1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 303-5:2012Heating boilersPart 5: Heating boilers for solid fuels,manually and automatically stoked,nominal heat output of up to 500 kW Terminology, requirements, testing an
2、dmarkingBS EN 303-5:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 303-5:2012. Itsupersedes BS EN 303-5:1999 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee RHE/10, Heating boilers.A list of organizations repr
3、esented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580
4、71785 7ICS 01.040.91; 91.140.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2012.Amendments issued since publicationDate Text affectedBS EN 303-5:2012
5、EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 303-5 June 2012 ICS 01.040.91; 91.140.10 Supersedes EN 303-5:1999English Version Heating boilers - Part 5: Heating boilers for solid fuels, manually and automatically stoked, nominal heat output of up to 500 kW -Terminology, requirements, testing
6、and marking Chaudires de chauffage - Partie 5: Chaudires spciales pour combustibles solides, chargement manuel et automatique, puissance utile infrieure ou gale 500 kW -Dfinitions, exigences, essais et marquage Heizkessel - Teil 5: Heizkessel fr feste Brennstoffe, manuell und automatisch beschickte
7、Feuerungen, Nenn-Wrmeleistung bis 500 kW - Begriffe, Anforderungen, Prfungen und Kennzeichnung This European Standard was approved by CEN on 10 May 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the sta
8、tus of a national 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, G
9、erman). A version 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, Croa
10、tia, Cyprus, 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 S
11、TANDARDIZATION 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 303-5:2012: EBS EN 303-5:2012EN 303-5:2012 (E) 2
12、 Contents Page Foreword 5Introduction .71 Scope 81.1 General 81.2 Fuels 81.2.1 Biogenic fuels 91.2.2 Fossil fuels .91.2.3 Other solid fuels.92 Normative references 93 Terms and definitions 124 Requirements 174.1 General requirements . 174.2 Construction requirements 184.2.1 Production documentation
13、184.2.2 Heating boilers made of steel and non-ferrous materials 194.2.3 Boilers made of cast materials 244.2.4 Design requirements 254.3 Safety requirements . 284.3.1 General . 284.3.2 Manual stoking 284.3.3 Safety against back burning for automatic stoked boilers 284.3.4 Safety against fuel overloa
14、d of the boiler or interruption in fuel supply 324.3.5 Safety against lack of air supply or insufficient combustion 324.3.6 Surface temperatures . 324.3.7 Leakage of the combustion system 324.3.8 Temperature control and limiting devices . 334.3.9 Heating boiler accessories 344.4 Performance requirem
15、ents 354.4.1 General . 354.4.2 Boiler efficiency 354.4.3 Flue gas temperature . 364.4.4 Draught 364.4.5 Combustion period . 364.4.6 Minimum heat output . 364.4.7 Emission limits 375 Test . 385.1 Test conditions . 385.1.1 General . 385.1.2 Choice of boiler and fittings to be tested . 395.1.3 Conditio
16、n of the boiler . 395.1.4 Type test 395.2 Measuring instruments and methods . 395.3 Test fuel . 405.4 Pressure test for boilers of sheet or sheet metal of non-ferrous metal 425.4.1 Tests to be carried out before production . 425.4.2 Test during production 425.5 Pressure test for boilers of cast iron
17、 or non-ferrous metals . 425.5.1 Test to be carried out before production . 425.5.2 Test during production 43BS EN 303-5:2012EN 303-5:2012 (E) 3 5.6 Test for gas side soundness 445.7 Conducting the boiler performance test . 445.7.1 General . 445.7.2 Setting up the test rig 455.7.3 Measured quantitie
18、s 455.7.4 Test method and test duration . 465.8 Determination of the heat output and the efficiency of the boiler 475.8.1 Method for the measurement of the heat output . 475.8.2 Determining the nominal heat output 475.8.3 Determining the minimum heat output . 475.8.4 Determination of the boiler effi
19、ciency (direct method) 485.8.5 Electrical consumption . 485.9 Determination of the emission values . 485.9.1 Heating boiler with manual stoking . 485.9.2 Heating boiler with automatic stoking 485.9.3 Determination of the emissions at minimum heat output . 485.10 Calculation . 495.10.1 Boiler heat ou
20、tput 495.10.2 The heat input 495.10.3 Boiler efficiency . 495.10.4 Emissions . 495.11 Determination of the waterside resistance . 505.12 Surface temperature 505.13 Function check of the temperature controller and safety temperature limiter at the boiler 505.14 Function test for the rapidly disconnec
21、t able firing system . 515.15 Function test on the device for dissipating excess heat (partly or non disconnectable firing system) . 515.16 Check of the safety and risk assessment . 515.16.1 General . 515.16.2 Safety test of consequences of fuel overload and effect of a blockage of the fuel supply .
