Havells 8.7/15 (17.5) kV single core XLPE insulated armoured HT cable (type N2XHSYRaY/NA2XHSYRaY) with copper or aluminium conductor, semi-conducting conductor and insulation screens, metallic screen, PVC separation sheath, aluminium round wire armour and PVC over sheath, as per IEC-60502-2. Core identification is Natural and the cable is supplied on wooden drums. Only the description page (page 56) falls in this extract; the per-size technical tables for this cable are on the following page (page 57).

Key features

• High continuous current rating
• Higher short circuit rating
• High emergency load capacity
• Low dielectric loss
• Longer charging currents
• Free from height limitation & maintenance
• Resistant to vibration, moisture, chemical & corrosive gases
• Much longer life of the cable
• Type of cable N2XHSYRaY/NA2XHSYRaY (Cu / Al conductor)
• Construction: Conductor - Copper/Aluminium
• Semi-conducting conductor screen
• XLPE insulation
• Semi-conducting insulation screen
• Metallic screen
• Separation sheath - PVC
• Aluminium round wire armour
• Over sheath - PVC
• Core identification: Natural
• Supplied on wooden drums
• Other specification and colour are available on request
• XLPE insulated armoured single core cable
• Available with copper or aluminium conductor
• Standard drum lengths 500 / 250 m depending on conductor size

Applications

• Electric power circuit

Specifications

Rated Voltage: 8.7/15 (17.5) kV | Number of Cores: 1 | Conductor: Copper/Aluminium | Insulation: XLPE | Conductor Screen: Semi-conducting | Insulation Screen: Semi-conducting | Metallic Screen: Provided | Separation Sheath: PVC | Armour: Round Aluminium Wire | Outer Sheath: PVC | Conductor Size Range: 25 to 1000 mm2 | Type of Cable (Cu/Al): N2XHSYRaY/NA2XHSYRaY | Specification: IEC-60502-2 | Identification of Core: Natural | Type of Packing: Wooden Drum | Rated Voltage (U0/U (Um)): 8.7/15 (17.5) kV | 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): 20D (single core) | 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 | BS 6622

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