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AS 7240.27:2018
[Current]Fire detection and fire alarm systems, Part 27: Point type fire detectors using a smoke sensor in combination with a carbon monoxide sensor and, optionally, one or more heat sensors (ISO 7240-27:2018, MOD)
The objective of this Standard is to specify requirements, test methods and performance criteria for multi-sensor point fire detectors that incorporate a smoke sensor, a carbon monoxide (CO) sensor and, optionally, one or more heat sensors, for use in fire detection and alarm systems installed in buildings (refer to AS ISO 7240.1).
Published: 20/12/2018
Pages: 63
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 General requirements
4.1 Compliance
4.2 Response threshold value of detectors using scattered or transmitted light
4.3 Individual alarm indication
4.4 Connection of ancillary devices
4.5 Monitoring of detachable detectors
4.6 Manufacturer's adjustments
4.7 On-site adjustment of response behaviour
4.8 Protection against the ingress of foreign bodies
4.9 Rate-sensitive CO response behaviour
4.10 Smoke response to slowly developing fires
4.11 Requirements for software controlled detectors
4.11.1 General
4.11.2 Software design
4.11.3 Storage of programs and data
5 Tests
5.1 General
5.1.1 Atmospheric conditions for tests
5.1.2 Operating conditions for tests
5.1.3 Mounting arrangements
5.1.4 Tolerances
5.1.5 Measurement of smoke response threshold value
5.1.6 Measurement of CO response threshold value
5.1.7 Measurement of heat sensor response value
5.1.8 Provision for tests
5.1.9 Test schedule
5.1.10 Test report
5.2 Repeatability of smoke response
5.2.1 Object of the test
5.2.2 Test procedure
5.2.3 Requirements
5.3 Repeatability of CO response
5.3.1 Object of the test
5.3.2 Test procedure
5.3.3 Requirements
5.4 Directional dependence of smoke response
5.4.1 Object of the test
5.4.2 Test procedure
5.4.3 Requirements
5.5 Directional dependence of CO response
5.5.1 Object of the test
5.5.2 Test procedure
5.5.3 Requirements
5.6 Directional dependence of heat response (optional function)
5.6.1 Object of the test
5.6.2 Test procedure
5.6.3 Requirements
5.7 Lower limit of heat response (optional function)
5.7.1 Object of the test
5.7.2 Test procedure
5.7.3 Requirements
5.8 Reproducibility of smoke response
5.8.1 Object of the test
5.8.2 Test procedure
5.8.3 Requirements
5.9 Reproducibility of CO response
5.9.1 Object of the test
5.9.2 Test procedure
5.9.3 Requirements
5.10 Reproducibility of heat response (optional function)
5.10.1 Object of the test
5.10.2 Test procedure
5.10.3 Requirements
5.11 Exposure to chemical agents at environmental concentrations
5.11.1 Object of the test
5.11.2 Test procedure
5.11.3 Requirements
5.12 Long-term stability of CO response
5.12.1 Object of the test
5.12.2 Test procedure
5.12.3 Requirements
5.13 Saturation
5.13.1 Object of the test
5.13.2 Test procedure
5.13.3 Requirements
5.14 Variation in supply parameters
5.14.1 Object of the test
5.14.2 Test procedure
5.14.3 Requirements
5.15 Air movement
5.15.1 Object of the test
5.15.2 Test procedure
5.15.3 Requirements
5.16 Dazzling
5.16.1 Object of the test
5.16.2 Test procedure
5.16.3 Requirements
5.17 Dry heat (operational)
5.17.1 Object of the test
5.17.2 Test procedure
5.17.2.1 Measurements during conditioning
5.17.2.2 Final measurements
5.17.3 Requirements
5.18 Dry heat (endurance)
5.18.1 Object of the test
5.18.2 Test procedure
5.18.2.1 Final measurements
5.18.3 Requirements
