Wiring and Protection
Insulation Leakage Current Calculator
Estimate leakage current with Insulation Leakage Current. The page keeps the formula, assumptions, and example values visible.
Enter values for leakage current
Use one consistent electrical operating case for all fields.
How Insulation Leakage Current works
The governing expression is I = V ÷ R. Insulation Leakage Current uses Test voltage, Insulation resistance to report Leakage current.
With the loaded values, leakage current evaluates to 25.00 µA. Vary one measured quantity so the source of the difference stays clear.
Inputs for Insulation Leakage Current
Test voltage and Insulation resistance belong to Insulation Leakage Current. Keep source units with test voltage.
Sample entries show the formula in use. They are not substitute ratings for selected equipment.
- Test voltage
- Example entry: 500 V.
- Insulation resistance
- Example entry: 20 MΩ.
Reading the Insulation Leakage Current result
This output represents Insulation Leakage Current.
Keep the calculated requirement separate from the rating ultimately selected.
Measurement and units
Treat these results as planning arithmetic; conductor and protective-device selection must follow the applicable electrical code and equipment instructions. Check prefixes on test voltage.
A fair comparison keeps units, measurement point, and operating condition consistent.
Limits of this calculation
Follow the equipment test-voltage limit.
The calculation focuses on the named relationship and its entered variables. Unentered effects remain outside Insulation Leakage Current.
Insulation Leakage Current record notes
Record source and operating details for test voltage. Use Grounding Voltage Rise Calculator as the follow-up for ground potential rise.
Retain raw leakage current beside its selected rating.
Questions about Insulation Leakage Current
What does Insulation Leakage Current calculate?
Insulation Leakage Current reports leakage current.
Can Test voltage be zero?
For Insulation Leakage Current, measure any zero test voltage directly.