
Conductor | Class 2 stranded copper conductor according to BS EN 60228 |
Conductor Screen | Semi-conductive XLPE (Cross-Linked Polyethylene) |
Insulation | XLPE (Cross-Linked Polyethylene) |
Insulation Screen | Semi-conductive XLPE (Cross-Linked Polyethylene) |
Metallic Screen | Individual or collective overall copper tape screen according to BS 6622 |
Filler | PET (Polyethylene Terephthalate) fibres |
Separator | Binding tape |
Bedding | PVC (Polyvinyl Chloride) |
Armour | Single core: AWA (Aluminium Wire Armoured) Multi-core: SWA (Steel Wire Armoured) |
Sheath | PVC (Polyvinyl Chloride) |
No. of Cores | Nominal Cross Sectional Area mm² | Nominal Diameter | Nominal Weight kg/km | ||
---|---|---|---|---|---|
Under Armour | Over Armour | Overall | |||
1 | 50 | 21.7 | 24.9 | 28.5 | 1200 |
1 | 70 | 23 | 26.2 | 30 | 1500 |
1 | 95 | 24.7 | 27.9 | 31.7 | 1600 |
1 | 120 | 26.7 | 29.9 | 33.9 | 2100 |
1 | 150 | 27.5 | 31.5 | 35.7 | 2500 |
1 | 185 | 29.3 | 33.3 | 37.5 | 2900 |
1 | 240 | 31.6 | 35.6 | 40 | 3600 |
1 | 300 | 34.6 | 38.6 | 43 | 4300 |
1 | 400 | 37 | 41 | 45.8 | 5200 |
1 | 500 | 40.5 | 45.5 | 50.5 | 6500 |
1 | 630 | 44.6 | 49.6 | 54.8 | 8000 |
1 | 800 | 48.8 | 53.8 | 59.2 | 9850 |
1 | 1000 | 53.5 | 58.5 | 64.3 | 12100 |
3 | 25 | 39 | 44 | 48.8 | 4300 |
3 | 35 | 41.6 | 46.6 | 51.6 | 4700 |
3 | 50 | 44.4 | 49.4 | 54.6 | 5300 |
3 | 70 | 48.1 | 53.1 | 58.5 | 6300 |
3 | 95 | 52 | 57 | 62.6 | 7300 |
3 | 120 | 55.6 | 60.6 | 66.6 | 8400 |
3 | 150 | 58.6 | 63.6 | 69.8 | 9600 |
3 | 185 | 62.7 | 67.7 | 74.1 | 11000 |
3 | 240 | 68.1 | 74.4 | 81.2 | 14000 |
3 | 300 | 73.5 | 79.8 | 87 | 16600 |
Nominal Cross Sectional Area mm² | Minimum No. Of Wires In Conductor | Maximum Resistance of Conductor At 20ºC | |||||
---|---|---|---|---|---|---|---|
Circular | Circular Compacted | Shaped | Annealed Copper Conductor | ||||
Cu | Al | Cu | Al | Cu | Al | Plain Wires ohms/km | |
25 | 7 | 7 | 6 | 6 | 6 | 6 | 0.727 |
35 | 7 | 7 | 6 | 6 | 6 | 6 | 0.524 |
50 | 19 | 19 | 12 | 12 | 12 | 12 | 0.387 |
70 | 19 | 19 | 12 | 12 | 12 | 12 | 0.268 |
95 | 19 | 19 | 15 | 15 | 15 | 15 | 0.193 |
120 | 37 | 37 | 18 | 15 | 18 | 15 | 0.153 |
150 | 37 | 37 | 18 | 15 | 18 | 15 | 0.124 |
185 | 37 | 37 | 30 | 30 | 30 | 30 | 0.0991 |
240 | 37 | 37 | 34 | 30 | 34 | 30 | 0.0754 |
300 | 61 | 61 | 34 | 30 | 34 | 30 | 0.0601 |
400 | 61 | 61 | 53 | 53 | 53 | 53 | 0.047 |
500 | 61 | 61 | 53 | 53 | 53 | 53 | 0.0366 |
630 | 91 | 91 | 53 | 53 | 53 | 53 | 0.0283 |
800 | 91 | 91 | 53 | 53 | - | - | 0.0221 |
1000 | 91 | 91 | 53 | 53 | - | - | 0.0176 |
Nominal Cross Sectional Area mm² | Continuous Current Rating | |||||
---|---|---|---|---|---|---|
In Ground Amps | In Ducts Amps | In Air Amps | ||||
Trefoil | Flat | Trefoil | Flat | Trefoil | Flat | |
