Standard Test Method for Thermal Endurance of Flexible Sheet Materials Used for Electrical Insulation by the Curved Electrode Method

Importancia y uso:

5.1 A major factor affecting the life of insulating materials is thermal degradation. Other factors, such as moisture and vibration, are able to cause failures after the material has been weakened by thermal degradation.

5.2 Electrical insulation is effective in electrical equipment only as long as it retains its physical and electrical integrity. Thermal degradation is able to be characterized by weight change, porosity, crazing, and generally a reduction in flexibility, and is usually accompanied by an ultimate reduction in dielectric breakdown voltage.

Subcomité:

D09.01

Referida por:

D2304-23, D1711-24A

Volúmen:

10.01

Número ICS:

83.140.10 (Films and sheets)

Palabras clave:

curved electrode; dielectric breakdown voltage; flexible sheets; temperature index; thermal endurance; thermal endurance graph; thermal life; thermal life curve ;