Electrical Calculations

So you're looking for Electrical Calculations?
As an electrician, there are many types of calculations you'll need to know how to perform.

To begin with, when you're doing calculations with three phase voltages, use the values in the table below ( with single phase circuits, you won't need to use the 1.732 value).

Don't forget to go to our Electrical Theory page, where you will find electrical symbols, charts and formulas to calculate electrical values such as: power, current, voltage, resistance. Additionally, you will find formulas necessary to calculate DC currents, Motor and Transformer loads.

THREE-PHASE VALUES

for 208 Volts * 1.732, Use 360

for 230 Volts * 1.732, Use 398

for 240 Volts * 1.732, Use 416

for 440 Volts * 1.732, Use 762

for 460 Volts * 1.732, Use 797

for 480 Volts * 1.732, Use 831

In this section we will cover some of the basic calculations that every electrician is expected to know.

Calculate Amperage - 1 Phase & 3 Phase

Calculate Lighting Loads

Calculate Voltage Drop

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