This test method provides performance data on candidate insulation systems as a function of time and temperature. These data give engineering information on the wire insulation candidate relative to the performance of materials already in use with a backlog of experience. These tests expose candidate insulation systems to a wide range of temperatures for short and long periods of time, while measuring the degradation of its physical properties. For aerospace use, end-point proof tests include mandrel bend, water soak, and dielectric integrity.
SAE AS4851A-2017 history
2023SAE AS4851A-2023 Relative Thermal Life and Temperature Index for Insulated Electric Wire
2017SAE AS4851A-2017 Relative Thermal Life and Temperature Index for Insulated Electric Wire
2005SAE AS4851A-2005 Relative Thermal Life and Temperature Index for Insulated Electric Wire
1994SAE AS4851-1994 Relative Thermal Life and Temperature Index R(1998)