CABLES AND WIRES - Novkabel

XHEh 91, XHEh 91-AMedium voltage cables with XLPE insulation and additional electricalprotectionStandard: SRPS N.C5.230Nominal voltage U 0 /U: 6/10 kV, 12/20 kV, 20/35 kVTest voltage: 15 kV, 30 kV, 50 kVCONSTRUCTIONKONSTRUKCIIJJAConductor: multi-core copper (XHEh 91) or aluminium (XHEh91-A) compacted conductor class 2, according to SRPS N.C0.015.Inner semi-conductive layer: extruded.Insulation: XLPE compound.Outer semi-conductive layer: extruded.Inner sealing layer: wrapped semi-conductive, waterprooftape, used as bedding for electric protection as well as additionalprotection to the insulation from the break along the screen.Electric protection: wrapped annealed copper wires withcontra-helical annealed copper tape or wrapped copper tape.Sealing layer: wrapped semi-conductive, waterproof tape.Outer sheath: semi-conductive PE compound.Additional electric protection: wrapped tinned copper wires,as single-layer or double-layer: subject to cross-section needed.APPLICATIONFor laying in earth or on supports. The cable bears medium axialtensile strains. In medium-voltage distributing network mains,when the cable is laying in area with high ground conductivity, forprotection of electric power plants from over-voltages caused bylightning or other failures at high-voltage transmission network.Additional electric protection is rated in dependence on the request, i.e., exploit conditions. Allother data are the same as for cable type XHE 49. The same is valid for electric features andpermitted current ratings, as well as permitted short circuit current for phase conductor.Permitted short circuit current for electric protection of cable depends on cross-section ofadditional electric protection.029Electric protection and additional protection must be joined each other, leastwise at cableclamps and cable heads.The data cable is provided to an individual user request.