When curreynt flow in a Cable there is a voltage Drop between the ends of the Cable which is the product of the current and impedance. The Cable impedance is effected by the length of the cables , different Conductor material Cu or AL and others factors .

LV Cable Systems should be designed so as not to exceed voltage Drop 3-5 % in normal operating condition.

This app give the tools to claculate the voltage dorp for the Low voltage cables which help to select the correct Wire size for your appliaction .It is consider all required the type of cables (Single & multi- core) and different Cable size units (mm2 & AWG) , different type of insulation ( PVC & XLPE) and different operation System condtitions (1-phase or 3-phase) and others factors .