1、BRITISH STANDARDBS EN 54-17:2005Fire detection and fire alarm systems Part 17: Short-circuit isolatorsThe European Standard EN 54-17:2005 has the status of a British StandardICS 13.220.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g
2、55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 54-17:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 25 January 2006 BSI 25 January 2006ISBN 0 580 47596 4National forewordThis British Standard
3、 is the official English language version of EN 54-17:2005. The UK participation in its preparation was entrusted by Technical Committee FSH/12, Fire detection and alarm systems, to Subcommittee FSH/12/3, Control and indicating equipment, which has the responsibility to: aid enquirers to understand
4、the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.A list of organizations represented on this subcom
5、mittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “S
6、earch” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal o
7、bligations.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 41 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN
8、 STANDARDNORME EUROPENNEEUROPISCHE NORMEN 54-17December 2005ICS 13.220.20English VersionFire detection and fire alarm systems - Part 17: Short-circuitisolatorsSystmes de dtection et dalarme incendie - Partie 17:Isolateurs de court-circuitBrandmeldeanlagen - Teil 17: KurzschlussisolatorenThis Europea
9、n Standard was approved by CEN on 26 October 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concer
10、ning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own lang
11、uage and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malt
12、a, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in a
13、ny form and by any means reservedworldwide for CEN national Members.Ref. No. EN 54-17:2005: EEN 54-17:2005 (E) 2 Contents page Foreword. 3 Introduction 5 1 Scope 6 2 Normative references . 6 3 Terms and definitions. 6 4 Requirements 7 5 Tests. 10 Annex A (informative) Examples for the functional tes
14、t procedure 23 Annex B (informative) Apparatus for impact test 30 Annex ZA (informative) Relationship of this European Standard with the Construction Products Directive 89/106/EEC 32 Bibliography . 41 EN 54-17:2005 (E) 3 Foreword This European Standard (EN 54-17:2005) has been prepared by Technical
15、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 June 2006, and conflicting national standards
16、shall be withdrawn at the latest by December 2008. This European Standard 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
17、Annex ZA, which is an integral part of this European Standard. This European Standard has been prepared in co-operation with the CEA (Comit Europen des Assurances) and with EURALARM (Association of European Manufacturers of Fire and Intruder Alarm Systems). Information on the relationship between th
18、is European Standard and other standards of the EN 54 series is given in Annex A of EN 54-1:1996. 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 equi
19、pment 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: Compat
20、ibility assessment of system components Part 14: Guidelines for planning, design, installation, commissioning, use and maintenance Part 15: Point type multi-sensor fire detectors Part 16: Voice alarm control and indicating equipment Part 17: Short-circuit isolators EN 54-17:2005 (E) 4 Part 18: Input
21、/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 r
22、equirements According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy
23、, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 54-17:2005 (E) 5 Introduction The purpose of short-circuit isolators is to limit the consequences of low parallel resistance faults between the lines o
24、f a transmission path of a fire detection and fire alarm system. This is normally achieved by connecting the transmission path in a loop configuration, separating sections of the loop with short-circuit isolators and introducing a means of detecting the presence of a fault, if its consequences (e.g.
25、 reduction in the line voltage) jeopardises the correct operation of components on the transmission path. The faulty section of the loop can then be switched out, between a pair of short-circuit isolators, allowing the rest of the loop to continue to function correctly. It is recognised that it is n
26、ot possible for this component standard to specify all of the requirements for the function of a short-circuit isolator in a system. The requirements for the functioning of a short-circuit isolator are dependent on the system operation, the other components associated with the transmission path (e.g
27、. the control and indicating equipment and detectors.) and the transmission path parameters (e.g. line impedance and line loads) and will have to be verified in a system test. However, this component standard includes: a requirement that the manufacturer shall give all of the specifications, for the
28、 short-circuit isolator, needed by system designers to use the device correctly, in accordance with the system requirements, NOTE The system designer should ensure that only those short-circuit isolators having the necessary performance are chosen to meet the specific requirements of a given system
29、design. tests to verify that the short-circuit isolator functions in accordance with these manufacturers specifications, and tests to verify the stability of the short-circuit isolator with respect to environmental and electromagnetic compatibility (EMC) conditions. Due to the many different concept
30、s that can be used for the operation of short-circuit isolators, it is not possible to define a precise functional test procedure applicable to all types. Instead, this European Standard requires that a functional test procedure is developed to verify the manufacturers specification and lists the mo
