Method for fastening a fuse-switch to the busbar bridge, preferably in the low voltage switchgear

摘要

The subject of the invention is a system for attaching a fuse-switch disconnector to a busbar, especially in a low-voltage switchgear, consisting of a busbar made of three rigid electric conductors of rectangular cross-section ( 1 ) that have recesses ( 2 ) and ( 2 ' ) at the front and rear wall, parallel to the longitudinal axis of the conductor ( 1 ). The heads and bases of step bolts ( 3 ) and ( 3' ) are inserted into recesses ( 2 ) and ( 2 ' ). The bolt ( 3 ), whose head is inserted in the recess ( 2 ) in the conductor ( 1 ) from the front side, connects the fuse-switch disconnector ( 4 ) with the conductor ( 1 ), while the bolt ( 3 ' ), whose head is inserted in the recess ( 2 ' ) in the rear the wall of the conductor, connects the conductor ( 1 ) to the busbar ( 6 ).