1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationAutomatic burner control systems for burners and appliances burning gaseous or liquid fuelsBS EN 298:2012National forewordThis British standard is the UK implementation of EN 298
2、:2012. Itsupersedes BS EN 230:2005 and BS EN 298:2003, which will be withdrawn on 01 May 2015.The UK participation in its preparation was entrusted to Technical Committee GSE/22, Safety and control devices for gas and oil burners and gas burning appliances.A list of organizations represented on this
3、 committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012 ISBN 978 0 580 70697 4 ICS
4、27.060.01Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2012.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 298:201
5、2EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 298 May 2012 ICS 27.060.01 English Version Automatic burner control systems for burners and appliances burning gaseous or liquid fuels Systmes automatiques de commande pour brleurs et appareils utilisant des combustibles gazeux ou liquides Feueru
6、ngsautomaten fr Brenner und Brennstoffgerte fr gasfrmige oder flssige Brennstoffe This European Standard was approved by CEN on 9 March 2012. 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 nat
7、ional standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A ve
8、rsion 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,
9、 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, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATI
10、ON COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 298:2012: EBS EN 298:2012EN 298:2012 (E) 2 Contents Page For
11、eword 4g31g3 Scope 6g32g3 Normative references 6g33g3 Terms and definitions .7g34g3 Classification . 13g35g3 Units of measurement and test condition 13g36g3 Constructional requirements . 14g37g3 Performance 18g38g3 EMC/Electrical requirements . 30g39g3 Marking, installation and operating instruction
12、s 34g3Annex A (informative) Gas connections in common use in the various countries . 38g3Annex B (informative) Leak-tightness test g237 Volumetric method 39g3Annex C (informative) Leak-tightness g237 Pressure loss method 40g3Annex D (normative) Conversion of pressure loss into leakage rate . 41g3Ann
13、ex E (normative) Electrical/electronic component fault modes 42g3Annex F (normative) Additional requirements for safety accessories and pressure accessories as defined in EU 97/23/EC 44g3Annex G (normative) Materials for pressurized parts . 45g3Annex H (informative) Additional materials for pressuri
14、zed parts 46g3Annex I (normative) Requirements for controls used in DC supplied fuel burners and fuel burning appliances . 47g3Annex AA (informative) Functional characteristics of burner control systems, to be given by the appliance standard . 49g3Annex BB (informative) Fault modes of flame sensors
15、50g3Annex CC (informative) Functional diagrams of oil burner control systems . 52g3Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2009/142/EC relating to appliances burning gaseous fuels . 57g3Bibliography . 59g3BS EN 298:2012EN 298:
16、2012 (E) 3 Figures Figure 1 Basic functional chain of a typical flame supervision 7g3Figure 2 Basic functional chain of an independent flame detector device 8g3Figure 3 Flame sensors for visible light . 28g3Figure 4 Acoustic flame sensor 29g3Figure CC.1 Burner without pilot 54g3Figure CC.2 Burners w
17、ith pilot which operates only during the ignition time 55g3Figure CC.3 Ignition restoration after loss of sensed flame during running position . 55g3Figure CC.4 Recycling after loss of sensed flame during running position . 56g3Figure CC.5 Lock-out after loss of sensed flame during running position
18、. 56g3Figure CC.6 Lock-out for the non-establishment of the flame signal (during safety time t5) . 56g3Tables Table E.1 Electrical/electronic component faults modes . 42g3Table AA.1 Functional characteristics of gas burner control systems, to be given by the appliance standard. 49g3Table AA.2 Functi
19、onal characteristics of oil burner control systems, to be given by the appliance standard. 49g3Table BB.1 Fault modes of flame sensors . 50g3Table CC.1 Symbols 52g3Table ZA.1 Correspondence between this European Standard and Directive 2009/142/EC relating to appliances burning gaseous fuels . 57g3BS
20、 EN 298:2012EN 298:2012 (E) 4 Foreword This document (EN 298:2012) has been prepared by Technical Committee CEN/TC 58 “Safety and control devices for burners and appliances burning gaseous or liquid fuels”, the secretariat of which is held by BSI. This European Standard shall be given the status of
21、a national standard, either by publication of an identical text or by endorsement, at the latest by November 2012, and conflicting national standards shall be withdrawn at the latest by May 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of p
22、atent 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 t
23、he relationship of this document with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This document supersedes EN 230:2005 and EN 298:2003. This document refers to clauses of EN 13611:2007+A2:2011 and adapts them, indicating the changes by stating “with the fol
24、lowing modification“, “with the following addition“, “is replaced by the following“ or “is not applicable“. It also adds clauses or sub-clauses to the structure of EN 13611:2007+A2:2011 which are particular to this standard (EN 298:2012). Additional sub-clauses or annexes are either numbered startin
25、g from 101 or are designated as Annex AA, BB, CC etc. It should be noted however that these clauses and sub-clauses are not indicated as additions in the text. The following is a list of significant technical changes between this document and the previous editions: Alignment with EN 13611:2007+A2:20
26、11; Integration of the requirements from EN 230 (EN 230 is merged into prEN 298); NOTE If, due to the reference of EN 13611 the term “gas” will be part of a requirement or test, then the term “gas” shall be substituted by the term “fuel” Requirements from the flame supervision and the reactions in c
27、ase of loss of flame have been adapted to modifications made in EN 267 and EN 676 and optimised for better understanding; Requirements and tests for “independent flame detectors” have been integrated; New requirements concerning “common cause” have been added; Requirements for the new function “remo
