Southwire 250 ft. 14/3 Solid Type UF-B WG Underground Feeder CableSouthwire copper UF B cable is generally used as feeder to outside post lamps, pumps and other loads or apparatus fed from a distribution point in an existing building as specified in the 2011 national electrical code. UF B cable may be used underground, including direct burial. Multiple conductor UF B cable may be used for interior branch circuit wiring in residential or agricultural buildings at conductor temperatures not to exceed 90 degree Celsius