Switchboard load schedule workflow
A field-oriented guide to preparing Australian switchboard load rows before using maximum-demand and phase-balancing calculators.
Purpose of the load schedule
A switchboard load schedule turns scattered project information into rows that can be reviewed. Good rows make maximum-demand and phase-balancing calculations easier to check because the source, phase, load type and assumption are visible.
The schedule should not hide judgement inside a final number. It should show how the number was built so another reviewer can find the row that controls the result.
Build the row before calculating
- Name the board, circuit, load group or equipment.
- Record whether the row is single phase, three phase or a grouped allowance.
- Enter the known current, kW, kVA or calculated current basis.
- Record the factor, diversity or allowance as a user-entered project assumption.
- Keep spare capacity and review notes separate from fixed load values.
- Use phase-balancing only after row values and phase allocation are clear.
Schedule fields
| Field | Purpose | Review question |
|---|---|---|
| Board or circuit label | Identifies where the row belongs | Can another reviewer find this row on drawings or schedules? |
| Load type | Separates lighting, power, equipment, EV or other groups | Does the row belong in this demand group? |
| Phase allocation | Shows single-phase distribution or three-phase basis | Does the load affect phase balance? |
| Entered current or power | Carries the numerical basis | Is the source measured, scheduled or assumed? |
| Demand or allowance factor | Records the user-entered assumption | Is the factor justified by the project method? |
| Review note | Captures authority, DNSP or designer caveats | What must be checked before relying on the row? |
Boundaries
- Do not treat the worksheet as a final compliance assessment.
- Do not hide demand assumptions inside one unexplained total.
- Do not reuse old switchboard rows without checking the current project.
- Do not publish fixed demand-factor claims without a documented source and review basis.
Switchboard load schedule workflow in Australian work
Show how to structure switchboard load rows so maximum-demand and phase-balancing calculator outputs stay traceable. The useful record is not just the final number or definition; it is the combination of the entered value, the supply arrangement, the equipment or circuit reference and the decision that still needs project review.
switchboard load schedule workflow for Australian maximum-demand and phase-balancing calculations Keep the wording in Australian English, use metric units, and treat 230/400 V a.c. at 50 Hz as the ordinary low-voltage context unless the project information states a different value.
Checks that belong beside this page
- Regional scopeAustralia; Australian English; project, DNSP, local authority, product and standards source documents can override worksheet assumptions.
- Standards contextAS/NZS 3000 context noted for project review; current standards, authority requirements and project design records remain controlling sources.
- Review timingReview cadence: Annual or when maximum-demand fields, phase-balancing fields, load-schedule table rows or Australian standards context changes.. Update trigger: Calculator field change, switchboard table change, standards context update, DNSP/local authority requirement update or project feedback.
Practical use sequence
For Switchboard load schedule workflow, begin with the circuit, board, load, cable route, equipment item or measurement record named by this topic. Record the value basis, such as current, voltage, kW, kVA, route length, test value, product rating, tariff value or worksheet field, then note the review boundary so another person can see what this page explained and what still needs a project decision.
The strongest Switchboard load schedule workflow record is specific enough to be reviewed later. It names the Australian context, keeps the entered assumptions visible, separates calculation support from compliance decisions and shows where a calculator, table, chart or term definition should be opened next.
Record detail to capture
Keep the Switchboard load schedule workflow note attached to Australia; Australian English; project, DNSP, local authority, product and standards source documents can override worksheet assumptions.. When the page is used during design, estimating, testing, review or study work, write the entered assumption, the source that supplied it, the circuit or equipment label and the person or role that must review the following action.
For Switchboard load schedule workflow, the review cadence is Annual or when maximum-demand fields, phase-balancing fields, load-schedule table rows or Australian standards context changes. and the update trigger is Calculator field change, switchboard table change, standards context update, DNSP/local authority requirement update or project feedback.. If the topic connects to Maximum demand, open that page after the current definition, input basis or boundary has been recorded, so the next calculation inherits the right Australian context.
A complete Switchboard load schedule workflow record leaves four facts visible: why the page was opened, which Australian supply or equipment context applies, which value remains user-entered and what later change would alter the result. That makes the page useful as a working note instead of a loose reference copied away from the project evidence.
- InputsWrite down the entered values and their units before comparing results across calculators or reference pages.
- LocationKeep the value tied to the board, circuit, cable run, equipment terminal, supply point or worksheet row it describes.
- Authority checkCompare the record with current Australian requirements, DNSP or local authority conditions and product information.
- Review trailRetain the date, edition context and reason for the calculation so later changes can be traced.
Connected AUWiring pages
Use the related pages for Switchboard load schedule workflow when the topic needs a calculator input, lookup table, formula chart or supporting term before the project record is complete. Open Maximum demand first when that page owns the next value or definition.
- Maximum demandBuild a user-entered switchboard load worksheet.
- Phase balancingReview entered single-phase load distribution across phases.
- Load currentPrepare current values before entering schedule rows.
- kVA, kW and power factorPrepare apparent and real power values for load rows.