Paul:
quote:
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They ran PVC to the new poles from the OH grid, and ran triplex to each pole. The ground (earth) consisted of a driven ground rod at each pole.
To respond to your questions...
To the best of my knowledge, there is no GFI protection on our utility lines, as the 120/240 volts is obtained from pole mounted transformers. This 120/240 supplies various loads, street lights, site lights, traffic signals, and customers.
Again, as far as I know, the grounds (earth) for the poles is via a driven rod, unless the neutral from the triplex is tied to it inside the poles. I have no jurisdiction as AHJ on the utility equipment, and I have not seen the inside of these poles. We removed a utility metal pole (site lite) that was hit by a truck, and it's ground (earth) was only a driven rod. (120/208 volt feed in triplex in PVC)
Hope this answers your questions. Perhaps BJarney has some input; or one of the "line guys".
John
