AS/NZS 3000:2018
Table 5.1, النحاس
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.
تم التحقق: مقروء مقابل المعيار المطبوع، الصفحات 278–279. تم التحقق في 27 Sept 2026.
الوحدات: Active mm², Earth mm²
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20 صفوف
| 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 |
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