Construction Calculator A1 Pro

Electrical Calculations — a complete new section, 69 calculators. LOAD CALCULATION Size a whole structure's electrical load in one place: connected load, maximum demand, design current, phase balance and the sanctioned load figure your utility asks for. Export the sheet as Excel or PDF with your company details on it. CABLES & CONDUIT Cable sizing, voltage drop, maximum run length, cable weight and drum counts, conduit fill, cable tray sizing and support quantities. PROTECTION & MOTORS Breaker and MCB sizing, RCD/RCCB selection, fault level, motor full-load current, starter and contactor selection, power factor correction. LIGHTING Lumen method fixture counts, illuminance checks, fixture spacing, lighting power density and street lighting layouts. EARTHING & LIGHTNING Earth conductor sizing, electrode resistance, multiple electrodes, earth pit materials and lightning protection. POWER SOURCES Transformer sizing and loading, DG set sizing and fuel cost, UPS and battery banks, solar PV capacity, panel counts and off-grid storage. QUANTITY & BOQ Wiring point, wire, conduit, termination and distribution board estimators that feed straight into your BOQ. CONVERTERS Electrical units, conductor size (mm² / AWG / kcmil / SWG) and illuminance (lux / foot-candle). Everything follows your region — India, USA, Canada, Australia, Europe and the Gulf each get their own voltages, demand factors and standard breaker ratings. ALSO NEW • Metal Library — alloy and section reference data • Material Library with specification lookup • New BOQ sheet flow and house-cost standards • Region-accurate concrete grade data • The Quantity tab now orders itself by your role and region • Calculator inputs sit two per row, so there's less scrolling • A What's New screen, so you can see each update at a glance FIXES • Concrete quantities showed NaN after changing the grade • The keyboard's Next could skip a field in the metal calculators • PDF export could hang on the web • Grid and layout fixes on wide screens Electrical sizing results are indicative and should be verified by a licensed electrical engineer against your local code.