SIST EN 54-24:2008

Fire detection and fire alarm systems - Part 24: Components of voice alarm systems - Loudspeakers

This European Standard specifies requirements, test methods and performance criteria for loudspeakers intended to broadcast a warning of fire between a fire detection and fire alarm system and the occupants of a building. This European Standard specifies loudspeakers for two types of application environment: type A, generally for indoor use and type B, generally for outdoor use. This European Standard does not cover loudspeakers for special applications, for example loudspeaker for use in hazardous applications, if such applications require additional or other requirements or tests than those given in this European Standard. This European Standard is not intended to cover addressable loudspeakers, loudspeakers with active components. Voice alarm sounders are covered in EN 54-3:2001.

Brandmeldeanlagen - Teil 24: Komponenten für Sprachalarmierungssysteme - Lautsprecher

Diese Europäische Norm legt die Anforderungen, Prüfverfahren und Leistungskriterien für Lautsprecher fest, die für die Übertragung von Brandfalldurchsagen als Bindeglied zwischen einer Brandmeldeanlage und den Benutzern eines Gebäudes vorgesehen sind.
In dieser Europäische Norm werden Festlegungen für zwei Arten der Einsatzumgebung von Lautsprechern getroffen: für Lautsprecher für Typ A, im Allgemeinen für den Innenbereich anzuwenden und Typ B, im Allgemeinen für den Außenbereich anzuwenden.
Diese Europäische Norm behandelt keine Lautsprecher für Sonderanwendungen, z. B. Lautsprecher zum Einsatz in explosionsgefährdeten Bereichen, sofern diese Anwendungen zusätzliche oder weitere Anforderungen oder Prüfungen erfordern, als die in dieser Norm enthaltenen.
Diese Europäische Norm gilt nicht für adressierbare Lautsprecher und Lautsprecher mit aktiven Elementen.
Akustische Signalgeber werden in EN 54 3:2001 behandelt.

Systemes de détection et d'alarme incendie - Composants des systemes d'alarme vocale - Partie 24 : Haut-parleurs

La présente partie de la Norme européenne spécifie les exigences, les méthodes d’essai et les criteres de performance pour les haut-parleurs destinés a diffuser un avertissement d’incendie, depuis le systeme de détection et d’alarme incendie vers les occupants d’un bâtiment.
La présente partie de la norme définit les exigences concernant les haut-parleurs pour les deux types d’environnement d’utilisation suivants : le type A pour l’utilisation en intérieur et le type B pour l’utilisation en extérieur.
La présente partie de la norme n’est pas destinée a traiter des haut-parleurs dotés de composants actifs ou des dispositifs sonores d’alarme vocale.

Sistemi za odkrivanje in javljanje požara ter alarmiranje - 24. del: Sestavni deli zvočnih sistemov za javljanje požara - Zvočniki

General Information

• Status: Published
• Publication Date: 27-May-2008
• ICS: 13.220.20 - Fire protection
• ICS: 13.320 - Alarm and warning systems
• Technical Committee: POZ - Požarna varnost
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 12-May-2008
• Due Date: 17-Jul-2008
• Completion Date: 28-May-2008
• 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
• Directive: 89/106/EEC - Construction products
• Directive: TP221 - Pravilnik o pogojih in merilih za izdajatelja pomnilniških kartic za zapisovalno opremo v cestnih prevozih ter načinu oblikovanja in določanja cene za izdajo kartice
• 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: EN 54-24:2008 - Fire detection and fire alarm systems - Part 24: Components of voice alarm systems - Loudspeakers

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 54-24:2008
01-julij-2008
6LVWHPL]DRGNULYDQMHLQMDYOMDQMHSRåDUDWHUDODUPLUDQMHGHO6HVWDYQLGHOL
]YRþQLKVLVWHPRY]DMDYOMDQMHSRåDUD=YRþQLNL
Fire detection and fire alarm systems - Part 24: Components of voice alarm systems -
Loudspeakers
Brandmeldeanlagen - Teil 24: Komponenten für Sprachalarmierungssysteme -
Lautsprecher
Systemes de détection et d'alarme incendie - Composants des systemes d'alarme
vocale - Partie 24 : Haut-parleurs
Ta slovenski standard je istoveten z: EN 54-24:2008
ICS:
13.220.20 3RåDUQD]DãþLWD Fire protection
13.320 Alarmni in opozorilni sistemi Alarm and warning systems
SIST EN 54-24:2008 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 54-24:2008