22、 535.16.3 Loss of combustion air supply 535.16.4 Resistance to thermal conductance 535.16.5 Additional tests for alternative verification of the safety against back burning . 536 Test report and other documents 547 Marking . 557.1 General . 557.2 Information on the boiler plate . 557.3 Boiler plate
23、requirements . 558 Technical documentation, supplied with boiler . 558.1 General . 558.2 Technical information and installation instructions 558.3 Operating instructions 57Annex A (informative) Manual measurement of particles in the gas flow, gravimetric determination of particle load with filter sy
24、stems . 58Annex B (normative) Design criteria for solutions to prevent back burning . 61Annex C (informative) A-deviations 66C.1 General . 66C.2 Deviations from Austria: . 66C.2.1 General . 66C.2.2 Boiler efficiency for nominal heat output and minimum heat output 66C.2.3 Emission limits 67C.3 Deviat
25、ions from CROATIA 68C.4 Deviations from DENMARK 69C.4.1 Subclause 4.4.2 Boiler Efficiency 69C.4.2 Subclause 4.4.7 Emission Limits . 69C.4.3 Subclause 5.1 Test Base. 70BS EN 303-5:2012EN 303-5:2012 (E) 4 C.5 Deviations from Germany 70C.5.1 Clause 4.4.7 Emission limits 70C.5.2 Clause 5.9 72C.6 Deviati
26、ons from Switzerland 72C.7 Deviations from United Kingdom 73C.8 Deviations for Italy 77Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC Machinery Directive 79Bibliography . 81BS EN 303-5:2012EN 303-5:2012 (E) 5 Foreword This
27、 document (EN 303-5:2012) has been prepared by Technical Committee /TC 57 “Heating boilers”, 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 December 2012,
28、 and conflicting national standards shall be withdrawn at the latest by December 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights.
29、 This document supersedes EN 303-5:1999. 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 relationship with EU Directive(s), see informative Annex ZA, which is
30、an integral part of this document. In comparison with EN 303-5:1999, the following technical changes were made: a) the scope was extended to a nominal heat output of the heating boilers for 500 kW; b) usable fuel to non-wood biomass and further solid fuels were extended; c) requirements for material
31、s, weld joints and wall thicknesses were revised; d) risk analysis was implemented; e) general and electrical safety requirements were revised; f) emission class 1 and 2 were deleted and new emission class 4 and 5 were added; g) tests were revised and new tests for safety requirements were added; h)
32、 Annexes were re-structured; i) Consideration was given to the essential requirements of the Machinery Directive 2006/42/EC. The following structure is intended for the European Standards for heating boilers: EN 303-1, Heating boilers Part 1: Heating boilers with forced draught burners Terminology,
33、general requirements, testing and marking EN 303-2, Heating boilers Part 2: Heating boilers with forced draught burners Special requirements for boilers with atomizing oil burners EN 303-3, Heating boilers Part 3: Gas-fired central heating boilers Assembly comprising a boiler body and a forced draug
34、ht burner EN 303-4, Heating boilers Part 4: Heating boilers with forced draught burners Special requirements for boilers with forced draught oil burners with outputs up to 70 kW and a maximum operating pressure of 3 bar Terminology, special requirements, testing and marking BS EN 303-5:2012EN 303-5:
35、2012 (E) 6 EN 303-5, Heating boilers Part 5: Heating boilers for solid fuels, manually and automatically stoked, nominal heat output of up to 500 kW Terminology, requirements, testing and marking EN 303-6, Heating boilers Part 6: Heating boilers with forced draught burners Specific requirements for
36、the domestic hot water operation of combination boilers with atomizing oil burners of nominal heat input not exceeding 70 kW EN 303-7, Heating boilers Part 7: Gas-fired central heating boilers equipped with a forced draught burner of nominal heat output not exceeding 1 000 kW EN 304, Heating boilers
37、 Test code for heating boilers for atomizing oil burners. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, F
38、inland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 303-5:2012EN 303-5:2012 (E) 7 Introduction This document is a
39、type C standard as stated in EN ISO 12100. The machinery concerned, and the extent to which hazards, hazardous situations and hazardous events are covered, are indicated in the scope of this document. This standard deals with boilers which are within the Scope Machinery Directive and boilers that ar
40、e outside of the Scope Machinery Directive. When provisions of this type C standard are different from those which are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for machines that have been designed and built ac
41、cording to the provisions of this type C standard. BS EN 303-5:2012EN 303-5:2012 (E) 8 1 Scope 1.1 General This European Standard applies to heating boilers including safety devices up to a nominal heat output of 500 kW which are designed for the burning of solid fuels only and are operated accordin
42、g to the instructions of the boiler manufacturer. This European Standard deals with significant hazards, hazardous situations and events relevant to heating boilers used as intended and under the conditions foreseen by the manufacturer (see Clause 4). The boilers may operate under natural draught or
43、 forced draught. The stoking may work manually or automatically. NOTE This European Standard deals with boilers which are both within and outside of the scope of the Machinery Directive 2006/42/EC. This European Standard contains requirements and test methods for safety, combustion quality, operatin
44、g characteristics, marking and maintenance of heating boilers. It also covers all external equipment that influences the safety systems (e.g. back burning safety device, integral fuel hopper). This European Standard covers only boilers that include burners as a unit. The standard applies to the comb
45、ination of a boiler body with a solid fuel burner according to EN 15270 as a unit only when the whole unit is tested in accordance with this European Standard. Heating boilers in accordance with this European Standard are designed for central heating installations where the heat carrier is water and
46、 the maximum allowable temperature is 110 C, and which can operate at a maximum allowable operating pressure of 6 bars. For heating boilers with a built-in or attached water heater (storage or continuous flow heater), this European Standard only applies to those parts of the water heater which are n
47、ecessarily subject to the operating conditions of the heating boiler (heating part). This European Standard does not apply to: heating boilers and other heating appliances which are also designed for the direct heating of the place of installation; cooking appliances; the design and construction of
48、external fuel storage and transportation devices prior to the safety devices of the boiler; room sealed applications; condensing boilers. This European Standard specifies the necessary terminology for solid fuel heating boilers, the control and safety related requirements, the design requirements, the technical heating requirements (taking into account the environmental requirements) and testing, as well as the marking requirements. This European Standard is not applicable to heating boilers which are tested before the date of its publication as an EN (European Standard). 1.2 Fuels Thes
