Voltage drop workflow
A practical sequence for using voltage-drop and cable-sizing tools with Australian metric inputs.
Workflow
- Identify the circuit, submain or equipment feed being reviewed.
- Confirm phase arrangement, supply voltage, design current and one-way route length.
- Use the voltage-drop calculator first when the conductor size is already being reviewed.
- Use the cable-size calculator when the task is candidate-size screening.
- Use the submain calculator when upstream and downstream voltage-drop allocation matters.
Review table
| Check | Why it matters | Where to use it |
|---|---|---|
| Supply voltage | Sets the percentage drop basis | Voltage drop and submain calculators |
| Route length | Drives the voltage-drop estimate | Cable route and estimating notes |
| Load current | Connects demand to the conductor review | Load current and maximum demand tools |
| Conductor context | Keeps the result tied to the selected cable | Cable-size calculator and formula chart |
Output review
Use the result as a calculation worksheet. Keep the entered values, source of current, conductor context and project note with the record so another person can review the basis.