Electrical busway with improved joint construction |
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| 申请号 | US46653374 | 申请日 | 1974-05-03 | 公开(公告)号 | US3882265A | 公开(公告)日 | 1975-05-06 |
| 申请人 | GEN ELECTRIC; | 发明人 | JOHNSTON FRANK C; KRAUSE WERNER A; | ||||
| 摘要 | Plural busway sections each include flat, elongated, mutually insulated busbars in stacked assembly. The ends of the stacked busbars terminate in longitudinally staggered, complementary scarf lap joint halves. A housing having a base and a cover encloses the stacked busbars. A series of clamps press together corresponding busbar terminations of two sections aligned end-toend to perfect scarf lap joints electrically interconnecting the sections. The base of one section and the cover of the other overlap to enclose the busbar joints. | ||||||
| 权利要求 | 1. Electrical busway comprising, in combination: A. plural busway sections, each including 1. a plurality of flat, elongated busbars arranged in stacked relation, corresponding one ends of said busbars formed with scarf lap joint terminations arrayed in longitudinally staggered relation and corresponding other ends of said busbars formed with complementary scarf lap joint terminations likewise arrayed in longitudinally staggered relation, 2. insulation insulating said busbars one from the other, said busbar terminations being devoid of said insulation, and 3. a housing enclosing said stacked busbars along the mid lengths thereof intermediate said busbar terminations, 4. said busway sections aligned in appropriate end-to-end relation with said scarf lap joint terminations of corresponding ones of said busbars in said aligned sections mating to effectuate electrical connections therebetween; and B. means maintaining said busbar electrical connections between said aligned busway sections. 2. insulation insulating said busbars one from the other, said busbar terminations being devoid of said insulation, and 2. an elongated cover terminating short of said busbar terminations at said one end of said busway section and overlapping said busbar terminations at said other end of said busway section; D. whereby, upon alignment of two busway sections in appropriate end to end relation, said scarf lap joint terminations of corresponding ones of said busbars in the aligned sections mate to effectuate electrical connections therebetween. 2. The electrical busway defined in claim 1, wherein said housing of each busway section includes: 2. an elongated cover terminating short of said busbar terminations at said one end of said busway section and overlapping said busbar terminations at said other end of said busway section, 3. the overlapping portion of said base at said one end of one aligned section laps the overlapping portion of said cover at said other end of the other aligned section providing housing continuity from section to section. 3. The electrical busway defined in claim 2, which further includes means joining said lapped extending portions of said base and cover. 3. a housing enclosing said stacked busbars along the mid lengths thereof intermediate said busbar terminations, 4. said busway sections aligned in appropriate end-to-end relation with said scarf lap joint terminations of corresponding ones of said busbars in said aligned sections mating to effectuate electrical connections therebetween; and B. means maintaining said busbar electrical connections between said aligned busway sections. 4. The electrical busway defined in claim 3, wherein said maintaining means comprises a plurality of clamps arranged in longitudinally spaced, embracing relation with said lapped extending portions of said base and cover. 5. The electrical busway defined in claim 3, which further includes splice plates secured to said busway sections covering the seams between said bases and between said covers of said aligned busway sections. 6. The electrical busway defined in claim 2, which further includes insulation means insulating said busbar terminations from said extending portions of said cover and base. 7. The electrical busway defined in claim 2, wherein said cover is U-shaped in cross-section having a bridging portion and opposed side skirts enclosing three sides of said stacked busbars, and said base is also U-shaped in cross-section having a bridging portion enclosing the fourth side of said stacked busbars and opposed side skirts, the marginal portions of said cover side skirts overlapping and secured to said base side skirts to complete said housing. 8. An electrical busway section comprising, in combination: A. a plurality of flat, elongated busbars arranged in stacked relation, corresponding one ends of said busbars formed with scarf lap joint terminations arrayed in longitudinally staggered relation and the corresponding other ends of said busbars formed with complementary scarf lap joint terminations likewise arrayed in longitudinally staggered relation; B. insulation insulating said busbars one from the other, said busbar terminations being devoid of said insulation, and C. a housing enclosing said stacked busbars along the mid lengths thereof intermediate said busbar terminations, said housing including 9. The busway section defined in claim 8, wherein coextensive portions of said cover and said base are joined by continuous seam welds. 10. The busway section defined in claim 9, wherein said cover is U-shaped in cross-section having a bridging portion and opposed side skirts enclosing three sides of said stacked busbars, and said base is also U-shaped in cross-section having a bridging portion enclosing the fourth side of said stacked busbars and opposed side skirts, said continuous seam welds being effectuated where the marginal portions of said cover side skirts overlap said base side skirts. 11. The electrical busway defined in claim 8, which further includes insulating members interposed between said stacked busbars and the extending portions of said base and cover. 12. The electrical busway defined in claim 11, which further includes a first splice plate mounted by and extending beyond the extending portion of said base, and a second splice plate carried by and extending beyond the extended portion of said cover. |
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