Voltage Drop Calculator by I Square Electricals
Voltage Drop Calculator
Electrical Cable Voltage Loss Calculation
Voltage Drop = Current × Cable Resistance
Current is automatically calculated from W, kW or HP.
Current is automatically calculated from W, kW or HP.
Cable Information
Selected Resistance:
–
Ω/km
Load Information
Note:
Resistance values are approximate DC conductor
resistance values at 20°C. Actual resistance can vary
with cable construction, conductor class and operating
temperature.
For W and kW calculations, Power Factor is used. For HP calculations, both Power Factor and motor efficiency are used.
For actual electrical installation work, always verify cable ampacity, installation method, temperature, grouping, manufacturer’s datasheet and applicable electrical standards.
For W and kW calculations, Power Factor is used. For HP calculations, both Power Factor and motor efficiency are used.
For actual electrical installation work, always verify cable ampacity, installation method, temperature, grouping, manufacturer’s datasheet and applicable electrical standards.