Post on 18-Dec-2015
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ISO9001 : 2000Reg. No. : AR1757
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Nom. Cross Sectional Area
for Cu.
Cu. Conductor
Current Rating
Voltage Drop Cu. Conductor
Voltage Drop Al. Conductor
Equivalent Current Rating
of Al. Conductor
Nom. Cross Sectional
Area for Al.
mm2 (A) mV/A/m mV/A/m (A) mm2
1.5 18 25 11.82 28 62.5 25 15 11.82 28 64 33 9.5 7.91 39 106 43 6.4 4.2 57 16
10 59 3.8 4.2 57 1616 79 2.4 2.7 79 2525 104 1.5 1.35 123 3535 129 1.1 1.35 123 5050 167 0.84 0.94 159 7070 214 0.6 0.58 226 12095 261 0.47 0.48 261 150
120 303 0.4 0.41 299 185150 349 0.34 0.35 354 240185 400 0.31 0.31 410 300240 472 0.27 0.28 472 400300 545 0.25 0.26 546 500400 634 0.24 0.24 626 630500 723 0.23 0.23 709 800630 826 0.22 0.22 823 1000
The continuos current carrying capacities are based on the following condition :
a) Ambient temperature 30oC
b) Maximum continuos loading temperature of conductor 70oC
c) Clipped direct 3 or 4 cable, 3 phase a.c
Cu and Al Equivalent Size Comparison
Nom. Cross Sectional Area
for Cu.
Cu. Conductor Current Rating
Voltage Drop Cu. Conductor
Voltage Drop Al. Conductor
Equivalent Current Rating
of Al. Conductor
Nom. Cross Sectional
Area for Al.
mm2 (A) mV/A/m mV/A/m (A) mm2
10 73 4 4.2 76 16
16 94 2.5 2.7 90 25
25 124 1.65 1.45 136 50
35 154 1.15 0.97 174 70
50 187 0.87 0.72 211 95
70 238 0.6 0.58 245 120
95 289 0.45 0.47 283 150
120 335 0.37 0.39 323 185
150 386 0.3 0.31 382 240
185 441 0.26 0.26 440 300
240 520 0.21 0.22 517 400
300 599 0.185 0.19 605 500
400 673 0.165 0.175 691 630
Cu and Al Equivalent Size Comparison CU/XLPE/SWA/PVC/AL/XLPE/SCT/PE
The continuos current carrying capacities are based on the following condition :
a) Ambient temperature 30oC
b) Maximum continuos loading temperature of conductor 70oC
c) Clipped direct 3 or 4 cable, 3 phase a.c
Cu and Al Equivalent Size Comparison XLPE/PVC
The continuos current carrying capacities are based on the following condition :
a) Ambient temperature 30 deg.C
b) Maximum continuos loading temperature of conductor 90 deg.C
c) Clipped direct 3 or 4 cable, 3 phase a.c
Nom. Cross Sectional Area
for Cu.
Cu. Conductor Current Rating
Voltage Drop Cu. Conductor
Voltage Drop Al. Conductor
Equivalent Current Rating
of Al. Conductor
Nom. Cross Sectional
Area for Al.
mm2 (A) mV/A/m mV/A/m (A) mm2
10 74 4 4.2 80 1616 99 2.5 2.7 97 2525 130 1.6 1.45 149 5035 161 1.15 0.98 189 7050 209 0.87 0.73 234 9570 268 0.61 0.59 273 12095 326 0.45 0.47 314 150
120 379 0.37 0.39 366 185150 436 0.31 0.32 438 240185 500 0.26 0.27 507 300240 590 0.22 0.23 594 400300 681 0.195 0.2 692 500400 793 0.175 0.185 791 630500 904 0.16 0.17 911 800630 1033 0.15 0.16 1072 1000800 1179 0.145 0.15 1217 1200
Allowable Short Circuit Current for PVC Insulated Copper Cables
Short Circuit Current Rating for XLPE Insulated Copper Cables
Short Circuit Current Rating for XLPE Insulated Aluminum Cables
DC RESISTANCE
AC RESISTANCE
INDUCTANCE
CAPACITANCE
REACTANCE
IMPEDANCE
SHORT-CIRCUIT CURRENT
ELECTRICAL FIELD STRENGTH
CHARGING CURRENT
DIELECTRIC LOSS
SHEATH LOSS
INSULATION RESISTANCE
MAXIMUM PULLING TENSION
CABLE LENGTH IN DRUM