Calculators

Learning and design aids that illustrate the concepts behind cable sizing, voltage drop and maximum demand. All calculators are in beta — results are indicative only, may not always be correct, and must be cross-referenced against the current standards, manufacturer data and a licensed person's verification. The fault finder is the main tool here.

Beta

Cable Sizing Calculator

Current capacity, derating, voltage drop and a recommended size — single- or three-phase.

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Beta

Voltage Drop Calculator

1φ, 3φ or DC — table (mV/A·m) or impedance method, with the full working shown.

Open

Beta

Maximum Demand — Load Schedule & Assessment

Load schedule with per-phase demand, imbalance, motors and method selection — your assessment, not an automated Standards calculation.

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