Influence of cobalt-molybdenum-alloy coating on the surface of copper electrodes upon electric strength of unconditioned vacuum-insulation systems
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- Category: Molybdenum knowledge
- Published on 20 August 2013
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The paper presents the results of investigations of electric strength at AC voltage (50 Hz) of vacuum insulation systems which were not subject to conditioning. Plane electrodes with rounded-off edges of Rogowski's profile were used in the investigations. The electrodes, having diameters of 50 mm, were made of OFHC copper. The paper shows the influence of fundamental factors defining the conditions of a vacuum insulation system on its electric strength, such as: the value of pressure (within the scope of approximately 1 mPa - 1 Pa) and at constant value pressure approximately 1 mPa, the length of vacuum gap, and the pressure of cobalt-molybdenum alloy layer coating the surfaces of the electrodes.
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