So berechnen Sie Cable Voltage Drop2
learn.whatIsHeading
Calculates voltage loss in electrical cables due to resistance. High losses reduce efficiency and can prevent motor starting.
Formel
Formula: voltage drop = (2 × length × current × resistance) ÷ 1000
Schritt-für-Schritt-Anleitung
- 1Current in amperes and cable length
- 2Wire gauge (affects resistance)
- 3Formula: voltage drop = (2 × length × current × resistance) ÷ 1000
- 4Typical target <3% for power, <5% for control
- 5Higher gauge wire reduces drop exponentially
Gelöste Beispiele
Eingabe
100A, 50ft, 10 AWG
Ergebnis
3.2V drop
Häufige Fehler vermeiden
- ✕Using undersized wire to save cost
- ✕Not accounting for temperature derating
Häufig gestellte Fragen
Why does voltage drop matter?
Reduces equipment voltage, increases losses, causes motors to start slowly, reduces efficiency.
How much does proper wire size cost vs. undersized?
Proper size costs 10-20% more initially but saves 5-10% energy costs over life.
Bereit zur Berechnung? Probieren Sie den kostenlosen Cable Voltage Drop2-Rechner aus
Probieren Sie es selbst aus →