PREN 50849 : DRAFT 2014被替代
SOUND SYSTEMS FOR EMERGENCY PURPOSES
出版：European Committee for Standards - Electrical
專家解讀視頻
基本信息
標準編號： PREN 50849 : DRAFT 2014
標準類別：Draft
出版單位：European Committee for Standards - Electrical
標準頁數：0
標準簡介
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.
替代本標準的新標準
