CONSTRUCTION OF ELASTOMER / RUBBER CABLES AS PER IS: 9968 PT-I/II
| S.No | No. of Cores | Colour of Cores | Numbers |
|---|---|---|---|
| 1. | Single | Red, Black, White, Yellow & Blue | -- |
| 2. | Twin | Red & Black | 1,2 |
| 3. | Three | Red, Yellow & Blue | 1,2,3 |
| 4. | Four | Red, Yellow, Blue & Green | 1,2,3,4 |
| 5. | Five | Red, Yellow, Blue, Black & Green | 1,2,3,4,5 |
TECHNICAL DATA
| Nominal Cross-Sectional Area Of Conductor | Nominal Thickness of Insulation | Nominal Thickness of Sheath | Maximum Overall Diameter | Maximum Resistance of Conductor at 20° c | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Single-Core | Twin-Core | Three-Core | Four-Core | Single-Core | Twin-Core | Three-Core | Four-Core | Plain Wires ohm/km | Tinned Wires ohm/km | ||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | ||
| mm² | mm | mm | mm | mm | mm | mm | mm | mm | mm | ||
| 0.5 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 7.0 | 11.7 | 12.5 | 13.6 | 39.0 | 40.1 |
| 0.75 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 7.2 | 12.2 | 13.0 | 14.3 | 26.0 | 26.7 |
| 1 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 7.4 | 12.6 | 13.4 | 14.8 | 19.5 | 20.0 |
| 1.5 | 1.0 | 1.0 | 1.0 | 1.1 | 1.1 | 7.7 | 13.2 | 14.2 | 15.5 | 13.3 | 13.7 |
| 2.5 | 1.0 | 1.0 | 1.1 | 1.1 | 1.1 | 8.2 | 14.2 | 15.4 | 16.5 | 7.98 | 8.21 |
| 4 | 1.0 | 1.0 | 1.2 | 1.2 | 1.2 | 8.8 | 15.7 | 16.7 | 18.3 | 4.95 | 5.09 |
ELASTOMER SHEATHED FLEXIBLE CABLES
| Nominal Cross-Sectional Area Of Conductor | Nominal Thickness Of Insulation | Nominal Thickness Of Sheath | Maximum Resistance Of Conductor At 20° c | |||||
|---|---|---|---|---|---|---|---|---|
| Single-Core | Twin-Core | Three-Core | Four-Core | Five-Core | Plain Wires ohm/km | Tinned Wires ohm/km | ||
| mm² | mm | mm | mm | mm | mm | mm | ||
| 6 | 1.0 | 1.6 | 2.0 | 2.1 | 2.5 | 2.5 | 3.3000 | 3.3900 |
| 10 | 1.2 | 1.8 | 2.4 | 2.5 | 2.7 | 2.9 | 1.9100 | 1.9500 |
| 16 | 1.2 | 1.9 | 2.5 | 2.7 | 2.9 | 3.2 | 1.2000 | 1.2400 |
| 25 | 1.4 | 2.0 | 3.2 | 3.6 | 3.4 | -- | 0.7800 | 0.7950 |
| 35 | 1.4 | 2.2 | 3.3 | 3.4 | 3.5 | -- | 0.5540 | 0.5650 |
| 50 | 1.6 | 2.4 | 3.5 | 3.6 | 3.7 | -- | 0.3860 | 0.3930 |
| 70 | 1.6 | 2.6 | 3.6 | 3.7 | 3.9 | -- | 0.2720 | 0.2770 |
| 95 | 1.8 | 2.8 | 3.8 | 4.0 | 4.1 | -- | 0.2060 | 0.2100 |
| 120 | 1.8 | 3.0 | 4.0 | 4.1 | 4.3 | -- | 0.1610 | 0.1640 |
| 150 | 2.0 | 3.2 | 4.2 | 4.3 | 4.5 | -- | 0.1290 | 0.1320 |
| 185 | 2.2 | 3.4 | 4.3 | 4.5 | 4.8 | -- | 0.1060 | 0.1080 |
| 240 | 2.4 | 3.5 | 4.6 | 4.8 | 5.1 | -- | 0.0801 | 0.0817 |
| 300 | 2.6 | 3.5 | 4.9 | 5.1 | 5.4 | -- | 0.0641 | 0.0654 |
| 400 | 2.8 | 3.8 | 5.2 | 5.4 | 5.8 | -- | 0.0486 | 0.0495 |
| 500 | 3.0 | 4.0 | -- | - | -- | -- | 0.0384 | 0.0391 |
| 630 | 3.0 | 4.1 | -- | -- | -- | -- | 0.0287 | 0.0292 |
CURRENT CARRYING CAPACITY (AMPS) FOR MULTI CORE CABLES
| Nominal Cross-Sectional Area Of Conductor | Nominal Diameter Of Wires | Approx Over All Dia Of Conductor | Max.Allowable Resistance At 20° C For Tinned Wires | Current Rating D.C. In Single Or Three Phase (A) | Approx Voltage Drop Per 10 Meter Run(Volts) | |
