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.

Abstract: In a bus conduit electrical distribution system in which the conduit is normally of U cross-section with shallow U cross-sectional cover over it, the system has special joint setups in which both the conduit and the cover have double members lying one on top of the other in an overlapping manner and capable of assuming longitudinally contracted and longitudinally extended relative positions in relation to each other. The bus bars overlap at their ends and have deep slots coming in from their ends to give them a deep U shape from the longitudinal standpoint in such joint setups. In the interior of the joint setups there are disc-shaped insulating spacers with interfitting circular projections and preferably there are also additional longitudinally elongated insulating spacers. In another form of joint setup which will be used for other joints in the same system, one of the overlapping bus bars will take a hook shape.

Abstract: The invention relates to single, paired opposite phased and multiple stacked insulated flexible or rigid bus bar electrical conductors of copper or aluminum assembled side by side (optionally in a factory or at installation site) as high current density circuits into open trays of substantial length and covers to totally enclose a heat transfer tray co-extensive with the tray and having clamps extending across the tray to secure the cover to the tray and urging the cover upon conductors or conductor joints in the tray by tightening single bolts per clamp. The system includes also making operable end-to-end overlap compression circuit joints of bus bar conductors simultaneously with one or more single bolt clamps for each single, paired phase and multiple stack, electrically insulated apart and supported within the metal tray.

Abstract: The invention relates to single, paired opposite phased and multiple stacked insulated flexible or rigid bus bar electrical conductors of copper or aluminum assembled side by side (optionally in a factory or at installation site) as high current density circuits into open trays of substantial length and covers to totally enclose a heat transfer tray co-extensive with the tray and having clamps extending across the tray to secure the cover to the tray and urging the cover upon conductors or conductor joints in the tray by tightening single bolts per clamp. Also, the invention involves making externally operable end to end overlap compression circuit joints of bus bar conductors simultaneously with one or more single bolt clamps for each single, paired phase and multiple stack, electrically insulated apart and supported within the metal tray.