insulator rating number

例句：

1. 1.The insulator rating number is crucial for the safe operation of the electrical system.
   绝缘子额定值对于电力系统的安全可靠运行至关重要。
2. 2. The manufacturer provided a detailed list of insulator ratings for different voltage levels.
   制造商提供了不同电压等级的详细绝缘子额定值清单。
3. 3. The engineer must ensure that the insulator rating meets the standards set by the relevant authorities.
   工程师必须确保绝缘子的额定值符合相关权威机构设定的标准。