ohmhead
Senior Member
- Location
- ORLANDO FLA
Question transformer with 25 feet or less to panel from transformer electrical inspector says the normal branch circuit ground in raceway is not big enough.
The normal branch table 250.122 equipment grounding conductors for grounding raceway and equipment he says this is wrong that the ground in the raceway must be larger and we need to use 250.66 for the secondary feeders from any transformer.
He wants this larger ground run inside raceway with secondary feeders from each transformer .
Because there unprotected he says these transformers are not the service these are internal down stream transformers in different locations in this building they are not the service to building .
Can you tell me why ? Or if this is actually a code issue because for many years it was 250.122 and we never had a issue .
The electrical engineer has on the one line the normal sized equipment grounding conductors running with the feeders in these raceways .
Please let me know what you think
The normal branch table 250.122 equipment grounding conductors for grounding raceway and equipment he says this is wrong that the ground in the raceway must be larger and we need to use 250.66 for the secondary feeders from any transformer.
He wants this larger ground run inside raceway with secondary feeders from each transformer .
Because there unprotected he says these transformers are not the service these are internal down stream transformers in different locations in this building they are not the service to building .
Can you tell me why ? Or if this is actually a code issue because for many years it was 250.122 and we never had a issue .
The electrical engineer has on the one line the normal sized equipment grounding conductors running with the feeders in these raceways .
Please let me know what you think