1、- STDeBSI BS EN 1834-3-ENGL 2000 1624669 0841967 653 = BRITISH STANDARD Reciprocating internal combustion engines - Safety requirements for design and construction of engines for use in potentially explosive atomspheres - Part 3: Group II engines for use in flammable dust atmospheres The European St
2、andard EN 18343:2000 has the status of a British standard ICs 13.230; 27.020 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMWIXD BY COPYRIGHT LAW 35 EN 1834-3: 2000 STD-ES1 BS EN 3834-3-ENGL 2000 M Lb24669 0843970 375 - BS EN 18343:2000 AmdNo. National foreword Date Comments This British Standard,
3、having been prepared under the direction of the Engineering Sedor Committee, was published under the authority of the Standards Committee and comes into effect on 15 Aprii 2000 Co BSI 04-2000 ISBN O 580 34476 2 This British Standard is the official English language version of EN 18343:2000. The UK p
4、articipation in its preparation was entrusted by Technical Committee MCW14, RIC engines, to Subcommittee MCW14IJ1, Engines to be used in potentially explosive ahmspheres, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible European committee any enqu
5、iries on the - monitor related intrnational and European developments and promulgate interpretation, or proposals for change, and keep the UK interests informed; them in the UIC A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The
6、 British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “Intemational Standards Correspondence Index“, or by using the Findw faciity of the BSI Stan 27.020 English version Reciprocat
7、ing internal combustion engines - Safety requirements for design and construction of engines for use in potentially explosive atmospheres - Part 3: Group II engines for use in flammable dust atmospheres Moteurs alternatifs combustion interne - Prescriptions de scurit pour la conception et la constru
8、ction des moteurs fonctionnant en atmosphre explosible - Partie 3: Moteurs du groupe II utiliss dans des atmosphres de poussires inflammables Hubkolben-Verbrennungsmotoren - Sicherheitsanforderungen fr die Konstruktion und den Bau von Motoren zur Verwendung in explosionsgefhrdeten Bereichen -Teil 3
9、: Motoren der Gruppe II fr Bereiche mit explosionfhigen Stuben This European Standard was approved by CEN on 8 July 1999. CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this Europsan Standard the status of a national standard withou
10、t any alteration. Up-to-date lists and bibliographical references concemingsuch national standards 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
11、by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as he official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ir
12、eland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMIITEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FOR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels O 2000 CEN All rights of exploitati
13、on in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1834-3:2000 E STD-BSI BS EN 1834-3-ENGL 2000 m 1624667 0841972 148 E Page 2 EN 1834-32000 Contents Foreword _ O Introduction 1 Scope -. 2 Normative references . 3 Definitions . 4 List of hazards 5 Safety require
14、ments andlor measures . 6 Verification of the safety requirements andlor measures 7 Information to be supplied by the manufacturer to the user . Annex A (informative) Engine conditions and ignition sources Annex ZA (informative) Clauses of this European Standard addressing essential 8 Marking - Anne
15、x B (informative) Relation between zones and engines categories . requirements or other provisions of EU Directives 3 3 3 4 5 6 7 12 16 17 18 21 22 O BSI 04-2000 STD-BSI BS EN 1834-3-ENGL 2000 = Lb24669 0841973 084 W Page 3 EN 1834-312000 Foreword This European Standard has been prepared by Technica
16、l Committee CENTTC 270, Internal combustion engines, the Secretariat of which is held by DIN. 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 July 2000, and conflicting national standards shall be
17、 withdrawn at the latest by July 2000. 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 Annex ZA, wh
18、ich is an integral part of this standard. According to the CENICENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, I
19、taly, Luxembourg, Netherlands, Noway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. The standards prepared by CENTTC 270 are specific to internal combustion engines and supplement those A and B standards concerned with safety. Normative and informative annexes to this standard are ind
