| 摘要 |
An electric pole for a low-voltage power circuit breaker, comprising:a fixed contact and a movable contact which can be mutually coupled/uncoupled;at least two conducting elements, suitable to electrically connect the movable contact to a power supply grid, the conducting elements being arranged so that the electric currents flowing through them are equally orientated;means for mechanically supporting and actuating the movable contact; andat least one insulating element which is interposed between the conducting elements and is suitable to contrast, by friction with the conducting elements, electrodynamic repulsion forces that are generated between the fixed contact and the movable contact during opening in short-circuit operating conditions.
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