RG7H1R

Application

The single core cables are designed for distribution of electrical power with nominal voltage Uo/U ranging from 1.8/3KV to 18/30KV and frequency 50Hz. They are suitable for installation mostly in power supply stations, indoors and in cable ducts, outdoors, underground and in water as well as for installation on cable trays for industries, switchboards and power stations.

Standards

IEC 60502 / CEI 20-13

Flame Retardant acc.to:

DIN VDE 0482 part 265-2-1

EN 50265-2-1

EN 60332-1-2

Construction

RG7H1R RG7H1R - Medium Voltage Cable

Conductor : Plain annealed copper with IEC 60228 class 2.

Conductor Screen : The conductor screen consists of an extruded layer of non metallic, semi-conducting compound firmly bonded to the insulation to exclude all air voids.

Insulation : Rubber, type G7 .

Insulaton Screen : The insulation screen consists of an extruded layer of non metallic, semiconducting compound extruded over the insulation. The extruded semi-conducting layer shall consist of bonded or cold strippable semi-conducting compound capable of removal for jointing or terminating. As an option, a semi-conducting tape may be applied over the extruded semi-conducting layer as a bedding for the metallic layer. The minimum thickness is 0.3 mm and the maximum resistivity is 500 Ohm-m at 90°C. The screen is tightly fitted to the insulation to exclude all air voids and can be easily hand stripped on site.

Over Sheath : Red(RAL 3000), PVC, type RZ, other dimensions and colours available on request.

Table 2a. Total Cross Section and Max. DC Resistance of Copper Wire Screen

Nom. Cross Section Area of Conductor Total Cross Section Max. DC Resistance at 20 ℃
3.6/6KV (Um=7.2KV) 6/10KV (Um=12KV) 8.7/15KV (Um=17.5KV) 12/20KV (Um=24KV) 18/30KV (Um=36KV)
mm² mm mm mm mm mm Ω
10 10 10 10 10 10 1.075
16 16 16 16 16 16 1.075
25 16 16 16 16 16 1.075
35 16 16 16 16 16 1.075
50 16 16 16 16 16 1.075
70 16 16 16 16 16 1.075
95 16 16 16 16 16 1.075
120 16 16 16 16 16 1.075
150 25 25 25 25 25 0.688
185 25 25 25 25 25 0.688
240 25 25 25 25 25 0.688
300 25 25 25 25 25 0.688
400 35 35 35 35 35 0.491
500 35 35 35 35 35 0.491
630 35 35 35 35 35 0.491
800 50 50 50 50 50 0.344
1000 50 50 50 50 50 0.344

Table 2a. Total Cross Section and Max. DC Resistance of Copper Tape Screen (0.1mm)

Nom. Cross Section Area of Conductor Total Cross Section & Max. DC Resistance
3.6/6KV (Um=7.2KV) 6/10KV (Um=12KV) 8.7/15KV (Um=17.5KV) 12/20KV (Um=24KV) 18/30KV (Um=36KV)
Total Cross Section Max. DC Resistance at 20 ℃ Total Cross Section Max. DC Resistance at 20 ℃ Total Cross Section Max. DC Resistance at 20 ℃ Total Cross Section Max. DC Resistance at 20 ℃ Total Cross Section Max. DC Resistance at 20 ℃
mm² mm   mm   mm   mm   mm  
10 4.7 3.646 - - - - - - - -
16 5.1 3.342 5.9 2.925 - - - - - -
25 5.7 3.025 6.4 2.679 7.3 2.350 8.1 2.114 - -
35 6.2 2.796 6.9 2.498 7.8 2.210 8.6 2.000 - -
50 6.7 2.568 7.4 2.314 8.3 2.064 9.1 1.880 11.2 0.579
70 7.4 2.314 8.2 2.106 9.1 1.897 9.9 1.740 11.9 0.543
95 8.2 2.095 8.9 2.925 9.8 1.748 10.7 1.614 12.7 0.510
120 9.0 1.905 9.8 2.679 10.7 1.613 11.5 1.498 13.5 0.479
150 9.7 1.781 10.4 2.498 11.3 1.523 12.1 1.420 14.2 0.458
185 10.6 1.626 11.2 2.314 12.2 1.407 12.9 1.335 14.9 0.434
240 11.7 1.465 12.4 2.106 2.106 1.294 14.1 1.219 16.2 0.401
300 12.9 1.334 13.4 1.923 1.923 1.204 15.1 1.139 17.1 0.378
400 14.3 1.205 14.6 1.761 1.761 1.110 16.3 1.054 18.4 0.353
500 15.7 1.094 16.2 1.655 1.655 1.005 17.5 0.982 20.0 0.325
630 17.3 0.992 18.9 1.540 1.540 0.918 19.5 0.880 21.6 0.300
800 20.3 0.849 20.4 1.388 21.3 0.807 22.1 0.777 24.2 0.268
1000 22.3 0.771 22.4 1.285 23.3 0.738 24.1 0.713 26.2 0.248

