Voltage Drop - Calculated Industries ElectriCalc LT User Manual

Voltage Drop

The reduction in voltage between the
power source and the load can be de-
termined by entering the phase, volts,
amps, wire material, voltage drop wire
size and length of run. The calculator
determines resistance and then the
voltage reduction. Voltage drop can be
displayed as volts dropped, or as a
percent reduction of potential load.
This calculator also finds voltage drop
wire size once you have entered or
calculated the phase, volts, amps,
length, wire type, and allowable VD
percentage. It will solve for the distance
([Length]) once you have entered or
calculated the phase, volts, amps, wire
type, voltage drop wire size, and allow-
able VD percentage. The ElectriCalc LT
uses resistance values found in NEC
Table 8 to determine voltage drop.
NOTE: Voltage drop solutions may vary
slightly from actual AC circuit measure-
ments as the calculator does not incor-
porate factors such as inductive reac-
tance, skin effect, raceway material, etc.
In most situations, the DC Voltage Drop
calculation is sufficient to meet safety
standards.
User's Guide — 31