BS EN 54-1-2021 Fire detection and fire alarm systems – Part 1: Introduction.
This document ddlnes the terms and definitions that are used througsout the EN 54 sertes o standards. It gives the pniactples on wtiicii each part otthe series has been based and decrtbes the functions carned out by the components of a lire detection and fire alarm system.
This document applies to fire detection and fire alann systems far buildings and civil engineering wants. 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 test 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 definrncms apply.
ISO and IEC maintain terminological databases Inc use in standardisation at the following addresses:
— IEC Electropedia: avaibble at httpsjtwwwckrupcdurgI
— ISO Online browsing platform: available at https.J/wwaso.arg/iibp
3.1access level
one of several states of equipment in which selected
— controls can be operated;
— imanual operations can be carried out;
— indications are visle; and/or
— information can be obtained and changed.
ISOtJRCE: ISO 7240-1:2014.21.3, modifledl
3.2addressable devIce
device that can be individually Identified at the CIE
3.3aerosol tunnel
smok. 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
3.4ancillary equipment
equipment which supports fire related functions not currently defined In EN 54.BS EN 54-1 pdf download.