IEEE C 37.27-2008
分开安装的限流熔断器的低电压交流电源断路器的应用指南

Application guide for low-voltage ac power circuit breakers applied with separately-mounted current-limiting fuses

IEEE C 37.27-2008 发布历史

This guide applies to low-voltage ac power circuit breakers of the 635 V maximum voltage class with separately-mounted current-limiting fuses for use on ac circuits with available short-circuit currents of 200 000 A (rms symmetrical) or less. Low-voltage ac fused power circuit breakers and combinations of fuses and molded-case circuit breakers are not covered by this guide. This guide sets forth recommendations believed essential for the selection of current-limiting fuses (see NEMA FU-11 and UL 248-1) for use in combination with low-voltage ac power circuit breakers, rated in accordance with IEEE Std C37.13™ and applied in metal-enclosed low-voltage power circuit breaker switchgear in accordance with ANSI/IEEE Std C37.20.1™. NOTE—The combination of a circuit breaker and separately mounted fuses is limited to 600 V based on fuse maximum voltage ratings.

IEEE C 37.27-2008由美国电气电子工程师学会 US-IEEE 发布于 2008-12-10。

IEEE C 37.27-2008 在中国标准分类中归属于: K31 低压配电电器，在国际标准分类中归属于: 29.130.20 低压开关装置和控制器。

IEEE C 37.27-2008 发布之时，引用了标准

• ANSI C37.16 低压电力断路器和交流电力电路保护器的优选额定值、相关要求和应用建议
• ANSI C37.50 开关设备.封装式低压交流电力线路断路器.测试规程*， 2012-01-01 更新
• IEEE C37.13 *， 2015-12-05 更新
• IEEE C37.20.1 铠装低压电源断路器开关设备（1000伏及以下，3200伏及以下）*， 2015-03-26 更新
• IEEE C37.26 低压(1000 V AC或更低)电感试验电路功率因数的测量方法指南*， 2014-08-21 更新
• IEEE C37.59 电源开关设备的转换要求
• IEEE 141 IEEE 141-1993(R1999)
• IEEE 241 IEEE 241-1990(R1997)
• IEEE 242 工业及商业电力系统保护及配合用推荐规程
• UL 248-1 低压熔断器.第1部分:一般要求*， 2011-05-13 更新

* 在 IEEE C 37.27-2008 发布之后有更新，请注意新发布标准的变化。

IEEE C 37.27-2008的历代版本如下：

• 2008年12月10日 IEEE C 37.27-2008 分开安装的限流熔断器的低电压交流电源断路器的应用指南

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标准号

IEEE C 37.27-2008

发布日期

2008年12月10日

实施日期

废止日期

无

中国标准分类号

K31

国际标准分类号

29.130.20

发布单位

US-IEEE

引用标准

ANSI C37.16 ANSI C37.50 IEEE C37.13 IEEE C37.13.1 IEEE C37.20.1 IEEE C37.26 IEEE C37.59 IEEE C37.100 IEEE 141 IEEE 241 IEEE 242 NEMA FU-1 UL 248-1

被代替标准

IEEE C 37.27-1987

适用范围

This guide applies to low-voltage ac power circuit breakers of the 635 V maximum voltage class with separately-mounted current-limiting fuses for use on ac circuits with available short-circuit currents of 200 000 A (rms symmetrical) or less. Low-voltage ac fused power circuit breakers and combinations of fuses and molded-case circuit breakers are not covered by this guide. This guide sets forth recommendations believed essential for the selection of current-limiting fuses (see NEMA FU-11 and UL 248-1) for use in combination with low-voltage ac power circuit breakers, rated in accordance with IEEE Std C37.13™ and applied in metal-enclosed low-voltage power circuit breaker switchgear in accordance with ANSI/IEEE Std C37.20.1™. NOTE—The combination of a circuit breaker and separately mounted fuses is limited to 600 V based on fuse maximum voltage ratings.