Conduit Fill Calculator
Enter the number of unique cables and a calculator for the cables is custom built in the lower frame. Then enter the diameter for each cable, select number of cables, type of raceway, fill type either 25%, 60% or auto. This program finds the correct raceway size.
Voltage Drop Calculator
Select the material either copper or aluminum, the size of the conductor, the voltage and phase from a list of common voltages, then enter the one way circuit length in feet, and load in amperes. This program finds voltage drop, percent voltage drop, and volts at end of circuit.
For more information visit the premiere site for online electrical calculators from the National Electrical Resource Center at http://www.electrician2.com/calculators/elcal.html