1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationFire detection and fire alarm systems for buildings Part 8: Code of practice for the design, installation, commissioning and maintenance of voice alarm systemsBS 5839-8:2013BS 58
2、39-8:2013 BRITISH STANDARDPublishing and copyright informationThe BSI copyright notice displayed in this document indicates when the document was last issued. The British Standards Institution 2013 Published by BSI Standards Limited 2013ISBN 978 0 580 77925 1ICS 13.220.20; 13.320The following BSI re
3、ferences relate to the work on this document: Committee reference FSH/12 Draft for comment 12/30258718 DCPublication historyFirst published February 1998Second edition, May 2008Third (current) edition, March 2013Amendments issued since publicationDate Text affected The British Standards Institution
4、2013 iBS 5839-8:2013BRITISH STANDARDContentsForeword iiiSection 1: General 11 Scope 12 Normative references 13 Terms and definitions 24 Need for a VAS 55 Types of systems 56 Exchange of information and responsibilities 77 Variations from the recommendations of this standard 8Section 2: Design consid
5、erations 108 Relationship between system type and evacuation plan 109 Interface between the fire detection and fire alarm system and the VAS 1310 Systems in explosive gas or dust atmospheres 1511 System components 1512 Monitoring, integrity and reliability of circuits external to the VACIE 1513 Loud
6、speaker zones 1814 Loudspeakers 1815 Voice sounders 2016 Power amplifiers 2117 Ambient noise sensing and compensation controller (ANS) 2218 Emergency microphones 2219 Emergency message generators 2520 Emergency messages 2521 Audibility of non-speech broadcast 2822 Intelligibility of speech messages
7、2923 Priorities 3224 Voice alarm control and indicating equipment (VACIE) 3225 Networked systems 3426 Power supplies 3627 Cables, wiring and other interconnections 3928 Radio-linked systems 4229 Climatic and environmental conditions 4430 Radio and electrical interference 4431 Electrical safety 45Sec
8、tion 3: Installation 4832 Responsibility of installer 4833 Installation practices and workmanship 5034 Inspection and testing of wiring 51Section 4: Commissioning and handover 5335 Commissioning 5336 Documentation 5437 Certification 5538 Acceptance 5639 Verification 57Section 5: Maintenance 5840 Rou
9、tine testing 5841 Inspection and servicing 5942 Non-routine attention 61Section 6: User responsibilities 6543 Premises management 6544 Logbook 65BS 5839-8:2013ii The British Standards Institution 2013BRITISH STANDARDAnnexesAnnex A (informative) Typical ambient noise levels and their effect on system
10、 design 67Annex B (informative) Voice alarm control and indicating equipment 69Annex C (normative) Standby battery calculations 71Annex D (informative) Model certificates 75Bibliography 82List of figuresFigure 1 Example of pictogram for a standard microphone to mouth distance 23Figure 2 Example of p
11、ictogram for a close-talking microphone to mouth distance 24Figure 3 Evacuate broadcast sequence 26Figure 4 Alert broadcast sequence 27Figure 5 Example of 70/100 V line loudspeaker circuit 47Figure 6 Example of network wiring 47List of tablesTable A.1 Example of design criteria for public spaces in
12、a hotel 68Table A.2 Example of typical real life noise levels 68Summary of pagesThis document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 82, an inside back cover and a back cover. The British Standards Institution 2013 iiiBS 5839-8:2013BRITISH STANDARDForewordPublishin
13、g informationThis Part of BS 5839 is published by BSI Standards Limited, under licence from The British Standards Institution, and came into effect on 31 March 2013. It was prepared by Subcommittee FSH/12/5, Fire alarm devices, voice alarm evacuation subsystems and emergency voice communications, un
14、der the authority of Technical Committee FSH/12, Fire detection and fire alarm systems. A list of organizations represented on this committee can be obtained on request to its secretary.SupersessionThis part of BS 5839 supersedes BS 5839-8:2008, which is withdrawn.Information about this documentThis
15、 new edition introduces a number of technical changes. It does not constitute a full revision of the documents, which will be undertaken in due course. The principal changes introduced by this new edition are as follows.a) A new subclause 14.2 has been added to give recommendations on the placement
16、of loudspeakers.b) New recommendations for audibility have been added to subclause 22.1.c) The text on cables and wiring (Clause 27) has been updated.d) The text on radio-linked systems (Clause 28) has been modified to remove conflicts with BS EN 54-25:2008.e) The commentary to Clause 40 has been mo
