DC Cable Sizing Calculator
A PV DC cable screen using design current, cable length, conductor material, temperature, correction factors and maximum voltage drop. For final PV selection, verify the cable's continuous current rating, ambient correction, grouping, conduit/tray method, insulation temperature rating, connector compatibility and the applicable PV/electrical standard.
Enter values and calculate.
PV DC design checklist
- Use the actual string/combiner current basis required by the project design.
- Check maximum DC voltage at the minimum design temperature.
- Check current at the maximum relevant operating condition.
- Apply installation, ambient and grouping corrections from the governing standard/manufacturer data.
- Check voltage drop and connector/termination compatibility.
- Verify cable type, insulation, UV resistance and routing for the actual environment.