This application calculates the section of low voltage cables through thermal and voltage drop criteria pursuant to Regulation for Low Voltage Spanish and international IEC 60364-5-523 standard.

It is based on the exact method that takes into account the actual temperature of the driver: After finding the minimum valid commercial section for maximum allowable temperature insulation, recalculates the conductivity of the material for the actual conductor temperature in that section, proving again if with this new conductivity supports a lower section.

The process allows iterate many times as necessary until you find the final section ensuring no oversized section.

Shows the most important calculation results and other data extending therefrom.