Screw-in hinge for earthed switch box doors, equipment coverings

摘要

The hinge has two metal parts (16,18) pivotably connected together with a hinge pin (56) with one end (52) mechanically fixed in and electrically connected to one part (18) and the other end (70) or another region protruding into the other part (16). An electrically conducting spring device (168) connects the metallic contact surfaces of the pin, or of a part electrically connected to it, mechanically and electrically to corresp. metallic contact surfaces of the other hinge part in all operating positions of the hinge