
Specification for construction and testing of miners' caplamps in relation to the risk of explosion for mines susceptible to firedamp
出版:British Standards Institution

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Comprise of a headpiece, connecting cable and rechargeable cells in a battery container and are intended to minimise the risk of an explosion of the surrounding atmosphere in mines susceptible to firedamp.
? British Standards Institution 2013
EN 50033:1991 - Identical