Cable Type | Specifications |
1) L.T. Cables upto 1.1KV Power IS:694 - 1990 |
-Single core upto 630 sq.mm -Multi core upto 50 sq.mm -Aluminium/Copper Conductor |
This is the most commonly used power cable. This serves the requirements of domestic and industrial consumption. This cable is insulated and coloured as required in the IS. The Core can be Aluminium or Copper based. Insulation can be any type like, PVC, HDPE, XLPE, FRLS, FR, ZHLS etc. However the popularly used is PVC / FRLS.
Flexible Cables are most commonly used for :
A Flexible cable consists of two main parts: Conductor and Insulation.
Conductors for Cables are drawn from electrolytic grade Copper / Aluminium to ensure compliance with global standards . Annealed conductors are bunched together on custom built heavy duty bunching machines to impart concrete shape to the conductor.
Bunched conductors are insulated on ultra modern extrusion machines with high technology P.V.C./ FRLS/FR/HDPE/ZHLS Compound, which ensures extra flexibility, ideally suited for conduit & concealed wiring. To manufacture multicore cables, the insulated cores are laid up to form a concentric shape. Inner cores are coded for identification as per National / International coding system or as per customer's specifications.
Outer sheathing is also provided with special soft PVC compound to minimize chances of electrical failures which may cause damage to expensive appliances, instruments & machinery etc.
Conductor | Insulation | ||||||
Area | No. & Size of Wire | Diameter of Wire | Max. Resistance at 20°C | DC or Single Phase AC Separate in Air | Nominal Thickness | Nominal Overall Diameter | |
(Sq. mm) | (mm) | (mm) | (Ohm/km) | (Amps) | (mm) | (mm) | |
0.50 | 16/.20 | 0.95 | 37.50 | 4 | 0.6 | 2.30 | |
0.75 | 24/.20 | 1.24 | 25.00 | 6 | 0.6 | 2.55 | |
1.00 | 32/.20 | 1.31 | 18.70 | 10 | 0.6 | 2.70 | |
1.50 | 48/.20 | 1.64 | 13.00 | 15 | 0.6 | 2.95 | |
2.50 | 80/.20 | 2.08 | 7.98 | 20 | 0.7 | 3.65 | |
4.00 | 128/.20 | 2.64 | 4.95 | 25 | 0.8 | 4.35 | |
6.00 | 85/. 30 | 3.2 | 3.124 | 46 | 0.8 | 5.65 | |
10.0 | 140/. 30 | 4.6 | 1.88 | 64 | 1.0 | 7.15 | |
16.0 | 101/.45 | 5.9 | 1.140 | 85 | 1.4 | 8.95 | |
25.0 | 168/.45 | 7.6 | 0.721 | 112 | 1.4 | 10.65 | |
35.0 | 220/.45 | 8.7 | 0.525 | 138 | 1.4 | 11.75 | |
50.0 | 325A45 | 10.6 | 0.362 | 172 | 1.6 | 14.05 | |
70.0 | 440/.45 | 12.3 | 0.261 | 214 | 1.8 | 16.15 | |
95.0 | 485/. 50 | 14.7 | 0.195 | 254 | 1.9 | 18.75 | |
120.0 | 614/. 50 | 16.7 | 0.152 | 300 | 2.1 | 21.25 | |
150.0 | 943A45 | 18.3 | 0.125 | 340 | 2.2 | 22.50 | |
