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    2. 技術文檔

      • 18
        FEB
        Data: 11 Feb, 2014
        Medium and high-voltage power cables, in circuits over 2000 volts, will have a shield layer of copper or aluminum tape or conducting polymer. If an unshielded insulated cable is in contact with earth
      • 18
        FEB
        Data: 11 Feb, 2014
        Electrical cables may be made more flexible by stranding the wires. In this process, smaller individual wires are twisted or braided together to produce larger wires that are more flexible than solid

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