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VOLTGAE DROP CALCULATIONS FOR XLPE CABLES AS PER BS-5467, BS6724 Installed in GROUNDVoltage 415 volts Allowed VD = 2.5% Ambient temparature = 30'C Conductor temparature = 90'C

Temparature Derating Factor = 0.89Cable Nominal Cable 20 30 40 50 60 70 80 90 100 110 120 130

size capacity Impedance Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps

per cable per cable

sqmm amps m-ohms/m

4c 4 39.16 10.000 51.875 34.583

4c 6 49.84 6.800 76.287 50.858 38.143

4c 10 69.42 4.000 129.688 86.458 64.844 51.875 43.229

4c 16 88.11 2.500 207.500 138.333 103.750 83.000 69.167 59.286 51.875

4c 25 116.59 1.606 322.985 215.323 161.492 129.194 107.662 92.281 80.746 71.774 64.597 58.724

4c 35 144.18 1.158 448.011 298.674 224.005 179.204 149.337 128.003 112.003 99.558 89.602 81.456 74.668 68.925

3.5 c 50 175.33 0.871 595.900 397.267 297.950 238.360 198.633 170.257 148.975 132.422 119.180 108.346 99.317 91.677

3.5 c 70 223.39 0.604 343.456 286.214 245.326 214.660 190.809 171.728 156.117 143.107 132.09

3.5 c 95 270.56 0.449 461.910 384.925 329.936 288.694 256.617 230.955 209.959 192.463 177.65

3.5 c 120 314.17 0.364 570.046 475.039 407.176 356.279 316.692 285.023 259.112 237.519 219.24

3.5 c 150 361.34 0.307 676.700 563.917 483.357 422.938 375.945 338.350 307.591 281.958 260.26

200 210 220 230 240 250 260 270 280 290 300 320

Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps

3.5 c 70 223.39 0.604 85.864 81.775

3.5 c 95 270.56 0.449 115.478 109.979 104.980 100.415 96.231 92.382 88.829

3.5 c 120 314.17 0.364 142.512 135.725 129.556 123.923 118.760 114.009 109.624 105.564 101.794 98.284 95.008

3.5 c 150 361.34 0.307 169.175 161.119 153.796 147.109 140.979 135.340 130.135 125.315 120.839 116.672 112.783 105.73

3.5 c 185 412.07 0.253 205.014 195.251 186.376 178.273 170.845 164.011 157.703 151.862 146.439 141.389 136.676 128.13

3.5 c 240 485.94 0.215 241.214 229.727 219.285 209.751 201.012 192.971 185.549 178.677 172.296 166.354 160.809 150.75

MAXIMUM L E N G T H OF CABLE IN METERS FOR 2.5% VD (10.375V

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VOLTGAE DROP CALCULATIONS FOR XLPE CABLES AS PER BS-5467, BS6724 Installed in airVoltage 415 volts Allowed VD = 2.5% Ambient temparature = 45'C Conductor temparature = 90'C

Temparature Derating Factor = 0.87

Cable Nominal Cable 20 30 40 50 60 70 80 90 100 110 120 130size capacity Impedance Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps

per cable per cable

sqmm amps m-ohms/m

4c 4 38.28 10.000 51.875 34.583

4c 6 48.72 6.800 76.287 50.858 38.143

4c 10 67.86 4.000 129.688 86.458 64.844 51.875 43.229

4c 16 86.13 2.500 207.500 138.333 103.750 83.000 69.167 59.286 51.875

4c 25 113.97 1.606 322.985 215.323 161.492 129.194 107.662 92.281 80.746 71.774 64.597 58.724

4c 35 140.94 1.158 448.011 298.674 224.005 179.204 149.337 128.003 112.003 99.558 89.602 81.456 74.668 68.92

3.5 c 50 171.39 0.871 595.900 397.267 297.950 238.360 198.633 170.257 148.975 132.422 119.180 108.346 99.317 91.67

