UF-B can be used in applications permitted for NMC in Section 334. 10(B) of the National Electrical Code.Standards & References: ASTM - B3 and B-8 UL Standard 83 UL Standard 493 Federal Specification A-A-59544 National Electrical Code, NFPA 70, 2011 Edition RoHS/ REACH. Construction: Manufactured as a 2 or 3 conductor cable with ground wire. Copper conductors are annealed (soft) copper, solid of compressed stranded. Phase conductors are polyvinyl chloride (PVC) insulated, nylon jacketed, color coded for identification purposes. Jacketed with sunlight and moisture resistant gray PVC. 6 Gauge conductors are stranded ground is 10 gauge solid. This is brand new wire. Please visit my store for more wire types and sizes. BRAND NEW CORD CUT OFF ORIGINAL REEL. The item "30 ft 6/3 UF-B WG Underground Feeder Direct Burial Wire/Cable" is in sale since Tuesday, March 10, 2020. This item is in the category "Business & Industrial\Electrical Equipment & Supplies\Wire, Cable & Conduit\Wire & Cable\Multiple Conductor Cable". The seller is "reelwire" and is located in Toledo, Illinois. This item can be shipped to United States.