| 摘要 |
The invention relates to an under-load dividing switch in which a movable contact (14) is intended to cooperate with a fixed contact (18) housed at the base of an insulating cup (19) equipped with a shutter (20, 21) for closing the cup opening so that the fixed contact is prevented from undergoing any accidental contact and the component parts subjected to tension are segregated also when the dividing switch is open, the control of the shutter being associated to the earthing control (28, 27, 25, 26, 24) of the movable contact (14) of the open dividing switch. |
