What are the standards for wire harnesses? What are the specific standards?

Wiring harness standards are a series of specifications and standards developed to ensure the quality, reliability and safety of wiring harness products. These standards are typically developed and managed by international standards organizations, industry organizations, or national standards bodies. The following are some common wiring harness standards: IPC/WHMA-A-620: This standard was developed by the Electronics Industry Coalition (IPC) and the Wiring Harness Manufacturers Association (WHMA) and covers manufacturing requirements, acceptance criteria, and conformance requirements for electrical wiring harnesses and wiring harness assemblies. UL (Underwriters Laboratories) Standard: UL is an independent UL (Underwriters Laboratories) standards: UL is an independent, third-party safety certification organization that has developed a number of standards for wiring harnesses, such as UL 758 (Standard for Wires and Cables) and UL 224 (Standard for Insulating Tubing). These standards address electrical properties, material requirements, flame retardancy, etc. ISO 6722: This is a series of standards developed by the International Organization for Standardization (ISO) for the specification of automotive wiring harnesses. ISO 6722 specifies the electrical characteristics, insulation material requirements, heat resistance, flame resistance, etc., of automotive wiring harnesses. SAE J1939: This standard was developed by the Society of Automotive SAE J1939: This standard is developed by the American Society of Automotive Engineers (SAE), used for commercial vehicles and heavy machinery and equipment communication and electrical systems. SAE J1939 standard specifies the physical connection of the wiring harness, electrical connection and data communication protocols and other requirements. DIN standard: The German National Organization for Standardization (DIN) developed a series of wiring harness-related standards, such as DIN 72551 (automotive wire standard) and DIN 72552 (automotive connectors). 72552 (automotive connector standard) and so on. These standards apply to the design, material selection and performance requirements for automotive wiring harnesses. In addition, there are many industry-specific standards, such as those for aerospace, medical devices, and the military, that guide the design, manufacture, and testing of wire harnesses for related industries. It is important to note that the standards to be followed for a specific application depend on the requirements of the country/region and the industry, as well as the environment and purpose for which the harness will be used. Therefore, when designing and manufacturing wire harnesses, it is recommended that they be evaluated and followed according to the relevant industry standards and specifications to ensure compliance and quality reliability.

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