LT Power Cables

AYY / YY-1 CORE

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Cable Construction

1.1 kV (A.C) & 1.5 kV (D.C ) to Earth

1 cores AL / CU conductor, PVC insulated, unarmoured cables as per IS 1554 Part - 1.

Conductor : AL up to 10 Sq. mm conductor are solid Cl.1 as per IS 8130. And above 10 Sq. mm conductor are stranded round or compact Cl. 2 as per IS 8130

In CU 4 & 6 Sq. mm conductor are solid Cl.1 or stranded Cl. 2 as per IS 8130. 10 Sq. mm & above stranded round or stranded compact Cl. 2 as per IS 8130

Insulation : PVC Type - A, as per IS 5831. (Option : HR PVC Type - C, as per IS 5831)

Core Color : Red or yellow or blue or black or natural

Outer Sheath : PVC Type ST-1 as per IS 5831. (Option : PVC Type - ST 2 as per IS 5831 / FR Type / FRLS Type )

Cable Color : Black (Options : Any other color as per requirement)

Cable Design Parameters

While ordering, in addition to the part number the following details shall also be advised:

Conductor Type (Aluminium or Copper) and class of conductor (Cl. 1 or 2).

Insulation Type – PVC Type A / C.

Sheath Type – PVC Type ST-1 / FR / FRLS; PVC Type ST-2 / FR / FRLS.

Colour from above technical details.

PartNumber Nominal Cross Sectional Area(Sq. mm) Minimum No. of Strands in Conductor Nominal Thickness of Insulation (mm) Nominal Thickness of Outer Sheath (mm) Approx.Overall Diameter(mm) Approx. Net Wt.of Cable (Kg/Km)
AL CU AL CableAYY CU CableYY
110100100016 16 6 6 1.0 1.8 11 160 260
110100100025 25 6 6 1.2 1.8 13 210 365
110100100035 35 6 6 1.2 1.8 14 250 460
110100100050 50 6 6 1.4 1.8 16 300 610
110100100070 70 12 12 1.4 1.8 17 400 830
110100100095 95 15 15 1.6 1.8 19 500 1100
110100100120 120 15 18 1.6 2.0 21 600 1350
110100100150 150 15 18 1.8 2.0 23 750 1680
110100100185 185 30 30 2.0 2.0 25 900 2050
110100100240 240 30 34 2.2 2.0 28 1100 2600
110100100300 300 30 34 2.4 2.0 30 1350 3200
110100100400 400 53 53 2.6 2.2 35 1700 4200
110100100500 500 53 53 3.0 2.2 38 2150 5250
110100100630 630 53 53 3.4 2.4 43 2750 6650
110100100800 800 53 53 3.4 2.4 48 3300 8250
110100101000 1000 53 53 3.4 2.6 52 4100 10300

Electrical Parameters

PartNumber Nominal Cross Sectional Area(Sq. mm) Max. DC Conductor Resistance at 20°C (Ω/km) Max. AC Conductor Resistance at 70°C (Ω/km) Approx. Reactanceat 50 Hz (Ω/km) Approx. Capacitance of Cable (microF/KM) Approx. Net Wt.of Cable (Kg/Km) Short Circuit Current Rating for 1sec. Duration(K.Amps)
AL CU AL CU With AL Cond. With CU Cond.
Ground Duct Air Ground Duct Air AL CU
110100100016 16 1.91 1.15 2.29 1.38 0.11 1.01 66 65 64 85 83 82 1.22 1.84
110100100025 25 1.2 0.727 1.44 0.87 0.105 1.05 86 84 84 110 110 110 1.9 2.88
110100100035 35 0.868 0.524 1.04 0.63 0.1 1.22 100 100 105 130 125 130 2.66 4.03
110100100050 50 0.641 0.387 0.769 0.464 0.098 1.22 120 115 130 155 150 165 3.8 5.75
110100100070 70 0.443 0.268 0.532 0.322 0.091 1.43 140 135 155 190 175 205 5.32 8.05
110100100095 95 0.32 0.193 0.384 0.232 0.088 1.47 175 155 190 220 200 245 7.22 10.9
110100100120 120 0.253 0.153 0.304 0.184 0.086 1.62 195 170 220 250 220 280 9.12 13.8
110100100150 150 0.206 0.124 0.247 0.1488 0.085 1.62 220 190 250 280 245 320 11.14 17.3
110100100185 185 0.164 0.0991 0.197 0.1189 0.084 1.62 240 210 290 305 260 370 14.1 21.3
110100100240 240 0.125 0.0754 0.151 0.0912 0.082 1.72 270 225 335 345 285 425 18.2 27.3
110100100300 300 0.1 0.0601 0.122 0.0733 0.08 1.74 295 245 380 375 310 475 22.8 34.5
110100100400 400 0.0778 0.047 0.0961 0.058 0.08 1.81 325 275 435 400 335 550 30.4 46
110100100500 500 0.0605 0.0366 0.0759 0.0459 0.079 1.86 345 295 480 425 355 590 38 57.5
110100100630 630 0.0469 0.0283 0.061 0.0368 0.077 1.87 390 320 550 470 375 660 47.9 72.5
110100100800 800 0.0367 0.0221 0.0503 0.0303 0.077 1.98 450 380 610 530 425 725 60.8 92
110100101000 1000 0.0291 0.0176 0.0422 0.0255 0.076 2.2 500 415 680 590 740 870 76 115