31、st important points that have to be verified. To assist in developing such test procedures, some example procedures are given in an informative annex. In view of the above, it is important that, in addition to meeting the requirements of this European Standard, short-circuit isolators are shown to o
32、perate correctly within the types of systems with which they are intended to be used. EN 54-17:2005 (E) 6 1 Scope This European Standard specifies requirements, test methods and performance criteria for short-circuit isolators, for use in fire detection and fire alarm systems for buildings (see EN 5
33、4-1). Means of isolation or protection incorporated within control and indicating equipment (item B in Figure 1 of EN 54-1:1996) are not covered by this European Standard. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For d
34、ated 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 50130-4:1995, Alarm systems Part 4: Electromagnetic compatibility - P
35、roduct family standard: Immunity requirements for components of fire, intruder and social alarm systems EN 60068-1, Environmental testing Part 1: General and guidance (IEC 60068-1:1988 + Corrigendum 1988 + A1:1992) EN 60068-2-1, Environmental testing Part 2: Tests Tests A: Cold (IEC 60068-2-1:1990)
36、EN 60068-2-2, Basic environmental testing procedures Part 2: Tests Tests B: Dry heat (IEC 60068-2-2:1974 + IEC 60068-2-2A:1976) EN 60068-2-6, Environmental testing Part 2: Tests Test Fc: Vibration (sinusoidal) (IEC 60068-2-6:1995 + Corrigendum 1995) EN 60068-2-27, Basic environmental testing procedu
37、res Part 2: Tests Test Ea and guidance: Shock (IEC 60068-2-27:1987) EN 60068-2-30, Environmental testing Part 2: Tests Test Db and guidance: Damp heat, cyclic (12 + 12 hour cycle) (IEC 60068-2-30:1980 + A1:1985) EN 60068-2-42, Environmental testing Part 2-42: Tests Test Kc: Sulphur dioxide test for
38、contacts and connections (IEC 60068-2-42:2003) EN 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state (IEC 60068-2-78:2001) ISO 209-1:1989, Wrought aluminium and aluminium alloys Chemical composition and forms of products Part 1: Chemical composition 3 Terms and defi
39、nitions For the purposes of this European Standard, the terms and definitions given in EN 54-1:1996 and the following apply. 3.1 short-circuit isolator device, which may be connected into a transmission path of a fire detection and fire alarm system, to limit the consequences of low parallel resista
40、nce faults between the lines of this transmission path EN 54-17:2005 (E) 7 NOTE A short circuit isolating device may be a physically separate device or it may be incorporated into another device apart from the control and indicating equipment (e.g. integrated into a smoke detector or detector base).
41、 3.2 closed condition condition of the short-circuit isolator which allows the normal signals and supply currents to pass through the short-circuit isolator (i.e. the correct condition for the short-circuit isolator when there is no short circuit) 3.3 open condition condition of the short-circuit is
42、olator which prevents the passage of short circuit currents through the short-circuit isolator. (i.e. the correct condition for the short-circuit isolator when it is protecting part of a circuit from the effects of a short circuit) 4 Requirements 4.1 Compliance In order to comply with this European
43、Standard the short-circuit isolator shall meet the requirements of this clause, which shall be verified by visual inspection or engineering assessment, shall be tested as described in Clause 5 and shall meet the requirements of the tests. However, for short circuit isolating devices which are integr
44、ated into other devices already covered by an existing European Standard (EN), the environmental conditioning shall be performed in accordance with that EN. 4.2 Integral status indication If the short-circuit isolator incorporates an integral visual indication of its status, then this indication sha
45、ll not be red. 4.3 Connection of ancillary devices Where the short-circuit isolator provides for connections to ancillary devices (e.g. remote indicators), open- or short-circuit failures of these connections shall not prevent the correct operation of the short-circuit isolator. 4.4 Monitoring of de
46、tachable short-circuit isolators If a short circuit isolating device is detachable (i.e. it is attached to a mounting base), then a means shall be provided for a remote monitoring system (e.g. the control and indicating equipment) to detect the removal of the device from the base, in order to give a
47、 fault signal. 4.5 Manufacturers adjustments It shall not be possible to change the manufacturers settings except by special means (e.g. the use of a special code or tool) or by breaking or removing a seal. 4.6 On-site adjustments If there is provision for on-site adjustment of the short-circuit iso
48、lator, then for each setting the short-circuit isolator shall comply with the requirements of this European Standard. Access to the means of adjustment shall only be possible by the use of a code or special tool. EN 54-17:2005 (E) 8 4.7 Marking Each short-circuit isolator shall be clearly marked wit
49、h the following information: a) number and date of this European Standard (i.e. EN 54-17:2005); b) name or trademark of the manufacturer or supplier; c) model designation (type or number); d) wiring terminal designations; e) some mark(s) or code(s) (e.g. serial number or batch code), by which the manufacturer can identify, at least, the date or batch and place of manufacture, and the version number(s) of any software, contained within the short-circuit isolator. For detachable short-circuit isolators, the detachable part s
