BS EN 61557-13-2011
低压配电系统小于1,000 V交流和1,500 V 直流用电安全.保护措施的测试,测定或监控用设备.手提式和用手操作的电流夹钳和控和泄漏电流测定用传感器
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. Hand-held and hand-manipulated current clamps and sensors for measurement of leakage currents in