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    Calculation of Cable Cross-Section by Power and Current

    With this calculator, you can calculate the required wire or cable cross-section based on current or specified power.
    Calculation of cable cross-section by power load or consumed current is based on PUE for wires and cables with rubber and polyvinyl chloride insulation, most commonly used in electrical installation works up to 1 kV, when operating in open air, in pipes, and boxes.

    The calculation is made both for permissible voltage losses and for permissible continuous current. As a result, the maximum obtained cross-sectional value from the standard range up to 120 mm is displayed².
    For direct current cosφ=1; 1 phase.



    Line length (m) / Cable material:

    Load power (W) or current (A):

    Network voltage (V):

    Power

    1 phase
    Power factor (cosφ):

    Current

    3 phases
    Allowable voltage losses (%):

    		 
    Cable temperature (°C):

    		 
    Cable laying method:

    Cable cross-section not less than (mm²)

    		 
    Current density (A/mm²)  
    Wire resistance (ohm)

    		 
    Voltage on the load (V)  
    Voltage losses (In / %)