Grounding spring for bus duct plug-in units

Details Grounding spring for bus duct plug-in units Grounding spring for bus duct plug-in units

1981-07-29

1983-12-20

Desmond, Eugene F.

Geometrical instruments

339 22B, H01R 466

Patent

active

044213670

ABSTRACT:
A bus duct assembly characterized by a bus duct section having top and bottom walls and opposite side walls forming a housing, and a plurality of multi-phase bars supported within the housing. A tap box wall having a plurality of terminals and being mounted on top of the bus duct thereby connecting the bus bars with the terminals. A ground spring connected to the tap box for maintaining continuous electrical ground between the tap box enclosure and the bus duct housing before the terminals are energized by the bus bars and after the plurality of terminals are deenergized from the bus bars.

REFERENCES:
patent: 4082393 (1978-04-01), Gamble
UL 857, "Standard for Busways and Associated Fittings", Underwriters Laboratories, Inc., Mar. 17, 1980.

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