Switchgear conductors and mounting arrangements therefor

Details Switchgear conductors and mounting arrangements therefor Switchgear conductors and mounting arrangements therefor

1998-11-09

2000-03-21

Thompson, Gregory

Electricity: electrical systems and devices

Housing or mounting assemblies with diverse electrical...

For electrical power distribution systems and devices

174 71B, 174129B, 361638, 361649, 439212, H02B 120

Patent

active

060409762

ABSTRACT:
Hollow risers in switchgear are preferably formed by a confronting pair of spaced apart U-channels. Stab conductors for connecting switching apparatus in the switchgear to the risers have a pair of flat members straddling and secured to the two U-channels by mounts which include backing plates bearing against the inner surfaces of the confronting legs of two U-channels and bolts extending through the stab conductors and U-channel legs and engaging threaded apertures in the backing plates. To accommodate a range of current ratings, the confronting channels can have first and second leg thicknesses t.sub.1 and t.sub.2, which can be different but the outer widths of the channels are all the same. The backing plates have a first surface with a third thickness in one section and a fourth thickness in a second section. This first surface bears against the U-channel legs when the legs are of different thicknesses and t.sub.1 plus t.sub.3 is made equal to t.sub.2 plus t.sub.4. The second face of each backing plate is planar and bears against the inner surface of the legs of the U-channels when t.sub.1 is equal to t.sub.2.

REFERENCES:
patent: 1915918 (1933-06-01), Bostwick
patent: 3786313 (1974-01-01), Coles et al.
patent: 3793564 (1974-02-01), Salvati et al.
patent: 5157584 (1992-10-01), Rowe

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