Replacement equipment has adequate ampacity but an insufficient short-circuit rating. May it be installed?
- AYes, because normal load is lower
- BYes, if a larger equipment ground is installed
- No; its fault-current rating must be adequate for the installation
- DYes, if a warning label is added
Why C is correct
Ampacity addresses normal current, while short-circuit rating addresses fault energy. Grounding size and labels do not increase tested withstand or interrupting capability.