I'm installing dedicated (not from the house) underground service for a new barn/shop and have a question.
PSNH requires 3" conduit, which I've installed per PSNH URD Conduit Installation (and its even passed town inspection). Next, I need to install a meter box and breaker panel. In this drawing, it appears that you go from the expansion joint to the bottom of a knockout in the meter box. When I look at meter boxes in HD or various online catalogs, I don't see any with 3" knockouts.
Does anybody know of a meter box with 3" knockouts? (and a 3" meter offset)
Does anybody know if it is OK to reduce to 2"? (The PSNH documents only mention 3")
-david