cap and pin insulator

例句：

1. 1.The cap and pin insulator is an important part of the electrical system.
   绝缘帽和绝缘夹是电气系统的重要组成部分。
2. 2. The insulator was designed to prevent electrical short circuits.
   绝缘器的设计是为了防止电气短路。
3. 3.The cap and pin insulator is used to protect electrical equipment from damage.
   绝缘帽和绝缘夹用于保护电气设备免受损坏。