- Reaction score
- 3,818
The overall ccc of the cable needs to be the lowest rating if installed using different reference methods using the most onerous methodYes, 4D4A is for ambient air temp of 30. So for cable in free air Ref E - well the cable isn't buried any more - so 433.1.203 doesn't apply and that part of the cable doesn't need derating from what's listed in the table ?