BS EN 54-1-2021 pdf free download.Fire detection and fire alarm systems Part 1: Introduction
This document defines the terms and definitions that are used throughout the EN 54 series of standards.
It gives the principles on which each part of the series has been based and describes the functions carried out by the components of a fire detection and fire alarm system.
This document applies to fire detection and fire alarm systems for buildings and civil engineering works.
This document does not apply to smoke alarm devices which are covered by EN 14604.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 54 (all parts), Fire detection and fire alarm systems
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
3.1 access level
one of several states of equipment in which selected
— controls can be operated;
— manual operations can be carried out;
— indications are visible; and/or
— information can be obtained and changed.
[SOURCE: ISO 7240-1:2014, 2.1.3, modified]
3.2 addressable device
device that can be individually identified at the CIE
3.3 aerosol tunnel
smoke tunnel
test arrangement, producing a well-controlled increase of an artificial aerosol for the purpose of a reproducible assessment of the response behaviour of a smoke detector
3.4 ancillary equipment
equipment which supports fire related functions not currently defined in EN 54
3.5 aspirating smoke detector
smoke detector, in which air and aerosols are drawn through a sampling device and carried to one or more smoke sensing elements by an integral aspirator (e.g. fan or pump)
Note 1 to entry: Each smoke-sensing element may contain more than one sensor exposed to the same smoke sample.
3.6 building management system
facilities used to monitor, control and manage equipment installed in a building for comfort, safety and/or security purposes
3.7 combustion gas detector
fire detector sensitive to gaseous products of combustion and/or thermal decomposition EXAMPLE Carbon monoxide fire detector.
3.8 commissioning
activating and testing of the system according to the design
[SOURCE: EN 16763:2017, 2.12]
3.9 compatibility
ability of a component of the system to operate with another component of the same system
3.10 competent person
individual who, in relation to the work undertaken, has the necessary knowledge, skill, tools and experience to complete the defined task satisfactorily and safely
3.11 component
device contained in one housing (or cabinet), that performs a function, several functions or part of a function of a fire detection and fire alarm system
EXAMPLE Fire detectors, alarm devices and control and indicating equipment are components of a fire detection and fire alarm system.
Note 1 to entry: Where a function is distributed in separate housings each housing is considered as a separate component.
3.12 control and indicating equipment
CIE
component of a fire detection and fire alarm system through which other components may be supplied with power and which is used:
a) to receive the signals from the connected detectors and/or manual call points;
b) to determine whether these signals correspond to a fire alarm condition;
c) to indicate any such fire alarm condition audibly and visually;
d) to indicate the location of the danger.
Note 1 to entry: CIE is used to monitor correct functioning of the system and give audible and visible warning of any faults (e.g. short circuit, line breakage, or fault in the power supply); and, if necessary is able to pass on the fault warning through fault warning routing equipment to a fault warning receiving centre.
Note 2 to entry: If necessary CIE is able to pass on the fire alarm signal; for example:
— to audible or visible fire alarm devices or to a voice alarm system;
— to the fire alarm routing function to a fire alarm receiving centre;
— to the control function for fire protection equipment or systems;
— to ancillary equipment (e.g. fire brigade panel).
3.13 detachable detector
detector which is designed for removal of the head from its base
Note 1 to entry: The use of detachable detectors can assist during maintenance without disconnecting the fixed wiring.
3.14 distributed CIE
single CIE which is contained in cabinets, which are physically separated from each other
Note 1 to entry: The requirements are given in EN 54-2.
Note 2 to entry: See Annex B for examples.
3.15 distributed VACIE
single VACIE which is contained in cabinets, which are physically separated from each other
Note 1 to entry: The requirements are given in EN 54-16.
Note 2 to entry: See Annex B for examples.
3.16 duct smoke detector
detector that monitors the air in an air duct to detect smoke.BS EN 54-1 pdf download.