| 摘要 |
To extend the life of electric discharge and enhance the characteristic of electric discharge in the life test in a gas filled switching electric discharge tube. A gas filled switching electric discharge tube comprises: a cylindrical body (1) made of insulating material; two electrodes (2, 3) for airtightly closing both ends of the cylindrical body; an electric discharge gap, an airtightly closed space formed in the cylindrical body including the electric discharge gap being filled with gas; metallized faces formed on both end faces of the electrodes of the cylindrical body; first trigger wires (10a, 10b) formed on an inner wall face of the cylindrical body, connected with the metallized faces; and second trigger wires (10c) formed on the inner wall face of the cylindrical body, not connected with the metallized faces, wherein the first electrode face and second electrode face are plated with copper or silver.
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