IEC 61992-5-2006
轨道交通.固定装置.直流开关装置.第5部分:直流系统中的特定用途用电涌放电器和低压限制器

Railway applications - Fixed installations - DC switchgear - Part 5: Surge arresters and low-voltage limiters for specific use in d.c. systems

标准号

IEC 61992-5-2006

发布日期

2006年02月

实施日期

废止日期

无

中国标准分类号

S35;L22

发布单位

国际电工委员会

被代替标准

IEC 9/890/FDIS-2005

适用范围

Clauses 4, 5 and 6 of this part of IEC 61992 cover particular requirements for surge arresters (following named arresters) for specific use in fixed installations of d.c. traction systems. These are surge arresters consisting of one or more non-linear resistors which may be in series with single or multiple spark gaps. Low-voltage limiters are covered under Clause 7. These are protective devices mainly used in fixed installations of d.c. traction systems to connect certain portions of the circuit, when, owing to an abnormal situation, the voltage across the device exceeds a predetermined limited value. They may be associated with other devices such as contactors for self-restoring arrangements. They are not used in general to provide surge protection. The following are the main uses of Low-Voltage Limiters (LVL): – connection to the rail of metallic masses; – protection of rail circuits; – earthing of rails in the substation; – protection of cathodic circuits; – protection of cable shields.

IEC 61992-5-2006系列标准

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