To drain off stray voltage, a metallic defend are going to be placed above the "semicon." This defend is intended to "make Risk-free" the cable by pulling the voltage on the surface of your insulation down to zero (or at the very least beneath the OSHA Restrict of fifty volts). This metallic defend can include a thin copper tape, concentric drain w

For greater voltages the oil may very well be held under pressure to stop formation of voids that could let partial discharges in the cable insulation. Liquid or gasoline filled cables remain used in distribution and transmission programs these days. Cables of ten kV or greater could possibly be insulated with oil and paper, and they are operate

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