BS EN 61557-6:2007 交流1000V和直流1500V以下低壓配電系統中的電氣安全.防護措施的測驗、測量或監控設備.第6部分:TT、TN和IT系統中剩余電流裝置(RCD)的有效性
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. Effectiveness of residual current devices (RCD) in TT, TN and IT systems