Summit Electric Supply’s new Voltage Drop Calculator helps users determine the right wire for a cable run. This latest mobile app by the Albuquerque, N.M.-based Summit Electric calculates voltage and percentage drop for any size job or project.  A visual graph also displays the drop in voltage over an entire cable run, showing where allowable percentages are so quick adjustments can be made on the fly. The Voltage Drop Calculator app is free,  designed for use in the field, ...

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