Adjustable electrical busbar joint

摘要

An adjustable length busway joint for coupling a first and a second busway section, the first and second busway sections being longitudinally offset, is disclosed. The busway joint includes a first plurality of splice plates having a first splice plate first retaining portion, and a second plurality of splice plates disposed to overlap a portion of a corresponding splice plate of the first plurality of splice plates to form an electrical joint. Each splice plate of said second plurality of splice plates defines a splice plate first adjustment portion substantially longitudinally aligned with the first plurality of splice plates and disposed to overlap a portion of a corresponding first splice plate first retaining portion. A first positioning member is operably disposed in the first splice plate first retaining portion and said second splice plate first adjustment portion. The first and said second pluralities of splice plates are arranged for a longitudinal movement with respect each other between a first compressed position and a second extended position. The busway joint further includes a third plurality of splice plates having a third splice plate first retaining portion. Each splice plate of the second plurality of splice plates overlaps a portion of a corresponding splice plate of the third plurality of splice plates to form an electrical joint. Each splice plate of said second plurality of splice plates includes a splice plate second adjustment portion substantially longitudinally aligned with the third plurality of splice plates and overlaps a portion of a corresponding third splice plate first retaining portion. A second positioning member is disposed in the splice plate second adjustment portion and the third splice plate first retaining portion. The third and second pluralities of splice plates are arranged for a longitudinal movement with respect each other between a third compressed position and a fourth extended position.