|---|---|---|---|---|---|---|
| Single Core | Multi Core | |||||
| mm² | mm | mm | ohms/mm | ohms/mm | Amp | Volts |
| 0.5 | 16/0.20 | 0.93 | 38.20 | 40.10 | 3 | 3.30 |
| 0.75 | 24/0.20 | 1.14 | 25.40 | 26.70 | 6 | 3.70 |
| 1.0 | 32/0.20 | 1.32 | 19.10 | 20.00 | 10 | 4.50 |
| 1.5 | 30/0.25 | 1.60 | 13.00 | 13.70 | 15 | 4.00 |
| 2.5 | 50/0.25 | 2.00 | 7.82 | 8.21 | 20 | 2.90 |
| 4.0 | 56/0.30 | 2.60 | 4.85 | 5.09 | 25 | 2.60 |
ELASTOMER INSULATED, SINGLE, TWIN-CORE AND THREE-CORE TEXTILE BRAIDED FLEXIBLE CORDS
| Nominal Cross-Sectional Area Of Conductor | Nominal Thickness Of Insulation | Overall Diameter Of Braided Core mm |
Overall Diameter Of Braided Core mm |
Overall Diameter Of Braided Core mm |
Maximum Resistance Of Conductor At 20°C | |
|---|---|---|---|---|---|---|
| Plain Wires ohm/km | Tinned Wires ohm/km | |||||
| Single Core | Two Core | Three Core | ||||
| mm² | mm | mm | mm | mm | ||
| 0.5 | 1.0 | 4.9 | 8.3 | 9.0 | 39.0 | 40.1 |
| 0.75 | 1.0 | 5.1 | 8.7 | 9.5 | 26.0 | 26.7 |
| 1 | 1.0 | 5.3 | 9.1 | 9.9 | 19.5 | 20.0 |
| 1.5 | 1.0 | 5.6 | 9.7 | 10.5 | 13.3 | 13.7 |
| 2.5 | 1.0 | 6.0 | 10.5 | 11.3 | 7.98 | 8.21 |
| 4 | 1.0 | - | 11.7 | 12.6 | 4.95 | 5.09 |
CURRENT CARRYING CAPACITY (AMPS) FOR MULTI CORE CABLES
| Nominal Cross Sectional Area Of Conductor |
Nominal No. And Diameter Of Wire | Approx Over All Dia Of Conductor | Max. Resistance At 20°C | Current Rating GP Elastomer Insulated (VIR) | Current Rating H.R. EPR /- Cables |
Voltage Drop Three Phase |
||
|---|---|---|---|---|---|---|---|---|
| Multi Core/ Single Core | DC or Single Phase AC |
Three Phase | DC or Single phase AC |
Three Phase |
DC | |||
| (mm2) | (No./mm) | (mm) | (ohm/km) | (A) | (A) | (A) | (A) | (mV) |
| 4 | 56/0.30 | 2.60 | 5.09 | 33 | 28 | 40 | 31 | 11 |
| 6 | 84/0.30 | 3.30 | 3.39 | 42 | 36 | 51 | 44 | 7.3 |
| 10 | 80/0.40 | 4.20 | 1.95 | 57 | 49 | 70 | 60 | 4.2 |
| 16 | 126/0.40 | 5.70 | 1.24 | 76 | 66 | 93 | 81 | 2.7 |
| 25 | 196/0.40 | 7.10 | 0.795 | 100 | 85 | 120 | 105 | 1.7 |
| 35 | 276/0.40 | 8.50 | 0.565 | 120 | 100 | 145 | 125 | 1.2 |
| 50 | 396/0.40 | 10.30 | 0.393 | 150 | 130 | 185 | 160 | 0.85 |
| 70 | 360/0.50 | 12.40 | 0.277 | 180 | 160 | 225 | 195 | 0.80 |
| 95 | 475/0.50 | 14.50 | 0.210 | 220 | 190 | 270 | 235 | 0.45 |
| 120 | 608/0.50 | 16.00 | 0.164 | 250 | 220 | 306 | 270 | 0.36 |
| 150 | 756/0.50 | 18.00 | 0.132 | 290 | 250 | 355 | 306 | 0.29 |
| 185 | 925/0.50 | 20.00 | 0.108 | 330 | 285 | 405 | 350 | 0.23 |
| 240 | 1221/0.50 | 23.00 | 0.0817 | 390 | 330 | 465 | 405 | 0.18 |
| 300 | 1525/0.50 | 26.00 | 0.0654 | 435 | 385 | 530 | 470 | 0.14 |
| 400 | 2013/0.50 | 30.50 | 0.0495 | 520 | 432 | 630 | 538 | 0.11 |
| 500 | 1769/0.60 | 33.00 | 0.0391 | 590 | 526 | 720 | 642 | 0.09 |
| 630 | 2230/0.60 | 37.00 | 0.0292 | 600 | 596 | 830 | 728 | 0.07 |
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