Product Details

Product Range
Cable Type Specification

1) L.T. Cables upto 1.1KV Power

    IS:1554(Part-I) 

-Single core upto 1000 sq.mm

-Multi core upto 240 sq.mm

-Aluminium /Copper Conductor

-Armoured/Unarmoured

2) Control Cables

    IS:1554(Part-I)

-Upto 61 Cores in 1.5/2.5 Sq.mm

-Multi core upto 50 Sqmm x 4 core

-Copper Conductor

-Armoured/Unarmoured

3) Mining Cables Signaling Cables

    IS:1554(Part-I) & IS:1554(Part-II)

-Copper Conductor

-Steel Strip/Round Wire/ Double Armouring

-Upto 240 Sq mm

-Working Voltage upto 3.3 KV
About the Cable

PVC rapidly replaced rubber for wiring cables shortly after 1945 and for Power cables insulation in late 1950s in Europe. In India, the PVC power & Control Cables came into operation in early 1960s. The use of PVC provided cables of excellent quality which were clean and much easier to handle. Further, simplified terminators and jointing techniques make these cables eminently suitable among other applications for Industrial and Mining installation.

The main advantages of PVC Cables can thus be summarized as under:

  • The insulation resistance and breakdown strength are practically unaffected by moisture. These cables are thus suitable for laying even under water.
  • Cables can be overloaded for short periods without any appreciable effect on cable life.
  • The cables can be laid vertically and on steep slopes as there is no impregnating compound involved.
  • The cables are flame retardant since PVC ignites with great difficulty and is self extinguishing.
  • These cables are immune to chemicals normally encountered in practice.
  • Due to their lightweight, PVC Cables are easy to install and handle. Small bending rapider permit the termination of these cables in limited space.
  • Low tension PVC Cables do not normally require sealing ends, when terminated indoor. The terminations can therefore be effected quickly and economically.
  • PVC Cables have tough but smooth outer covering and are thus abrasion proof.
  • PVC cables are not affected by vibration.
  • PVC Cables have high short circuit capacity since they can withstand a high transient temperature without any deformation of insulation or displacement of conductor.
  • PVC Cables have a long service life.
Application

These cables are used for outdoor and indoor installations in damp and wet locations, connecting signalling and control units in industry. They are laid in air, in ducts, in trenches or direct in ground. 

General Construction
Conductor

The conductor shall be composed of plain copper or aluminum wires complying with IS: 8130-1984. Mining Cables to be used in gassy mines shall be of copper conductor only.

Insulation

The conductors are insulated with suitably compounded PVC, which is applied to the conductor by extrusion process.

Inner Sheath

For all cables having two or more cores, a common covering (inner sheath) is provided over the laid up cores either by extrusion or by wrapping of plastic or proofed tapes. Single core cables do not require inner sheath.

Armouring

Depending upon the application, the cables can be armoured. The armouring can be Round Steel Wire or Steel Strips. In case of cables where diameter over the inner sheath does not exceed 13 mm, the armour consists of Galvanished Round Steel Wires; above this size, the armour can be Galvanished Flat Steel Strips or Galvanished Round Steel Wires as per customers' requirement. In case of single core cables intended for use of an A.C. Systems, the armouring shall be of Aluminium Wires/Stripes or any other non-magnetic material.

Armouring of PVC Mining Cables consist of Galvanised Round Steel Wires/Strips, but wherever necessary, a few Tinned Copper Wires/Strips are also included to meet the resistance requirements of armouring for Mining Cables.

Outer Sheath

Over the armouring, or in case of unarmoured cables, over the inner sheath (for single core cables over the insulation), a tough outer sheath of PVC is applied by extrusion. This is normally Black in colour. This provides a tough but smooth outer covering to PVC Cables. The trademark "Arrow" are embossed on the outer sheath. Wherever desired the customer name can also be embossed on the cable. The embossing script repeats at desired length of cable.

