Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electrical power distribution systems and devices
Patent
1997-08-06
1998-11-03
Thompson, Gregory D.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electrical power distribution systems and devices
174 682, 174 71B, 174 99B, 361639, 361676, H02B 120, H05K 720
Patent
active
058318127
ABSTRACT:
A three-phase electrical distribution system includes an elongate housing of substantially square cross-section and a plurality of frames connected between the top and rear walls of the housing. Each frame includes three sections arranged in a stepped manner to locate and mount one power phase busbar by a standoff insulator near the rear wall, a second power phase busbar forwardly and vertically above the first busbar, and a third power phase busbar located vertically above and forwardly of the other busbars to minimize the cross-sectional housing space while spacing such busbars to prevent arcing therebetween or arcing to the housing or to the frames. The ground and neutral busbars are mounted via insulating standoffs to the bottom wall of the housing forwardly of the power busbars. An access opening is located in the bottom wall at various intervals to provide for hookup of power cables to the busbars via an openable front wall spanning between a pair of adjacent frames. Air vents are provided through the bottom and front walls.
REFERENCES:
patent: 2997627 (1961-08-01), Ellegoud
patent: 3467766 (1969-09-01), Claybourn
patent: 4307304 (1981-12-01), Kovatch et al.
patent: 4866568 (1989-09-01), Eggebrecht et al.
patent: 5124881 (1992-06-01), Motoki
Thompson Gregory D.
Yeager Arthur G.
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