N2XSYKYRY , N2XSYKYBY , N2XSEKYRY , N2XSEKYBY , NA2XSYKYRY , NA2XSYKYBY , NA2XSEKYRY , NA2XSEKYBY
- For general purpose , MV cables are used to distribute single/three phase a.c. electrical power supplies at nominal system voltages of 6kV up to and including 30kV to traction substations on Electrified lines. The cables also will be used in public networks and industrial plants, Indoor and outdoor installation, on racks, direct buried or in conduits.
- Armoured cables would be able to bear external mechanical forces.
- Lead sheathed cables are designed to be used in any applications where the cables may be subjected to solvent penetration or corrosive attack or hydrocarbons.
In the voltage designation of U0/U(Um), The rated voltages of the cables considered in IEC standard are as follows: U0/U(Um)=3. 6/6(7. 2) - 6/10(12) - 8.7/15(17. 5) - 12/20(24) - 18/30(36)KV Construction features: -Conductor size : Up to 630 sq.mm - No. of cores : one or three -Conductor material: Plain/Tinned copper or aluminum -Conductor type: compacted Round stranded -Conductor screen : Semi-conductive compound -Insulation screen : Semi-conductive compound + semi-conductive and water blocking tape -Metallic screen : Copper wires, Copper tape or combination of wires & tape -Filler: Extruded Polyvinyl chloride (PVC) or polyethylene (PE) for three core cables -Metallic sheath : Lead sheath -Separation sheath: Polyvinyl chloride (PVC) or polyethylene ( PE) Three core cables :Galvanized steel wire or tape armour Single core cable :Aluminum wire or tape armour -Sheath: Polyvinyl chloride (PVC) or high density polyethylene ( HDPE) Other features : -Ultra violet (UV) resistant colored outer sheath -Low smoke and fume (LSF) -Halogen free and flame retardant (HFFR) - Oil & hydrocarbon resistant -Vermin proof Standards : IEC60502-2,ISIRI3569-2
U0 is the rated power frequency voltage between conductor and earth or metallic screen.
U is the rated power frequency voltage between conductors.
Um is the maximum value of the "highest system voltage" for which the equipment may be used.
-Insulation: Cross-linked polyethylene (XLPE)
-Armour: 
