IEC 61557-8:2014
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8部分: IT系統用絕緣監測設備. 推薦的水平標準
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 8: Insulation monitoring devices for IT systems - Proposed Horizontal Standard