Type Designation

The following code is used for designating the type of cable:

Constituents Code
Aluminium Conductor A
PVC insulation Y
Steel round wire armour W
Steel strip armour F
Steel double round wire armour WW
Steel double strip armour FF
PVC outer sheath Y

Technical Specifications

Single Core, Aluminium Conductor, Unarmoured

Nominal Cross Sectional Area

 Nominal Thickness Of Insulation Nominal Thickness Of Outer Sheath Approx. Overall Diameter Approx. Weight Of Cable Max.DC Conductor Resistance at 20°C CURRENT RATINGS
Direct in Ground In Duct In Air
2 cables 3 cables 2 cables 3 cables 2 cables 3 cables
Sq.mm mm mm mm kg/km Ohm/km Amps. Amps. Amps. Amps. Amps. Amps.
1.5 0.8 1.8 6.70 55 18.10 21 17 19 17 18 15
2.5* 0.9 1.8 7.40 65 12.10 28 24 25 24 25 21
4* 1.0 1.8 8.00 75 7.41 36 31 33 30 32 27
6* 1.0 1.8 8.50 90 4.61 44 39 42 37 41 35
10* 1.0 1.8 9.30 105 3.08 54 51 56 51 56 47
16 1.0 1.8 10.80 140 1.91 75 66 71 65 72 64
25 1.2 1.8 12.50 190 1.20 97 86 93 84 99 84
35 1.2 1.8 13.70 225 0.868 120 100 110 100 120 105
50 1.4 1.8 15.80 300 0.641 145 120 130 115 150 130
70 1.4 1.8 17.80 400 0.443 170 140 155 135 185 155
95 1.6 2.0 19.70 500 0.320 205 175 180 155 215 190
120 1.6 2.0 21.80 560 0.253 230 195 200 170 240 220
150 1.8 2.0 23.40 665 0.206 265 220 220 190 270 250
185 2.0 2.0 25.50 855 0.164 300 240 240 210 305 290
240 2.2 2.0 28.60 1070 0.125 335 270 270 225 350 335
300 2.4 2.2 32.00 1345 0.100 370 295 295 245 395 380
400 2.4 2.2 36.50 1710 0.0778 410 325 335 275 455 435
500 3.0 2.4 40.20 2150 0.0605 435 345 355 295 490 480
630 3.4 2.4 43.50 2564 0.0469 485 390 395 320 560 550
800 3.4 2.6 50.00 3270 0.0367 525 440 420 350 650 640
1000 3.4 2.8 55.00 4060 0.0291 570 490 445 380 735 720

Twin Core, Aluminium Conductor, Unarmoured

Nominal Cross Sectional Area Nominal Thickness Of Insulation Minimum Thickness Of Inner Sheath Nominal Thickness Of Outer Sheath Approx.Overall Diameter Approx.Weight Of Cable Max.DC Conductor Resistance at 20° C CURRENT RATINGS
Direct In Ground In Ducts In Air
Sq.mm mm mm mm mm kg/km Ohm/km Amps Amps Amps
1.5 0.8 0.3 1.8 10.4 135 18.10 18 16 16
2.5* 0.9 0.3 1.8 11.6 194 12.10 25 21 21
4* 1.0 0.3 1.8 13.0 247 7.41 32 27 27
6* 1.0 0.3 1.8 14.0 300 4.61 40 34 35
10* 1.0 0.3 1.8 15.6 351 3.08 55 45 47
16 1.0 0.3 1.8 16.5 364 1.91 70 58 59
25 1.2 0.3 2.0 19.4 480 1.20 90 76 78
35 1.2 0.3 2.0 21.0 600 0.868 110 92 99
50 1.4 0.3 2.0 23.7 750 0.641 135 115 125
70 1.4 0.3 2.0 26.3 900 0.443 160 140 150
95 1.6 0.4 2.2 30.4 1200 0.320 190 170 185
120 1.6 0.4 2.2 32.8 1500 0.253 210 190 210
150 1.8 0.4 2.2 35.8 1614 0.206 240 210 240
185 2.0 0.4 2.2 39.3 2038 0.164 275 240 275
240 2.2 0.5 2.4 44.5 2495 0.125 320 275 325

