INTERLOCK MECHANISM FOR GROUNDING SWITCH OF DRAWER TYPE ELECTRICAL APPARATUS UNIT

摘要

PROBLEM TO BE SOLVED: To provide an interlock mechanism for a grounding switch of a drawer type electrical apparatus unit which cannot perform opening/closing operation of the grounding switch if mechanically and electrically safe requirements are not arranged. SOLUTION: An interlock mechanism for a grounding switch of this drawer type electrical apparatus unit is provided with a means which converts a turning of a lock lever into an insert/withdraw operation of a stopper pin and a means which constitutes interlock based on making a driving lever abut on top and bottom faces of the stopper pin, by engaging the lower end of the lock lever with the horizontally movable stopper pin which is sufficiently strongly held.