Patent ID: 7718895

Claim:
A device for electrical connection of two sections of a pre-fabricated electrical canalization, said electrical canalization comprising a certain number of conducting bars extending substantially parallel to one another, comprising a first set of at least one portion of said bars, and a second set of at least another portion of said bars, said portions of bars of the first set at least partially overlapping respectively the portions of bars of the second set, said portions of bars of the first set of bars being in electrical contact respectively with the portions of bars of the second set of bars over a contact zone, the two sets of portions of bars being movable with respect to one another to modify the overlap length of the portions of bars and thereby the length of the connection device, and means for securing the two sets of portions of bars in a selected adjustment position, the bars of one of the sets of portions of bars being secured to at least one rod, and the bars of the other set of portions of bars each comprising at least one aperture for operating in conjunction with said at least one rod to enable relative movement between the portions of bars of the first and second sets of bars, and a device comprising at least one roller around the at least one rod at the level of the electrical junction between two portions of bars for reducing friction between the portions of bars and the rod.