Three Core, Aluminium Conductor, Unarmoured

Nominal Cross Sectional Area Nominal Thickness Of Insulation Minimum Thickness Of Inner Sheath Nominal Thickness Of Outer Sheath Approx.Overall Diameter Approx.Weight Of Cable Max.DC Conductor Resistance At 20° C CURRENT RATINGS
Direct in Ground In Ducts In Air
Sq.mm mm mm mm mm kg/km Ohm/km Amps Amps Amps
1.5 0.8 0.3 1.8 10.9 160 18.10 16 14 13
2.5* 0.9 0.3 1.8 12.2 221 12.10 21 18 18
4* 1.0 0.3 1.8 13.7 320 7.41 28 23 23
6* 1.0 0.3 1.8 14.8 400 4.61 35 30 30
10* 1.0 0.3 1.8 16.5 420 3.08 46 39 40
16 1.0 0.3 1.8 17.8 440 1.91 60 50 51
25 1.2 0.3 2.0 21.2 630 1.20 76 63 70
35 1.2 0.3 2.0 23.1 706 0.868 92 77 86
50 1.4 0.3 2.0 26.1 903 0.641 110 95 105
70 1.4 0.3 2.2 29.7 1200 0.443 135 115 130
95 1.6 0.4 2.2 33.7 1650 0.320 165 140 155
120 1.6 0.4 2.2 36.7 1950 0.253 185 155 180
150 1.8 0.4 2.4 40.6 2400 0.206 210 175 205
185 2.0 0.5 2.4 44.9 2731 0.164 235 200 240
240 2.2 0.5 2.8 51.0 3509 0.125 275 235 280

3½ Core, Aluminium Conductor, Unarmoured

Nominal Cross Sectional Area Nominal Thickness Of Insulation Minimum Thickness Of Inner Sheath Nominal Thickness Of Outer Sheath Approx. Overall Diameter Approx. Weight Of Cable Max. DC Conductor Resistance At 20°C CURRENT RATINGS
Direct In Ground In Ducts In Air
Main Neutral Main Neutral Main Neutral
Sq.mm Sq.mm mm mm mm mm mm kg/km Ohm/km Ohm/km Amps Amps Amps
25 16 1.2 1.0 0.3 2.0 23.9 750 1.20 1.91 76 63 70
35 16 1.2 1.0 0.3 2.0 26.2 850 0.868 1.91 92 77 86
50 25 1.4 1.2 0.3 2.2 29.5 1150 0.641 1.20 110 95 105
70 35 1.4 1.2 0.4 2.2 33.5 1500 0.443 0.868 135 115 130
95 50 1.6 1.4 0.4 2.2 37.2 1900 0.320 0.641 165 140 155
120 70 1.6 1.4 0.5 2.4 41.2 2300 0.253 0.443 185 155 180
150 70 1.8 1.4 0.5 2.4 43.8 2800 0.206 0.443 210 175 205
185 95 2.0 1.6 0.5 2.6 47.7 3400 0.164 0.320 235 200 240
240 120 2.2 1.6 0.6 3.0 56.6 4244 0.125 0.253 275 235 280

