In addition, insulation aging takes most of proportion of HV equipment accident.Therefore, to keep HV equipment in good condition, firstly, it should keep insulation in good condition.

• 而在高压设备所发生的故障当中,绝缘失效要占很大的比重,因此,保障高压设备的安全运行,就要首先保障设备绝缘的良好。