IEC 61557-15:2014
小于等于1000 V交流電以及1500 V直流電低壓配電系統的電氣安全. 保護措施的測試, 測量或監測設備. 第15部分: IT系統中絕緣監測裝置和IT系統中絕緣故障定位設備的功能性安全要求
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. equipment for testing, measuring or monitoring of protective measures - Part 15: Functional safety requirements for insulation monitoring devices in IT systems and for