Four Core, Aluminium Conductor, Unarmoured

Nominal Cross Sectional Area Nominal Thickness Of Insulation Minimum Thickness OfInner Sheath Nominal Thickness Of Outer Sheath Approx. Overall Diameter Approx. Weight Of Cable Max. DC Conductor Resistance At 20ºC CURRENT RATINGS
Direct In Ground In Ducts In Air
Sq.mm. mm mm mm mm Kg/Km. Ohm/Km. Amps. Amps. Amps.
1.5 0.8 0.3 1.8 11.7 180 18.10 16 14 13
2.5* 0.9 0.3 1.8 13.1 225 12.10 21 18 18
4* 1.0 0.3 1.8 14.8 269 7.41 28 23 23
6* 1.0 0.3 1.8 16.0 340 4.61 35 30 30
10* 1.0 0.3 1.8 17.9 460 3.08 46 39 40
16 1.0 0.3 2.0 20.3 550 1.91 60 50 51
25 1.2 0.3 2.0 23.9 800 1.20 76 63 70
35 1.2 0.3 2.0 26.0 980 0.868 92 77 86
50 1.4 0.3 2.2 30.1 1300 0.641 110 95 105
70 1.4 0.4 2.2 33.9 1700 0.443 135 115 130
95 1.6 0.4 2.2 38.6 2100 0.320 165 140 155
120 1.6 0.5 2.4 42.5 2600 0.253 185 155 180
150 1.8 0.5 2.6 47.0 3200 0.206 210 175 205
185 2.0 0.6 2.8 52.2 3900 0.164 235 200 240
240 2.2 0.6 3.0 58.9 4900 0.125 275 235 280

Twin Core, Aluminium Conductor, Armoured

Nominal Cross Sectional Area Nominal Thickness Of Insulation Minimum Thickness Of Inner Sheath ARMOUR Min. Thickness Of Outer Sheath Approx. Overall Diameter Approx.Weight Of Cable Max.DC Conductor Resistance at 20ºC CURRENT RATINGS
Galv. Round Steel Wire Nominal Diameter Galv. Flat Steel Strip Nominal Thickness Direct In Ground In Ducts In Air
Sq.mm. mm mm mm mm mm mm Kg./Km. Ohm/Km. Amps. Amps. Amps.
1.5 0.8 0.3 1.4 - 1.24 12.0 400 18.1 18 16 16
2.5* 0.9 0.3 1.4 - 1.24 13.5 425 12.1 25 21 21
4* 1 0.3 1.4 - 1.24 14.5 535 7.41 32 27 27
6* 1 0.3 1.4 - 1.24 15.6 580 4.61 40 34 35
10* 1 0.3 1.4 - 1.24 17.1 700 3.08 55 45 47
16 1 0.3 1.4 - 1.24 16.5 700 1.91 70 58 59
25 1.2 0.3 - 0.8 1.40 17.8 760 1.2 90 76 78
35 1.2 0.3 - 0.8 1.40 19.3 900 0.868 110 92 99
50 1.4 0.3 - 0.8 1.40 22.0 1042 0.641 135 115 125
70 1.4 0.3 - 0.8 1.40 24.0 1255 0.443 160 140 150
95 1.6 0.3 - 0.8 1.40 27.0 1594 0.32 190 170 185
120 1.6 0.3 - 0.8 1.56 29.0 1834 0.253 210 190 210
150 1.8 0.4 - 0.8 1.56 32.4 2138 0.206 240 210 240
185 2 0.4 - 0.8 1.56 35.4 2641 0.164 275 240 275
240 2.2 0.4 - 0.8 1.72 39.6 3204 0.125 320 275 325

