PRYSMIAN GROUP | 525 kV HVDC P-LASER DATASHEET | Land CONDUCTOR Bare aluminum wires filled with water swellable tapes, with nominal cross-section area up to 4000 mm². Copper is also available. METALLIC SHEATH The smooth metallic sheath is constituted by a longitudinally welded aluminum tape (WAS) applied over the outer semiconductive layer and water barrier, to provide water tightness, mechanical protection and to carry fault currents. INNER SEMI-CONDUCTIVE LAYER Water-swellable tapes and extruded semiconducting screen layer, to have a smooth electrical interface with insulation. OUTER SEMI-CONDUCTIVE LAYER Water-swellable tapes and extruded semiconducting screen layer, to have a smooth electrical interface with insulation. OUTER SHEATH An extruded layer of red or black colored high density polyethylene compound is provided over the metallic sheath. An extruded black semi conductive layer can be applied over the outer sheath for after installation tests. Flame retardant and low smoke versions are available. Dimensional data for 3500 mm2 aluminum Electrical data for 3500 mm2 aluminum Indicative diameter 155 mm Indicative cable weight 25 kg/m Ohmic resistance 0.0081 Ω/km Coaxial inductance 0.13 mH/km Capacitance 0.25 µF/km INSULATION P-Laser, based on HPTE insulation material which is fully recyclable and compatible with existing cable accessories. INTEGRATED FO CABLE Up to 4 integrated fiber optic elements for monitoring purposes, able to accommodate both multi-mode and single-mode fibers.
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