185.0 | 925/.50 | 20.3 | 0.101 | 390 | 2.5 | 25.50 | |
240.0 | 1221/.50 | 23.0 | 0.076 | 460 | 2.5 | 28.50 |
Conductor | Insulation | ||||||
Cross Sectional Area | No. & Size of Wire | Copper C.R. at 20°C | Aluminium Capacity Copper | Current Carrying Thickness | Nominal Thickness of Insulation | Nominal Overall Diameter | |
CU | AL | ||||||
(Sq.mm) | (mm) | (Ohm.Km) | (Ohm.Km) | (Amps) | (Amps) | (mm) | (mm) |
1.0 | 1/1.12 | 17.70 | - | 18 | - | 0.7 | 2.55 |
1.5 | 1/1.38 | 11.90 | 19.7 | 25 | 20 | 0.7 | 2.80 |
2.5 | 1/1.78 | 7.14 | 11.8 | 32 | 25 | 0.8 | 3.40 |
4.0 | 1/2.24 | 4.47 | 7.39 | 45 | 35 | 0.8 | 3.85 |
6.0 | 1/2.76 | 2.97 | 4.91 | 55 | 45 | 0.8 | 4.40 |
10.0 | 1/3.57 | 1.77 | 2.94 | 75 | 60 | 1.0 | 5.60 |
16.0 | 7/1.70 | 1.12 | 1.89 | 95 | 75 | 1.0 | 7.10 |
25.0 | 7/2.14 | 0.710 | 1.17 | 125 | 100 | 1.2 | 885 |
30.0 | 7/2.52 | 0.520 | 0.861 | 150 | 120 | 1.2 | 9.90 |
50.0 | 19/1.78 | 0.360 | 0.595 | 190 | 150 | 1.4 | 11.90 |
70.0 | 19/2.14 | 0.265 | 0.373 | 240 | 185 | 1.4 | 13.50 |
95.0 | 19/2.52 | 0.190 | 0.250 | 280 | 215 | 1.6 | 15.70 |
120.0 | 37/2.03 | 0.151 | 0.211 | 300 | 240 | 1.6 | 17.4 |
Conductor | Insulation | Sheath | Overall Diameter | ||||||
Area | No. & Size of Wire | Diameter | Resistance at 20°C | Current Carrying Capacity | Nominal Thickness | Nominal Thickness | 2 Core | Nominal 3 Core | 4 Core |
(Sq.mm) | (mm) | (mm) | (Ohm/km) | AMPS. | (mm) | (mm) | (mm) | (mm) | (mm) |
0.50 | 16/.20 | 0.95 | 39.00 | 3 | 0.6 | 0.9 | 6.50 | 6.85 | 7.45 |
0.75 | 24/.20 | 1.24 | 26.00 | 6 | 0.6 | 0.9 | 7.00 | 7.40 | 8.05 |
1.00 | 32/.20 | 1.31 | 19.50 | 10 | 0.6 | 0.9 | 7.30 | 7.75 | 8.45 |
1.50 | 48/.20 | 1.64 | 13.00 | 15 | 0.6 | 0.9 | 7.80 | 8.25 | 9.25 |
2.50 | 80/.20 | 2.08 | 7.98 | 20 | 0.7 | 1.0 | 9.40 | 10.00 | 10.95 |
4.00 | 128/.20 | 2.64 | 4.95 | 25 | 0.8 | 1.0 | 10.75 | 11.50 | 12.65 |
Conductor | Insulation | Sheath | Overall Diameter | ||||||
Area | No. & Size of Wire | Diameter | Resistance at 20°C | Current Carrying Capacity | Nominal Thickness | Nominal Thickness | 2 Core |
Nominal 3 Core |
4 Core |
(Sq.mm) | (mm) | (mm) | (Ohm/km) | (Amps) | (mm) | (mm) | (mm) | (mm) | (mm) |
0.50 | 16/.20 | 0.95 | 39.00 | 3 | 0.6 | 0.9 | 6.50 | 6.85 | 7.45 |
0.75 | 24/.20 | 1.24 | 26.00 | 6 | 0.6 | 0.9 | 7.00 | 7.40 | 8.05 |
1.00 | 32/.20 | 1.31 | 19.50 | 10 | 0.6 | 0.9 | 7.30 | 7.75 | 8.45 |
1.50 | 48/.20 | 1.64 | 13.00 | 15 | 0.6 | 0.9 | 7.80 | 8.25 | 9.25 |
2.50 | 80/.20 | 2.08 | 7.98 | 20 | 0.7 | 1.0 | 9.40 | 10.00 | 10.95 |
4.00 | 128/.20 | 2.64 | 4.95 | 25 | 0.8 | 1.0 | 10.75 | 11.50 | 12.65 |