Firedetectionandfirealarm systems
Part26:Carbonmonoxidedetectors-Pointdetectors
..makingexcellence ahabit
National foreword
ISBN 978 0 580 81247 7
ICS 13.220.20
Amendments issued since publication
Date Text affected
This British Standard is the UK implementation of EN 54-26:2015.
The UK participation in its preparation was entrusted to TechnicalCommittee FSH/12/2 Fire detectors.
obtained on request to its secretary. A list of organizations represented on this mittee can be
This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correct application.
@ The British Standards Institution 2015. Published by BSI StandardsLimited 2015
Compliance with a British Standard cannot confer immunity from legal obligations.
This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2015.
EN54-26
English Version
Fire detection andfire alarm systems-Part26:Carbon monoxide detectors-Point detectors
Brandmeldeanlagen - Teil 26: Kohlenmonoxidmelder -
Systeme de detection et d’alarme incendie - Partie 26:Detecteurs de monoxide de carbone - Detecteurs ponctuels
o enuer s uo N3 Aq panoudde sem puepueis ueadoung s
CEN members are bound to ply with the CEN/CENELEC Intemal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-lo-date lists and bibliographical references conceming such national
This European Standard exists in three official versions (English French Geman). A version in any other language made by translation
status as the official versions. under the responsibily of a CEN member into its own language and notifed to the CEN-CENELEC Management Centre has the same
CEN members are the national standards bodies of Austria Belgium Bulgaria Croatia Cyprus Czech Republic Denmark Estonia Finland Fomer Yugoslav Republic of Macedonia France Gemany Greece Hungary Iceland Ireland taly Latvia Lithuania Luxembourg Malta Netherlands Noway Poland Portugal Romania Slovakia Slovenia Spain Sweden Switzerland Turkey and Unied Kingdom.
CEN-CENELEC Management Centre: Avenue Mamix 17 B-1000 Brussels
Contents
Foreword.Introduction.... ...1 Scope.2 Normative references ..3 Terms definitions and abbreviations.. .3.1 3.2 Terms and definitions Abbreviations. ..4 Requirements. ..4.1 4.2 Nominal activation conditions/sensitivity General.. ...4.2.1 Rate sensitive CO response. Individual alarm indication. ..4.2.3 4.2.2 Response to slowly developing fires... ..4.2.4 4.2.5 Directional dependence. Repeatability.. 10 104.2.6 Reproducibilit... 104.2.7 4.3 Operational reliability. Air movement.. 104.3.1 4.3.2 Connection of ancillary devices.. Monitoring of detachable detectors. .104.3.3 Manufacturer's adjustments. 104.3.4 4.3.5 Software controlled detectors. On-site adjustment of behaviour... .104.4 4.3.6 Long term stability.. Tolerance to supply voltage Variation in supply parameters. 12 124.5 Performance parameters under fire conditions- Fire sensitivity 124.6 4.6.1 Durability of nominal activation conditions/sensitivity Temperature resistance.... 124.6.2 4.6.3 Humidity resistance..... Corrosionresistance SOcorrosion(endurance) 12 134.6.4 Shock and vibration resistance. 134.6.5 4.6.6 Electrical stability-EMC immunity (operational). Resistance to chemical agents 135 Test and assessment methods 145.1 5.1.1 General. Atmospheric conditions for tests 14 145.1.2 5.1.3 Operating conditions for tests Mounting arrangements.. 145.1.4 Tolerances.5.1.5 5.1.6 Measurement of CO response value.... Provision for tests 14 155.1.7 5.2 Test schedule Nominal activation conditions/sensitivity. 15 165.2.1 Individual alarm indication... .165.2.2 5.2.3 Rate sensitive COresponse.. Response to slowly developing fires... 175.2.4 5.2.5 Repeatability.. Directional dependence. 17 185.2.6 Reproducibility. 18
5.2.7 5.3 Operational reliability. Air movement. ..19 195.3.1 5.3.2 Connection of ancillary devices Monitoring of detachable detectors... .19 .195.3.3 Manufacturer's adjustments..5.3.4 5.3.5 On-site adjustment of behaviou... Software controlled detectors. .19 195.3.6 5.4 Long term stability. Tolerance to supply voltage. 205.4.1 Variation in supply parameters. 205.5 5.5.1 Performance parameters underfire conditions. Fire sensitivity 215.6 5.6.1 Temperature resistance.. Durability of nominal activation conditions/sensitivity 23 235.6.2 Humidity resistance. 255.6.3 5.6.4 Corrosionresistance-SOcorrosion(endurance). Shock and vibration resistance. ..295.6.5 5.6.6 Resistance to chemical agents Electrical stability .35 346 Assessment and verification of constancy of performance (AvcP) .376.1 General .376.2.1 6.2 Type testing. General 376.2.2 6.2.3 Test samples testing and pliance criteria Test reports. .386.3 General Factory production control (FPC). 396.3.1 6.3.2 Requirements.. 406.3.3 6.3.4 Product specific requirements. Initial inspection of factory andFPC. 426.3.5 Procedure for modifications.. Continuous surveillance of FPC .436.3.6 6.3.7 One-off products pre-production products (e.g. prototypes) and products produced in ...4.very low quantities. .437 Classification ..4.Annex A (normative) Gas test chamber for response value and cross-sensitivity 8 Marking labelling and packagingA.1 General .46Annex B (normative) CO and smoke measuring instruments A.2 Gas test chamber specificationB.1 General .48B.2 B.3 COmeasuring instrument. Obscuration meter... 48B.4 Measuring ionization chamber (MIC).Annex C (normative) Fire test room.. C.1 General 49C.2 Fire test room specification..Annex D (informative) Establishing exposure levels of chemical agents. 52D.2 D.1 General Establishing concentration of chemical agents for test gases 1 to 9.. .52 .52D.3 D.4 Verification of test chamber leakage..... Establishing concentration of ozone... ...52 52Annex E (normative) Smouldering (pyrolysis) wood fire (TF2).. .54