17、dified to include more guidance on system testing and a new item b) has been added to subclause 40.1.f) Annex C has been modified to avoid the assumption of an amplifier efficiency of 50% (class AB).g) The term “responsible person” has been removed and replaced with references to “premises managemen
18、t” to avoid confusion with the term defined in legislation.Where appropriate, this standard refers to BS EN 54 product standards, particularly those that apply to components of voice alarm systems.Use of this documentAs a code of practice, this standard takes the form of guidance and recommendations
19、. It should not be quoted as if it were a specification and particular care should be taken to ensure that claims of compliance are not misleading.Any user claiming compliance with this standard is expected to be able to justify any course of action that deviates from its recommendations.It has been
20、 assumed in the preparation of this British Standard that the execution of its provisions will be entrusted to appropriately qualified and experienced people, for whose use it has been produced.Presentational conventionsThe provisions in this standard are presented in roman (i.e. upright) type. Its
21、recommendations are expressed in sentences in which the principal auxiliary verb is “should”.Commentary, explanation and general informative material is presented in smaller italic type, and does not constitute a normative element.BS 5839-8:2013iv The British Standards Institution 2013BRITISH STANDA
22、RDThe word “should” is used to express recommendations of this standard. The word “may” is used in the text to express permissibility, e.g. as an alternative to the primary recommendation of the Clause. The word “can” is used to express possibility, e.g. a consequence of an action or an event.Notes
23、and commentaries are provided throughout the text of this standard. Notes give references and additional information that are important but do not form part of the recommendations. Commentaries give background information.Contractual and legal considerationsThis publication does not purport to inclu
24、de all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations. The British Standards Institution 2013 1BS 5839-8:2013BRITISH STANDARDSection 1: General1 ScopeThis standard gives recomm
25、endations for the design, installation, commissioning and maintenance of voice alarm systems which automatically broadcast speech or warning tones, in response to signals from their associated fire detection and fire alarm systems. It also covers systems that include a manual facility for the transm
26、ission of live voice messages as well as automatically generated messages for emergency purposes.NOTE 1 The fire detection and fire alarm systems themselves are covered by BS 5839-1.Systems that depend solely upon manual intervention are not covered by this standard. However, this standard can be us
27、ed for guidance in the design, installation, commissioning and maintenance of such systems.NOTE 2 This standard applies to extensions and alterations to existing systems, at least in respect of the design, installation, commissioning, maintenance, and the certification of the new work, albeit that t
28、he extended or altered system might not, overall, conform to this standard.NOTE 3 BS 7827 provides further recommendations in respect of sports venues.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applica
29、tion. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.BS 4678-4, Cable trunking Part 4: Specification for cable trunking made from insulating materialBS 5839-1:2013, Fire detection and fire
30、 alarm systems for buildings Part 1: Code of practice for design, installation, commissioning and maintenance of systems in non-domestic premisesBS 6651:1999+A1:2005, Code of practice for protection of structures against lightningBS 7629-1, Electric cables Specification for 300/500 V fire resistant
31、screened cables having low emission of smoke and corrosive gases when affected by fire Part 1: Multicore and multipair cablesBS 7671, Requirements for electrical installations IET Wiring Regulations BS 7827, Code of practice for designing, specifying, maintaining and operating emergency sound system
32、s at sports venuesBS 7846, Electrical cables 600/1 000 V armoured fire-resistant cables having thermosetting insulation and low emission of smoke and corrosive gases when affected by fireBS 8434-2, Methods of test for assessment of the fire integrity of electric cables Part 2: Test for unprotected s
33、mall cables for use in emergency circuits BS EN 50200 with a 930 C flame and with water sprayBS 9999, Code of practice for fire safety in the design, management and use of buildingsBS EN 54-3, Fire detection and fire alarm systems Part 3: Fire alarm devices SoundersBS EN 54-4, Fire detection and fir
