Ads
related to: smoke alarms uksmartholidayshopping.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
Smoke detector mounted on a ceiling. A smoke detector is a device that senses smoke, typically as an indicator of fire.Smoke detectors/alarms are usually housed in plastic enclosures, typically shaped like a disk about 125 millimetres (5 in) in diameter and 25 millimetres (1 in) thick, but shape and size vary.
Fire alarm systems are required in most commercial buildings. They may include smoke detectors, heat detectors, and manual fire alarm activation devices (pull stations). All components of a fire alarm system are connected to a fire alarm control panel. Fire alarm control panels are usually found in an electrical or panel room.
Text of the Fire Safety and Safety of Places of Sport Act 1987 as in force today (including any amendments) within the United Kingdom, from legislation.gov.uk. Following a fire on 11 May 1985 at the Bradford City football ground [ 12 ] in which 56 people died a committee was set up to examine the Safety of Sports Grounds Act 1975 .
For smoke detectors according to EN 54-7 and fire detectors with smoke sensor (parts 12, 20 and 30 of EN 54) the test fires TF2, TF3, TF4 and TF5 are used. The EN 54-20 defines the following test fires with reduced fuel quantity for aspirating smoke detectors with enhanced or very high sensitivity (class A or B): TF2A and TF2B; TF3A and TF3B
Conventional products released by Gent include the Xenex control panels, C3 conventional sounders, which were available with voice, [15] and the 17800 detector range (consisting of the 17830 Ionisation Smoke Detector, 17840 Optical Smoke Detector, 17850 Fixed Rate Heat Detector, 17860 Rate of Rise Heat Detector, and 17870 High Heat Detector ...
This pattern, which is also used for smoke alarms, is named the Temporal-Three alarm signal, often referred to as "T-3" or "Code-3" (ISO 8201 and ANSI/ASA S3.41 Temporal Pattern) and produces an interrupted four count (three half second pulses, followed by a one and one half second pause, repeated for a minimum of 180 seconds).
Ads
related to: smoke alarms uksmartholidayshopping.com has been visited by 1M+ users in the past month