| 摘要 |
FIELD: electricity. ^ SUBSTANCE: invention relates to a module of low, medium or high voltage, comprising at least one short-circuiting device, in which a movable contact may be shorted on a fixed contact. Along the trajectory of movable contact (50) movement there are at least two separate vacuum areas or vacuum volumes located (60, 100). ^ EFFECT: prevention of breakthrough at rated voltage. ^ 18 cl, 1 dwg |
