GTP FOR HT CABLES - GUVNL

1 GUJARAT STATE ELECTRICITY CORPORATION LIMITED, WANAKBORI TPS GUARANTEED TECHNICAL PERTICULARS DATA SHEETS FOR 3 CORE 240 mm2 HT XLPE CABLES - KV (E) Description Unit 1 GENERAL Name of Manufacture Place of Manufacturing Applicable Standards 1S/IEC IS:7098(Part-2)1985,IS:5831-1984,IS:8130 -1984,IS:3975 Design Ambient Temperature C C 40 cable particulars whether confirmed as per clause of Section I of Technical Specification ( Yes/No) 2 CABLES Voltage Grade (UO/U) KV Whether Suitable for neutral earthed/unearthed System Earthed Earthed Permissible voltage & frequency variation for satisfactory operation Voltage KV Between +10% to -15% Frequency Hz Between 3% Combined Between 10% No. of cores & Size 3C x 240 Continuous Current carrying capacity a) For Standard Condition as per IS 1) In Air Amp 392 2) In Ground Amp 319 3) In Duct Amp 287 4) In Trench Amp 333 b) For Site Condition 1) In Air ( at 40 Deg.

2 C) Amp 392 2) In Ground ( at 30 Deg C) Amp 319 3) In Duct Amp 287 4) In Trench Amp 333 3 conductor Material & its applicable IS Stranded (Class-2) Aluminium conductor as per IS: 8130 Shape of conductor Compacted Circular Nominal Cross Section Area Sq. mm 240 Number of Wires per core No. 37 Nominal diameter & cross Section area of each wire used in each core of the con ductor ( Before Stranding) 4 conductor SCREEN Type Extruded Material & its applicable IS Non metalic Semi-conducting compound , IS 7098(Part-2)1985 Continuous Working Temperature C 90 C Nominal Thickness mm 5 INSULATION Material & its applicable IS Cross Linked Polyethylene(XLPE)as pre IS:7098 Part-2 Thickness of Insulation (Nom) a) Between Cores mm b) Between cores & Inner Sheath mm NA Tolerance in thickness ( Percent) of insulation Diameter of core over insulation ( Calculated) mm Specific insulation resistance at 90 C 1x1012 ohm-cm(Min) at 90 C 6 INSULATION SCREEN Materail & its applicable IS Semi-conducting compound, IS.

3 7098(Part-2)1985 (Non-Metallic) Copper Tape(Metallic) Thickness 1) Semiconductor Part mm 2) Metallic Part ( Copper Tape) mm Whether overlapping provided for copper tape current carrying capacity YES a) Continuous NA b) current duration of 3 -sec KA (All 3 core combined) Diameter of core over screening ( Calculated) mm Whether insulation screen is removable without the applicable of heat YES 7 FILLER Material & its applicable IS Non Hygroscopic PVC Whether suitable for operating temperature of cable YES No. fillers provided including central filler No 10 8 INNER SHEATH Material & its applicable IS PVC Type ST-2 as per IS:5381 Extruded or Wrapped Extruded Thickness ( Min) mm Diameter of cable over innersheath( Calculated) mm 9 ARMOURING Material & its applicable IS Galvanised Steel as per IS:3975 Type of Armoring Flate Strip No.

4 Of wires No. 44(Approx.) Diameter of cable over Armoring ( Calculated) mm Current carrying capacity of Armour a) On continuous basis NA b) current duration of 1-Sec KA 10 OUTER SHEATH Material & its applicable IS PVC Type ST-2 as per IS-5831 Thickness of Sheath ( Min) mm Tolerance on thickness of sheath As per IS:7098(Part-2) Overall diameter of cable mm (Approx.) Scheme for identification ( cable ) As per IS:7098(Part-2)1985 along with word 'GSECL' 11 cable CONSTANT AC resistance per core at operating temp ohm/Km (Approx.) DC resistance per core at 20 C ohm/Km (Max.) Reactance per core ohm/Km (Approx.) Capacitance per core fd/Km (Approx.) Insulation resistance at 27 C Shall be corresponding to min. volume resistivity of 1x10^ohm cm at 27 C Loss Talent (Max.

5 At Uo Dielectric Constant (Average) Max cable charging current at normal operating voltage Amp/Km 12 OTHER PARAMETERS Recommended minimum bending radius 15xD mm Safe pulling force 30 Approx. cable Weight Kg/Km 6700(Approx.) 13 cable DRUM Net weight of cable Kg 6700(Approx.) Drum weight( Empty) Kg 340(Approx.) Shipping weight ( Drum wt + cable wt) Kg 7040(Approx.) Whether ISI Mark shall be indicated on drum YES Length of cable per drum Mtrs 500+ 5% 14 Whether details shall be embossed YES 15 Whether type test reports submitted YES 16 Whether drawing submitted YES