BS EN 61557-6:1998
交流電壓高達 1000 V 和直流電壓高達 1500 V 的低壓配電系統中的電氣安全用于保護措施的測試、測量或監控的設備 TT、TN 和 IT 系統中的剩余電流裝置 (RCD)
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring ormonitoring of protective measures-Residual current devices (RCD) in TT, TN and IT systems