Power cable has two types called round cable and flat cable, and power cable consist of conductor, insulating layer, protective layer, barrier layer and armored layer. Power cable has different specification according to different efficiency of motor and different condition of well. And the power cable can be divided into low temperature and high temperature depends on the anti-temperature. According to voltage, there are grade of 3kV and 6kV. And the cable can use galvanized steel, stainless steel or Monel steel to avoid corrosion.
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