50 | 220 | 230 | 220 | 220 | 250 | 300 |
70 | 270 | 280 | 260 | 270 | 310 | 370 |
95 | 320 | 335 | 305 | 325 | 375 | 460 |
120 | 360 | 380 | 340 | 370 | 430 | 530 |
150 | 410 | 430 | 375 | 410 | 490 | 600 |
185 | 455 | 485 | 410 | 460 | 550 | 690 |
240 | 520 | 560 | 470 | 540 | 650 | 820 |
300 | 580 | 640 | 500 | 610 | 740 | 940 |
400 | 650 | 730 | 530 | 690 | 840 | 1100 |
500 | 710 | 830 | 570 | 780 | 930 | 1280 |
630 | 760 | 940 | 620 | 890 | 1040 | 1480 |
800 | 810 | 1060 | 660 | 990 | 1140 | 1690 |
1000 | 860 | 1170 | 690 | 190 | 1230 | 1900 |
50 | 210 | 210 | 180 | 180 | 220 | 220 |
70 | 250 | 250 | 215 | 215 | 270 | 270 |
95 | 300 | 300 | 255 | 255 | 330 | 330 |
120 | 340 | 340 | 290 | 290 | 380 | 380 |
150 | 380 | 380 | 330 | 330 | 430 | 430 |
185 | 430 | 430 | 370 | 370 | 490 | 490 |
240 | 500 | 500 | 430 | 430 | 570 | 570 |
300 | 540 | 540 | 470 | 470 | 650 | 650 |
Air Temperature °C | 25 | 30 | 35 | 40 | 45 | 50 | 55 |
DE-RATING FACTOR | 1.00 | 0.96 | 0.92 | 0.88 | 0.83 | 0.78 | 0.73 |
Ground Temperature | 10 | 15 | 20 | 25 | 30 | 35 | 40 |
DE-RATING FACTOR | 1.03 | 1.00 | 0.97 | 0.93 | 0.89 | 0.86 | 0.82 |
Ground Thermal Resistivity | 0.9 | 1.0 | 1.2 | 1.5 | 2.0 | 2.5 | 3.0 |
DE-RATING FACTOR | 1.06 | 1.04 | 1.00 | 0.92 | 0.82 | 0.74 | 0.68 |
Depth Of Laying | 0.80 | 1.00 | 1.25 | 1.50 | 1.75 | 2.0 | 2.50 |
DE-RATING FACTOR | 1.00 | 0.97 | 0.95 | 0.94 | 0.93 | 0.91 | 0.90 |
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BS 7835 XLPE LSZH 6.35/11 (12)kV Cable BS 6622 XLPE PVC 19/33 (36)kV CableNA2XS(FL)2Y Aluminium Conductor XLPE PE- 18/30 (36)kV Cable
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NA2XS(F)2Y Aluminium Conductor XLPE PE – 18/30k (36)V Cable
NA2XS(F)2Y Aluminium Conductor XLPE PE – 12/20 (24)kV Cable
NA2XS(F)2Y Aluminium Conductor XLPE PE – 6/10 (12)kV Cable
NA2XS2Y Aluminium Conductor XLPE PE – 18/30k (36)V Cable
NA2XS2Y Aluminium Conductor XLPE PE – 12/20 (24)kV Cable
NA2XS2Y Aluminium Conductor XLPE PE – 6/10 (12)kV Cable
N2XS(FL)2Y – 12/20 (24)kV Cable
N2XS(FL)2Y – 6/10 (12)kV Cable
N2XS(F)2Y – 18/30 (36)kV Cable
N2XS(F)2Y XLPE PE – 12/20 (24)kV Cable
N2XS(F)2Y XLPE PE – 6/10 (12)kV Cable
N2XS2Y XLPE PE – 18/30 (36)kV Cable
N2XS2Y XLPE PE – 12/20 (24)kV Cable
N2XS2Y XLPE PE – 6/10 (12)kV Cable
NA2XSY Aluminium Conductor XLPE PVC – 18/30 (36)kV Cable
NA2XSY Aluminium Conductor XLPE PVC – 12/20 (24)kV Cable
NA2XSY Aluminium Conductor XLPE PVC – 6/10 (12)kV Cable
N2XSEY XLPE PVC – 6/10 (12)kV Cable
N2XSY XLPE PVC – 18/30 (36)kV Cable
N2XSY XLPE PVC – 12/20 (24)kV Cable
N2XSY XLPE PVC – 6/10 (12)kV Cable
BS 6622 XLPE MDPE 6.35/11 (12)kV Cable
BS 6622 XLPE PVC 6.35/11 (12)kV Cable
BS 7835 XLPE LSZH 6.35/11 (12)kV
BS 7835 XLPE LSZH 19/33 (36)kV
BS 6622 XLPE PVC 19/33 (36)kV