, and the following are some of the well-known ones: Delphi Automotive Systems LLC: Delphi is a leading global supplier of automotive components, offering a wide range of complete vehicle wiring harness solutions. They have extensive manufacturing and design capabilities and provide wiring harness products to several automobile manufacturers.Sumitomo Electric Industries, Ltd.: Sumitomo Electric is a Japanese integrated wire and cable manufacturer and one of the world's leading suppliers of wiring harnesses for complete vehicles. They provide high quality wiring harness products and customized solutions for major automotive manufacturers.Yazaki Corporation: Yazaki is a Japanese supplier of automotive electrical systems and one of the world's larger manufacturers of complete vehicle wiring harnesses.

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