| 摘要 |
A high current switch includes first and second contact plates, each having a contact surface. The contact plates are moved between a closed position with the contact surfaces in contact and an open position with the contact surfaces separated. An electric bridge has opposite ends connected to the contact plates and spans the contact surfaces. During opening of the switch, the electric bridge, in the form of a fuse, remains integral and provides a secondary electrical connection between the contact surfaces, thus preventing arcing therebetween. Upon complete opening of the switch, the electrical bridge ruptures.
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