28、te reset from lock-out” have been added. EN 298 compliance for burner control systems or flame detector devices cannot be claimed based upon SIL classification according to EN 61508. SIL classification cannot be claimed based upon compliance with this standard only. A supplementary method for SIL de
29、termination is specified in EN 13611:2007+A2:2011, Annex J. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
30、 Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, BS EN 298:2012EN 298:2012 (E) 5 Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 298:2012EN 298:2012 (E) 6 1
31、Scope This European Standard specifies the safety, construction and performance requirements for automatic burner control systems, programming units and flame detector devices, intended for use with gas and oil burners and gas and oil burning appliances, with or without fans and similar use. This Eu
32、ropean Standard is applicable to automatic burner control systems that include additional functions. This European Standard does not cover automatic burner control systems utilizing thermo-electric flame supervision devices. NOTE 1 European Standards for burners, appliances or processes which use au
33、tomatic burner control systems, programming units or flame detectors can override the requirements of this standard. NOTE 2 Provisions for production control are not part of this European Standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in thi
34、s 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 267:2009+A1:2011, Automatic forced draught burners for liquid fuels EN 1643, Valve
35、proving systems for automatic shut-off valves for gas burners and gas appliances EN 13611:2007+A2:2011, Safety and control devices for gas burners and gas burning appliances General requirements EN 14459:2007, Control functions in electronic systems for gas burners and gas burning appliances Methods
36、 for classification and assessment EN 60730-1:2011, Automatic electrical controls for household and similar use Part 1: General requirements (IEC 60730-1:2010 (modified) EN 60730-2-5:2002+A1:2004+A11:2005+A2:2010, Automatic electrical controls for household and similar use Part 2-5: Particular requi
37、rements for automatic electrical burner control systems (IEC 60730-2-5:2000+Am1:2004+Am2:2008, (modified) EN 60947-5-1:2004, Low-voltage switchgear and controlgear Part 5-1: Control circuit devices and switching elements Electromechanical control circuit devices (IEC 60947-5-1:2003) IEV 191, Interna
38、tional Electrotechnical Vocabulary Chapter 191: Dependability and quality of service (Consolidated version included Amendment 1 and Amendment 2); Identical with IEC 60050-191:1990-12 (Consolidated with IEC 60050-191/A1:1993-03 and IEC 60050-191/A2:2002-01) BS EN 298:2012EN 298:2012 (E) 7 3 Terms and
39、 definitions For the purposes of this document, the terms and definitions given in EN 13611:2007+A2:2011 and the following apply. 3.101 flame detector device device by which the presence of a flame is detected and signalled (see Figure 1) Note 1 to entry: Flame detector devices can consist of a flam
40、e sensor, an amplifier and a relay for signal transmission. These parts, with the possible exception of the actual flame sensor, can be assembled in a single housing for use in conjunction with a programming unit. Key 1 automatic burner control system (see 3.110) 2 flame detector device (see 3.101)
41、3 flame 4 flame sensor (see 3.103) 5 amplifier 6 filter 7 threshold 8 programming unit (see 3.109) 9 shut-off valve (see 3.104) 10 shut-off valve terminal 11 flame signal (see 3.107) 12 flame failure response time (see 3.105.1) 13 sensed flame (see 3.106) Figure 1 Basic functional chain of a typical
42、 flame supervision 3.102 independent flame detector device flame detector device which operates independent of the programming unit to provide the class C control function (see Figure 2) Note 1 to entry: Self-checking functions are incorporated in this type of flame detector device. BS EN 298:2012EN
43、 298:2012 (E) 8 Key 1 independent flame detector device (see 3.102) 2 flame 3 flame sensor (see 3.103) 4 amplifier 5 filter 6 threshold 7 flame signal (see 3.107) 8 flame failure detection time (see 3.105.2) 9 sensed flame (see 3.106) Figure 2 Basic functional chain of an independent flame detector
44、device 3.103 flame sensor device which reacts to the presence of the flame by providing an output signal that is used for further signal processing 3.104 shut-off valve safety device which releases the fuel flow when energized and stops the fuel flow automatically when de-energized Note 1 to entry:
45、For further information refer to EN 161 or EN 126 for gas and EN ISO 23553-1 for oil, or to other similar devices if mentioned in the relevant appliance standard. 3.105 time in case of flame failure 3.105.1 flame failure response time FFRT response time between the loss of a sensed flame and the res
46、ulting de-energizing of the shut-off valve terminals Note 1 to entry: FFRT may be referred to as “extinction safety time” in appliance standards. 3.105.2 flame failure detection time FFDT response time of an independent flame detector device between the loss of a sensed flame and the flame signal in
47、dicating the absence of a flame 3.106 sensed flame physical value monitored by the flame sensor 3.107 flame signal signal given by the flame detector device in case of sensed flame BS EN 298:2012EN 298:2012 (E) 9 3.108 flame simulation condition which occurs when the flame signal indicates the prese
48、nce of a flame when in reality no flame is present 3.109 programming unit unit which executes the program, reacts to signals from control and safety devices, gives the control commands, controls the start-up sequence, supervises the burner operation and causes controlled shut-down, and if necessary,
49、 safety-shut-down and lock-out Note 1 to entry: The programming unit follows a predetermined sequence of actions and always operates in conjunction with a flame detector device. 3.110 automatic burner control system system comprising at least a programming unit and all the elements of a flame detector device Note 1 to entry: The various functions of an automatic burner control system can be in one or more housings. 3.111 start position stage where the system is not in lock-out position and has
