LT Power Cables

AYFY / YFY-AYWY / YWY-3.5 CORE

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Cable Construction

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

3.5 cores AL /CU Conductor, PVC insulated, galvanised steel strip /wire armoured cables as per IS 1554 Part -1.

Conductor : AL/ CU Stranded compact shaped conductor as per Cl. 2, IS 8130

In CU 4 & 6 Sq. mm conductor are solid Cl. 1 or stranded class-2 as per IS 8130. 10 Sq. mm conductor is stranded Cl. 2 round as per IS 8130. Above 10 Sq. mm conductor are stranded compacted shaped Cl. 2 as per IS 8130

Above 10 Sq. mm conductor are stranded round or compact round or compacted shaped 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, yellow, blue

Inner Sheath : PVC / PVC tape as per IS 1554 (P - 1)

Armouring : Single armouring of galvanised steel strip / wire

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)

Phase Core Color : Red, yellow, blue

Neutral Core Color : Black

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.

PartNumber Nominal Cross Sectional Area (Sq. mm) Minimum No. of Strands in Conductor Nominal Thickness of Insulation (mm) Minimum Thick. of Inner Sheath (mm) Armouring with Flat AL Strip (AYFaY/YFaY) Armouring with Round Wire (AYWaY/YWaY)
AL CU Nominal Thick. of Arm. Strip (mm) Minimum Thick. of Out. Sheath(mm) Approx. Overall Dia.(mm) Approx Net Wtof Cable (kg/km) Nominal Diameter of Wire (mm) Minimum Thick. of Out. Sheath (mm) Approx. Overall Dia. (mm) Approx Net Wtof Cable (kg/km)
AL Cable AYFaY CU Cable YFaY AL Cable AYWaY CU Cable YWaY
110901010211 3×25+16 6/6 6/6 1.2/1.0 0.3 0.8 1.40 24 1000 1550 1.6 1.40 26 1285 1825
110901020211 3×35+16 6/6 6/6 1.2/1.0 0.3 0.8 1.40 26 1200 1950 1.6 1.40 28 1425 2125
110901030211 3×50+25 6/6 6/6 1.4/1.2 0.3 0.8 1.56 30 1500 2600 1.6 1.56 31 1785 2790
110901040211 3×70+35 12/6 12/6 1.4/1.2 0.4 0.8 1.56 34 1800 3300 2.0 1.56 36 2390 3780
110901050211 3×95+50 15/6 15/6 1.6/1.4 0.4 0.8 1.56 37 2300 4350 2.0 1.72 39 2980 4980
110901060211 3×120+70 15/12 18/12 1.6/1.4 0.5 0.8 1.72 41 2800 5450 2.0 1.88 43 3480 6080
110901070211 3×150+70 15/12 18/12 1.8/1.4 0.5 0.8 1.88 45 3200 6400 2.0 1.88 47 3970 7180
110901080211 3×185+95 30/15 30/15 2/1.6 0.5 0.8 2.04 49 3900 7900 2.5 2.04 53 5185 9150
110901090211 3×240+120 30/15 34/18 2.20/1.6 0.6 0.8 2.20 55 4800 10000 2.5 2.30 58 6385 11480
110901100211 3×300+150 30/15 34/18 2.4/1.8 0.6 0.8 2.36 61 5800 12300 3.2 2.52 65 8180 14480
110901110211 3×400+185 53/30 53/30 2.6/2.0 0.7 0.8 2.68 69 7300 15800 3.2 2.63 75 9885 18380
110901120211 3×500+240 53/30 53/34 3.0/2.2 0.7 0.8 2.84 77 9000 19500 4.0 3.00 84 13480 23985
110901130211 3×630+300 53/30 53/34 3.4/2.40 0.7 0.8 3.00 87 11500 25000 4.0 3.00 92 15980 28480

Electrical Parameters

Part Number Nominal Cross Sectional Area(Sq. mm) Max. DC Conductor Resistance at20°C (Ω/km) Max. AC Conductor Resistance at70°C (Ω/km) Approx.Capacitance of Cable (microF/KM) Approx. Capacitance of Cable (microF/KM Normal Current Rating (Amps) Short CircuitCurrent Ratingfor 1sec. Duration(K.Amps)
With AL Cond. With CU Cond.
AL CU AL CU Ground Duct Air Ground Duct Air AL CU
110901010211 3×25+16 1.2 0.727 1.44 0.87 0.083 0.42 76 63 70 99 81 90 1.9 2.88
110901020211 3×35+16 0.868 0.524 1.04 0.63 0.082 0.48 92 77 86 120 99 110 2.66 4.03
110901030211 3×50+25 0.641 0.387 0.769 0.464 0.082 0.49 110 95 105 145 125 135 3.8 5.75
110901040211 3×70+35 0.443 0.268 0.532 0.322 0.076 0.56 135 115 130 175 150 165 5.32 8.05
110901050211 3×95+50 0.32 0.193 0.384 0.232 0.076 0.58 165 140 155 210 175 200 7.22 10.9
110901060211 3×120+70 0.253 0.153 0.304 0.184 0.075 0.63 185 155 180 240 195 230 9.12 13.8
110901070211 3×150+70 0.206 0.124 0.247 0.1488 0.074 0.63 210 175 205 270 225 265 11.4 17.3
110901080211 3×185+95 0.164 0.0991 0.197 0.1189 0.074 0.64 235 200 240 300 255 305 14.1 21.3
110901090211 3×240+120 0.125 0.0754 0.151 0.0912 0.073 0.67 275 235 280 345 295 355 18.2 27.6
110901100211 3×300+150 0.1 0.0601 0.122 0.0733 0.073 0.68 305 260 315 385 335 400 22.8 34.5
110901110211 3×400+185 0.0778 0.047 0.0961 0.058 0.072 0.7 335 290 375 425 360 435 30.4 46
110901120211 3×500+240 0.0605 0.0366 0.0759 0.459 0.072 0.7 370 320 425 470 390 520 38 57.5
110901130211 3×630+300 0.0469 0.0283 0.061 0.0368 0.072 0.7 405 350 480 555 470 675 47.9 72.5