Home Backup Generator Sizing Calculator
Wired White v1 Size a home generator for running loads, sequenced motor starts, voltage dip and site derating. Estimate part-load fuel use, monthly cost and a conditional solar–battery cost crossover.
Electrical installations
Cable size, voltage drop and short-circuit current for low-voltage installations, with the method behind each value. Estimates for planning; installation work belongs to a qualified electrician.
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Appliance Energy & Electricity Bill Calculator: kWh, Inverter AC
Wired White v1 Estimate appliance kWh, electricity units and bills from your own flat or slab rates. Compare fridge and inverter AC replacements using labels, duty cycles or seasonal ratings.
House Electrical Load Schedule: Demand, Breakers & Cables
Wired White v1 Build a house load schedule, balance single-phase circuits, and estimate demand, main breaker and supply kVA. Compare editable IEC-style factors with the NEC 220.82 optional-method structure.
Three Phase Power Calculator: kW, kVA, Amps, Star/Delta & Neutral
Wired White v1 Calculate balanced three-phase kW, kVA and amps, convert motor hp, and solve unbalanced star or delta loads with neutral-current phasors and animated waveforms.
12/24/48 V DC Wire Size & Fuse Calculator
Wired White v1 Size copper cables and DC fuses for inverters, solar battery circuits and car audio. Check voltage drop, thermal derating, fault interruption and alternator capacity.
Power Factor Correction Calculator: kVAR, Savings & Resonance
Wired White v1 Size a three-phase capacitor bank, compare star and delta capacitance, estimate tariff savings and screen resonance. Includes detuned reactors, power triangles and a motor no-load limit.
Earth Electrode Resistance Calculator
Wired White v1 Estimate rod, plate, strip and ring earth resistance from soil resistivity or a Wenner test. Include rod screening, seasonal variation and a clearly bounded TT RCD check.
Short-Circuit Current Calculator
Wired White v1 Estimate three-phase and single-phase fault current, motor backfeed and peak current using a simplified IEC 60909 impedance model. Compare duty with breaker capacity.
Recessed Lighting Layout and Lux Calculator
Wired White v1 Plan recessed-light spacing and count from lumens, beam angle and mounting height. Compare lux heat maps, average light levels and uniformity with a task target.
Cable Size and Voltage Drop Calculator
Wired White v1 Size a cable or find its maximum current and kW at 1%, 3% and 5% voltage drop. Compare computed heating, device coordination and fault-loop limits with explicit IEC and NEC assumptions.