20、icated in the contents list. General Safety requirements for Internal Combustion Engines are given in EN 1679-1 :1998. O Introduction This standard has been prepared to be a harmonized standard to provide one means of conforming with the essential safety requirements of the Machinery (98/37/EEC) and
21、 ATEX (94/9/EEC) Directives and associated EFTA regulations. This European Standard is a type C standard as defined in EN 292:1991. The extent to which hazards are covered is indicated in the scope of this standard. In addition, machinery shall comply as appropriate with parts 1 and 2 of EN 292:1991
22、 for hazards which are not covered by this standard. The requirements of this standard apply to designers, manufacturers, suppliers and importers of reciprocating internal combustion engines. This standard also contains the information to be provided by the manufacturer to the user of reciprocating
23、internal combustion engines. 1 Scope This European Standard specifies the safety requirements and/or measures to remove the hazards and limit the risks on reciprocating internal combustion compression ignition engines of group II categories 2 and 3 for use in flammable dust atmospheres. The standard
24、 does not define requirements relating to the driven machinery. These requirements can be found in the appropriate application standards. 0 BSI 04-2000 STD-BSI BS EN I834-3-ENGL 2000 W Lb24bb9 0643974 TIO - Page 4 EN 1834-312000 This standard does not apply to engines used in premises for the proces
25、sing, manufacture or storage of explosives. The safety requirements for engines for use in potentially explosive atmospheres for underground applications are given in EN 1834-2:2000. The safety requirements for engines for use in flammable gas and vapour atmospheres are given in EN 1834-1:2000. This
26、 standard does not apply to spark ignition engines. The hazards applicable are listed in clause 4 and relate to the additional hazards of operation in an atmosphere that may become explosive. The tests which the engine and its ancillary fittings are required to undergo to verify compliance with this
27、 specification are detailed in this standard. General safety requirements .e. those common to all RIC engines, are covered in EN 1679-111998. This European Standard is applicable to engines which are manufactured after the date of issue of this standard. 2 Normative references This European Standard
28、 incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to thi
29、s European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 292-1 1991 EN 292-2:1991/+A1:1995 EN 1050 1996 EN 1127-1 1997 EN 1679-1 1998 EN 1822-1 1998 EN 1834-1 2000 EN 1834-2 2000 EN 50014 I999 Safe
30、ty of machinery - Basic concepts, general principles for design - Part I : Basic terminology, methodology Safety of machinery - Basic concepts, general principles for design - Part 2: Technical principles and specifications Safety of machinery - Principles for risk assessment Explosive atmospheres -
31、 Explosion prevention and protection - Part 1 : Basic concepts and methodology Reciprocating internal combustion engines - Safety - Part 1 : Compression ignition engines High efficiency air filter (HEPA and ULPA) - Part 1 : Classification, performance, testing, marking Reciprocating internal combust
32、ion engines - Safety requirements for design and construction of engines for use in potentially explosive atmospheres - Part 1: Group II engines for use in flammable gas and vapour atmospheres Reciprocating internal combustion engines - Safety requirements for design and construction of engines for
33、use in potentially explosive atmospheres - Part 2: Group I engines for use in underground workings susceptible to firedamp and/or combustible dust Electrical apparatus for potentially explosive atmospheres - General requirements Q BSI 04-2000 STD*BSI BS EN 1B34-3-ENGL 2000 9 Lb24bb7 0841775 757 W Pa
34、ge 5 EN 1834-312000 R044-001 I999 IS0 1813 1979 IS0 2710 1978 IS0 3046-3 1989 IS0 7967-1 1987 IS0 7967-2 1987 IS0 7967-3 1987 IS0 7967-4 1988 IS0 7967-8 1994 IS0 9563 1990 Safety of machinery - Guidance and recommendations for the avoidance of hazards due to static electricity Antistatic endless V b
35、elts - Electrical conductivity - Characteristics and method of test Reciprocating internal combustion engines - Vocabulary Reciprocating internal combustion engines - Performance - Part 3: Test measurements Reciprocating internal combustion engines - Vocabulary of components and systems - Part 1 : S
