Sprinkler, Automatic : A fire suppression or control device that operates automatically when its heat-actuated element is heated to its thermal rating or above, allowing water to discharge over a specific area
NFPA 13D Standard for the Installation of Sprinkler Systems in One and Two-Family Dwellings and Manufactured Homes, 2002 ed. http://pozhproekt.ru/nsis/nfpa/NFPA13D-2007.pdf, (Std: Instll of Sprnk Sys in One and Two-Family Dwellings and Manufactured Homes - Amer) {179 NFC}