What are the standards for wire harness tension? What are the specific standards?

Wire Harness Tension Standards are provisions for the maximum pulling force or tension that a wire harness is required to withstand during installation and use. These standards are designed to ensure that wire harnesses are not damaged under normal operating conditions, ensuring their reliability and safety. The following are some common wiring harness tension standards and related specifications: IPC/WHMA-A-620: This is a standard for wiring harness assembly jointly developed by the International Electronics Council (IPC) and the Wire Harness Manufacturers Association (WHMA). It includes requirements for harness mounting, soldering, fixing and tension testing. IPC/WHMA-A-620 standard specifies different categories of harness tension standards, which are categorized and evaluated according to the application and environmental requirements. UL 486A/B: This is a standard for harness connectors developed by the U.S. Safety Laboratory (UL). UL 486A/B standard specifies the maximum loads required to be withstood between the harness connectors and wires. The UL 486A/B standard specifies the maximum tensile force or tension value to be withstood between the wiring harness connector and the wires.ISO 6722: This is a standard developed by the International Organization for Standardization (ISO) for use in automotive wiring harnesses.ISO 6722 specifies the maximum tensile force or tension value to be withstood by the different categories of automotive wiring harnesses to ensure the safety and reliability of the harnesses during operation of the vehicle.MIL-STD-202G: This is a standard developed by the U.S. Department of Defense for use in standard developed by the U.S. Department of Defense to assess the reliability of electronic components and systems. It includes pull test requirements for wire harnesses to ensure durability and reliability in military applications. These standards typically define the pull force criteria for wire harnesses based on the application area, environmental conditions, and usage requirements of the harness. Specific standard requirements and values can vary according to different standards and specifications. Therefore, applicable standards should be referred to and followed when designing and manufacturing wire harnesses to ensure their safety and reliability.

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