Fire detection and fire alarm systems .
COMPart 12:Smoke detectors-Linedetectors using an optical light beam
Adjustment : Ali MohammadAkhavan
The European Standard EN 54-12:2002 has the status ofa British Standard
ICS 13.220.30
National foreword
Cros s-references
Summary of pages
Amendments issued since publication
This British Standard is the official English language versionof EN 54-12:2002.
The UK participation in its preparation was entrusted by Technical Committee FSH/12 Fire detection and alarm systems to SubmitteeFSH/12/2 Fire detectors which has the responsibility to:
aid enquirers to understand the text; present to the responsible international/European mittee anyenquiries on the interpretation or proposals for change and keep the UK imterests informed;nonitor promulgate them in the UK. related international and European developments and
st of organizations represented on this submittee can be obtainedto its secretary.
publications referred to in this document may be found in the BSI Catalogue The British Standards which implement international or Europeanunder the section entitled “International Standards Correspondence Index" or by using the “Search” facility of the BSI Electronic Catalogue or of BritishStandards Online.
This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.
Compliance with a British Standard does not ofitself conferimmunity from legal obligations.
This document prises a front cover an inside front cover the EN title page pages 2 to 52 an inside back cover and a back cover.
The BSI copyright notice displayed in this document indicates whenthe document was last issued.
Amd. No. Date Comments
EN 54-12
ICS 13.220.20
English version
Firedetection andfirealarmsystems-Part 12:Smokedetectors -Line detectors using an opticallight beam
Systemes de detection et dfalarme incendie - Partie 12:suivant le principe de la transmission dfun faisceau dfondes Detecteurs de fumee - Detecteurs Ineaires fonctionnantoptiques rayonnees
ldeanlagen - Teil 12: Rauchmelder -ormiger Melder nach dem Durchlichtprinzip
CENmembers arebound to ply with theCEN/CENELECIntenal Regulations which stipulate the conditions for giving this EuropeanStandard thestatusofanationalstandard wihout ayalerationUp-todatelistsandbibliographicalreferences concerning suchnational
This European Standard exis in three offial versions (Engish French German). A version in any other language made by translationunder theresponsibilty of aCENmemberiitswn lnguage and ntified to the Management Centrehas the same status as the official versions.
CEN members are the national star Iceland Ireland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland and United Kingdom.
UROPEAN COMMITIEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATIONEUROPAISCHES KOMITEE FUR NOR MUNG
Management Centre: rue de Stassart 36 B-1050 Brussels
Ref. No. EN 54-12:2002 E
Capyight Brish Standaris Indit.dion
Contents
Foreword 51 2 Scope. Normativereferences. 6 63 Terms and definitions.. 84 4.1 Requirements Compliance. 9 94.2 Individual alarm indication. 94.3 4.4 Connection of ancillary devices.. Manufacturer's adjustments 9 64.5 On-site adjustment of response threshold value. Protection against ingress of foreign bodies.. 64.6 4.7 Monitoring of detachable detectors and connections. 6 94.8 4.9 Limit of pensation Additional requirements for software controlled detectors 10 104.9.1 General.. 104.9.2 4.9.3 Software design The storage of programs anddata 10 104.10 Fault signalling 105 5.1 Test methods General. 11 115.1.1 5.1.2 Atmospheric conditions for tests Operating conditions for tests... 11 115.1.3 Mounting arrangements 115.1.4 5.1.5 Tolerances 11 125.1.6 Provision for tests 125.1.7 5.2 Reproducibility Test schedule 13 145.2.1 5.2.2 Test procedure.. Object.. 145.2.3 Requirements 14 145.3 5.3.1 Repeatability Object. 14 145.3.2 Test procedur 145.3.3 5.4 Requirements Directional dependence 14 155.4.1 Test procedure... Object 155.4.2 5.4.3 Requirements 15 155.5 5.5.1 Variation of supply parameters. Object 16 165.5.2 Test procedure.. 165.5.3 5.6 Requirements Rapid changes in attenuation. 16 165.6.1 Object. 165.6.2 5.6.3 Requirements Test procedure.. 16 165.7 5.7.1 Slow changes in attenuation ... Object 175.7.2 Test procedure.. 17 175.7.3 Requirements 17
5.8 Optical path length dependence . 175.8.1 5.8.2 Object.... Test procedure. 17 175.8.3 Requirements. 5.9 Fire sensitivity. -17 .185.9.1 5.9.2 Test procedure Object. 18 185.9.3 5.10 Requirements. Stray light . 205.10.1 Object. 205.10.2 Test procedure. 205.10.3 Requirements. 205.11 5.11.1 Object... Dry heat (operational). 21 215.11.2 Test procedure 5.11.3 Requirements.. 21 215.12 5.12.1 Object. Cold (operational).. 22 225.12.3 Requirements. 5.12.2 Test procedure. 22 225.13 5.13.1 Object.... Damp heat steady state (operational).. .23 235.13.2 Test procedure 5.13.3 Requirements. 23 235.14 5.14.1 Object. Damp heat steady state (endurance)- 24 245.14.2 Test procedure.. 5.14.3 Requirements. 24 245.15 5.15.1 ( Object. Vibration (endurance). 25 255.15.3 Requirements. 5.15.2 Test procedure. 25 255.16 5.17 Electromagnetic patibilit(EMC) immunity tests (operational). Sulphur dioxide SO corroeion (endurance) .26 .275.17.1 5.17.2 Test procedure. Object. 27 275.17.3 Requirements. 275.18.2 Test proceddr 5.18 5.18.1 Object... Impact (operat 28 285.18.3 Requireme 28 286 6.1 Marking and e Marking 29 296.2 6.2.1 Gener... Documentat 29 29Annex A (normative) Bench for response threshold value measurements. 6.2.2 Software documentation. 30 31A.1 A.2 Measuring bench. Technical characteristics of the attenuators. 31 31Annex C (normative)Smouldering pyrolysis wood fire (TF2) Annex B (normative) Fire test room .. 32 34C.1 C.2 Fuel. Hotplate 34 34C.3 C.4 Heating rate.. Arrangement.. 34 35C.5 C.6 End of test condition. Test validity criteria. 35 35
