https://scaleset.com.au/ 2026-09-22 https://scaleset.com.au/og-home.jpg?v=2 ScaleSet: Electrical Design Calculators to AS/NZS 3000 & 3008 ScaleSet share card: "Design to the Standard." for professional electrical engineers, with a panel showing 18+ free calculators, cable data and automated test counts. https://scaleset.com.au/elecad 2026-09-25 https://scaleset.com.au/elecad-single-line-diagram.jpg?v=2 Single Line Diagram Software for Engineers | EleCAD A single line diagram drawn by EleCAD: a 400 V supply through a 160 A main breaker onto a 250 A main switchboard busbar, three outgoing ways to distribution board DB-1, solar inverter INV-1 and a general load, each through its own breaker and cable, with the cable schedule under the drawing. https://scaleset.com.au/og-elecad.jpg?v=2 Single Line Diagram Software for Engineers | EleCAD EleCAD share card: a single line diagram with a supply, switchboard and three outgoing ways, each cable carrying real AS/NZS 3008 data. https://scaleset.com.au/calculator/cable-selection 2026-09-25 https://scaleset.com.au/og-cable-selection.jpg?v=2 Cable Size Calculator Australia | AS/NZS 3008 | ScaleSet ScaleSet cable selection share card: a worked 16 mm² Cu V-90 result with 1.04% voltage drop and an 80 A derated current rating. https://scaleset.com.au/calculator/max-demand 2026-09-11 https://scaleset.com.au/og-max-demand.jpg?v=2 Maximum Demand Calculator Australia | AS/NZS 3000 | ScaleSet ScaleSet maximum demand share card: Tables C1, C2 and C3 side by side with a worked result of 125 A per phase from Table C1. https://scaleset.com.au/calculator/voltage-rise 2026-09-25 https://scaleset.com.au/og-voltage-rise.jpg?v=2 Voltage Rise Calculator | Solar Inverter 2% Check | ScaleSet ScaleSet voltage rise share card: a PV array, inverter and point of supply chain with a worked 1.51% rise passing the AS/NZS 4777.1 2% limit. https://scaleset.com.au/calculator/selectivity 2026-09-25 https://scaleset.com.au/og-selectivity.jpg?v=2 Selectivity Calculator | Breaker Discrimination | ScaleSet ScaleSet selectivity share card: a time-current coordination plot with a downstream and an upstream trip curve, the selectivity limit current Is marked at 4.2 kA, and a partial discrimination verdict on the MSB to DB-1 pair. https://scaleset.com.au/calculator/conduit-sizing 2026-09-25 https://scaleset.com.au/og-conduit-sizing.jpg?v=2 Conduit Fill & Sizing Calculator | AS/NZS 3000 | ScaleSet ScaleSet conduit sizing share card: a worked 32 mm PVC conduit carrying four 16 mm² cables at a 37% space factor, within the 40% limit. https://scaleset.com.au/calculator/cable-tray 2026-09-25 https://scaleset.com.au/og-cable-tray.jpg?v=2 Cable Tray Calculator Australia | AS/NZS 3000 | ScaleSet ScaleSet cable tray share card: a worked 150 mm perforated tray holding four 25 mm² cables flat and touching, using 113 mm of width. https://scaleset.com.au/calculator/voltage-drop 2026-09-25 https://scaleset.com.au/og-voltage-drop.jpg?v=2 Voltage Drop Calculator Australia | AS/NZS 3008.1.1 | ScaleSet ScaleSet voltage drop share card: "Five percent. Not a volt more." with a worked 2.84% cumulative drop passing the AS/NZS 3000 Clause 3.6 limit. https://scaleset.com.au/calculator/c1 2026-09-25 https://scaleset.com.au/og-table-c1.jpg?v=2 Table C1 Calculator | Domestic Maximum Demand | ScaleSet ScaleSet Table C1 share card: a domestic load-group table with column 3 highlighted and a worked maximum demand of 86 A over 12 units. https://scaleset.com.au/calculator/c2 2026-09-25 https://scaleset.com.au/og-table-c2.jpg?v=2 Table C2 Calculator | Non-Domestic Maximum Demand | ScaleSet ScaleSet Table C2 share card: a non-domestic load-group table with both occupancy columns and a worked maximum demand of 287 A for an office. https://scaleset.com.au/calculator/c3 2026-09-25 https://scaleset.com.au/og-table-c3.jpg?v=2 Table C3 Calculator | Energy Demand Method VA/m² | ScaleSet ScaleSet Table C3 share card: floor-area plan with 8,600 m² at 48 VA/m² giving a worked energy demand of 413 kVA. https://scaleset.com.au/calculator/arc-flash 2026-09-25 https://scaleset.com.au/og-arc-flash.jpg?v=2 Arc Flash Calculator | IEEE 1584 Incident Energy | ScaleSet ScaleSet arc flash share