BS EN IEC 61557-11:2022
Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures - Effectiveness of residual current monitors (RCM) in TT, TN and IT systems
发布时间:2022-09-30 实施时间:


低压配电系统是指额定电压不超过1000V交流电和1500V直流电的电力系统。在低压配电系统中,为了保障人身安全和设备的正常运行,需要采取一系列的保护措施。残余电流监测器(RCM)是其中一种常用的保护措施,它可以监测电路中的残余电流,当残余电流超过设定值时,RCM会自动切断电路,以保护人身安全和设备。

BS EN IEC 61557-11:2022 标准规定了在低压配电系统中使用的测试、测量或监测保护措施的设备,特别是残余电流监测器(RCM)的有效性。该标准适用于TT、TN和IT系统。其中,TT系统是指通过地面电极连接到地面的电力系统;TN系统是指通过导体连接到地面的电力系统;IT系统是指没有直接连接到地面的电力系统。

该标准要求对RCM进行测试,以验证其在不同类型的低压配电系统中的有效性。测试包括对RCM的灵敏度、响应时间、误报率等方面进行评估。此外,该标准还规定了测试的方法和要求,以确保测试结果的准确性和可靠性。

BS EN IEC 61557-11:2022 标准的实施可以帮助保障低压配电系统的安全运行,减少电气事故的发生。同时,该标准也为RCM的设计、制造和使用提供了技术指导和参考。

相关标准
- BS EN IEC 61557-1:2019 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. General requirements
- BS EN IEC 61557-2:2019 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. Insulation monitoring devices
- BS EN IEC 61557-3:2019 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. Loop impedance
- BS EN IEC 61557-4:2019 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. Earth electrode resistance and earth insulation resistance
- BS EN IEC 61557-5:2019 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. Resistance of earth connection and equipotential bonding