PREN 50849:2011被替代
Sound Systems For Emergency Purposes
出版：European Committee for Standards - Electrical
专家解读视频
基本信息
标准编号： PREN 50849:2011
发布时间：2011/10/1 0:00:00
标准类别：Draft
出版单位：European Committee for Standards - Electrical
标准页数：24
标准简介
Gives 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.
替代本标准的新标准
等同采用的国际标准
NEN EN 50849:2011 - Identical