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SIST EN 54-24:2008
EUROPEAN STANDARD
EN 54-24
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2008
ICS 13.310

English Version
Fire detection and fire alarm systems - Part 24: Components of
voice alarm systems - Loudspeakers
Systèmes de détection et d'alarme incendie - Composants Brandmeldeanlagen - Teil 24: Komponenten für
des systèmes d'alarme vocale - Partie 24 : Haut-parleurs Sprachalarmierungssysteme - Lautsprecher
This European Standard was approved by CEN on 23 February 2008.
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. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 54-24:2008: E
worldwide for CEN national Members.

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SIST EN 54-24:2008
EN 54-24:2008 (E)
Contents Page
Foreword.4
Introduction .6
1 Scope .7
2 Normative references .7
3 Terms, definitions and abbreviations.8
3.1 Terms and definitions .8
3.2 Abbreviations.11
4 Requirements.11
4.1 Compliance.11
4.2 Frequency response limits .11
4.3 Durability .12
4.4 Construction.12
4.4.1 Provision for external conductors .12
4.4.2 Materials .12
4.4.3 Enclosure protection.12
4.4.4 Access .12
4.5 Marking and data .12
4.5.1 Marking .12
4.5.2 Information in the product data sheet .13
5 Tests.14
5.1 General.14
5.1.1 Atmospheric conditions for tests .14
5.1.2 Operating conditions for tests .14
5.1.3 Mounting arrangements.14
5.1.4 Tolerances .14
5.1.5 Frequency response measurement and sensitivity calculation .14
5.1.6 Frequency response measurement and sensitivity calculation for loudspeakers requiring
dedicated system equalization.16
5.1.7 Provision for tests .16
5.1.8 Test schedule.16
5.2 Reproducibility.18
5.2.1 Object of the test.18
5.2.2 Test procedure.18
5.2.3 Test requirements.18
5.3 Rated impedance .18
5.3.1 Object of the test.18
5.3.2 Test procedure.18
5.3.3 Test requirements.19
5.4 Horizontal and vertical coverage angles.19
5.4.1 Object of the test.19
5.4.2 Test procedure.19
5.4.3 Test requirement.20
5.5 Maximum sound pressure level .20
5.5.1 Object of the test.20
5.5.2 Test procedure.20
5.5.3 Test requirements.20
5.6 Rated noise power (durability) .21
5.6.1 Object of the test.21
5.6.2 Test procedure.21
2

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SIST EN 54-24:2008
EN 54-24:2008 (E)
5.6.3 Test requirement: .21
5.7 Dry heat (operational) .21
5.7.1 Object of the test .21
5.7.2 Test procedure.22
5.7.3 Test requirements .22
5.8 Dry heat (endurance).22
5.8.1 Object of the test .22
5.8.2 Test procedure.23
5.8.3 Test requirements .23
5.9 Cold (operational).23
5.9.1 Object of the test .23
5.9.2 Test procedure.24
5.9.3 Test requirements .24
5.10 Damp heat, cyclic (operational) .25
5.10.1 Object of the test .25
5.10.2 Test procedure.25
5.10.3 Test requirements .25
5.11 Damp heat, steady state (endurance).26
5.11.1 Object of the test .26
5.11.2 Test procedure.26
5.11.3 Test requirements .26
5.12 Damp heat, cyclic (endurance) .27
5.12.1 Object of the test .27
5.12.2 Test procedure.27
5.12.3 Test requirements .27
5.13 Sulfur dioxide (SO ) corrosion (endurance) .28
2
5.13.1 Object of the test .28
5.13.2 Test procedure.28
5.13.3 Test requirements .28
5.14 Shock (operational) .29
5.14.1 Object of the test .29
5.14.2 Test procedure.29
5.14.3 Test requirements .29
5.15 Impact (operational) .30
5.15.1 Object of the test .30
5.15.2 Test procedure.30
5.15.3 Test requirements .30
5.16 Vibration, sinusoidal (operational) .31
5.16.1 Object of the test .31
5.16.2 Test procedure.31
5.16.3 Test requirements .32
5.17 Vibration, sinusoidal (endurance) .32
5.17.1 Object of the test .32
5.17.2 Test procedure.32
5.17.3 Test requirements .33
5.18 Enclosure protection.33
5.18.1 Object of the tests .33
5.18.2 Enclosure of the loudspeaker .33
5.18.3 Test procedures.33
5.18.4 Test requirements .34
Annex A (normative) Acoustical measurements.35
Annex B (normative) Measuring rated noise power (durability).41
Annex C (informative) Loudspeaker references.48
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
Construction Products Directive (89/106/EEC) .50

