BS EN 54-1:2011 pdf download

BS EN 54-1:2011 pdf download.Fire detection and fire alarm systemsPart 1: Introduction.
3.123
fire protection system
FPS
group of devices that in corn bination are capable of automatically actuating measures to limit the effect of fire
EXAMPLE Compartmenlatlon systems, smoke control systems anct fire fighting systems
3.1.24
flame detector
fire detector responding to radiation emitted by flames from a lie
EXAMPLE Infrared (IR) flame detectors, uNra-wolet (UV) flame detectors, miitlband flame detectors
3.1.25
heat detector
detector which responds to an increase in temperature
3.1.26
hierarchical system
networked system in which one CIE is designated as the main CIE and in which the main CIE is able to receive signals from and/or transmit signals to the CIE of a sub-system, and indicate the status of the CIE of a sub-system
3.1.27
Infrared lR) flame detector
flame detector responding only to radiation having wavelengths eater than 850 nm
3.1.28
ionization smoke detector
detector sensitive to combustion products capable of affecting ionization currents within the detector
3.1.29
input/output device
device connected to a transmission path of a fire detection and fire alarm system, used to receive and/or transmit electrical signals necessary for the operation of the fire detection and lie alarm system
3.1.30
Installation
work of fixing and interconnecting the components and elements of a system, which may be carned out by one or more parties
3.1.31
installed system
system after installation and commissioning has been completed
3.1.32
lIne detector
detector which responds to the phenomenon sensed in the vicinity of a continuous line
3.1.33
linear heat detector
detectors which respond to heat applied to any point along the length of the sensing element
3.1.34
line smoke detector using an optical beam
detector consisting at least of a transmitter and a receiver and which may include reflector(s) for the detection of smoke by the attenuation and/or changes in attenuation of an optical beam
3.1.35
line type heat detector
detector wtiidi responds to heat sensed in the vicinity of a continuous line
EXAMPLE Linear heat detectors. miitpolnt heat detectors.
NOTE A line type heal detector may consist of a sensor control unit, a sensing element and functional units.
3.1.36
manual call point
component of a fire detection and fire alarm system which is used for the manual initiation of an alarm
3.1.37
manual call point type A: direct operation
manual call pont In which the change to the alarm condition Is automatic (i.e. without the need for further manual action) when the frangible element Is broken or displaced
3.1.38
manual call type B: indirect operation
manual call point in which the change to the alarm condition necessitates a separate manual operation of the operating element by the user after the frangible element is broken or displaced
3.1.39
multi-band flame detector
flame detector having two or more sensing elements each responding to radiation In a distinct wavelength range and each of whose outputs may contribute to the alarm decision
3.1.40
multi-point detector
detector which responds to the phenomenon sensed in the vicrUty of a number of fixed points
3.1.41
multi-point heat detector
detector which contains multiple discrete temperature sensors, separated by a distance embedded within a sensing element
3.1.42
multi-sensor detector
detector using more than one sensor to respond to one or more phenomenon of fire
3.1.43
networked system
fire detection and fire alarm system in which control and indicating equipment are interconnected arid aoe to exchange ioformation
3.1.44
non-detachable detector
detector which is designed to be mounted directly to a surface without the use of a mounting base
3.1.43
non-resettable detector (with exchangeable elements)
detector which, after response, requires the renewal of a component or components to restore it to its normal state of readiness
3.1.46
non-resettable detector (without exchangeable elements)
detector which, after response, cannot be restored from its alarm state to its normal state of readiness.