Two conduits are encased in a red concrete duct bank with a minimum cover of thirty inches below finished subgrade. A two-zero bare copper ground wire runs along the medium voltage duct bank above the conduits. Warning tape is placed in the backfill material per specification above the concrete encasement. Minimum clearances include three inches of concrete surrounding the sides and bottom of the conduits, and two inches of separation between the conduits.
2" MIN. 30" MIN 3" MIN 3" MIN 3" MIN 3" MIN CONDUIT SIZE AS SHOWN RED CONCRETE FINISHED SUBGRADE FINISHED GRADE SPECIFICATION BACKFILL PER 2/0 BARE COPPER ALONG MV DUCT WARNING TAPE BANK
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