prEN 54-20

Fire detection and fire alarm systems - Part 20: Aspirating smoke detectors

This European standard specifies the requirements, test methods and performance criteria for aspirating smoke detectors for use in fire detection and fire alarm systems installed in or around buildings or other civil engineering works.
This European standard provides for the assessment and verification of constancy of performance (AVCP) of aspirating smoke detectors to this EN. Aspirating smoke detectors developed for the protection of specific risks that incorporate special characteristics (including additional features or enhanced functionality for which this standard does not define a test or assessment method) are also covered by this standard. The performance requirements for any special characteristics are beyond the scope of this standard.
NOTE   Certain types of detector contain radioactive materials. The national requirements for radiation protection differ from country to country and they are not therefore specified in this standard.

Brandmeldeanlagen - Teil 20: Ansaugrauchmelder

Systèmes de détection et d'alarme incendie - Partie 20 : Détecteurs de fumée par aspiration

Sistemi za odkrivanje in javljanje požara ter alarmiranje - 20. del: Aspiracijski dimni javljalniki

General Information

• Status: Not Published
• Publication Date: 13-Dec-2015
• Withdrawal Date: 13-Jun-2016
• ICS: 13.220.20 - Fire protection
• Technical Committee: CEN/TC 72 - Fire detection and fire alarm systems
• Drafting Committee: CEN/TC 72/WG 16 - Aspirating smoke detectors
• Current Stage: 4098 - Decision to abandon - Enquiry
• Completion Date: 06-Mar-2015
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Mandate: M/109 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on fire alarm/detection, fixed firefighting, fire and smoke control and explosion suppression products
• Ref Project: oSIST prEN 54-20:2014 - Fire detection and fire alarm systems - Part 20: Aspirating smoke detectors

Relations

• Revises: EN 54-20:2006 - Fire detection and fire alarm systems - Part 20: Aspirating smoke detectors
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2014
Sistemi za odkrivanje in javljanje požara ter alarmiranje - 20. del: Aspiracijski dimni
javljalniki
Fire detection and fire alarm systems - Part 20: Aspirating smoke detectors
Brandmeldeanlagen - Teil 20: Ansaugrauchmelder
Systèmes de détection et d'alarme incendie - Partie 20 : Détecteurs de fumée par
aspiration
Ta slovenski standard je istoveten z: prEN 54-20
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2014
ICS 13.220.20 Will supersede EN 54-20:2006
English Version
Fire detection and fire alarm systems - Part 20: Aspirating smoke
detectors
Systèmes de détection et d'alarme incendie - Partie 20 : Brandmeldeanlagen - Teil 20: Ansaugrauchmelder
Détecteurs de fumée par aspiration
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 72.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 54-20:2014 E
worldwide for CEN national Members.

Contents
Foreword . 3
1 Scope. 5
2 Normative references . 5
3 Terms, definitions and abbreviations . 6
4 Requirements . 7
5 Test and evaluation methods . 14
6 Assessment and verification of constancy of performance (AVCP) . 38
7 Classification . 46
8 Marking, labelling and packaging . 46
Annex A (informative) Apparatus for Response Value (RV) measurements . 47
Annex B (normative) Smouldering (pyrolysis) wood fire (TF2). 54
Annex C (normative) Reduced smouldering pyrolysis wood fires (TF2A and TF2B) . 57
Annex D (normative) Glowing smouldering cotton fire (TF3) . 60
Annex E (normative) Reduced glowing smouldering cotton fire (TF3A and TF3B) . 62
Annex F (normative) Flaming plastics (polyurethane) fire (TF4) . 65
Annex G (normative) Flaming liquid (n-heptane) fire (TF5) . 67
Annex H (normative) Reduced flaming liquid (n-heptane) fire (TF5A and TF5B) . 69
Annex I (normative) Fire test room and ventilation system . 72
Annex J (informative) Information concerning the requirements for the response to
slowly developing fires. 76
Annex K (informative) Apparatus for air flow monitoring test . 80
Annex L (informative) Method for fire sensitivity testing using an intermediate sampling
hole . 83
Annex M (normative) Data supplied with aspirating smoke detectors . 84
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive Construction Products Regulation 305/2011 . 85

