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This test is performed to assess the strength of the connection between the wire and its termination to ensure the reliability and integrity of the electrical connection. The design of the terminals and method of their attachment must withstand the applicable mechanical stresses to which they will be subjected to during installation, disassembly, and regular use.
The selection of test conditions to perform the terminal strength test depends on the type of terminal. Evidence of termination damage may not become evident until subsequent electrical and/or environmental tests are performed. Examples of mechanical tests for assessment of terminal strength include:
- Pull test
- Flat-terminal bend test
- Wire-lead bend test
- Twist test
- Torque test