AS/NZS 3000:2018
Table 5.1, parahi
Minimum earthing conductor size by active conductor size
The loop impedance and cable size tools read the smallest earthing conductor for the active conductor size. The earth size feeds straight back into the loop impedance sum.
Kua manatokotia: pānuitia ki te paerewa tā, whārangi 278–279. I tirohia 27 Sept 2026.
Ngā unit: Active mm², Earth mm²
Ko ēnei ngā uara e tuhia ana e AmpSize. Kāore he kupu o te paerewa e tuhia ana. Whakamanahia ki te paerewa o nāianei.
20 rārangi
| Active (mm²) | Earth (mm²) |
|---|---|
| 1 | 1 |
| 1.5 | 1.5 |
| 2.5 | 2.5 |
| 4 | 2.5 |
| 6 | 2.5 |
| 10 | 4 |
| 16 | 6 |
| 25 | 6 |
| 35 | 10 |
| 50 | 16 |
| 70 | 25 |
| 95 | 25 |
| 120 | 35 |
| 150 | 50 |
| 185 | 70 |
| 240 | 95 |
| 300 | 120 |
| 400 | 120 |
| 500 | 120 |
| 630 | 120 |
Ngā taputapu e pānui ana i tērā (7)
Ngā aratohu me ngā whārangi ako e whakahua ana i tēnei (15)
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