Physical Properties

Temperature Range : -15°C / +90°C

Max Short Circuit Temperature : +250°C

Min Installation Temperature : 0°C

Min Bending Radius : 12 x OD

Max. Tensile Stress : 60 N/mm²

Table 4. Nominal /Operating /Testing Voltages

Rated Voltage Uo/U Operating Voltage (Um) Testing Voltage (rms)
1.8/3KV 3.6KV 6KV
3.6/6KV 7.2KV 11KV
6/10KV 12KV 17KV
8.7/15KV 17.5KV 24KV
12/20KV 24KV 29KV
18/30KV 36KV 45KV

*21/35KV and 26/35KV power frequency voltage test can be made under the following conditions: 2.5Uo x 30mins or 3.0Uo x 15mins. Numbers in brackets refer to the test values for 3.0Uo x 1.5mins.

Single Core 1.8/3KV (Um=3.6KV)

Dimensional Data

Nom. Cross- Section Area Outer-∅ ca.mm Cable Weight Approx AWG
n×mm² ± 10% kg/km no.*)
1×10 14.5 290 8
1×16 15.2 350 6
1×25 16.5 450 4
1×35 17.5 550 2
1×50 18.5 670 1
1×70 20 880 2/0
1×95 22 1100 3/0
1×120 23.3 1400 4/0
1×150 24.7 1650 250 MCM
1×185 26.5 2000 350 MCM
1×240 29 2550 450 MCM
1×300 31.6 3150 550 MCM
1×400 34.6 3950 750 MCM
1×500 38.3 5050 900 MCM
1×630 43.1 6300 1150 MCM

Electrical Data

Nom. Cross- Section Area D C Resistance CU A C Resistance CU Short Circuit Rating of Conductor CU 1 sec Capaci- tance Charging Current Reactance Inductance Impedance
Trefoil Flat Spaced Trefoil Flat Spaced Trefoil Flat Spaced
CU CU
mm² µΩ/m µΩ/m kA pF/m mA/m µΩ/m nH/m µΩ/m µΩ/m
10 1830 2330 1.4 182 0.27 151 201 384 558 2332 2332
16 1150 1460 2.2 201 0.29 140 193 362 546 1462 1478
25 727 927 3.6 222 0.32 131 185 345 535 936 952
35 524 668 5.0 251 0.35 122 178 327 524 679 695
50 387 494 6.8 281 0.39 116 172 313 514 511 527
70 268 343 9.8 341 0.45 110 165 300 495 364 386
95 193 248 13.3 397 0.50 104 160 287 485 272 300
120 153 196 17.2 430 0.55 104 159 283 480 225 257
150 124 159 21.2 464 0.59 100 156 280 475 193 229
185 99 128 26.6 513 0.65 98 154 274 465 165 206
240 75 98 34.9 573 0.70 94 150 267 459 140 185
300 60 80 43.8 652 0.72 91 147 260 455 128 174
400 47 64 57.3 727 0.75 90 147 253 445 113 164
500 37 51 72.3 754 0.79 89 145 248 435 105 158
630 28 42 91.2 786 0.87 86 143 245 425 97 151

Single Core 3.6/6KV (Um=7.2KV)

Dimensional Data

Nom. Cross-Section Area Outer-∅ ca.mm Cable Weight Approx AWG
n×mm² ± 10% kg/km no.*)
1×10 17 330 8
1×16 17.5 410 6
1×25 18.8 510 4
1×35 19.8 630 2
1×50 21.4 750 1
1×70 23.3 1010 2/0
1×95 24.8 1250 3/0
1×120 26.3 1500 4/0
1×150 27.8 1800 250 MCM
1×185 29.5 2100 350 MCM
1×240 32.1 2650 450 MCM
1×300 34.8 3200 550 MCM
1×400 37.8 4000 750 MCM
1×500 41.8 5100 900 MCM
1×630 45.8 6500 1150 MCM

