Kabeltværsnit for 70 Ampere ved 20 Meter (400V)
Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 70 A over 20 m ved 400V.
Copper Cable (≤3% Drop)16 mm²Drop: 3.24V (0.81%)
Aluminum Cable (≤3% Drop)25 mm²Drop: 3.42V (0.86%)
Voltage at Load396.8 VLine Loss: 393.2 W
Max Power & Breaker48.5 kW70A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 70A at 20m
| 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 | 34.59 V (8.65%) | 365.4 V | 57.07 V (14.27%) | 4194.4 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 20.76 V (5.19%) | 379.2 V | 34.24 V (8.56%) | 2516.6 W | Drop High |
| 4 mm² | 32 A | 25 A | 12.97 V (3.24%) | 387.0 V | 21.4 V (5.35%) | 1572.9 W | Drop High |
| 6 mm² | 41 A | 32 A | 8.65 V (2.16%) | 391.4 V | 14.27 V (3.57%) | 1048.6 W | Drop High |
| 10 mm² | 57 A | 44 A | 5.19 V (1.3%) | 394.8 V | 8.56 V (2.14%) | 629.2 W | Drop High |
| 16 mm² | 76 A | 59 A | 3.24 V (0.81%) | 396.8 V | 5.35 V (1.34%) | 393.2 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 2.08 V (0.52%) | 397.9 V | 3.42 V (0.86%) | 251.7 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 1.48 V (0.37%) | 398.5 V | 2.45 V (0.61%) | 179.8 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.04 V (0.26%) | 399.0 V | 1.71 V (0.43%) | 125.8 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.74 V (0.19%) | 399.3 V | 1.22 V (0.31%) | 89.9 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.55 V (0.14%) | 399.5 V | 0.9 V (0.23%) | 66.2 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.43 V (0.11%) | 399.6 V | 0.71 V (0.18%) | 52.4 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.35 V (0.09%) | 399.7 V | 0.57 V (0.14%) | 41.9 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.28 V (0.07%) | 399.7 V | 0.46 V (0.12%) | 34.0 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.22 V (0.05%) | 399.8 V | 0.36 V (0.09%) | 26.2 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.17 V (0.04%) | 399.8 V | 0.29 V (0.07%) | 21.0 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.13 V (0.03%) | 399.9 V | 0.21 V (0.05%) | 15.7 W | ✓ OK (≤3%) |
FAQ — Kabeltværsnit for 70 Ampere ved 20 Meter (400V)
Hvilket kabeltværsnit kræves til 70A ved 20 meter (400V)?
Til 70 Ampere over 20 meter ved 400V anbefales 16 mm² kobberkabel (spændingsfald 3.24V / 0.81%).
Hvor mange kW svarer 70A ved 400V til?
Det svarer til 48.5 kW med en anbefalet sikring på 70A.
Related Lengths & Currents (400V)
70A · 5m (400V)70A · 10m (400V)70A · 15m (400V)70A · 25m (400V)70A · 30m (400V)70A · 35m (400V)70A · 40m (400V)70A · 45m (400V)70A · 50m (400V)70A · 60m (400V)70A · 70m (400V)10A · 20m (400V)16A · 20m (400V)20A · 20m (400V)25A · 20m (400V)32A · 20m (400V)40A · 20m (400V)50A · 20m (400V)63A · 20m (400V)80A · 20m (400V)100A · 20m (400V)125A · 20m (400V)160A · 20m (400V)200A · 20m (400V)