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Fire detection and fire alarm systems - Part 2...
1 Scope
2 Normative references
+ 3 Terms and definitions
+ 4 Requirements and assessments
5 Marking, labelling and supplied data
+ Annex A (normative) Gas test chamber for respo...
A.1 General
A.2 Gas test chamber specification
+ Annex B (normative) CO and smoke measuring ins...
B.1 General
B.2 CO measuring instruments
B.3 Obscuration meter
B.4 Measuring ionization chamber (MIC)
+ Annex C (normative) Fire test room
C.1 General
C.2 Fire test room specification
Figure C.1 — Plan view of the fire test room
Figure C.2 — Mounting position for specimens an...
+ Annex D (normative) Smouldering (pyrolysis) wo...
D.1 General
D.2 Fuel
D.3 Hotplate
D.4 Arrangement
D.5 Heating rate
D.6 End of test condition
D.7 Test validity criteria
Figure D.1 — Arrangement of the sticks on the h...
Figure D.2 — Limits for m against y, Fire TF2
Figure D.3 — Limits for m against time, t, Fire...
Figure D.4 — Limits for S against time, t, Fire...
+ Annex E (normative) Glowing smouldering cotton...
E.1 General
E.2 Fuel
E.3 Arrangement
Figure E.1 — Arrangement of the cotton wicks
E.4 Ignition
E.5 End of test condition
E.6 Test validity criteria
Figure E.2 — Limits for m against y, Fire TF3
Figure E.3 — Limits for m against time, t, Fire...
Figure E.4 — Limits for S against time, t, Fire...
+ Annex F (informative) Information concerning t...
F.1 General
F.2 Construction of the gas test chamber
F.3 Recirculating CO chamber
Figure F.1 — Example of recirculating CO chambe...
F.4 Diffusion CO chamber
Figure F.2 — Example of diffusion CO chamber
F.5 Verification time constant and of mounting ...
Figure F.3 — Test setup with calibration cap
Figure F.4 — Example response times data
Figure F.5 — Example data showing difference in...
+ Annex G (informative) Establishing exposure le...
G.1 General
G.2 Establishing concentration of chemical agen...
G.3 Verification of test chamber leakage
G.4 Establishing concentration of ozone
+ Annex H (informative) Apparatus for impact tes...
H.1 General
H.2 Apparatus construction
Figure H.1 — Impact apparatus
+ Annex I (informative) Information concerning t...
Figure I.1 — Linear compensation - limiting cas...
Figure I.2 — Stepwise compensation - limiting c...
Figure I.3 — High-rate, limited-extent compensa...
Figure I.4 — Example of nonlinear transfer char...
+ Annex J (informative) Test schedule
J.1 General
J.2 Provision for tests
J.3 Test schedule
Table J.1 — Test schedule
+ Annex K (informative) Significance of edition ...
K.1 General
K.2 Edition changes
Table K.1 — Significance of edition changes
Table K.2— Explanation of the type of changes

Fire detection and fire alarm systems - Part 26: Carbon monoxide detectors - Point detectors

Oznaka:prEN 54-26

Odbor:HZN/TO 21

Ime odbora:Protupožarna i vatrogasna oprema

Nacrt objavljen za komentiranje:2025-01-20

Rok za komentiranje:2025-02-13

Broj komentara:0

Contact email:nacrti(at)hzn.hr

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This document specifies product characteristics, test methods and performance criteria for point detectors using carbon monoxide sensing (CO fire detectors) for use in fire detection and fire alarm systems for buildings and civil engineering works.

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