Kabeltværsnit for 20 Ampere ved 70 Meter (400V)
Beregning af kabeltværsnit (mm²), spændingsfald og sikringsstørrelse efter dansk standard DS/HD 60364 for 20 A over 70 m ved 400V.
Copper Cable (≤3% Drop)6 mm²Drop: 8.65V (2.16%)
Aluminum Cable (≤3% Drop)10 mm²Drop: 8.56V (2.14%)
Voltage at Load391.4 VLine Loss: 299.6 W
Max Power & Breaker13.86 kW20A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 20A at 70m
| 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%) | 1198.4 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 20.76 V (5.19%) | 379.2 V | 34.24 V (8.56%) | 719.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 12.97 V (3.24%) | 387.0 V | 21.4 V (5.35%) | 449.4 W | ~ ≤5% |
| 6 mm² | 41 A | 32 A | 8.65 V (2.16%) | 391.4 V | 14.27 V (3.57%) | 299.6 W | ✓ OK (≤3%) |
| 10 mm² | 57 A | 44 A | 5.19 V (1.3%) | 394.8 V | 8.56 V (2.14%) | 179.8 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 3.24 V (0.81%) | 396.8 V | 5.35 V (1.34%) | 112.3 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 2.08 V (0.52%) | 397.9 V | 3.42 V (0.86%) | 71.9 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 1.48 V (0.37%) | 398.5 V | 2.45 V (0.61%) | 51.4 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.04 V (0.26%) | 399.0 V | 1.71 V (0.43%) | 36.0 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.74 V (0.19%) | 399.3 V | 1.22 V (0.31%) | 25.7 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.55 V (0.14%) | 399.5 V | 0.9 V (0.23%) | 18.9 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.43 V (0.11%) | 399.6 V | 0.71 V (0.18%) | 15.0 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.35 V (0.09%) | 399.7 V | 0.57 V (0.14%) | 12.0 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.28 V (0.07%) | 399.7 V | 0.46 V (0.12%) | 9.7 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.22 V (0.05%) | 399.8 V | 0.36 V (0.09%) | 7.5 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.17 V (0.04%) | 399.8 V | 0.29 V (0.07%) | 6.0 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.13 V (0.03%) | 399.9 V | 0.21 V (0.05%) | 4.5 W | ✓ OK (≤3%) |
FAQ — Kabeltværsnit for 20 Ampere ved 70 Meter (400V)
Hvilket kabeltværsnit kræves til 20A ved 70 meter (400V)?
Til 20 Ampere over 70 meter ved 400V anbefales 6 mm² kobberkabel (spændingsfald 8.65V / 2.16%).
Hvor mange kW svarer 20A ved 400V til?
Det svarer til 13.86 kW med en anbefalet sikring på 20A.
Related Lengths & Currents (400V)
20A · 5m (400V)20A · 10m (400V)20A · 15m (400V)20A · 20m (400V)20A · 25m (400V)20A · 30m (400V)20A · 35m (400V)20A · 40m (400V)20A · 45m (400V)20A · 50m (400V)20A · 60m (400V)10A · 70m (400V)16A · 70m (400V)25A · 70m (400V)32A · 70m (400V)40A · 70m (400V)50A · 70m (400V)63A · 70m (400V)80A · 70m (400V)100A · 70m (400V)125A · 70m (400V)160A · 70m (400V)200A · 70m (400V)