低压配电系统是现代工业生产和生活中必不可少的一部分,但是在使用过程中,由于各种原因,可能会出现绝缘故障,导致电气设备的损坏和人身安全的威胁。因此,为了保障低压配电系统的安全运行,需要对其进行测试、测量和监测,以及对绝缘故障进行定位和处理。
IEC 61557-9:2014/COR2:2017标准规定了绝缘故障定位设备的技术要求、性能要求、测试方法和标志等内容。该标准要求绝缘故障定位设备应具有以下特点:
1.能够检测低压配电系统中的绝缘故障,并能够准确地定位故障点;
2.能够适应不同类型的低压配电系统,包括交流电压不超过1000V和直流电压不超过1500V的系统;
3.能够满足不同的测试、测量和监测需求,包括绝缘电阻测试、绝缘故障定位、绝缘监测等;
4.具有良好的可靠性、稳定性和安全性,能够在恶劣的环境条件下正常工作;
5.符合相关的国际和国家标准要求。
IEC 61557-9:2014/COR2:2017标准的实施,可以有效提高低压配电系统的安全性和可靠性,减少绝缘故障对设备和人员的危害。同时,该标准也为绝缘故障定位设备的设计、制造和使用提供了技术指导和标准化的依据。
相关标准
- IEC 61557-1:2007 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 1: General requirements
- IEC 61557-2:2007 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 2: Insulation resistance
- IEC 61557-3:2007 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 3: Loop impedance
- IEC 61557-4:2007 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 4: Earth electrode resistance and soil resistivity
- IEC 61557-5:2007 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 5: Resistance of earth connection and equipotential bonding