700 Amp Cable Size at 350 Meters (690V Three-Phase (Wind / Heavy Industrial))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 700 A over 350 m (1148.3 ft).
Copper Cable (≤3% Drop)2× 400 mm²Drop: 11.35V (1.65%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 37.45V (5.43%)
Voltage at Load678.6 VLine Loss: 13762.9 W
Max Power & Breaker836.58 kW700A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 700A at 350m
| Cross-Section (mm²) | Cu Ampacity | Al Ampacity | Cu Voltage Drop | Load Voltage | Al Voltage Drop | Power Loss | Status |
|---|---|---|---|---|---|---|---|
| 1.5 mm² | 16 A | 12 A | 6054.09 V (877.41%) | 0.0 V | 9986.43 V (1447.31%) | 7340200.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 3632.46 V (526.44%) | 0.0 V | 5991.86 V (868.39%) | 4404120.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 2270.29 V (329.03%) | 0.0 V | 3744.91 V (542.74%) | 2752575.0 W | Drop High |
| 6 mm² | 41 A | 32 A | 1513.52 V (219.35%) | 0.0 V | 2496.61 V (361.83%) | 1835050.0 W | Drop High |
| 10 mm² | 57 A | 44 A | 908.11 V (131.61%) | 0.0 V | 1497.96 V (217.1%) | 1101030.0 W | Drop High |
| 16 mm² | 76 A | 59 A | 567.57 V (82.26%) | 122.4 V | 936.23 V (135.69%) | 688143.7 W | Drop High |
| 25 mm² | 101 A | 78 A | 363.25 V (52.64%) | 326.8 V | 599.19 V (86.84%) | 440412.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 259.46 V (37.6%) | 430.5 V | 427.99 V (62.03%) | 314580.0 W | Drop High |
| 50 mm² | 151 A | 118 A | 181.62 V (26.32%) | 508.4 V | 299.59 V (43.42%) | 220206.0 W | Drop High |
| 70 mm² | 192 A | 150 A | 129.73 V (18.8%) | 560.3 V | 213.99 V (31.01%) | 157290.0 W | Drop High |
| 95 mm² | 232 A | 181 A | 95.59 V (13.85%) | 594.4 V | 157.68 V (22.85%) | 115897.9 W | Drop High |
| 120 mm² | 269 A | 210 A | 75.68 V (10.97%) | 614.3 V | 124.83 V (18.09%) | 91752.5 W | Drop High |
| 150 mm² | 309 A | 241 A | 60.54 V (8.77%) | 629.5 V | 99.86 V (14.47%) | 73402.0 W | Drop High |
| 185 mm² | 353 A | 275 A | 49.09 V (7.11%) | 640.9 V | 80.97 V (11.73%) | 59515.1 W | Drop High |
| 240 mm² | 415 A | 324 A | 37.84 V (5.48%) | 652.2 V | 62.42 V (9.05%) | 45876.2 W | Drop High |
| 300 mm² | 477 A | 372 A | 30.27 V (4.39%) | 659.7 V | 49.93 V (7.24%) | 36701.0 W | Drop High |
| 400 mm² | 570 A | 445 A | 22.7 V (3.29%) | 667.3 V | 37.45 V (5.43%) | 27525.7 W | Drop High |
FAQ — 700 Amp Cable Size at 350 Meters (690V Three-Phase (Wind / Heavy Industrial))
What mm² cable size is required for 700A at 350 meters (690V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 2× 400 mm² copper cable for 700A over 350m at 690V (voltage drop: 11.35V or 1.65%).
What is the power capacity of 700A at 690V?
At unity power factor, 700A at 690V supports 836.58 kW with a standard 700A circuit breaker.
Related Lengths & Currents (690V)
700A · 5m (690V)700A · 10m (690V)700A · 15m (690V)700A · 20m (690V)700A · 25m (690V)700A · 30m (690V)700A · 35m (690V)700A · 40m (690V)700A · 45m (690V)700A · 50m (690V)700A · 60m (690V)700A · 70m (690V)10A · 350m (690V)16A · 350m (690V)20A · 350m (690V)25A · 350m (690V)32A · 350m (690V)40A · 350m (690V)50A · 350m (690V)63A · 350m (690V)80A · 350m (690V)100A · 350m (690V)125A · 350m (690V)160A · 350m (690V)200A · 350m (690V)