3

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SIST EN 54-24:2008
EN 54-24:2008 (E)
Foreword
This document (EN 54-24:2008) has been prepared by Technical Committee CEN/TC 72 “Fire detection and
fire alarm systems”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by October 2008, and conflicting national standards shall be withdrawn at
the latest by April 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
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 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 routine equipment
4

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SIST EN 54-24:2008
EN 54-24:2008 (E)
 Part 22: Resettable 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
1)
 Part 26: Point fire detectors using carbon monoxide sensors
1)
 Part 27: Duct smoke detectors
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.


1) Under preparation.
5

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SIST EN 54-24:2008
EN 54-24:2008 (E)
Introduction
The purpose of a voice alarm loudspeaker as a component of a voice alarm system is to provide intelligible
warning to person(s) within, or in the vicinity of, a building in which a fire emergency has occurred and to
enable such person(s) to take appropriate measures against a pre-determined evacuation plan.
The primary reason for using a voice alarm system instead of the coded warnings given by sounders is to
reduce the time taken for those at risk to recognize that an emergency exists, and to give clear instructions on
what to do next. This means that voice alarm loudspeakers need to achieve a minimum acoustical
performance, as well as constructional and environmental requirements, to be suitable for use in fire detection
and fire alarm systems.
This standard recognizes that the exact nature of the acoustical requirements for voice alarm loudspeakers
will vary according to the nature of the space into which there are installed. It therefore specifies the minimum
requirements that apply to voice alarm loudspeakers and a common method for testing their operational
performance against parameters specified by the manufacturers.
This European Standard gives common requirements for the construction and robustness of voice alarm
loudspeakers as well as their performance under climatic and mechanical conditions which are likely to occur
in the service environment. As the types of loudspeaker considered in this European Standard are passive
electromechanical devices not involving sensitive electronic circuits, electromagnetic compatibility (EMC) tests
have not been included. The loudspeakers have been classified in either an indoor or an outdoor application
environment category.
This European Standard requires that manufacturers specify certain characteristics in a consistent manner so
that designers can make objective decisions about which loudspeaker to use in specific applications.
6

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SIST EN 54-24:2008
EN 54-24:2008 (E)
1 Scope
This European Standard specifies requirements, test methods and performance criteria for loudspeakers
intended to broadcast a warning of fire between a fire detection and fire alarm system and the occupants of a
building.
This European Standard specifies loudspeakers for two types of application environment: type A, generally for
indoor use and type B, generally for outdoor use.
This European Standard does not cover loudspeakers for special applications, for example loudspeaker for
use in hazardous applications, if such applications require additional or other requirements or tests than those
given in this European Standard.
This European Standard is not intended to cover addressable loudspeakers, loudspeakers with active
components.
Voice alarm sounders are covered in EN 54-3:2001.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 54-1:1996, Fire detection and fire alarm systems — Part 1: Introduction
EN 54-3:2001, Fire detection and fire alarm systems — Part 3: Fire alarm devices — Sounders
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 2-1: Tests — Test A: Cold (IEC 60068-2-1:2007)
EN 60068-2-2:1993, Basic environmental testing procedures — Part 2-2: Tests — Tests B — Dry heat
(IEC 60068-2-2:1974 + IEC 60068-2-2 A:1976)
EN 60068-2-2:1993/A1:1993, Basic environmental testing procedures — Part 2-2: Tests — Tests B — Dry
heat – (IEC 60068-2-2:1974/A1:1993)
EN 60068-2-2:1993/A2:1994, Basic environmental testing procedures — Part 2-2: Tests — Tests B — Dry
heat – (IEC 60068-2-2:1974/A2:1994)
EN 60068-2-6:1995, Environmental testing — Part 2-6: Tests — Test Fc: Vibration (sinusoidal)
(IEC 60068-2-6:1995 + Corrigendum 1995)
EN 60068-2-27:1993, Basic environmental testing procedures — Part 2: Tests — Test Ea and guidance:
Shock (IEC 60068-2-27:1987)
EN 60068-2-30:2005, Environmental testing — Part 2-30: Tests — Test Db: Damp heat, cyclic (12 h + 12 h
cycle) (IEC 60068-2-30:2005)
EN 60068-2-42:2003, Environmental testing — Part 2-42: Tests — Test Kc: Sulphur 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 (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)
7