card: a worked 6.8 cal/cm² incident energy at 450 mm, PPE Category 2, with a 1.42 m arc flash boundary. https://scaleset.com.au/calculator/lightning-risk 2026-09-25 https://scaleset.com.au/og-lightning-risk.jpg?v=2 Lightning Risk Assessment Calculator | AS 1768-2021 | ScaleSet ScaleSet lightning risk share card: a computed risk of loss of 0.6e-5 against a 1.0e-5 tolerable limit, so protection is not required. https://scaleset.com.au/calculator/correction-factor 2026-09-25 https://scaleset.com.au/og-correction-factor.jpg?v=2 Cable Derating Calculator | AS/NZS 3008 Factors | ScaleSet ScaleSet cable derating share card headed "Real conditions. Real ratings.", listing ambient and soil temperature, grouping and installation method, and a combined factor in one pass, from the AS/NZS 3008.1.1 correction factor tables. https://scaleset.com.au/ai 2026-09-25 https://scaleset.com.au/og-ai.jpg?v=2 AI Mode | Electrical Calculations in Plain English | ScaleSet ScaleSet AI Mode share card: a plain-English cable sizing request returning 16 mm² Cu, labelled "not generated" because a verified engine produced it. https://scaleset.com.au/calculator/pfc 2026-09-25 https://scaleset.com.au/og-power-factor.jpg?v=2 Power Factor Correction Calculator Australia | ScaleSet ScaleSet power factor correction share card: 0.82 corrected to 0.98 with a worked 142 kVAR capacitor bank in three steps. https://scaleset.com.au/calculator/switchboard-sizing 2026-09-25 https://scaleset.com.au/og-switchboard-sizing.jpg?v=2 Switchboard Sizing Calculator | AS/NZS 61439 | ScaleSet ScaleSet switchboard sizing share card: a four-bay Form 3b elevation sketch measuring 2,400 by 2,200 by 600 mm. https://scaleset.com.au/calculator/switchroom-sizing 2026-09-25 https://scaleset.com.au/switchroom-plan.jpg?v=2 Switchroom Sizing Calculator | AS/NZS 3000 | ScaleSet A switchroom plan drawn by ScaleSet: a 1600 A main switchboard and its PFC bank along one wall, two distribution boards facing them across one shared 2000 mm aisle, the working spaces tinted, two exits swinging out, dimension chains in millimetres, and the sheet reading a minimum room of 4600 by 3050 mm internal, two exits provided and the layout clear. https://scaleset.com.au/og-switchroom-sizing.jpg?v=2 Switchroom Sizing Calculator | AS/NZS 3000 | ScaleSet ScaleSet switchroom sizing share card: a main switchboard, a PFC bank and two distribution boards laid out on a plan with their 1.0 m and 0.6 m clearances hatched, sized to a 4600 by 3050 mm room with two exits. https://scaleset.com.au/calculator/earth-cable-size 2026-09-25 https://scaleset.com.au/og-earthing.jpg?v=2 Earthing Cable Size Calculator | AS/NZS 3000 Table 5.1 ScaleSet earthing share card: an earth symbol beside a 25 mm² Cu active conductor giving a 6 mm² minimum earth from AS/NZS 3000 Table 5.1. https://scaleset.com.au/calculator/converter 2026-09-21 https://scaleset.com.au/og-converter.jpg?v=2 Electrical Unit Converter | Amps, kW, kVA & HP | ScaleSet ScaleSet unit converter share card: 63 A converted to 41.9 kW, 46.5 kVA and 54.5 HP at 400 V three-phase. https://scaleset.com.au/calculator/generator-sizing 2026-09-25 https://scaleset.com.au/og-generator-sizing.jpg?v=2 Generator Sizing Calculator | Motor Starting & Fuel | ScaleSet ScaleSet generator sizing share card: a worked 275 kVA standby genset with 390 kVA motor starting and a 990 L fuel tank. https://scaleset.com.au/calculator/ups-battery 2026-09-25 https://scaleset.com.au/og-ups-battery.jpg?v=2 UPS Battery Sizing Calculator | IEEE 485 & 1184 | ScaleSet ScaleSet UPS battery share card: an 80 kW critical load for 30 minutes sized to two strings of 40 LiFePO4 cells on a 480 V DC bus. https://scaleset.com.au/calculator/bess-sizing 2026-09-25 https://scaleset.com.au/og-bess-sizing.jpg?v=2 BESS Sizing Calculator | kWh & Inverter kW | ScaleSet ScaleSet BESS sizing share card: a 20 kW load with a 30 kW peak through a 4 hour outage sized to a 115 kWh battery and a 34.5 kW inverter, with the usable window and margin applied. https://scaleset.com.au/calculator/solar-roi 2026-09-25 https://scaleset.com.au/og-solar-roi.jpg?v=2 Solar & Battery ROI Calculator | Payback, NPV & IRR | ScaleSet ScaleSet solar and battery ROI