txg84
Electrical
- Feb 22, 2010
- 9
I was inspecting a 13.8-208/120V pad-mount transformer that serves two separate buildings. The equipment grounding conductors and the grounded conductor(1 for each building) are all bonded together at the transformer. Each building is fed by 3-phase conductors, 1-grounded conductor, and 1-equipment grounding conductor. They are not bonded together at the first disconnecting means. Is this allowed by the NEC? Article 250.30(1) allows this for any SDS, but I cannot find anything on services.
Thanks
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