| 摘要 |
In order to make switchgear equipped with a busbar system for high voltages/current strengths less space-consuming, and to simplify the jointing and connection of the busbars and therewith also simplify manufacture and assembly of the busbar system, the busbars of the system have been given the form of tubes. A tubular cylindrical busbar is jointed/connected with the aid of a conductive contact element (9) in the form of a ring-shaped coil spring located between the insertion end (6) of one tube and an insertion end (7) of an adjacent tube. As the insertion end carrying the spring is inserted into a receiving end of an adjacent tube when joining two tubes together, the spring is compressed and remains compressed while exerting a pressure and holding force on the two tube ends. The voltage and current through tubular busbars that have been jointed with the aid of said springs are affected minimally by the springs, because each turn of the coil spring provides several points of contact with each tube end, therewith providing essentially loss-free electrical transmission. |
