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

标准号：IEEE C 37.27-2008
中文标准名称：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
英文标准名称：Application guide for low-voltage ac power circuit breakers applied with separately-mounted current-limiting fuses
标准类型：K31
发布日期：2008/12/10 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：K31
国际标准分类号：29.130.20
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
适用范围：This guide applies to low-voltage ac power circuit breakers of the 635 V maximum voltage class withseparately-mounted current-limiting fuses for use on ac circuits with available short-circuit currents of200 000 A (rms symmetrical) or less. Low-voltage ac fused power circuit breakers and combinations offuses 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 (seeNEMA FU-11 and UL 248-1) for use in combination with low-voltage ac power circuit breakers, rated inaccordance with IEEE Std C37.13™ and applied in metal-enclosed low-voltage power circuit breakerswitchgear 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 fusemaximum voltage ratings.