3.5 c 70 218.37 0.604 343.456 286.214 245.326 214.660 190.809 171.728 156.117 143.107 132.09

3.5 c 95 264.48 0.449 461.910 384.925 329.936 288.694 256.617 230.955 209.959 192.463 177.65

3.5 c 120 307.11 0.364 570.046 475.039 407.176 356.279 316.692 285.023 259.112 237.519 219.24

3.5 c 150 353.22 0.307 676.700 563.917 483.357 422.938 375.945 338.350 307.591 281.958 260.26

200 210 220 230 240 250 260 270 280 290 300 320

Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps

3.5 c 70 218.37 0.604 85.864 81.775

3.5 c 95264.48 0.449 115.478 109.979 104.980 100.415 96.231 92.382 88.829

3.5 c 120 307.11 0.364 142.512 135.725 129.556 123.923 118.760 114.009 109.624 105.564 101.794 98.284 95.008

3.5 c 150 353.22 0.307 169.175 161.119 153.796 147.109 140.979 135.340 130.135 125.315 120.839 116.672 112.783 105.73

3.5 c 185 402.81 0.253 205.014 195.251 186.376 178.273 170.845 164.011 157.703 151.862 146.439 141.389 136.676 128.13

3.5 c 240 475.02 0.215 241.214 229.727 219.285 209.751 201.012 192.971 185.549 178.677 172.296 166.354 160.809 150.75

3.5 c 300 546.36 0.184 281.332 267.935 255.756 244.636 234.443 225.065 216.409 208.394 200.951 194.022 187.554 175.83

MAXIMUM L E N G T H OF CABLE IN METERS FOR 2.5% VD (10.375V

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VOLTGAE DROP CALCULATIONS FOR XLPE CABLES AS PER BS-5467, BS6724 Installed in airVoltage 415 volts Allowed VD = 2.5% Ambient temparature = 30'C Conductor temparature = 90'CTemparature Derating Factor = 1

Cable Nominal Cable 20 30 40 50 60 70 80 90 100 110 120 13

size capacity Impedance Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amp

per cable per cable

sqmm amps m-ohms/m

4c 4 44 10.000 51.875 34.583 25.938

4c 6 56 6.800 76.287 50.858 38.143 30.515

4c 10 78 4.000 129.688 86.458 64.844 51.875 43.229 37.054

4c 16 99 2.500 207.500 138.333 103.750 83.000 69.167 59.286 51.875 46.111

4c 25 131 1.606 322.985 215.323 161.492 129.194 107.662 92.281 80.746 71.774 64.597 58.724 53.831 49.6

4c 35 162 1.158 448.011 298.674 224.005 179.204 149.337 128.003 112.003 99.558 89.602 81.456 74.668 68.9

3.5 c 50 197 0.871 595.900 397.267 297.950 238.360 198.633 170.257 148.975 132.422 119.180 108.346 99.317 91.6

3.5 c 70 251 0.604 171.728 156.117 143.107 132.0

3.5 c 95 304 0.449 230.955 209.959 192.463 177.6

3.5 c 120 353 0.364 285.023 259.112 237.519 219.2

3.5 c 150 406 0.307 338.350 307.591 281.958 260.2

200 210 220 230 240 250 260 270 280 290 300 32

Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amp

3.5 c 70 251 0.604 85.864 81.775 78.058 74.664 71.553 68.691

3.5 c 95 304 0.449 115.478 109.979 104.980 100.415 96.231 92.382 88.829 85.539 82.484 79.640 76.985

3.5 c 120 353 0.364 142.512 135.725 129.556 123.923 118.760 114.009 109.624 105.564 101.794 98.284 95.008 89.0

3.5 c 150 406 0.307 169.175 161.119 153.796 147.109 140.979 135.340 130.135 125.315 120.839 116.672 112.783 105.7

3.5 c 185 463 0.253 205.014 195.251 186.376 178.273 170.845 164.011 157.703 151.862 146.439 141.389 136.676 128.1

