| 摘要 |
Three pole columns belong to a pressure gas power-switch pole, arranged on a vehicle as a triangle. Three unipolar switches (2,2A) are provided, having their own switch drives (22). Of these each is pivotable about a horizontal pivot axis at right anqles to the vehicle travel direction, out of its vertical operating position into a transport position nearly parallel to the travel direction. At each switch an input-side connection is provided, the two switch columns on the sides of the vehicle having connections in their central regions, and the central column having the connection at the top. The pivot action may include the switch drive. The central switch may be to the rear of the side switches. In the transport position protection may be provided for the columns. USE/ADVANTAGE - E.g. for large scale building site. Easier to transport.
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