| 摘要 |
A device for interrupting an electrical alternating current, which is driven by a high voltage, includes contact pieces that are connected to conductors and placed inside a contact housing. The conductors are guided in an at least partially displaceable manner, and the contact pieces can be transferred from a contact position into a non-contact position by means of a drive and of drive kinematics. The aim of the invention is to provide a switching device of the aforementioned type with which even higher currents can also be controlled. To this end, a heat tube with a fluid-tight heat tube housing is provided, which has an evaporation area, a condensation area, and a capillary structure extending between the evaporation area and the condensation area and being thermally coupled to both of them. The heat tube has a heat transfer means, and the evaporation area is connected in a heat-conducting manner to one of the conductors or to one of the contact pieces.
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