Three Core, Aluminium Conductor, Armoured

Nominal Cross Sectional Area Nominal Thickness Of Insulation Minimum Thickness Of Inner Sheath ARMOUR Min. Thickness Of Outer Sheath Approx. Overall Diameter Approx. Weight Of Cable Max.DC Conductor Resistance At 20°C CURRENT RATINGS
Galv. Flat Steel Wire Nominal Diameter Galv. Flat Steel Strip Nominal Thickness Direct In Ground In Ducts In Air
Sq.mm mm mm mm mm mm mm Kg/km Ohm/km Amps Amps Amps
1.5 0.8 0.3 1.4 - 1.24 12.5 440 18.10 16 14 13
2.5* 0.9 0.3 1.4 - 1.24 13.8 500 12.10 21 18 18
4* 1.0 0.3 1.4 - 1.24 15.2 580 7.41 28 23 23
6* 1.0 0.3 1.4 - 1.24 16.4 620 4.61 35 30 30
10* 1.0 0.3 1.4 - 1.40 18.2 750 3.08 46 39 40
16 1.0 0.3 - 0.8 1.40 17.8 766 1.91 60 50 51
25 1.2 0.3 - 0.8 1.4 20.8 920 1.20 76 63 70
35 1.2 0.3 - 0.8 1.4 22.8 1047 0.868 92 77 86
50 1.4 0.3 - 0.8 1.4 26.0 1300 0.641 110 95 105
70 1.4 0.3 - 0.8 1.56 29.2 1700 0.443 135 115 130
95 1.6 0.4 - 0.8 1.56 33.2 2100 0.32 165 140 155
120 1.6 0.4 - 0.8 1.56 35.7 2480 0.253 185 155 180
150 1.8 0.4 - 0.8 1.72 39.6 2900 0.206 210 175 205
185 2.0 0.5 - 0.8 1.72 43.5 3440 0.164 235 200 240
240 2.2 0.5 - 0.8 1.88 48.7 4256 0.125 275 235 280

3½ Core, Aluminium Conductor, Armoured

Nominal Cross Sectional Area Nominal Thickness Of Insulation Minimum Thickness Of Inner Sheath ARMOUR Min. Thickness Of Outer Sheath Approx. Overall Diameter Approx. Weight Of Cable Max.DC Conductor Resistance At 20°C CURRENT RATINGS
Galv. Flat Steel Strip Nominal Thickness Direct In Ground In Ducts In Air
Main Neutral Main Neutral Main Neutral
Sq.mm Sq.mm mm mm mm mm mm mm kg/km Ohm/km Ohm/km Amps Amps Amps
25 16 1.2 1.0 0.3 0.8 1.4 23.0 1048 1.200 1.91 76 63 70
35 16 1.2 1.0 0.3 0.8 1.4 25.3 1221 0.868 1.91 92 77 86
50 25 1.4 1.2 0.3 0.8 1.56 29.5 1600 0.641 1.20 100 95 105
70 35 1.4 1.2 0.4 0.8 1.56 32.8 2000 0.443 0.868 135 115 130
95 50 1.6 1.4 0.4 0.8 1.56 37.2 2349 0.320 0.641 165 140 155
120 70 1.6 1.4 0.4 0.8 1.72 40.5 2900 0.253 0.443 185 155 180
150 70 1.8 1.4 0.5 0.8 1.88 45 3350 0.206 0.443 210 175 205
185 95 2 1.6 0.5 0.8 2.04 49.5 4000 0.164 0.32 235 200 240
240 120 2.22 1.6 0.6 0.8 2.2 55.6 5100 0.125 0.253 275 235 280

