IEC 60317-70-1:20 20规定了聚酯玻璃纤维缠绕未涂漆和熔融裸、1级或2级漆包圆铜绕组线的要求，温度指数155。IEC 60317-0-10:20 17第4条规定了标称导体直径。 笔记？对于这种类型的导线，热冲击测试是不合适的，因此不能确定热冲击温度。因此，不能指定基于温度指数和热冲击温度要求的等级。

IEC 60317-70-1:2020 specifies the requirements of polyester glass-fibre wound unvarnished and fused bare, grade 1 or grade 2 enamelled round copper winding wires, temperature index 155. The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-10:2017.
NOTE？For this type of wire, the heat shock test is inappropriate and therefore a heat shock temperature cannot be established. Consequently, a class based on the requirements for temperature index and heat shock temperature cannot be specified.