Fire Break 4 : An open space separating buildings, stored products or other combustible materials, which is capable of restricting the spread of fire. (BS 4422(2)) A natural or cleared strip of land in a forest, which may be ploughed
H. J. Porter (Chairman - Technical Committee), Dictionary of Fire Technology, The Institution of Fire Engineers, The Victory Press (Leicester) Ltd. 1979 UK. (Fr Tech - Brit) {81}