insulation testing apparatus

例句：

1. 1.The insulation testing apparatus was used to measure the electrical resistance of the wire.
   绝缘测试设备被用来测量电线的电阻。
2. 2.The engineer used the insulation testing apparatus to check the integrity of the insulation layer.
   工程师使用绝缘测试设备来检查绝缘层是否完整。
3. 3. The insulation testing apparatus detected a fault in the power cable, which led to an immediate repair.
   绝缘测试设备检测到电缆中的故障，并立即进行了修复。