General
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General
The variable cross-section melt made of pure silver sheet (or silver wire winding)is soldered with low-temperature tin and packaged in afusion tube made of high- strength porcelain.The fusion tube is flled with chemically treated and specially processed Process-treated high-purity quartz sand isused as the arc-extinguishing medium,and the two ends of the melt are firmly electrically connected with the contacts byelectric welding

General
The variable cross-section melt made of pure silver sheet (or siver wire winding)is soldered with low-temperature tin and packaged in a fusion tube made of high- strength porcelain.The fusion tube is filled with chemically treated and specially processed Process-treated high-purity quartz sand isused as the arc-extinguishing medium,and the two ends of the melt are firmly electrically connected with the contacts byelectric welding.