Kabeltverrsnitt for 20 Ampere ved 70 Meter (230V — NEK 400)
Nøyaktig beregning av kabeltverrsnitt (mm²), spenningsfall og sikring etter norsk standard NEK 400 for 20 A over 70 m ved 230V.
Copper Cable (≤3% Drop)10 mm²Drop: 5.99V (2.61%)
Aluminum Cable (≤3% Drop)16 mm²Drop: 6.18V (2.69%)
Voltage at Load224.0 VLine Loss: 119.8 W
Max Power & Breaker4.6 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 | 39.95 V (17.37%) | 190.1 V | 65.89 V (28.65%) | 798.9 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 23.97 V (10.42%) | 206.0 V | 39.54 V (17.19%) | 479.4 W | Drop High |
| 4 mm² | 32 A | 25 A | 14.98 V (6.51%) | 215.0 V | 24.71 V (10.74%) | 299.6 W | Drop High |
| 6 mm² | 41 A | 32 A | 9.99 V (4.34%) | 220.0 V | 16.47 V (7.16%) | 199.7 W | ~ ≤5% |
| 10 mm² | 57 A | 44 A | 5.99 V (2.61%) | 224.0 V | 9.88 V (4.3%) | 119.8 W | ✓ OK (≤3%) |
| 16 mm² | 76 A | 59 A | 3.75 V (1.63%) | 226.3 V | 6.18 V (2.69%) | 74.9 W | ✓ OK (≤3%) |
| 25 mm² | 101 A | 78 A | 2.4 V (1.04%) | 227.6 V | 3.95 V (1.72%) | 47.9 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 1.71 V (0.74%) | 228.3 V | 2.82 V (1.23%) | 34.2 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 1.2 V (0.52%) | 228.8 V | 1.98 V (0.86%) | 24.0 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 0.86 V (0.37%) | 229.1 V | 1.41 V (0.61%) | 17.1 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 0.63 V (0.27%) | 229.4 V | 1.04 V (0.45%) | 12.6 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 0.5 V (0.22%) | 229.5 V | 0.82 V (0.36%) | 10.0 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.4 V (0.17%) | 229.6 V | 0.66 V (0.29%) | 8.0 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.32 V (0.14%) | 229.7 V | 0.53 V (0.23%) | 6.5 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.25 V (0.11%) | 229.8 V | 0.41 V (0.18%) | 5.0 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.2 V (0.09%) | 229.8 V | 0.33 V (0.14%) | 4.0 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.15 V (0.07%) | 229.9 V | 0.25 V (0.11%) | 3.0 W | ✓ OK (≤3%) |
FAQ — Kabeltverrsnitt for 20 Ampere ved 70 Meter (230V — NEK 400)
Hvilket kabeltverrsnitt må jeg bruke for 20A over 70 meter (230V)?
Etter NEK 400 anbefales 10 mm² kobberkabel for 20A ved 70 meter (230V), som gir et spenningsfall på 5.99V (2.61%).
Hvor mange kW tåler 20A ved 230V?
Kursen leverer opptil 4.6 kW med 20A vern.
Related Lengths & Currents (230V)
20A · 5m (230V)20A · 10m (230V)20A · 15m (230V)20A · 20m (230V)20A · 25m (230V)20A · 30m (230V)20A · 35m (230V)20A · 40m (230V)20A · 45m (230V)20A · 50m (230V)20A · 60m (230V)10A · 70m (230V)16A · 70m (230V)25A · 70m (230V)32A · 70m (230V)40A · 70m (230V)50A · 70m (230V)63A · 70m (230V)80A · 70m (230V)100A · 70m (230V)125A · 70m (230V)160A · 70m (230V)200A · 70m (230V)