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SN EN 54-20 : 2006 CORR 2009
Current
The latest, up-to-date edition.
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FIRE DETECTION AND FIRE ALARM SYSTEMS - PART 20: ASPIRATING SMOKE DETECTORS
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Requirements
5.1 Compliance
5.2 Individual visual alarm indication
5.3 Connection of ancillary devices
5.4 Manufacturer's adjustments
5.5 On site adjustment of response behaviour
5.6 Response to slowly developing fires
5.7 Mechanical strength of the pipework
5.8 Hardware components and additional sensing elements
in the sampling device
5.9 Airflow monitoring
5.10 Power supply
5.11 Data
5.12 Additional requirements for software controlled
detectors
6 Tests
6.1 General
6.2 Repeatability
6.3 Reproducibility
6.4 Variation in supply parameters
6.5 Dry heat (operational)
6.6 Cold (operational)
6.7 Damp heat, steady state (operational)
6.8 Damp heat, steady state (endurance)
6.9 Sulfur dioxide (SO[2]) corrosion (endurance)
6.10 Shock (operational)
6.11 Impact (operational)
6.12 Vibration, sinusoidal (operational)
6.13 Vibration, sinusoidal (endurance)
6.14 Electromagnetic compatibility (EMC) immunity tests
6.15 Fire sensitivity
7 Classification and designation
8 Marking
Annex A (informative) - Apparatus for Response Threshold
Value (RTV) measurements
Annex B (normative) - Smoldering (pyrolysis) wood fire
(TF2)
B.1 Fuel
B.2 Hotplate
B.3 Arrangement
B.4 Heating rate
B.5 End of test condition
B.6 Test validity criteria
Annex C (normative) - Reduced smoldering pyrolysis wood
fires (TF2A and TF2B)
C.1 Fuel
C.2 Hotplate
C.3 Arrangement
C.4 Heating rate
C.5 End of test condition
C.6 Test validity criteria
Annex D (normative) - Glowing smouldering cotton fire
(TF3)
D.1 Fuel
D.2 Arrangement
D.3 Ignition
D.4 End of test condition
D.5 Test validity criteria
Annex E (normative) - Reduced glowing smoldering cotton
fire (TF3A and TF3B)
E.1 Fuel
E.2 Arrangement
E.3 Ignition
E.4 End of test condition
E.5 Test validity criteria
Annex F (normative) - Flaming plastics (polyurethane)
fire (TF4)
F.1 Fuel
F.2 Arrangement
F.3 Ignition
F.4 End of test condition
F.5 Test validity criteria
Annex G (normative) - Flaming liquid (n-heptanes) fire
(TF5)
G.1 Fuel
G.2 Arrangement
G.3 Ignition
G.4 End of test condition
G.5 Test validity criteria
Annex H (normative) - Reduced flaming liquid
(n-heptanes) fire (TF5A and TF5B)
H.1 Fuel
H.2 Arrangement
H.3 Ignition
H.4 End of test condition
H.5 Test validity criteria
Annex I (normative) - Fire test room and ventilation
system
I.1 Fire test room
I.2 Ventilation system
Annex J (informative) - Information concerning the
requirements for the response to
slowly developing fires
Annex K (informative) - Apparatus for air flow monitoring
test
K.1 General
K.2 Airflow measuring with worst-case sampling
device
K.3 Airflow monitoring test with test pipe network
Annex ZA (informative) - Clauses of this European Standard
addressing the provisions of the
EU Construction Products Directive
ZA.1 Scope and relevant clauses
ZA.2 Procedures for the attestation of conformity of
aspirating smoke detectors covered by this
standard
ZA.3 CE Marking and labelling and accompanying
documentation
ZA.4 EC certificate and declaration of conformity
Bibliography
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