3.5 c 240 546 0.215 241.214 229.727 219.285 209.751 201.012 192.971 185.549 178.677 172.296 166.354 160.809 150.7

MAXIMUM L E N G T H OF CABLE IN METERS FOR 2.5% VD (10.37

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VOLTGAE DROP CALCULATIONS FOR XLPE CABLES AS PER BS-5467, BS6724 Installed in airVoltage 415 volts Allowed VD = 2.5% Ambient temparature = 40'C Conductor temparature = 90'C

Temparature Derating Factor = 0.91

Cable Nominal Cable 20 30 40 50 60 70 80 90 100 110 120 130

size capacity Impedance Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps

per cable per cable

sqmm amps m-ohms/m

4c 4 40.04 10.000 51.875 34.583 25.938

4c 6 50.96 6.800 76.287 50.858 38.143 30.515

4c 10 70.98 4.000 129.688 86.458 64.844 51.875 43.229 37.054

4c 16 90.09 2.500 207.500 138.333 103.750 83.000 69.167 59.286 51.875 46.111

4c 25 119.21 1.606 322.985 215.323 161.492 129.194 107.662 92.281 80.746 71.774 64.597 58.724

4c 35 147.42 1.158 448.011 298.674 224.005 179.204 149.337 128.003 112.003 99.558 89.602 81.456 74.668 68.925

3.5 c 50 179.27 0.871 595.900 397.267 297.950 238.360 198.633 170.257 148.975 132.422 119.180 108.346 99.317 91.677

3.5 c 70 228.41 0.604 171.728 156.117 143.107 132.09

3.5 c 95 276.64 0.449 230.955 209.959 192.463 177.65

3.5 c 120 321.23 0.364 285.023 259.112 237.519 219.24

3.5 c 150 369.46 0.307 338.350 307.591 281.958 260.26

200 210 220 230 240 250 260 270 280 290 300 320

Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps Amps

3.5 c 70 228.41 0.604 85.864 81.775 78.058

3.5 c 95 276.64 0.449 115.478 109.979 104.980 100.415 96.231 92.382 88.829 85.539

3.5 c 120 321.23 0.364 142.512 135.725 129.556 123.923 118.760 114.009 109.624 105.564 101.794 98.284 95.008 89.070

3.5 c 150 369.46 0.307 169.175 161.119 153.796 147.109 140.979 135.340 130.135 125.315 120.839 116.672 112.783 105.73

3.5 c 185 421.33 0.253 205.014 195.251 186.376 178.273 170.845 164.011 157.703 151.862 146.439 141.389 136.676 128.13

3.5 c 240 496.86 0.215 241.214 229.727 219.285 209.751 201.012 192.971 185.549 178.677 172.296 166.354 160.809 150.75

MAXIMUM L E N G T H OF CABLE IN METERS FOR 2.5% VD (10.375V

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Reference Table 4E4A & 4E4B of IEE Regulations - 16th Edition

Cables as per BS 5467, BS 6724 Date : 23-12-2009Ambient temparature = 30"C Ground Temparature = 15' C

Conductor operating temparature = 90"C

MULTICORE ARMOURED CABLES with THERMOSETTING INSULATIONProject :