Four Core, Aluminium Conductor,Armoured

Nominal Cross Sectional Area Nominal Thickness Of Insulation Minimum Thickness Of Inner Sheath ARMOUR Min. Thickness Of Outer Sheath Approx. Overall Diameter Approx. Weight Of Cable Max.DC Conductor Resistance at 20°C CURRENT RATINGS
Galv. Round Steel Wire Nominal Diameter Galv. Flat Steel Strip Nominal Thickness Direct In Ground In Ducts In Air
Sq.mm mm mm mm mm mm mm kg/km Ohm/km Amps Amps Amps
1.5 0.8 0.3 1.4 - 1.24 13.3 478 18.10 16 14 13
2.5* 0.9 0.3 1.4 - 1.24 14.7 568 12.10 21 18 18
4* 1.0 0.3 1.4 - 1.24 16.3 650 7.41 28 23 23
6* 1.0 0.3 1.4 - 1.24 17.6 730 4.61 35 30 30
10* 1.0 0.3 - 0.8 1.40 18.4 750 3.08 46 39 40
16 1.0 0.3 - 0.8 1.40 20.8 880 1.91 60 50 51
25 1.2 0.3 - 0.8 1.40 24.5 1130 1.20 76 63 70
35 1.2 0.3 - 0.8 1.40 27.0 1480 0.868 92 77 86
50 1.4 0.3 - 0.8 1.56 31.8 1800 0.641 110 95 105
70 1.4 0.4 - 0.8 1.56 35.4 2200 0.443 135 115 130
95 1.6 0.4 - 0.8 1.72 40.3 2700 0.320 165 140 155
120 1.6 0.5 - 0.8 1.88 44.0 3070 0.253 185 155 180
150 1.8 0.5 - 0.8 1.88 48.5 3653 0.206 210 175 205
185 2.0 0.6 - 0.8 2.04 53.9 4410 0.164 235 200 240
240 2.2 0.6 - 0.8 2.36 60.6 5484 0.125 275 235 280

Annealed High Conductivity Solid Copper Conductor, 1.5 sq.mm, Armoured/Unarmoured

Number Of Cores Nominal Thickness Of Insulation Min. Thickness Of Insulation ARMOUR Nominal Sheath Thickness For Unarmoured Minimum Sheath Thickness For Armoured Approx. Overall Diameter Approx. Weight Of Cable Max.DC Conductor Resistance At 20°C CURRENT RATINGS
Galv. Round Steel Wire Nominal Diameter Galv. Flat Steel Strip Nominal Thickness Direct In Ground In Ducts In Air
Unarmoured Armoured Unarmoured Armoured
No. mm mm mm mm mm mm mm mm Kg/km kg/km Ohm/km Amps Amps Amps
2 0.8 0.3 1.4 - 1.8 1.24 10.4 12.0 170 390 12.1 23 20 20
3 0.8 0.3 1.4 - 1.8 1.24 10.9 12.7 195 430 12.1 21 17 17
4 0.8 0.3 1.4 - 1.8 1.24 11.7 13.3 225 480 12.1 21 17 17
5 0.8 0.3 1.4 - 1.8 1.24 12.6 14.2 275 560 12.1 21 17 17
6 0.8 0.3 1.4 - 1.8 1.24 13.4 15.0 325 625 12.1 15 13 13
7 0.8 0.3 1.4 - 1.8 1.24 13.4 15.0 345 645 12.1 14 13 13
10 0.8 0.3 1.4 - 1.8 1.40 16.5 18.2 460 810 12.1 13 11 11
12 0.8 0.3 - 0.8 1.8 1.24 17.0 17.3 520 815 12.1 12 10 10
14 0.8 0.3 - 0.8 1.8 1.40 17.7 18.3 580 885 12.1 11 10 10
16 0.8 0.3 - 0.8 2.0 1.40 19.0 19.1 680 980 12.1 11 9 9
19 0.8 0.3 - 0.8 2.0 1.40 19.9 20.0 780 1100 12.1 10 9 9
24 0.8 0.3 - 0.8 2.0 1.40 23.0 23.0 950 1300 12.1 9 8 8
30 0.8 0.3 - 0.8 2.0 1.40 24.2 24.3 1150 1540 12.1 9 7 7
37 0.8 0.3 - 0.8 2.0 1.40 26.0 26.0 1350 1800 12.1 8 7 7
61 0.8 0.3 - 0.8 2.2 1.40 32.7 38.6 2100 2670 12.1 7 6 6

Annealed High Conductivity Solid Copper Conductor, 2.5 sq.mm., Armoured/Unarmoured

