Live Line 1 : (1) A connected hose line or reel charged with water and ready for immediate use. (2) A preconnected 1 1/2 in. or 2 1/2 in. hose line, as opposed to a booster line. See: Preconnect
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}