Built by engineers, for engineers

The whole electrical design — to AS/NZS.

Size the cables, build the schedule, lay out the containment, calculate the demand and issue the drawing set — from one model, with the working shown.

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Works to
AS/NZS 3008.1.1
AS/NZS 3000
NCC J9D4
AS/NZS 2053

Single line diagram — worked example

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SUPPLY400/230 V · 3Ø+N · 50 Hz · 630 A · MD 412 AkWhCT metering630 AW-01 · 160A · 4C+E 70mm²W-ESB · 250A · 4x1C+E 120mm²CB 250AW-EV · 100A · 4C+E 35mm²W-GEN · 250A · 4x1C+E 120mm²CB 250AMSBMSB · CT630 A50 kA · Form 3b · AS 61439NORMAL / MAINESSENTIAL SERVICES SECTIONUNMETERED EV SECTION01kWhW-01160 A · 3P4C+E 70 mm² Cu→ DB-L102W-0263 A · 3P4C+E 25 mm² CuHouse services · 55 A03kWhW-ESS250 A · 3P4x1C+E 120 mm² Cu→ ATS04W-EV100 A · 3P4C+E 35 mm² Cu→ DB-EVSWITCHBOARD ENCLOSURENNEUTRAL CIRCUITSEEARTH CIRCUITSMEN LINKDB-L1DB · CTNORMAL / MAIN01L-0120 A · 3P2C+E 4 mm² CuLighting · 13 A02P-0132 A · 3P2C+E 6 mm² CuPower GPOs · 22 AATSATS (changeover)ESS-SBMSSB · CT250 A25 kA · Form 2bESSENTIAL SERVICES SECTION01LIFT-140 A · 3P4C+E 10 mm² CuMLift 1 · 35 A02SEF-0125 A · 3P4C+E 4 mm² CuMSmoke exhaust · 19 A03XL-016 A · 3P2C+E 1.5 mm² CuExit lighting · 3 ADB-EVDBUNMETERED EV SECTION01EV-0163 A · 3P4C+E 25 mm² CuCharger bank A · 48 AGGENGeneratorCLASSIFICATIONNORMAL / MAINESSENTIAL SERVICESUNMETERED EVASwireSINGLE LINE DIAGRAMPROJECTRiverside QuarterCLIENTWorked exampleLOCATIONMelbourne, VICDATEDRAWING NOE-1001REVISIONCNOTES1.Indicative only. Verify against the current published AS/NZS standards and manufacturer data.2.To be certified by a qualified (CPEng) electrical engineer before construction or procurement.3.Do not scale from this drawing.4.Confirm all site conditions, supply arrangements and authority requirements before work.GROUNDLEVEL 1

Not a screenshot — the same renderer the tool uses, driven by the same model that exports to DXF for CAD and to PDF for the report.

General notes

What it does

  1. 01

    Cable sizing with the working shown

    To AS/NZS 3008.1.1. Every result states the table it came from, the derating factors applied and the governing constraint — so a reviewer can follow the calculation instead of trusting it.

  2. 02

    Maximum demand, both ways

    AS/NZS 3000 Appendix C by load group, or ADMD where the design is still at concept stage and you need a supply figure now.

  3. 03

    Containment that follows the cables

    Trays, conduits and trenches sized from the cables actually routed through them. Change a tray’s grouping and every circuit it under-derates is flagged for re-size under Cl 3.5.

  4. 04

    EV provisioning to the NCC

    J9D4 share and per-space allowance, carried through to the DB-EV schedule and the building’s maximum demand.

  5. 05

    One model, every deliverable

    Single line diagram to DXF and PDF, cable schedule to Excel, specification to Word. Change the design once and the set follows.

  6. 06

    Indicative, and it says so

    Every document leaves carrying a verification notice. Results are a design aid — verify to AS/NZS and certify by a CPEng.

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