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SIST EN 54-24:2008
EN 54-24:2008 (E)
EN 60529:1991, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)
EN 60529:1991/A1:2000, Degrees of protection provided by enclosures (IP code) — Amendment A1
(IEC 60529:1989/A1:1999)
EN 60695-11-10:1999, Fire hazard testing — Part 11-10: Test flames — 50 W horizontal and vertical flame
test methods (IEC 60695-11-10:1999)
EN 60695-11-10:1999/A1:2003, Fire hazard testing – Part 11-10: Test flames — 50 W horizontal and vertical
flame test methods – Amendment A1 (IEC 60695- 11-10:1999/A1:2003
EN 60695-11-20:1999, Fire hazard testing — Part 11-20: Test flames — 500 W flame test methods
(IEC 60695-11-20:1999)
EN 60695-11-20:1999/A1:2003, Fire hazard testing — Part 11-20: Test flames — 500 W flame test methods)
— Amendment A1 (IEC 60695-11- 20:1999/A1:2003)
EN 61260:1995, Electroacoustics — Octave-band and fractional-octave-band filters (IEC 61260:1995)
EN 61672-1:2003, Electroacoustics — Sound level meters — Part 1: Specifications (IEC 61672-1:2002)
EN ISO 9001:2000, Quality management systems — Requirements (ISO 9001:2000)
IEC 60268-1:1985, Sound system equipment — Part 1: General
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 54-1:1996 and the following apply.
3.1.1
1/3 octave
frequency band as defined in EN 61260
3.1.2
coverage angle
smallest angle between two directions on either side of the reference axis at which the sound pressure level is
6 dB less than the sound pressure level on the reference axis
NOTE This angle is measured in the vertical and horizontal planes.
3.1.3
free-field condition
acoustical environment in which the sound pressure decreases with the distance (r) from a point source
according to a 1/r law, with an accuracy of ± 10 %, in the region that will be occupied by the sound field
between the loudspeaker system and the microphone during the measurements
EXAMPLE An anechoic room, a quiet outdoor space.
3.1.4
frequency response
sound pressure level at a distance of 4 m from the reference point on the reference axis, produced at 1/3
octave frequency bands, from 100 Hz to 10 kHz (centre frequencies)
NOTE This is also referred to as magnitude or amplitude response.
8

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SIST EN 54-24:2008
EN 54-24:2008 (E)
3.1.5
ground plane measurement
measurement under half-space free-field conditions used to simulate a free-field condition in which the
loudspeaker is mounted above an acoustically totally reflective boundary surface and aimed so that its
reference axis is points towards a measurement microphone that is placed directly on the boundary surface
NOTE In order to achieve measurement results that are comparable with a free-field condition, ground-plane
measurements need to be corrected by -6 dB at all frequencies.
3.1.6
half-space free-field condition
acoustical environment that is confined by a plane of sufficient size and in which the free-field exists in a
hemisphere, so that the sound pressure from a point source mounted in the surface of that plane decreases in
the manner defined in 3.1.3
EXAMPLE A half-space anechoic room.
3.1.7
horizontal plane
virtual plane of the loudspeaker containing the reference axis, as specified by the manufacturer
NOTE There may be several hor
...