Aparatura budowy przeciwwybuchowej dedykowana do zasilania wysokowydajnych systemów odstawy urobku w podziemnych zakładach górniczych wydobywających węgiel kamienny

The paper presents power supplying and switching equipment with explosion-proof design dedicated to high-performance belt conveyors of the main haulage system in an underground mining enterprise dealing with extraction of hard coal. The acquired experience and suitability of the solutions are presented on the example of the system operated at the Hard Coal Mine ‘Borynia-Zofiówka’ where two-speed motors are used to drive belt conveyors designed for regional haulage systems of the colliery.