Voltage drop
It’s 20 m to get there — how much do I lose on the way?
Advanced conditions and parameters · Copper · Single-phase (230 V)
Result
Voltage drop1.08%
Voltage drop in volts2.5V
Limit applied5%
✓Compliant — Voltage drop 1.08 % · Limit applied 5 %
Art. 5.2.5.1 I7-2011
Calculation assumptions
The result holds under the conditions below. If your situation differs, change the values in the advanced section.
- 230 V single-phase / 400 V between lines on three-phase
- a single circuit run — the route of the whole installation is not added up
- copper conductor
The results are indicative and do not replace a design checked by a registered electrician. Every tool states its assumptions.