AS/NZS 3000:2018
Table 5.1, aluminium
Minimum copper earthing conductor size for aluminium active conductors
The earthing tool reads the smallest aluminium earthing conductor for the active conductor size. It is the aluminium companion to the copper table.
Verified: read against the printed standard, pages 278–279. Checked 26 Sept 2026.
Units: Active mm², Earth mm²
These are the values AmpSize encodes. No text of the standard is reproduced. Verify against the current standard.
14 rows
| Active (mm²) | Earth (mm²) |
|---|---|
| 16 | 4 |
| 25 | 6 |
| 35 | 6 |
| 50 | 10 |
| 70 | 10 |
| 95 | 16 |
| 120 | 25 |
| 150 | 25 |
| 185 | 35 |
| 240 | 50 |
| 300 | 70 |
| 400 | 95 |
| 500 | 95 |
| 630 | 120 |
Tools that read it (2)
Guides and learn pages that cite it (15)
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- AS/NZS 3000 Table 8.1: max Zs by curve and rating
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- Checking an existing circuit
- Prospective fault current at a board