Havells 12/20 (24) kV three core XLPE insulated armoured cable with copper or aluminium conductor as per IEC-60502-2, intended for electric power circuits and supplied on wooden drums. The tables give insulation, inner covering, armour wire and sheath dimensions, overall diameter, weights, standard drum lengths, packing dimensions, electrical characteristics and current ratings per conductor size for both copper and aluminium conductors.

Key features

• Type of cable N2XSEYRY/NA2XSEYRY (Cu / Al conductor)
• XLPE insulated with semi-conducting conductor screen, semi-conducting insulation screen and metallic screen
• Available with copper or aluminium conductor
• Galvanized steel round wire armour with filler, inner covering and PVC over sheath
• Supplied on wooden drums
• Other specification and colour are available on request
• Construction: Conductor - Copper/Aluminium
• Semi-conducting conductor screen
• XLPE insulation
• Semi-conducting insulation screen
• Metallic screen
• Filler
• Inner covering
• Galvanized steel round wire armour
• Over sheath - PVC
• Standard drum lengths 500 / 250 / 200 m depending on conductor size

Applications

• Electric power circuit

Specifications

Rated Voltage (U0/U (Um)): 12/20 (24) kV | Number of Cores: 3 | Conductor: Copper / Aluminium | Insulation: XLPE | Armour: Galvanized steel round wire | Outer Sheath: PVC | Conductor Size Range: 35 to 300 mm2 | Type of Cable (Cu/Al): N2XSEYRY/NA2XSEYRY | Identification of Core: Red, Yellow & Blue | Type of Packing: Wooden Drum | Conductor Temperature - Max. Permissible (XLPE, current rating basis): 90 deg C | Current Rating Basis - Ground Temperature: 20 deg C | Current Rating Basis - Ambient Air Temperature: 30 deg C | Current Rating Basis - Soil Thermal Resistivity: 1.5 K.m/W | Current Rating Basis - Depth of Laying: 0.7 m | Max. Conductor Temperature during Short Circuit: 250 deg C | Min. Bending Radius (above 11 kV): 15D (multicore) | Max. Safe Pulling Force (pulling eye): Aluminium conductor 3.0 kg/mm2; Copper conductor 5.0 kg/mm2 | Short Circuit Constant K: 0.143 (Copper), 0.094 (Aluminium)

Standards: IEC-60502-2

Packing: Wooden drum; standard drum lengths 500 / 250 / 200 m depending on conductor size (see variants)