BS 5501-4(1977) : 1977被替代
ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - POWDER FILLING 'Q'
出版：British Standards Institution
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基本信息
標準編號： BS 5501-4(1977) : 1977
發布時間：1977/1/1 0:00:00
標準類別：Standard
出版單位：British Standards Institution
標準頁數：20
標準簡介
Describes construction and testing of powder-filled electrical apparatus, protection 'q', intended for use in potentially explosive atmospheres. Applies to electrical apparatus having a voltage less than or equal to 6600 V and having no moving parts in direct contact with the filling material.
替代本標準的新標準
