LectriCalc PalmOS - Version 3.0 Number one handheld computer calculator for the electrical industry. Tells electrical voltage drop over distance, both for AWG and metric cables. Conduit and circuit breaker sizing. Grounding conductors. NEMA starters/horsepower. Calculate amperage and wattage data.Find DC, AC single and 3-phase Kilowatts, single and 3-phase Kilovolt-Amps, Single and 3-phase Amps , horsepower, footcandle brightness. Includes reference formulas, tables.