he temperature index test shall be carried out on IEC 60172 on unimpregnated enameled wire specimens with a nominal conductor diameter of 1.000 mm and a grade 2 film thickness.

The temperature index shall not be less than the specified value of the relevant product standard, and the failure time at the lowest test temperature shall be not less than 5000h. See the relevant product standards for refrigerant resistance.

Straight weldability can be found in the relevant product standards.Thermal bonding is subject to the requirements of the relevant product standards.

See the relevant product standards for the dielectric loss factor. See the relevant product standards for transformer oil resistance.See the relevant product standards for weight loss. The pinhole test can be found in the relevant product standards.