IEC 61557-7-2007 1000V交流和小于1500V直流低压配电系统中的电气安全性.防护措施的试验、测量和监控设备.第7部分:相序

标准号：IEC 61557-7-2007
中文标准名称：1000V交流和小于1500V直流低压配电系统中的电气安全性.防护措施的试验、测量和监控设备.第7部分:相序
英文标准名称：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 7: Phase sequence
标准类型：N22;K40
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：N22;K40
国际标准分类号：17.220.20;29.240.01
引用标准：IEC 60417;IEC 61010-3-031;IEC 61557-1
适用范围：This part of IEC 61557 specifies the requirements for measuring equipment applied to testing the phase sequence in three-phase distribution systems. Indication of the phase sequence may be mechanical, visual and/or audible.This part of IEC 61557 does not apply to ancillary measuring equipment for other quantities, for example voltage testers comprising an additional phase sequence indicator. It does not apply to monitoring relays.NOTE Phase lamps are not considered to be voltage testers.