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Cable Size Calculations
Cable Size Calculations

Calculations //

Based On Motor Horse Power HP and Specified Current

Input data: Motor voltage (V L-L), Motor horsepower, Cable Temperature Rating (°C), Ambient Temperature (°C), Cable Length (ft) and Acceptable Voltage Drop (%).

Calculated Values: Operating Current (A), 125% Current per NEC (A), “Zero Length” Cable Size, Acceptable Voltage Drop (V), Actual Voltage Drop (V) and Actual Voltage Drop (%).

Note//

Conductor ampacities are based on NEC 2008, Table 310.16 (Not more than 3 current carrying conductors in racewary).

Software:Cable Size Calculations – Based On Motor Horse Power HP and Specified Current
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Cable Size Calculations

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41 Comments


  1. fassil
    Aug 08, 2022

    to study electrical engineering


  2. Rhon jeffrey ronquillo
    Feb 23, 2021

    How can i calculate the size of wire for 40kva 3phase load?220vac

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