Foreword
This document (prEN 54-20:2014) has been prepared by Technical Committee CEN/TC 72 “Fire
detection and fire alarm systems”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 54–20:2006.
This document has been prepared under a mandate given to CEN by the European Commission and
the European Free Trade Association, and supports basic requirements of EU Regulation(s).
For relationship with EU Regulation(s), see informative Annex ZA, which is an integral part of this
document.
This edition incorporates the following main changes made with respect to the previous edition of
EN 54–20:2006 as follows:
1. correction of a typographical error in the Scope,
2. a major revision of Annex ZA and new clause on AVCP in line with other standards in the
EN 54 series,
3. modification of the structure of the standard to match the CEN template,
4. introduction of the concept of design tools including requirements and a process for assessing
them,
5. clarification of the assessment of components in the sampling device,
6. addition of an informative annex to describe a method for fire sensitivity testing using an
intermediate sampling hole,
7. clarification of air flow testing of ASDs which do not operate below 0 °C and for multi-port
ASD systems.
8. example tests for assessing the response to slowly developing fires are provided as opposed
on only allowing assessment by inspection of documentation.
9. a note has been added to 5.5.1.3.4 highlighting the importance of clean air.
EN 54 “Fire detection and fire alarm systems” consists of the following parts:
- Part 1: Introduction
- Part 2: Control and indicating equipment
- Part 3: Fire alarm devices – Sounders
- Part 4: Power supply equipment
- Part 5: Heat detectors - Point detectors
- Part 7: Smoke detectors - Point detectors using scattered light, transmitted light or ionization
- Part 10: Flame detectors - Point detectors
- Part 11: Manual call points
- Part 12: Smoke detectors - Line detectors using an optical light beam
- Part 13: Compatibility assessment of system components
- Part 14: Guidelines for planning, design, installation, commissioning, use and maintenance
- Part 15: Point detectors using a combination of detected fire phenomena
- Part 16: Voice alarm control and indicating equipment
- Part 17: Short-circuit isolators
- Part 18: Input/output devices
- Part 20: Aspirating smoke detectors
- Part 21: Alarm transmission and fault warning routing equipment
- Part 22: Line-type heat detectors
- Part 23: Fire alarm devices - Visual alarms
- Part 24: Components of voice alarm systems – Loudspeakers
- Part 25: Components using radio links and system requirements
- Part 26: Point fire detectors using carbon monoxide sensors
- Part 27: Duct smoke detectors
- Part 28: Non-resettable (digital) line type heat detectors
- Part 29: Multi-sensor fire detectors - Point detectors using a combination of smoke and heat
sensors
- Part 30: Multi-sensor fire detectors - Point detectors using a combination of carbon monoxide
and heat sensors
- Part 31: Multi-sensor detector – Point detector using
- Part 32: Guidelines for the planning, design, installation, commissioning, use and maintenance
of voice alarm systems
NOTE This list includes standards that are in preparation and other standards may be added. For current
status of published standards refer to www.cen.eu.
1 Scope
This European standard specifies the requirements, test methods and performance criteria for
aspirating smoke detectors for use in fire detection and fire alarm systems installed in or around
buildings or other civil engineering works.
This European standard provides for the assessment and verification of constancy of performance
(AVCP) of aspirating smoke detectors to this EN. Aspirating smoke detectors developed for the
protection of specific risks that incorporate special characteristics (including additional features or
enhanced functionality for which this standard does not define a test or assessment method) are also
covered by this standard. The performance requirements for any special characteristics are beyond
the scope of this standard.
NOTE Certain types of detector contain radioactive materials. The national requirements for radiation
protection differ from country to country and they are not therefore specified in this standard.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 54-1:2011, Fire detection and fire alarm systems – Part 1: Introduction
EN 54-2:1997, Fire detection and fire alarm systems – Part 2: Control and indicating equipment
including EN 54-2:1997/A1:2006
EN 54-4:1997, Fire detection and fire alarm systems – Part 4: Power supply equipment including
EN 54-4:1997/A1:2002 and EN 54-4:1997/A2:2006
EN 54-7:2000, Fire detection and fire alarm systems – Part 7: Smoke detectors – Point detectors
using scattered light, transmitted light or ionization including EN 54-7:2000/A1:2002, and
EN 54-7:2000/A2:2006
EN 50130-4:2011, Alarm systems – Part 4: Electromagnetic compatibility – Product family standard:
Immunity requirements for components of fire, intruder and social alarm systems
EN 60068-1:1994, Environmental testing – Part 1: General and guidance (IEC 60068 1:1988 +
Corrigendum 1988 + A1:1992)
EN 60068-2-1:2007, Environmental testing – Part 2: tests; tests A: cold (IEC 60068-2-1:2007)
EN 60068-2-2:2007, Environmental testing – Part 2-2: tests; tests B: dry heat (IEC 60068-2-2:2007)
EN 60068-2-6:2008, Environmental testing – Part 2 6: Tests – Tests Fc: Vibration (sinusoidal)
(IEC 60068-2-6:2007)
EN 60068-2-27:2009, Environmental testing – Part 2-27: Tests – Test Ea and guidance: Shock
(IEC 60068-2-27:2008)
EN 60068-2-42:2003, Environmental testing – Part 2-42: Tests; Test Kc: Sulfur dioxide test for
contacts and connections (IEC 60068-2-42:2003)
EN 60068-2-75:1997, Environmental testing – Part 2-75: Tests – Test Eh: Hammer tests
(IEC 60068-2-75:1997)
EN 60068-2-78:2001, Environmental testing – Part 2-78: Tests; Test Cab: Damp heat, steady state
(IEC 60068-2-78:2001)
EN 61386-1:2008, Conduit systems for electrical installations – Part 1: General requirements
(IEC 61386-1:2008)
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 54-1:2011 and the following
apply.
3.1.1
aspirating smoke detector
smoke detector, in which air and aerosols are drawn through a sampling device and carried to one or
more smoke sensing elements by an integral aspirator
Note 1 to entry: Fan or pumps are examples of integral aspirators.
Note 2 to entry: Each smoke sensing element may contain more than one sensor exposed to the same
smoke sample.
3.1.2
design tool
means for determining the sensitivity class of any sampling device and detector configuration
Note 1 to entry: The design tool may be provided in a variety of forms e.g. as a software tool or a set of tables.
3.1.3
recovery
treatment of a specimen, after conditioning, so that the properties of the specimen may be stabilized
before measurement of the said property as required by this standard
3.1.4
response value
measure of the aerosol concentration in the proximity of the smoke sensing element at the moment
that the specimen generates an alarm signal
Note 1 to entry: In this document, there is a test method for response value in 5.1.5.
3.1.5
sampling device
component or series of components or dedicated device (e.g. a pipe network, dedicated duct, probe
or hood) which forms part of the ASD and transfers samples of air to the smoke sensing element(s)
Note 1 to entry: The sampling device may be supplied separately.
3.1.6
sampl
...