| 摘要 |
Medium voltage tripole earthing switch, comprising an earthened bracket, to which bracket insulators with fixed contacts and connecting clamps are attached, a drive shaft sitting in the bracket, to which movable earthing switch contacts are attached, characterised in that the drive shaft (5) is isolated from the bracket (1) on at least one side, outside the section between the end poles, while on the other side, outside the shaft section between the end poles, the shaft is earthened, thus creating a galvanic connection with the earthened bracket.<IMAGE>
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