標準號：BS EN 61557-7-2007
中文標準名稱：1000 V交流和1500 V直流低壓配電系統電氣安全性.保護措施測試、測量或監測設備.相序
英文標準名稱：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 - Phase sequence
標準類型：K09
發布日期：2007/6/29 12:00:00
實施日期：2007/6/29 12:00:00
中國標準分類號：K09
國際標準分類號：17.220.20
引用標準：IEC 60417;IEC 61010-3-031;IEC 61557-1
適用范圍：This part of IEC 61557 specifies the requirements for measuring equipment applied to testingthe phase sequence in three-phase distribution systems. Indication of the phase sequence maybe mechanical, visual and/or audible.This part of IEC 61557 does not apply to ancillary measuring equipment for other quantities, forexample voltage testers comprising an additional phase sequence indicator. It does not applyto monitoring relays.NOTE Phase lamps are not considered to be voltage testers.