A sounding device activated by a waterflow detector or alarm check valve and arranged to sound an alarm that is audible in all living areas over background noise levels with all int 58、ervening doors closed.Waterflow Detector. An electric signaling indicator or alarm check valve actuated by ...
(高清) NFPA 72-2016 美国标准.pdf,NFPA 72® National Fire Alarm and Signaling Code 2016 Edition - - ` ` , ` , , , ` ` , , , ` , ` , ` , , , , , , ` , ` , , - ` - ` , , ` , , ` , ` , , ` - - - NFPA, 1 Batterymarch Park, Quincy, MA 02169-7471 ...
免费在线预览全文 {经营管理知识}NFPA标准 系列 NFPA13D StandardfortheInstallationofSprinklerSystemsinOne-andTwo-Famil yDwellingsandManufacturedHomes 1999Edition Copyright©1999NFPA,AllRightsReserved ThiseditionofNFPA13D,StandardfortheInstallationofSprinklerSystemsinOne-andTwo-FamilyDwe llingsandManufacturedHomes...
A sounding device activated by a waterflow detector or alarm check valve and arranged to sound an alarm that is audible in all living areas over background noise levels with all intervening doors closed.Waterflow Detector. An electric signaling indicator or alarm check valve actuated by waterflow...