I.S. EN 50849:2017現行
Sound Systems for Emergency Purposes
出版：National Standards Authority of Ireland
專家解讀視頻
基本信息
標準編號： I.S. EN 50849:2017
發布時間：2017/3/21 0:00:00
標準類別：Standard
出版單位：National Standards Authority of Ireland
標準頁數：30
標準簡介
Defines the performance requirements for sound systems which are primarily intended to broadcast information for the protection of lives within one or more specified areas in an emergency.