share card: a 25-year cumulative cash-flow chart with 4.8 year payback, $18.4k NPV and 19% IRR. https://scaleset.com.au/powercad-alternative 2026-09-25 https://scaleset.com.au/og-powercad-alternative.jpg?v=2 PowerCAD Alternative | Browser-Based SLD Software | ScaleSet ScaleSet comparison share card: EleCAD as a free browser-based single line diagram tool set against desktop PowerCAD. https://scaleset.com.au/calculator/led-inrush 2026-09-25 https://scaleset.com.au/og-led-inrush.jpg?v=2 LED Inrush Calculator | How Many LEDs per MCB | ScaleSet ScaleSet LED inrush share card: an inrush waveform with 22 A peak giving a maximum of 34 fittings on a 16 A C-curve breaker. https://scaleset.com.au/ai/how-it-works 2026-09-25 https://scaleset.com.au/og-ai-how-it-works.jpg?v=2 How AI Mode Works | The Model Never Does the Maths | ScaleSet ScaleSet share card showing the four-step AI Mode pipeline — describe, select, calculate, report — with only the "select" step marked as the model step. https://scaleset.com.au/pricing 2026-09-25 https://scaleset.com.au/og-pricing.jpg?v=2 ScaleSet Pricing | Free AS/NZS Calculators, Pro & AI Pro Plans ScaleSet pricing share card: Free, Pro and AI Pro plans side by side, with every calculator free on every plan. https://scaleset.com.au/design-guide 2026-09-02 https://scaleset.com.au/og-design-guide.jpg?v=2 Electrical Design Guides | AS/NZS & NCC | ScaleSet ScaleSet design guides share card: solar voltage rise and emergency lighting guides, each paired with a live calculator. https://scaleset.com.au/design-guide/voltage-rise 2026-09-25 https://scaleset.com.au/og-guide-voltage-rise.jpg?v=2 How to Calculate Voltage Rise | Worked Example | ScaleSet ScaleSet voltage rise guide share card: a four-step walkthrough of the AS/NZS 4777.1 2% limit with a worked 1.51% example. https://scaleset.com.au/design-guide/emergency-lighting 2026-09-25 https://scaleset.com.au/og-guide-emergency-lighting.jpg?v=2 Emergency Lighting Design Guide | AS/NZS 2293.1 & NCC E4 ScaleSet emergency lighting guide share card: an exit sign and luminaire spacing layout set out to the AS/NZS 2293.1 tables. https://scaleset.com.au/verification 2026-09-25 https://scaleset.com.au/og-verification.jpg?v=2 Calculation Verification | ScaleSet Electrical Design Suite ScaleSet verification share card: 1,800+ automated tests per build, checked against the standards’ worked examples and peer reviewed. https://scaleset.com.au/about 2026-09-25 https://scaleset.com.au/og-about.jpg?v=2 About ScaleSet | Platform & Creator ScaleSet about share card: Wisam Tozah, electrical engineer in Sydney, with counts of 18+ free tools and 1,800+ automated tests. https://scaleset.com.au/contact 2026-09-14 https://scaleset.com.au/og-contact.jpg?v=2 Contact ScaleSet | Support, Bugs & Feedback ScaleSet contact share card: a message form addressed to the engineer who builds the tools. https://scaleset.com.au/creator 2026-09-25 https://scaleset.com.au/og-creator.jpg?v=2 Meet the Creator | Wisam Tozah CPEng | ScaleSet ScaleSet creator share card: Wisam Tozah, CPEng NER, with registration badges and a note that every calculator is engineer-reviewed. https://scaleset.com.au/useful-links 2026-09-25 https://scaleset.com.au/og-useful-links.jpg?v=2 Useful Links | Electrical Engineering Tools | ScaleSet ScaleSet useful links share card: curated external references for standards, regulators, DNSP service rules and industry bodies. https://scaleset.com.au/changelog 2026-09-25 https://scaleset.com.au/og-changelog.jpg?v=2 Changelog | Latest Updates | ScaleSet ScaleSet changelog share card: a list of recent new, fixed and improved entries, noting only user-visible changes are listed. https://scaleset.com.au/terms 2026-09-25 https://scaleset.com.au/og-terms.jpg?v=2 Terms of Use | ScaleSet Electrical Design Suite ScaleSet terms of use share card: a plain-English terms document noting core tools are free and you remain the engineer of record. https://scaleset.com.au/privacy 2026-09-25 https://scaleset.com.au/og-privacy.jpg?v=2 Privacy Policy | ScaleSet Electrical Design Suite ScaleSet privacy share card: minimal-by-design data practices with aggregate analytics, optional accounts and no ad tracking pixels.