Number Of Cores Nominal Thickness Of Insulation Min. Thickness Of Insulation ARMOUR Nominal Sheath Thickness For Unarmoured Minimum Sheath Thickness For Armoured Approx. Overall Diameter Approx. Weight Of Cable Max.DC Conductor Resistance At 20°C CURRENT RATINGS
Galv. Round Steel Wire Nominal Diameter Galv. Flat Steel Strip Nominal Thickness Direct In Ground In Ducts In Air
Unarmoured Armoured Unarmoured Armoured
No. mm mm mm mm mm mm mm mm Kg/km kg/km Ohm/km Amps Amps Amps
2 0.9 0.3 1.4 - 1.8 1.24 11.6 13.2 210 460 7.41 32 27 27
3 0.9 0.3 1.4 - 1.8 1.24 12.2 13.8 254 515 7.41 27 24 24
4 0.9 0.3 1.4 - 1.8 1.24 13.1 14.7 305 590 7.41 24 24 24
5 0.9 0.3 1.4 - 1.8 1.24 14.2 15.8 356 665 7.41 27 24 24
6 0.9 0.3 1.4 - 1.8 1.24 15.2 16.8 415 740 7.41 20 18 18
7 0.9 0.3 1.4 - 1.8 1.24 15.2 16.8 445 775 7.41 20 17 17
10 0.9 0.3 - 0.8 2.0 1.40 19.3 19.4 615 940 7.41 18 15 15
12 0.9 0.3 - 0.8 2.0 1.40 19.8 20.0 710 1014 7.41 17 14 14
14 0.9 0.3 - 0.8 2.0 1.40 20.8 20.9 790 1130 7.41 16 13 13
16 0.9 0.3 - 0.8 2.0 1.40 21.9 21.9 900 1240 7.41 15 13 13
19 0.9 0.3 - 0.8 2.0 1.40 22.9 23.0 1025 1380 7.41 14 14 12
24 0.9 0.3 - 0.8 2.0 1.40 22.6 26.6 1245 1730 7.41 13 11 11
30 0.9 0.3 - 0.8 2.0 1.56 28.1 28.5 1520 2000 7.41 12 10 10
37 0.9 0.4 - 0.8 2.2 1.56 30.8 30.8 1850 2350 7.41 11 10 10
61 0.9 0.4 - 0.8 2.2 1.56 38.1 38.0 2910 3600 7.41 9 8 8

Conductor Resistance Of Plain Copper Conductors Used For Heavy Duty Cables As Per IS : 8130-1984

Size Conductor Construction Max. Cond. Resistance Of Single Core & Multi Core At 20ºC Size Conductor Construction Max. Cond. Resistance Of Single Core & Multi Core At 20ºC
Sq.mm. Sq.mm.
Ohm/Km Ohm/Km
1.5* 1/1.38 12.100 120 37/2.03 0.153
2.5* 1/1.78 7.410 150 37/2.24 0.124
4.0* 1/2.24 4.610 185 37/2.50 0.0991
6.0* 1/2.76 3.080 240 61/2.24 0.0754
10 7/1.35 1.830 300 61/2.50 0.0601
16 7/1.70 1.150 400 61/2.85 0.0470
25 7/2.14 0.727 500 61/3.20 0.0366
35 7/2.50 0.524 630 91/3.00 0.0283
50 7/3.00 0.387 - - -
70 19/2.14 0.268 800 127/2.83 0.0221
95 19/2.50 0.193 1000 127/3.16 0.0176

* Solid Conductor

Current Rating Of Copper Armoured/Unarmoured Cables 650/1100 Grade In Air

Area Twin Core 3, 3 1/2, 4 Core Area Twin Core 3, 3 1/2, 4 Core
Sq.mm. Amp Amp Sq.mm. Amp Amp
1.5 20 17 70 195 165
2.5 27 24 95 230 200
4 35 30 120 265 235
6 45 39 150 305 265
10 60 52 185 350 305
16 78 66 240 410 355
25 105 90 300 465 400
35 125 110 400 530 455
50 155 135 - - -