Ground Wire for Feeders

[jim dungar]

Utilities don't mention EGC because they are rarely dealing with EGC's as they are typically only talking service conductors.

Actually the NEC part they don't follow is the 480Y/277V.
Utilities regularly employee grounding conductors, haven't you ever seen the grounding requirements for installing a padmount transformer?

 

[kwired]

Actually the NEC part they don't follow is the 480Y/277V.
Utilities regularly employee grounding conductors, haven't you ever seen the grounding requirements for installing a padmount transformer?

Yes but a feed that actually leaves that transformer is composed of ungrounded conductors and only one grounded conductor. Their grounding electrode conductors and other bonding jumpers are typically a separate path and not parallel to neutral current with the exception of being parallel via earth and an electrode at another structure which is unavoidable.

 

[jim dungar]

Their grounding electrode conductors and other bonding jumpers are typically a separate path and not parallel to neutral current with the exception of being parallel via earth and an electrode at another structure which is unavoidable.

All of the major utilities in this area show both the customer's grounding and grounded conductors on their 'meter manual' sheets. So when you ask for information on a 120/240V single phase service their installation requirements shows 4 conductors. The fact that they do not want your GEC connected to their equipment is irrelevant, they are acknowledging 'ground' exists as being separate from the neutral.