Electricity: conductors and insulators – Conduits – cables or conductors – Combined
Patent
1980-05-19
1981-06-09
Askin, Laramie E.
Electricity: conductors and insulators
Conduits, cables or conductors
Combined
H02G 508
Patent
active
042726468
ABSTRACT:
The bus bars inside the protective conduit sheathing are on a number of different levels, one for each phase. They lie flat with the wide cross-sectional dimensions horizontal and side-by-side to each other in a plurality of groups of preferably three segments each. Within each group there is preferably insulation around each of the three bus bars and each group of three has insulation around it as a group. Within the joint box, the bared ends of the bus bars stop on a line substantially short of the bared ends of the next set of bus bars and a single conductive plate of thickness the same as that of each of the bus bars, which are themselves of the same thickness to each other, spans the gap between the bus bars connecting the two sets of bus bars to each other. A hole in the center of the connector and between the ends of the bus bars is in registry with holes in insulating plates between the bus bars and outside of them, and these insulating plates have interfitting concentric rings--one protruding in one direction and a pair protruding in the other direction into which the first interfits, to provide a suitable extended insulation path, at the same time also aiding assembly by their registry. A single bolt passes through the entire setup at this hole by means of the hole and joins everything together with the use of one nut.
REFERENCES:
patent: 3786394 (1974-01-01), Koenig et al.
patent: 4009920 (1977-03-01), Hicks, Jr. et al.
Askin Laramie E.
Broadhill Development Corporation
Chovanes Eugene
Jackson Edward Lovett
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