AS/NZS 3000:2018
I1
Protective device ratings for imperial cables in alterations and repairs
The imperial cable tool reads the protective device rating Table I1 allows for an old imperial conductor, by wire count and wire diameter, installation method, insulation temperature rating and device type. The table is for alteration and repair work.
已核验：对照印刷版标准阅读，页码 540–541。检查于 26 Sept 2026。
单位：Rating A, Diameter in 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。
14 行
| Size | Wires | Diameter in | Method | V 75 cb | V 75 fuse | V 60 cb | V 60 fuse |
|---|---|---|---|---|---|---|---|
| 1/.044 | 1 | 0.044 | unenclosed | 13 | 10 | 10 | 8 |
| 1/.044 | 1 | 0.044 | partially-surrounded | 10 | 8 | 8 | 6 |
| 3/.029 | 3 | 0.029 | unenclosed | 16 | 12 | 13 | 10 |
| 3/.029 | 3 | 0.029 | partially-surrounded | 13 | 8 | 10 | 6 |
| 3/.036 | 3 | 0.036 | unenclosed | 20 | 16 | 16 | 10 |
| 3/.036 | 3 | 0.036 | partially-surrounded | 16 | 10 | 10 | 8 |
| 1/.064 | 1 | 0.064 | unenclosed | 20 | 16 | 16 | 12 |
| 1/.064 | 1 | 0.064 | partially-surrounded | 16 | 10 | 13 | 8 |
| 7/.029 | 7 | 0.029 | unenclosed | 32 | 20 | 25 | 16 |
| 7/.029 | 7 | 0.029 | partially-surrounded | 20 | 16 | 16 | 12 |
| 7/.036 | 7 | 0.036 | unenclosed | 40 | 25 | 32 | 20 |
| 7/.036 | 7 | 0.036 | partially-surrounded | 25 | 20 | 20 | 16 |
| 7/.044 | 7 | 0.044 | unenclosed | 50 | 32 | 40 | 25 |
| 7/.044 | 7 | 0.044 | partially-surrounded | 32 | 25 | 25 | 20 |