Electrical Data

Nom. Cross- Section Area D C Resistance CU A C Resistance CU Short Circuit Rating of Conductor CU 1 sec Capaci- tance Charging Current Reactance Inductance Impedance
Trefoil Flat Spaced Trefoil Flat Spaced Trefoil Flat Spaced
CU CU
mm² µΩ/m µΩ/m kA pF/m mA/m µΩ/m nH/m µΩ/ m µΩ/ m
10 1830 2330 1.4 182 0.27 151 201 384 558 2332 2332
16 1150 1460 2.2 201 0.29 140 193 362 546 1462 1478
25 727 927 3.6 222 0.32 131 185 345 535 936 952
35 524 668 5.0 251 0.35 122 178 327 524 679 695
50 387 494 6.8 281 0.39 116 172 313 514 511 527
70 268 343 9.8 341 0.45 110 165 300 495 364 386
95 193 248 13.3 397 0.50 104 160 287 485 272 300
120 153 196 17.2 430 0.55 104 159 283 480 225 257
150 124 159 21.2 464 0.59 100 156 280 475 193 229
185 99 128 26.6 513 0.65 98 154 274 465 165 206
240 75 98 34.9 573 0.70 94 150 267 459 140 185
300 60 80 43.8 652 0.72 91 147 260 455 128 174
400 47 64 57.3 727 0.75 90 147 253 445 113 164
500 37 51 72.3 754 0.79 89 145 248 435 105 158
630 28 42 91.2 786 0.87 86 143 245 425 97 151

Single Core 6/10KV (Um=12KV)

Dimensional Data

Nom. Cross- Section Area Outer-∅ ca.mm Cable Weight Approx AWG
n×mm² ± 10% kg/km no.*)
1×10 19.9 420 8
1×16 20.4 530 6
1×25 21.8 650 4
1×35 23.3 760 2
1×50 24.8 880 1
1×70 26.3 1100 2/0
1×95 27.8 1400 3/0
1×120 29.3 1630 4/0
1×150 30.8 1900 250 MCM
1×185 32.8 2350 350 MCM
1×240 35.3 2900 450 MCM
1×300 37.8 3500 550 MCM
1×400 40.8 4300 750 MCM
1×500 44.3 5420 900 MCM
1×630 54.8 6850 1150 MCM

Electrical Data

Nom. Cross- Section Area D C Resistance CU A C Resistance CU Short Circuit Rating of Conductor CU 1 sec Capaci- tance Charging Current Reactance Inductance Impedance
Trefoil Flat Spaced Trefoil Flat Spaced Trefoil Flat Spaced
CU CU
mm² µΩ/m µΩ/m kA pF/m mA/m µΩ/m nH/m µΩ/ m µΩ/ m
16 1150 1460 2.2 201 0.29 140 193 362 546 1462 1478
25 727 927 3.6 222 0.32 131 185 345 535 936 952
35 524 668 5.0 251 0.35 122 178 327 524 679 695
50 387 494 6.8 281 0.39 116 172 313 514 511 527
70 268 343 9.8 341 0.45 110 165 300 495 364 386
95 193 248 13.3 397 0.50 104 160 287 485 272 300
120 153 196 17.2 430 0.55 104 159 283 480 225 257
150 124 159 21.2 464 0.59 100 156 280 475 193 229
185 99 128 26.6 513 0.65 98 154 274 465 165 206
240 75 98 34.9 573 0.70 94 150 267 459 140 185
300 60 80 43.8 652 0.72 91 147 260 455 128 174
400 47 64 57.3 727 0.75 90 147 253 445 113 164
500 37 51 72.3 754 0.79 89 145 248 435 105 158
630 28 42 91.2 786 0.87 86 143 245 425 97 151

Single Core 8.7/15KV (Um=17.5KV)

Dimensional Data

Nom. Cross- Section Area Outer-∅ ca.mm Cable Weight Approx AWG
n×mm² ± 10% kg/km no.*)
1×16 23 650 6
1×25 24.3 750 4
1×35 25.3 850 2
1×50 26.3 1000 1
1×70 28.3 1220 2/0
1×95 30.3 1500 3/0
1×120 31.9 1900 4/0
1×150 33.3 2100 250 MCM
1×185 35.3 2500 350 MCM
1×240 38.3 3030 450 MCM
1×300 40.3 3800 550 MCM
1×400 43.3 4600 750 MCM
1×500 47.3 5700 900 MCM
1×630 52.3 7100 1150 MCM

