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BS 7443:1991被替代
Specification for sound systems for emergency purposes
出版：British Standards Institution
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基本信息
標(biāo)準(zhǔn)編號： BS 7443:1991
發(fā)布時間：1991/6/28 0:00:00
標(biāo)準(zhǔn)類別：Standard
出版單位：British Standards Institution
標(biāo)準(zhǔn)頁數(shù)：18
標(biāo)準(zhǔn)簡介
Characteristics and methods of test for emergency broadcast sound systems for indoor or outdoor. Includes environmental conditions, marking symbols, installation and safety requirements, and an automatic system for checking correct functioning.
標(biāo)準(zhǔn)備注
? British Standards Institution 2013
Amendment notes:
AMD 7675 published 15 June 1993
替代本標(biāo)準(zhǔn)的新標(biāo)準(zhǔn)
等同采用的國際標(biāo)準(zhǔn)
IEC 60849 Ed. 2.0 - Similar