Cable From: Cable To: Installation : Air & Gound

INPUT : Power Factor 0.8 160.000

92.00 1

1 2.50% 10.375

415 74 volts

0.87 45 deg C

Cable Nominal Derated Cable Cable Cable Cable Voltage Voltage

size capacity capacity resistance Reactance Impedance impedance drop drop

in air of cables per cable per cable per cable for number

per cable of Cables

sqmm amps amps m-ohms/m m-ohms/m m-ohms/m m-ohms/m Volts %

4c 4 44 38.280 10.000 0.000 10.000 10.000

4c 6 56 48.720 6.800 0.000 6.800 6.800

4c 10 78 1.950 4.000 0.000 4.000 4.000

4c 16 99 86.130 2.500 0.000 2.500 2.500

4c 25 131 113.970 1.600 0.140 1.606 1.606

4c 35 162 140.940 1.150 0.135 1.158 1.158

3.5 c 50 197 171.390 0.860 0.135 0.871 0.871 10.307 2.48%

3.5 c 70 251 218.370 0.590 0.130 0.604 0.604 7.153 1.72%

3.5 c 95 304 264.480 0.430 0.130 0.449 0.449 5.319 1.28%

3.5 c 120 353 307.110 0.340 0.130 0.364 0.364 4.310 1.04%

3.5 c 150 406 353.220 0.280 0.125 0.307 0.307 3.631 0.87%

3.5 c 185 463 402.810 0.220 0.125 0.253 0.253 2.996 0.72%

3.5 c 240 546 475.020 0.175 0.125 0.215 0.215 2.546 0.61%

3.5 c 300 628 546.360 0.140 0.120 0.184 0.184 2.183 0.53%3.5 c 400 728 633.360 0.115 0.120 0.166 0.166 1.968 0.47%

-Yellow cells are the inputs -See below for the table of factors

No of cables in parallel = max allowed VD % =

Operating Voltage 3-phase = Cable length (Route length)=

Derating factor for temp = Ambient Temparature =

Amwaj gateway @ Amwaj Island

East Tower S/S Town Houses

Current =

Connected Load KW = Derating factor for grouping =

XLPE-Current

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Reference Table 4E4A & 4E4B of IEE Regulations - 16th Edition

Cables as per BS 5467, BS 6724 Date : 23-12-2009Ambient temparature = 30"C Ground Temparature = 15' C

Conductor operating temparature = 90"C

MULTICORE ARMOURED CABLES with THERMOSETTING INSULATIONProject :

Cable From: Cable To: Installation : Air & Gound

INPUT : Power Factor 0.8 159.993

92 1

1 2.50% 10.375

415 74 volts

0.87 45 deg C

Cable Nominal Derated Cable Cable Cable Cable Voltage Voltage

size capacity capacity resistance Reactance Impedance impedance drop drop

in air of cables per cable per cable per cable for number

per cable of Cables

sqmm amps amps m-ohms/m m-ohms/m m-ohms/m m-ohms/m Volts %

4c 4 44 38.280 10.000 0.000 10.000 10.000

4c 6 56 48.720 6.800 0.000 6.800 6.800

4c 10 78 1.950 4.000 0.000 4.000 4.000

4c 16 99 86.130 2.500 0.000 2.500 2.500

4c 25 131 113.970 1.600 0.140 1.606 1.606

4c 35 162 140.940 1.150 0.135 1.158 1.158

3.5 c 50 197 171.390 0.860 0.135 0.871 0.871 10.307 2.48%

3.5 c 70 251 218.370 0.590 0.130 0.604 0.604 7.153 1.72%

3.5 c 95 304 264.480 0.430 0.130 0.449 0.449 5.319 1.28%

3.5 c 120 353 307.110 0.340 0.130 0.364 0.364 4.310 1.04%

3.5 c 150 406 353.220 0.280 0.125 0.307 0.307 3.630 0.87%

3.5 c 185 463 402.810 0.220 0.125 0.253 0.253 2.996 0.72%

3.5 c 240 546 475.020 0.175 0.125 0.215 0.215 2.546 0.61%

3.5 c 300 628 546.360 0.140 0.120 0.184 0.184 2.183 0.53%3.5 c 400 728 633.360 0.115 0.120 0.166 0.166 1.968 0.47%

-Yellow cells are the inputs -See below for the table of factors

max allowed VD % =

Cable length (Route length)=

Current =

Amwaj gateway @ Amwaj Island

East Tower S/S Town Houses

Ambient Temparature =

Connected Load KW =

No of cables in parallel =

Operating Voltage 3-phase =

Derating factor for temp =

Derating factor for grouping =

XLPE-KW