The insulating layer is pure natural rubber, copper wire for copper, so, in order to ensure the safety of wire and cable of good conductivity.

绝缘层一般为纯天然橡胶，铜丝为无氧铜，这样，才能保证线芯的良好导电性及电缆的安全性。

youdao

It is one of the important ways to use corona-resistant material as insulating material of the wire for inverter-fed motors.

采用耐电晕材料作为变频电机的漆包线绝缘是延长变频电机使用寿命的重要途径之一。

youdao

The thermal resistance of the heating part (temperature sensor) is made of metal wire even double wound on the insulating material on the skeleton.

热电阻的受热部分(感温元件)是用金属丝均匀地双绕在绝缘材料制成的骨架上。

youdao

The fibers are made by rolling conducting and insulating polymer films around a copper wire, which are then heated to about 200 degrees C (about 400 degrees F) and stretched out until soft and elastic.

FORBES: Written by Bryan Nelson