36、tructure and external covers Reciprocating internal combustion engines - Vocabulary of components and systems - Part 2: Main running gear Reciprocating internal combustion engines - Vocabulary of components and systems - Part 3: Valves, camshaft drive and actuating mechanisms Reciprocating internal
37、combustion engines - Vocabulary of components and systems - Part 4: Pressure charging and aidexhaust gas ducting systems Reciprocating internal combustion engines - Vocabulary of components and systems - Part 8: Starting systems Belt drives - Electrical conductivity of antistatic endless synchronous
38、 belts - Characteristics and test method 3 Definitions For the purposes of this standard, the definitions in IS0 2710:1978 and IS0 7967-1:1987, IS0 7967-2:1987, IS0 7967-3:1987, IS0 7967-4:1988 and IS0 7967-8:1994 and the following definitions apply: 3.1 Explosive atmosphere A mixture with air, unde
39、r atmospheric conditions of combustible material in the form of gas, vapour, mist or dust, in which after ignition, combustion spreads throughout the unconsumed mixture. 3.2 Potentially explosive atmosphere An atmosphere which could become explosive due to local and operational conditions. 3.3 Categ
40、ories Category 2 and 3 of equipment group II are defined in annex I of the ATEX Directive. In the meaning of the ATEX directive RIC engines are equipments. NOTE : The letter D is included to identify engines designed according to this European Standard. O BSI 04-2000 STDmBSI BS EN L834-3-ENGL 2000 L
41、b24bb9 084L97b 693 Page 6 EN 1834-312000 3.4 Zones for dust The definitions given in 6.3.3 of EN 1127-1:1997 apply. 3.5 Temperatures 3.5.1 Minimum ignition temperature of an explosive atmosphere I The definition is given in 3.30 of EN 1127-1:1997 3.5.2 Minimum ignition temperature of dust cloud The
42、definition is given in 3.32 of EN 1127-1:1997 3.5.3 Minimum ignition temperature of a dust layer The definition is given in 3.33 of EN 1127-1:1997 3.5.4 Maximum surface temperature The highest temperature attained under the most adverse operating conditions of the external surfaces to which the surr
43、ounding atmosphere has access. This includes the engine, its fittings, its ancillary equipment including, spark arrester, ducts, etc. 3.5.5 Maximum temperature The maximum temperature is the greatest under the most adverse operating conditions of: a) the maximum surface temperature as defined in 3.5
44、.4, b) the maximurn temperature of: - the exhaust gas emitted into the atmosphere immediately after the flame arrester, -the charge air at the outlet of the boosting device. 4 List of hazards Only the specific hazards for engine applications in potentially explosive atmospheres are listed below acco
45、rding to EN 1050: 1996. - hazards generated by materials and substances processed, used, exhausted or ejected by machinery including fire or explosion hazards (see 5.1, 5.9); - hazards caused by failure or malfunction of the control system (see 5.12); - hazards caused by incorrect position or absenc
46、e of guards or safety related devices including starting and stopping devices, also including safety signs and signals, warning devices or information (see 5.4, 5.5, 5.6). O BSI 04-2000 STD-BSI BS EN 1634-3-ENGL 2000 Lb24bb9 0843977 72T Page 7 EN 1834-312000 The main sources of ignition are: - hot s
47、urfaces, - Flames and hot gases, - Mechanically generated sparks, - Electrical apparatus and systems, - Static electricity. The potential sources of ignition likely to ignite the surrounding explosive atmosphere are listed in annex A2. The design specification for the engine necessary to minimize th
48、e likelihood of an ignition depend on the application and are as characterized by: 1. Category 2 D or 3 D, 2. The maximum temperature. 5 Safety requirements andlor measures Engines of group II shall meet the requirements of EN 1679-1:1998. No ignition of the explosive atmosphere by hot surfaces, hot
49、 gases, flames, sparks or electrical apparatus shall occur. The relation between the classification of hazardous zones and conformity categories is given in table B.l (see 6.3.2 of EN 1127-1:1997). All hot surfaces shall be designed such as to reduce the likelihood of a dust layer build up. In particular the potential of dust layer build up in excess of 5 mm shall be avoided (see also 7.2 a) in the instructions for use. For category 3 D engines, only normal operating conditions need to be taken into account, malfunctions need not be considered. For cate
