| 摘要 |
Busbars (21) are installed with busbar holders (11) which engage behind and over the busbar foot (211). Since the busbars (21) work mechanically, frictional wear occurs in this case between the busbar foot (211) and the claws which engage over the busbar foot (211) and form a component of the busbar holder (11). In order to reduce the wear, the claws which engage over the busbar foot (211) are replaced by rotationally-moving rollers (217, 218) on which the busbar foot (211) is supported. <IMAGE>
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