The test determines if the insulation of a wire has been converted to a thermoset material by polymer crosslinking. The test is performed for a short time period at a temperature much greater than the temperature rating of the insulation. To pass this test, the wire must withstand the bend and wet dielectric tests after the thermal exposure. This test may be applied to insulation materials which are not crosslinked as well. At the end of the test, we will report the results of the bend (LINK) and wet dielectric (LINK) tests.
Parameters that can be adjusted for this test include:
- Exposure Temperatures
- Exposure Duration(s)
- Number of Specimens
- Mounting Conditions of Specimens during Conditioning
Our Process
Perform visual examination of the specimen. Record and excise observed defects.
Perform dielectric withstand test as a quality control test.
Incubate specimen(s) at the prescribed temperature.
Remove specimen(s) after conditioning has been completed and permitted to return to ambient temperature. Note and record any obvious defects before proceeding.
Perform Bend Test (EN3475 Method 405) and Voltage Proof Test (EN3475 Method 302) on specimens.
Record and report data gathered.