Kabeltverrsnitt for 40 Ampere ved 70 Meter (230V — NEK 400)
Nøyaktig beregning av kabeltverrsnitt (mm²), spenningsfall og sikring etter norsk standard NEK 400 for 40 A over 70 m ved 230V.
Copper Cable (≤3% Drop)25 mm²Drop: 4.79V (2.08%)
Aluminum Cable (≤3% Drop)35 mm²Drop: 5.65V (2.46%)
Voltage at Load225.2 VLine Loss: 191.7 W
Max Power & Breaker9.2 kW40A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 40A 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 | 79.89 V (34.74%) | 150.1 V | 131.79 V (57.3%) | 3195.7 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 47.94 V (20.84%) | 182.1 V | 79.07 V (34.38%) | 1917.4 W | Drop High |
| 4 mm² | 32 A | 25 A | 29.96 V (13.03%) | 200.0 V | 49.42 V (21.49%) | 1198.4 W | Drop High |
| 6 mm² | 41 A | 32 A | 19.97 V (8.68%) | 210.0 V | 32.95 V (14.32%) | 798.9 W | Drop High |
| 10 mm² | 57 A | 44 A | 11.98 V (5.21%) | 218.0 V | 19.77 V (8.59%) | 479.4 W | Drop High |
| 16 mm² | 76 A | 59 A | 7.49 V (3.26%) | 222.5 V | 12.36 V (5.37%) | 299.6 W | ~ ≤5% |
| 25 mm² | 101 A | 78 A | 4.79 V (2.08%) | 225.2 V | 7.91 V (3.44%) | 191.7 W | ✓ OK (≤3%) |
| 35 mm² | 125 A | 97 A | 3.42 V (1.49%) | 226.6 V | 5.65 V (2.46%) | 137.0 W | ✓ OK (≤3%) |
| 50 mm² | 151 A | 118 A | 2.4 V (1.04%) | 227.6 V | 3.95 V (1.72%) | 95.9 W | ✓ OK (≤3%) |
| 70 mm² | 192 A | 150 A | 1.71 V (0.74%) | 228.3 V | 2.82 V (1.23%) | 68.5 W | ✓ OK (≤3%) |
| 95 mm² | 232 A | 181 A | 1.26 V (0.55%) | 228.7 V | 2.08 V (0.9%) | 50.5 W | ✓ OK (≤3%) |
| 120 mm² | 269 A | 210 A | 1.0 V (0.43%) | 229.0 V | 1.65 V (0.72%) | 39.9 W | ✓ OK (≤3%) |
| 150 mm² | 309 A | 241 A | 0.8 V (0.35%) | 229.2 V | 1.32 V (0.57%) | 32.0 W | ✓ OK (≤3%) |
| 185 mm² | 353 A | 275 A | 0.65 V (0.28%) | 229.4 V | 1.07 V (0.46%) | 25.9 W | ✓ OK (≤3%) |
| 240 mm² | 415 A | 324 A | 0.5 V (0.22%) | 229.5 V | 0.82 V (0.36%) | 20.0 W | ✓ OK (≤3%) |
| 300 mm² | 477 A | 372 A | 0.4 V (0.17%) | 229.6 V | 0.66 V (0.29%) | 16.0 W | ✓ OK (≤3%) |
| 400 mm² | 570 A | 445 A | 0.3 V (0.13%) | 229.7 V | 0.49 V (0.21%) | 12.0 W | ✓ OK (≤3%) |
FAQ — Kabeltverrsnitt for 40 Ampere ved 70 Meter (230V — NEK 400)
Hvilket kabeltverrsnitt må jeg bruke for 40A over 70 meter (230V)?
Etter NEK 400 anbefales 25 mm² kobberkabel for 40A ved 70 meter (230V), som gir et spenningsfall på 4.79V (2.08%).
Hvor mange kW tåler 40A ved 230V?
Kursen leverer opptil 9.2 kW med 40A vern.
Related Lengths & Currents (230V)
40A · 5m (230V)40A · 10m (230V)40A · 15m (230V)40A · 20m (230V)40A · 25m (230V)40A · 30m (230V)40A · 35m (230V)40A · 40m (230V)40A · 45m (230V)40A · 50m (230V)40A · 60m (230V)10A · 70m (230V)16A · 70m (230V)20A · 70m (230V)25A · 70m (230V)32A · 70m (230V)50A · 70m (230V)63A · 70m (230V)80A · 70m (230V)100A · 70m (230V)125A · 70m (230V)160A · 70m (230V)200A · 70m (230V)