How It Works
Drop=k×length×current×resistivity/area, k=2 for a loop or √3 for balanced three-phase. Default resistivity approximates annealed copper at 20°C. Enter operating-temperature resistivity.
Scope and Limitations
- Ignores reactance, starting currents, power factor, terminal losses and ampacity. This is not an electrical design or code-compliance check.
Reference Sources
FAQs
How does this calculator work?
Drop=k×length×current×resistivity/area, k=2 for a loop or √3 for balanced three-phase. Default resistivity approximates annealed copper at 20°C. Enter operating-temperature resistivity.
What assumptions should I check?
Ignores reactance, starting currents, power factor, terminal losses and ampacity. This is not an electrical design or code-compliance check.