AS/NZS 3000 Maximum Demand Worksheet
Apply user-entered category demand factors to a structured load schedule and estimate diversified demand without embedding an unverified Wiring Rules table.
Open calculatorElectrical installation · Australia
Australian Fixed Wiring Calculators
Calculators for Australian fixed electrical installation checks, including load, cable, containment, protection, motor, solar, and EV wiring.
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Breaker Selectivity Limit Check
Compare a downstream prospective fault current with a manufacturer-published selectivity limit for one exact protective-device pair.
Open calculatorCable Capacity Check
Compare design current and protective-device rating with a user-entered cable ampacity after a verified combined correction factor. No cable tables are included.
Open calculatorCable Capacity Selector from Verified Reference Data
Reverse-calculate the reference ampacity needed for a load and protective device after an entered installation correction factor.
Open calculatorCable Derating Factor Calculator
Combine separate ambient, grouping, installation and thermal factors before applying them to a verified reference cable capacity.
Open calculatorCable Pulling Tension and Sidewall Pressure
Estimate pull tension for a horizontal straight run followed by an equivalent cable bend, expose the key intermediate tensions, and compare them with user-entered...
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