5.19 Cold (operational), smoke
5.19.1 Object of the test
5.19.2 Test procedure
5.19.2.1 Measurements during conditioning
5.19.2.2 Final measurements
5.19.3 Requirements
5.20 Cold (operational), CO
5.20.1 Object of the test
5.20.2 Test procedure
5.20.2.1 Measurements during conditioning
5.20.2.2 Final measurements
5.20.3 Requirements
5.21 Damp heat, cyclic (operational)
5.21.1 Object of the test
5.21.2 Test procedure
5.21.2.1 Measurements during conditioning
5.21.2.2 Final measurements
5.21.2.3 Requirements
5.22 Damp heat, steady-state (operational)
5.22.1 Object of the test
5.22.2 Test procedure
5.22.2.1 Measurements during conditioning
5.22.2.2 Final measurements
5.22.3 Requirements
5.23 Damp heat, steady-state (endurance)
5.23.1 Object of the test
5.23.2 Test procedure
5.23.2.1 Final measurements
5.23.3 Requirements
5.24 Low humidity, steady-state (endurance)
5.24.1 Object of the test
5.24.2 Test procedure
5.24.2.1 Final measurements
5.24.3 Requirements
5.25 Sulfur dioxide SO2 corrosion (endurance)
5.25.1 Object of the test
5.25.2 Test procedure
5.25.2.1 Final measurements
5.25.3 Requirements
5.26 Shock (operational)
5.26.1 Object of the test
5.26.2 Test procedure
5.26.2.1 Measurements during conditioning
5.26.2.2 Final measurements
5.26.3 Requirements
5.27 Impact (operational)
5.27.1 Object of the test
5.27.1.1 Measurements during conditioning
5.27.1.2 Final measurements
5.27.2 Requirements
5.28 Vibration, sinusoidal (operational)
5.28.1 Object of the test
5.28.2 Test procedure
5.28.2.1 Measurements during conditioning
5.28.2.2 Final measurements
5.28.3 Requirements
5.29 Vibration, sinusoidal (endurance)
5.29.1 Object of the test
5.29.2 Test procedure
5.29.2.1 Final measurements
5.29.3 Requirements
5.30 Electromagnetic compatibility (EMC) immunity tests (operational)
5.30.1 Object of the test
5.30.1.1
5.30.1.2
5.30.2 Requirements
5.31 Fire sensitivity
5.31.1 Object of the test
5.31.2 Test procedure
5.31.2.1 Initial conditions
5.31.2.2 Measurement during conditioning
5.31.3 Requirements
6 Test report
7 Marking
8 Data
8.1 Hardware documentation
8.1.1
8.1.2
8.1.3
8.2 Software documentation
8.2.1
8.2.2
Annex A
A.1
A.2
A.3
A.4
A.5
A.6
A.7
Annex B
B.1
B.2
B.3
B.4
B.5
B.6
B.7
Annex C
C.1
C.2
C.3
C.4
Annex D
D.1
D.2
D.3
D.4
D.5
D.6
D.7
Annex E
Annex F
F.1 Fuel
F.2 Hotplate
F.3 Arrangement
F.4 Heating rate
F.5 End-of-test condition
F.6 Test validity criteria
Annex G
G.1 Fuel
G.2 Arrangement
G.3 Ignition
G.4 End-of-test condition
G.5 Test validity criteria
Annex H
H.1 Fuel
H.2 Conditioning
H.3 Arrangement
H.4 Ignition
H.5 Method of ignition
H.6 End-of-test condition
H.7 Test validity criteria
Annex I
I.1 Fuel
I.2 Arrangement
I.3 Ignition
I.4 End-of-test condition
I.5 Test validity criteria
Annex J
J.1 Fuel
J.2 Arrangement
J.3 Volume
J.4 Ignition
J.5 End-of-test condition
J.6 Test validity criteria
Annex K
Appendix ZZ
ZZ.1 Scope
ZZ.2 Variations
Bibliography
Cited references in this standard
[Current]
Environmental testing — Part 2-30: Tests — Test Db: Damp heat, cyclic (12 h + 12 h cycle)
[Current]
Alarm systems — Part 2: Electromagnetic compatibility — Immunity requirements for components of fire and security alarm systems
[Current]
Environmental testing — Part 2-78: Tests — Test Cab: Damp heat, steady state
[Current]
Environmental testing — Part 2-42: Tests — Test Kc: Sulphur dioxide test for contacts and connections
[Current]
Environmental testing — Part 2-6: Tests — Test Fc: Vibration (sinusoidal)
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