High Voltage Direct Current Electricity – technical ...
Source: Prysmian Cables & Systems Ltd Figure 5: XLPE cable. XLPE insulation is made by extruding the polymer over the cable core, and is the technology now generally used for AC transmission cables. XLPE cables are available for HVDC voltages up to 320kV, this could
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www.nationalgrid.comvoltages above 33kV and has been replaced by XLPE. MIND cable is now being used for DC cable at higher voltages. Page 06. 3. Underground cable technologies continued Gas insulated lines An alternative to fluid filled or XLPE cable is the use of gas insulated lines (GIL). This system
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