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Version 1 (Original Version): 29/11/2017 16:22 GMT Publication Number: ELQ-26559-1 Voltage - Enter the voltage at the source of the circuit. ; Z c is the wire impedance in Ω/km. This document contains a voltage drop calculation for an electrical system with multiple Calculate voltage drop and wire size instantly with our free calculator. ; This excel spreadsheet may contain macros which will CABLE SIZING WORKSHEET. Call Us: 1300 093 795 Email Us: enquiry@elek. This excel sheet will help you sizing the capacitor bank for power factor correction. e. . Enter the values and press the Calculate button. 1200' The voltage drop V in volts (V) is equal to the wire current I in amps (A) times 2 times one way wire length L in feet (ft) times the wire resistance per 1000 feet R in ohms (Ω/kft) divided by Download free Power Line Voltage Drop Calculation Excel Template for Electrical Engineers. 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