Job
Everything stays on this device and is kept in this browser as you go.
Conduit
Inside sizes differ between brands. The typical one is filled in: type the one from the conduit or its data sheet if you have it.
The usual rule allows 53% of the inside area for one cable, 31% for two and 40% for three or more. Use a lower limit for long runs or several bends.
Cables in the conduit
Typical outside sizes are filled in. Check them against the cable’s data sheet, especially for big cables.
Your details for the report
Printed at the top of the report. Kept when you start again.
Quoting the cable and conduit?Price them from your wholesaler’s list, get the quote signed on site and invoice in one tap.
Try Wattlebase free for 30 daysChecks
Every size
| Size | Inside | Fill |
|---|
A guide only. Real fill depends on the brand of conduit and cable, bends, run length and how the cables are pulled in. Allow for the cables’ derating when grouped in conduit (AS/NZS 3008.1.1), and follow AS/NZS 3000 and the conduit maker’s instructions.