Shunt capacitors for a.c. power systems having a rated voltage above 1 000 V - Part 1: General
适用范围:IEC 60871-1:2014 is applicable to both capacitor units and capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems having a rated voltage above 1 000 V and ...
发布日期:2014-05-22 实施日期:2014-05-22
Surge arresters. Part 8: Metal-oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kV (IEC 60099-8:2011); German version EN 60...
Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems
适用范围:IEC 60099-4:2014 applies to non-linear metal-oxide resistor type surge arresters without spark gaps designed to limit voltage surges on a.c. power circuits with Us above 1 kV. This third edition cancel...
发布日期:2014-06-30 实施日期:2014-06-30
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing,measuring or monitoring of protective measures. Part 15:Functional safety requirements fo...
适用范围:IEC 61557-15:2014 specifies requirements related to functional safety and is based on the IEC 61508 standard series for the realization of Insulation Monitoring Devices (IMD) as specified in IEC 61557-...
实施日期:2014-02-12
Auxiliaries for lamps. Starting devices (other than glow starters). Performance requirements
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 9: Equipment for insulation fault ...
实施日期:2009-11-01
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