IPC/WHMA-A-620 is a collection of visual Quality Acceptability Requirements for Cable, Wire and Harness Assemblies. IPC/WHMA-A-620 can be used as a stand-alone document for purchasing products, however it does not specify frequency of in-process inspection or frequency of end product inspection. No limit is placed on the number of process indicators or the number of allowable repair/rework of defects. Such information should be developed with a statistical process control plan (see IPC-9191).
This publication describes acceptability criteria for producing crimped, mechanically secured, or soldered interconnections and the associated lacing/restraining criteria associated with cable and harness assemblies. It is not the intent of this document to exclude any acceptable procedure used to make the electrical connection; however, the methods used must produce completed assemblies that conform to the acceptability requirements described in this document.
Significant technical updates, greater ease-of-use and compatibility with other key assembly standards are among the many changes users will find in the newly released B revision of IPC/WHMA-A-620, Requirements and Acceptance for Cable and Wire Harness Assemblies. This important industry standard is a joint effort of IPC and the Wire Harness Manufacturers’ Association (WHMA).
The revision addresses more than 500 documented comments and recommendations from users throughout the industry and features 125 new or changed illustrations.
Some of the most extensive changes appear in the molding and potting section, which has been expanded for increased coverage of Class 2 and 3 requirements, including 31 new illustrations. The document also provides new criteria for wires as small as 32 AWG, and has a section on requirements flow down, which requires companies to have their subcontractors use the standard to ensure all hardware is manufactured to the same guidelines.
IPC/WHMA-A-620B is 400 pages long and features 682 full-color illustrations. IPC/WHMA-A-620 B is the latest revision of IPC A620,
Purchase and download IPC/WHMA-A-620B standard from Electronics.ca Publications. IPC standards are also available on CD-ROM.
Also Avaliable in Spanish, Chinese, German, Danish, Polish, and French Versions.