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NOTICE! RCGC catalogues under circulation are still valid. Some International and National Standards mentioned in RCGC Catalogues.. <more>

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UNARMOURED THREE CORE CABLES
COPPER CONDUCTORS STANDARD : IEC 60502-2 Uo/U(UM)=8.7/15(17.5)kV


UNARMOURED THREE CORE CABLES

 1.  Conductor
 2.  Conductor Screen
 3.  XLPE Insulation
 4.  Insulation Screen (Non-Metallic)
 5.  Insulation Screen (Metallic)
 6.  PP Filler
 7.  Bedding
 8.  Outer Sheath

 
Item code (1) Size Diameter of Conductor (Approx.) Nominal Insulation Thickness Diameter over Insulation (Approx.) Nominal Outer Sheath thickness Overall Diameter (Approx.) Weight of Cable (Approx.)
CUT CUW CUT CUW CUT CUW
  mm² mm mm mm mm mm mm mm kg/km kg/km
10 25 5.9 4.5 16.1 2.4 2.4 47 50 3000 3200
11 35 6.9 4.5 17.5 2.5 2.5 51 54 3025 3125
12 50 8.1 4.5 18.7 2.6 2.6 54 56 3550 3650
13 70 9.7 4.5 20.3 2.7 2.7 58 61 4400 4500
14 95 11.4 4.5 22.0 2.8 2.8 62 64 5400 5500
15 120 12.9 4.5 23.5 2.9 2.9 65 68 6250 6350
16 150 14.3 4.5 24.9 3.0 3.1 69 71 7200 7400
17 185 16.0 4.5 26.6 3.1 3.2 72 76 8500 8800
18 240 18.4 4.5 29.0 3.3 3.3 78 81 10550 10700
19 300 20.4 4.5 31.0 3.4 3.5 83 86 12550 12750


Size Max. DC Resis- tance at 20°C Inductance Capaci- tance Adiabatic Short Circuit Current for 1 second Current Carrying Capacity (2) Voltage Drop per phase
Cond. CUT CUW CUT CUW
Direct Buried In Air Direct Buried In Air
mm² Ohm/km mH/km mF/km kA kA kA Amps Amps Amps Amps V/A.Km
25 0.7270 0.359 0.17 3.575 1.302 2.000 153 151 146 142 0.8230
35 0.5240 0.344 0.19 5.005 1.371 2.000 181 180 174 171 0.6120
50 0.3870 0.329 0.21 7.150 1.455 2.000 213 214 206 204 0.4700
70 0.2680 0.314 0.23 10.010 1.569 2.000 260 263 251 252 0.3450
95 0.1930 0.306 0.25 13.585 1.686 2.000 310 318 301 306 0.2670
120 0.1530 0.296 0.27 17.160 1.791 2.000 352 364 342 351 0.2240
150 0.1240 0.288 0.29 21.450 1.890 3.125 394 411 383 396 0.1930
185 0.0991 0.280 0.32 26.455 2.007 3.125 444 467 432 451 0.1660
240 0.0754 0.271 0.35 34.320 2.175 3.125 511 544 500 529 0.1400
300 0.0601 0.260 0.39 42.900 2.316 3.125 572 615 561 599 0.1230
 


  1. The code numbers to be read in conjunction with 04020103 at the beginnng. Example for 150 mm² cable, the code number is 0402010316.

    Code number for other types of insulaton screen, Replace the 6th digit as follows:
    2 for S + CUW, 3 for B + CUT; 4 for B + CUW

  2. LAYING CONDITIONS :

    Underground temperature of soil 20°C, Ground thermal resistivity 100°C cm/W, Ambient temperature 30°C. Depth of laying = 700 mm.

XLPE INSULATED MEDIUM VOLTAGE CABLES
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