AS/NZS 3008.1.1:2017
Table 52
Values of constant K for determination of permissible short-circuit currents
This table gives one flat k factor per material and insulation. The cable size and fault rating tools read Table 52 from the short-circuit limits table instead. There, the k factor depends on the temperature limits Tables 53 and 55 set.
Na-verify: binasa laban sa naka-print na standard, mga pahina 121–122. Na-check noong 19 Sept 2026.
Mga unit: K A·s^0.5/mm2
Ito ang mga value na ine-encode ng AmpSize. Walang text ng standard na inilalathala. I-verify laban sa kasalukuyang standard.
4 na row
| Material | Insulation | Initial temp C | Final temp C | K (A·s^0.5/mm2) |
|---|---|---|---|---|
| Cu | PVC | 75 | 160 | 111 |
| Cu | XLPE | 90 | 250 | 143 |
| Al | PVC | 75 | 160 | 73.6 |
| Al | XLPE | 90 | 250 | 94.5 |