IPC 620 Class 3: What is the IPC/WHMA-A-620 Standard?

Índice
  1. Prescribes practices and requirements
  2. Describes materials, methods, tests, and acceptability criteria
  3. Includes assembly activities
  4. Allows for any method
  5. Sets expectations for acceptable quality workmanship

Prescribes practices and requirements

The IPC/WHMA-A-620 standard is a set of guidelines and requirements for the manufacture of cable, wire, and harness assemblies. It provides a comprehensive framework for ensuring the quality and reliability of these assemblies. The standard is developed by the IPC (Association Connecting Electronics Industries) in collaboration with the WHMA (Wire Harness Manufacturers Association).

IPC 620 Class 3 is the highest level of certification within the IPC/WHMA-A-620 standard. It is designed for manufacturers who require the highest level of quality and reliability for their cable and harness assemblies. Class 3 assemblies are typically used in high-performance applications where failure is not an option.

The standard prescribes specific practices and requirements that must be followed during the manufacturing process. These practices cover a wide range of areas, including design, materials, assembly methods, testing, and inspection. By adhering to these practices, manufacturers can ensure that their cable and harness assemblies meet the highest standards of quality and reliability.

Describes materials, methods, tests, and acceptability criteria

The IPC/WHMA-A-620 standard provides detailed descriptions of the materials, methods, tests, and acceptability criteria that must be used during the manufacturing process. This includes guidelines for selecting and using appropriate materials, such as cables, wires, connectors, and insulation materials.

The standard also describes the various methods that can be used to create interconnections, such as crimping, soldering, and mechanically securing. It provides specific requirements for each method, including the tools and equipment that should be used, the techniques that should be followed, and the acceptable criteria for the finished interconnections.

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In addition, the standard outlines the tests and inspections that should be performed to ensure the quality and reliability of the assemblies. This includes electrical tests, mechanical tests, and visual inspections. The standard provides detailed guidelines for conducting these tests and inspections, as well as the acceptable criteria for the results.

Includes assembly activities

The IPC/WHMA-A-620 standard not only covers the manufacturing process but also includes guidelines for various assembly activities. This includes lacing and restraining criteria associated with cable and harness assemblies. Lacing is the process of tying or securing cables and wires together using lacing cord or tape. The standard provides specific requirements for lacing, including the type of lacing material to be used, the spacing and tension of the lacing, and the acceptable criteria for the finished lacing.

Restraining criteria, on the other hand, refer to the methods and requirements for securing cables and harnesses in place. This includes the use of clamps, brackets, and other mechanical devices to prevent movement or damage to the assemblies. The standard provides guidelines for selecting and using appropriate restraining methods, as well as the acceptable criteria for the finished restraints.

Allows for any method

One of the key features of the IPC/WHMA-A-620 standard is that it allows for any method that produces an assembly conforming to the acceptability requirements described in the standard. This means that manufacturers have the flexibility to choose the most suitable methods and techniques for their specific applications.

However, it is important to note that the standard sets strict requirements and criteria for each method. Manufacturers must ensure that their chosen methods meet these requirements and produce assemblies that meet the highest standards of quality and reliability. This ensures consistency and uniformity in the manufacturing process, regardless of the chosen method.

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Sets expectations for acceptable quality workmanship

The IPC/WHMA-A-620 standard sets clear expectations for acceptable quality workmanship for cables and harnesses. It defines the criteria for acceptable workmanship, including the appearance, functionality, and reliability of the assemblies.

By following the guidelines and requirements of the standard, manufacturers can ensure that their cable and harness assemblies meet these expectations. This not only enhances the quality and reliability of the assemblies but also helps to build trust and confidence between WHMA members and their customers.

The IPC/WHMA-A-620 standard is a comprehensive set of guidelines and requirements for the manufacture of cable, wire, and harness assemblies. IPC 620 Class 3 is the highest level of certification within this standard, designed for manufacturers who require the highest level of quality and reliability. The standard prescribes specific practices and requirements, describes materials, methods, tests, and acceptability criteria, includes assembly activities, allows for any method that meets the requirements, and sets expectations for acceptable quality workmanship. By adhering to this standard, manufacturers can ensure that their cable and harness assemblies meet the highest standards of quality and reliability.

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