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Tests of flame-proof properties of supply-control box for a floor-loader operating in underground mine workings, where methane and/or flammable dust explosion hazard occurs are presented. The tests included, among others, a determination of the explosion pressure, the enclosure strength to the pressure and the test of non-transfer of internal explosion. The tests enabled to localized the components, which required some improvements regarding their mechanical strength but also confirmed safety of the final design. The enclosure of the supply-control equipment of a floor-loader is designed within the HYDKOM 75 project co-financed by the National Centre for Research and Development.

Tests of flame-proof properties of supply-control system for a mining floor-loader