《BS EN 54-17-2005 火灾探测和报警系统.第17部分短路隔离开关.pdf》由会员分享，可在线阅读，更多相关《BS EN 54-17-2005 火灾探测和报警系统.第17部分短路隔离开关.pdf（44页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 54-17:2005 Fire detection and fire alarm systems Part 17: Short-circuit isolators The European Standard EN 54-17:2005 has the status of a British Standard ICS 13.220.20 - - - - - - BS EN 54-17:2005 This British Standard was published under the authority of the Standards Policy
2、 and Strategy Committee on 25 January 2006 BSI 25 January 2006 ISBN 0 580 47596 4 National foreword This British Standard 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,
3、to Subcommittee FSH/12/3, Control and indicating equipment, which has the responsibility to: aid enquirers to understand 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
4、 international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may
5、 be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” 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 a
6、re responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This 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 display
7、ed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments - - - - - - e - - - - -A- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - W W D - - - - - - - - - - - - EN 54-17:2005 (E) 2 Contents page Foreword. 3 Intro
8、duction 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 test procedure23 Annex B (informative) Apparatus for impact test30 Annex ZA (informative) Relationship of this European Standard with the Constructi
9、on 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 Committee CEN/TC 72 “Fire detection and fire alarm systems”, the secretariat of which is held by BSI. This European Standard shall be g
10、iven 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 shall be withdrawn at the latest by December 2008. This European Standard has been prepared under a mandate given to CEN by the Europea
11、n 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 European Standard. This European Standard has been prepared in co-operation with the CEA (C
12、omit Europen des Assurances) and with EURALARM (Association of European Manufacturers of Fire and Intruder Alarm Systems). Information on the relationship between this 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
13、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 io
14、nization 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、 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/output devices Part 20: Aspirating smoke detectors Part 21: Alarm transmission and fault warning routing equipment Part 22
16、: 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 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countr
17、ies are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerla
18、nd 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 of a transmission path of a fire detection and fire alarm system. This is normally achieved by connecting the tr
19、ansmission 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. reduction in the line voltage) jeopardises the correct operation of components on the transmission path. The f
20、aulty 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 not possible for this component standard to specify all of the requirements for the function of a short-circuit
21、 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. the control and indicating equipment and detectors.) and the transmission path parameters (e.g. line impedan
22、ce 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 short-circuit isolator, needed by system designers to use the device correctly, in accordance with the system
23、 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 design. tests to verify that the short-circuit isolator functions in accordance with these manufacturers speci
24、fications, 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 concepts that can be used for the operation of short-circuit isolators, it is not possible to define a precise functi
25、onal 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 most important points that have to be verified. To assist in developing such test procedures, some example proce
26、dures 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 operate correctly within the types of systems with which they are intended to be used. - - - - - - EN 54-17:200
27、5 (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 54-1). Means of isolation or protection incorporated within control and indicating equipment (item
28、 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 dated references, only the edition cited applies. For undated references, the latest edition of th
29、e 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 - Product family standard: Immunity requirements for components of fire, intruder and social alarm s
30、ystems 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) EN 60068-2-2, Basic environmental testing procedures Part 2: Tests Tests B: Dry heat (IEC 60068-2
31、-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 procedures Part 2: Tests Test Ea and guidance: Shock (IEC 60068-2-27:1987) EN 60068-2-30, Environmental
32、 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 contacts and connections (IEC 60068-2-42:2003) EN 60068-2-78, Environmental testing Part 2-78: T
33、ests 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 definitions For the purposes of this European Standard, the terms and definitions given in EN 54-1:1
34、996 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 resistance faults between the lines of this transmission path - - - - - - EN 54-17:2005 (E) 7 NOTE A sh
35、ort 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). 3.2 closed condition condition of the short-circuit isolator which allows the norma
36、l 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 isolator which prevents the passage of short circuit currents through the short-circui
37、t 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 Standard the short-circuit isolator shall meet the requirements of this clause, whic
38、h 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 integrated into other devices already covered by an existing European Standard (EN), the e
39、nvironmental 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 shall 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 failu