AS/NZS 3000:2018
Table 8.1, B4.5 乘数
Maximum earth fault loop impedance multipliers by MCB curve
The loop impedance and cable size tools read the highest loop impedance a circuit may have for its device curve and rating. The measured or calculated Zs is compared with it.
已核验：对照印刷版标准阅读，页码 427, 449。检查于 27 Sept 2026。
单位：Multiplier ×In
这些是 AmpSize 所编码的数值。不转载标准原文。请依据现行标准核对。
3 行
| Curve | Multiplier (×In) |
|---|---|
| B | 4 |
| C | 7.5 |
| D | 12.5 |
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