PREN 50849 : DRAFT 2014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 : DRAFT 2014
标准类别：Draft
出版单位：European Committee for Standards - Electrical
标准页数：0
标准简介
Describes 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