Electrical Data

Nom. Cross- Section Area D C Resistance CU A C Resistance CU Short Circuit Rating of Conductor CU 1 sec Capaci- tance Charging Current Reactance Inductance Impedance
Trefoil Flat Spaced Trefoil Flat Spaced Trefoil Flat Spaced
CU CU
mm² µΩ/m µΩ/m kA pF/m mA/m µΩ/m nH/m µΩ/m µΩ/m
25 727 927 3.6 222 0.32 131 185 345 535 936 952
35 524 668 5.0 251 0.35 122 178 327 524 679 695
50 387 494 6.8 281 0.39 116 172 313 514 511 527
70 268 343 9.8 341 0.45 110 165 300 495 364 386
95 193 248 13.3 397 0.50 104 160 287 485 272 300
120 153 196 17.2 430 0.55 104 159 283 480 225 257
150 124 159 21.2 464 0.59 100 156 280 475 193 229
185 99 128 26.6 513 0.65 98 154 274 465 165 206
240 75 98 34.9 573 0.70 94 150 267 459 140 185
300 60 80 43.8 652 0.72 91 147 260 455 128 174
400 47 64 57.3 727 0.75 90 147 253 445 113 164
500 37 51 72.3 754 0.79 89 145 248 435 105 158
630 28 42 91.2 786 0.87 86 143 245 425 97 151

Single Core 12/20 V (Um=24KV)

Dimensional Data

Nom. Cross- Section Area Outer-∅ ca.mm Cable Weight Approx AWG
n×mm² ± 10% kg/km no.*)
1×35 27.3 960 2
1×50 28.5 1100 1
1×70 30.4 1350 2/0
1×95 32.4 1650 3/0
1×120 33.9 1950 4/0
1×150 35.2 2300 250 MCM
1×185 37 2600 350 MCM
1×240 39.5 3200 450 MCM
1×300 42 3900 550 MCM
1×400 45.3 4800 750 MCM
1×500 49 5900 900 MCM
1×630 53.7 7300 1150 MCM

Electrical Data

Nom. Cross- Section Area DC Resistance CU AC Resistance CU Short Circuit Rating of Conductor CU 1 sec Capaci- tance Charging Current Reactance Inductance Impedance
Trefoil Flat Spaced Trefoil Flat Spaced Trefoil Flat Spaced
CU CU
mm² µΩ/m µΩ/m kA pF/m mA/m µΩ/m nH/m µΩ/m µΩ/m
35 524 668 5.0 251 0.35 122 178 327 524 679 695
50 387 494 6.8 281 0.39 116 172 313 514 511 527
70 268 343 9.8 341 0.45 110 165 300 495 364 386
95 193 248 13.3 397 0.50 104 160 287 485 272 300
120 153 196 17.2 430 0.55 104 159 283 480 225 257
150 124 159 21.2 464 0.59 100 156 280 475 193 229
185 99 128 26.6 513 0.65 98 154 274 465 165 206
240 75 98 34.9 573 0.70 94 150 267 459 140 185
300 60 80 43.8 652 0.72 91 147 260 455 128 174
400 47 64 57.3 727 0.75 90 147 253 445 113 164
500 37 51 72.3 754 0.79 89 145 248 435 105 158
630 28 42 91.2 786 0.87 86 143 245 425 97 151

Single Core 18/30 V (Um=36KV)

Dimensional Data

Nom. Cross- Section Area Outer-∅ ca.mm Cable Weight Approx AWG
n×mm² ± 10% kg/km no.*)
1×50 35.9 1400 1
1×70 36.1 1700 2/0
1×95 37.8 1950 3/0
1×120 39.1 2230 4/0
1×150 40.7 2550 250 MCM
1×185 42.6 3000 350 MCM
1×240 45.3 3600 450 MCM
1×300 47.8 4300 550 MCM
1×400 51.2 5200 750 MCM
1×500 55 6300 900 MCM
1×630 61.9 7800 1150 MCM

Electrical Data

Nom. Cross- Section Area DC Resistance CU AC Resistance CU Short Circuit Rating of Conductor CU 1 sec Capaci- tance Charging Current Reactance Inductance Impedance
Trefoil Flat Spaced Trefoil Flat Spaced Trefoil Flat Spaced
CU CU
mm² µΩ/m µΩ/m kA pF/m mA/m µΩ/m nH/m µΩ/m µΩ/m
50 387 494 6.8 281 0.39 116 172 313 514 511 527
70 268 343 9.8 341 0.45 110 165 300 495 364 386
95 193 248 13.3 397 0.50 104 160 287 485 272 300
120 153 196 17.2 430 0.55 104 159 283 480 225 257
150 124 159 21.2 464 0.59 100 156 280 475 193 229
185 99 128 26.6 513 0.65 98 154 274 465 165 206
240 75 98 34.9 573 0.70 94 150 267 459 140 185
300 60 80 43.8 652 0.72 91 147 260 455 128 174
400 47 64 57.3 727 0.75 90 147 253 445 113 164
500 37 51 72.3 754 0.79 89 145 248 435 105 158
630 28 42 91.2 786 0.87 86 143 245 425 97 151

Current Rating Conditions

Ground Temperature : 20°C

Ambient Temperature (air) : 30°C

Depth of Soil : 0.8m

Thermal Resistance of Soil : 1.5K•m/W

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