34、e alarm systems Part 4: Power supply equipmentBS 5839-8:20132 The British Standards Institution 2013BRITISH STANDARDBS EN 54-16:2008, Fire detection and fire alarm systems Part 16: Voice alarm control and indicating equipmentBS EN 54-23, Fire detection and fire alarm systems Fire alarm devices Part
35、23: Visual alarm devices BS EN 54-24, Fire detection and fire alarm systems Part 24: Components of voice alarm systems LoudspeakersBS EN 54-25, Fire detection and fire alarm systems Part 25: Components using radio links and system requirementsBS EN 50086 (relevant parts), Specification for conduit s
36、ystems for cable managementBS EN 50200:2006, Method of test for resistance to fire of unprotected small cables for use in emergency circuitsBS EN 50289-4-16, Communication cables Specifications for test methods Part 4-16: Environmental test methods Circuit integrity under fire conditionsBS EN 60079-
37、14, Electrical apparatus for explosive gas atmospheres Part 14: Electrical installations in hazardous areas (other than mines)BS EN 60268-16, Sound system equipment Part 16: Objective rating of speech intelligibility by speech transmission indexBS EN 60702-1, IEC 60702-1, Mineral insulated cables an
38、d their terminations with a rated voltage not exceeding 750 V Part 1: CablesBS EN 60702-2, IEC 60702-2, Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V Part 2: TerminationsBS EN 61241-14, Electrical apparatus for use in the presence of combustible dust Part 1
39、4: Selection and installationBS EN 61241-17, Electrical apparatus for use in the presence of combustible dust Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines)3 Terms and definitionsFor the purposes of this standard, the terms and definitions given
40、 in BS 5839-1 and the following apply.3.1 acoustically distinguishable area (a.d.a.)subdivision of an emergency loudspeaker zone characterized by an individual reverberation time and ambient noise levelNOTE This may be an enclosed or otherwise physically defined space.3.2 ambient noiseambient sound
41、pressure, expressed in dB, normally present in an a.d.a., measured using the equivalent sound pressure level LAeq,Tor LA10,T, depending on the nature of the noise3.3 area of coveragearea, inside and/or outside a building, where the voice alarm system meets the recommendations of this standard3.4 att
42、ention-drawing signaltone which precedes either an alert or evacuate message when the system is automatic and put in emergency broadcast mode by the detection system The British Standards Institution 2013 3BS 5839-8:2013BRITISH STANDARD3.5 audibilityproperty of sound which allows it to be heard amon
43、g other sounds3.6 automatic modemode of operation of a voice alarm system which does not require manual intervention3.7 clarityproperty of a sound which allows its information-bearing components to be distinguished by the listenerNOTE 1 It is related to the freedom of the sound from distortion of al
44、l kinds.NOTE 2 There are three kinds of distortion that can reduce the clarity of a speech signal in an electro-acoustic system:a) amplitude distortion, due to non-linearity in electronic equipment and transducers;b) frequency distortion, due to non-uniform frequency response of transducers and sele
45、ctive absorption of high frequencies in acoustic transmission;c) time domain distortion, due to reflection and reverberation in the acoustic domain.3.8 critical signal pathall components and interconnections between every fire alarm broadcast initiation point and the input terminals on, or within, e
46、ach loudspeaker enclosure or other alarm warning device3.9 emergency loudspeaker zonepart of the area of coverage to which emergency information can be given separately3.10 emergency microphonemicrophone dedicated for use by the fire and rescue service or other responsible persons as part of a voice
47、 alarm system3.11 emergency modestatus of a system whereby emergency messages (either live or pre-recorded) are broadcastNOTE 1 If the system is in manual mode, all emergency messages would be preceded by a pre-announcement tone. If the system is in automatic mode, all messages would have intervenin
48、g tones between the messages.NOTE 2 If the system is used for broadcasting sounds other than emergency messages and tones, the sources of such non-emergency broadcast are to be disabled for the whole period of the state of emergency.3.12 equivalent continuous sound pressure level Leq,Ttwenty-fold de
49、cimal logarithm of the ratio of the root mean square (RMS) sound pressure level for a given time interval to the reference sound pressure, where the RMS sound pressure is determined with a standardized frequency weightingNOTE 1 The A-weighted time-average sound pressure level is notated LAeq,T , where T is the time interval.NOTE 2 BS EN 61672-1 gives further information regarding the requirements for sound pressure measurements.3.13 intelligibilitymeasure of the proportion of the content of a speech
