1、BS EN 16497-2:2017Chimneys Concrete SystemChimneysPart 2: Balanced flue applicationsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 16497-2:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 16497-2:2017. The UK participa
2、tion in its preparation was entrusted to TechnicalCommittee B/506, Chimneys.A list of organizations represented on this 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
3、 application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 87201 3 ICS 91.060.40 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strate
4、gy Committee on 31 March 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 16497-2:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16497-2 March 2017 ICS 91.060.40 English Version Chimneys - Concrete System Chimneys - Part 2: Balanced flue applications Con
5、duits de fume - Conduits-Systmes de fume en bton - Partie 2: Applications quilibres Abgasanlagen - System-Abgasanlagen aus Beton - Teil 2: Luft-Abgas-Anlagen This European Standard was approved by CEN on 28 November 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations whic
6、h stipulate the conditions for giving this European Standard the status 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 Eur
7、opean Standard exists in three official versions (English, French, German). 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 a
8、re the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, R
9、omania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any
10、form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16497-2:2017 EBS EN 16497-2:2017EN 16497-2:2017 (E) 2 Contents Page European foreword . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions . 7 4 Form . 9 5 Materials 10 5.1 General . 10 5.2 Reaction to fire 10 5
11、.3 Reinforcement for handling . 11 6 Surface treatment 11 7 Tolerances on dimensions of individual concrete components 11 7.1 Declared dimensions 11 7.2 Straightness 12 7.3 Squareness of ends 12 8 Performance 12 8.1 Heat stress resistance . 12 8.2 Heat shock resistance . 12 8.3 Thermal resistance 13
12、 8.4 Gas tightness 13 8.5 Abrasion resistance . 13 8.6 Compressive strength . 14 8.7 Corrosion resistance . 14 8.8 Condensate resistance 14 8.9 Water vapour diffusion resistance 15 8.10 Bulk density . 15 8.11 Flexural strength under wind loading 15 8.12 Flow resistance . 16 8.12.1 Flow resistance of
13、 straight flue duct (rF) . 16 8.12.2 Flow resistance of straight air supply duct (rA) 16 8.12.3 Flow resistance of fittings . 16 8.13 Freezethaw resistance . 16 8.14 Resistance to fire external to external . 16 8.15 Dangerous substances 16 8.16 Relative movement between inner liner and outer wall .
14、17 8.17 Terminals 17 8.17.1 Type III . 17 8.17.2 Flow resistance of terminals 17 8.17.3 Wind velocity pressure of type III terminals 17 8.17.4 Recirculation factor of type III termination . 17 8.17.5 Pressure equalising opening 17 8.17.6 Rainwater ingress 17 8.17.7 Icing behaviour . 18 9 Designation
15、. 18 BS EN 16497-2:2017EN 16497-2:2017 (E) 3 9.1 General . 18 9.2 Temperature class 18 9.3 Pressure class 19 9.4 Resistance to condensate class 19 9.5 Corrosion resistance class . 20 9.6 Resistance to fire class 20 10 Marking 20 11 Product information 21 12 Assessment and verification of constancy o
16、f performance (AVCP) 21 12.1 General . 21 12.2 Initial type testing 21 12.3 Further type tests . 21 12.4 Factory production control . 22 Annex A (normative) Test methods 23 A.1 Squareness of ends test 23 A.1.1 Apparatus 23 A.1.2 First procedure 25 A.1.3 Test result first procedure . 25 A.1.4 Second
17、procedure . 25 A.1.5 Test result second procedure . 25 A.2 Straightness test 25 A.2.1 Apparatus 25 A.2.2 Procedure 25 A.2.3 Test result 26 A.3 Thermal performance tests 26 A.4 Thermal resistance 26 A.4.1 Test Method 26 A.4.2 Test results 27 A.5 Gas tightness test 27 A.5.1 Test Method 27 A.5.2 Test r
18、esult 27 A.6 Abrasion resistance test . 27 A.6.1 Test Method 27 A.6.2 Test result 27 A.7 Compressive strength test . 27 A.7.1 Apparatus 27 A.7.2 Preparation of test sample 27 A.7.3 Test procedure 28 A.7.4 Test result 28 BS EN 16497-2:2017EN 16497-2:2017 (E) 4 A.8 Corrosion and condensate resistance
19、test 28 A.8.1 Test apparatus. 28 A.8.2 Acid solution and test solution 31 A.8.3 Test sample 31 A.8.4 Conditioning . 31 A.8.5 Test procedure 31 A.8.6 Test results . 32 A.9 Water vapour diffusion resistance 32 A.9.1 Test method . 32 A.9.2 Test results . 32 A.10 Flexural strength under wind load 32 A.1
20、0.1 Principle 32 A.10.2 Preparation of test specimen . 33 A.10.3 Test procedure 33 A.10.4 Test result . 33 A.11 Bulk density . 33 A.11.1 Apparatus 33 A.11.2 Procedure 33 A.11.3 Test result . 33 A.12 Ultimate compressive strength . 34 A.12.1 Test procedure 34 A.12.2 Test result . 34 Annex B (informat
21、ive) Examples of concrete flue block shapes 35 B.1 General . 35 B.2 Multi-flued flue blocks 36 Annex C (normative) Thermal resistance calculation method . 37 C.1 Thermal resistance of the individual element 37 C.2 Thermal resistance of the chimney and of enclosures . 37 Annex D (normative) Requireme
22、nts of sampling plan according to ISO 2859-1:1999 at an Acceptable Quality Level (AQL) of 10 % and inspection level S2 . 38 D.1 Acceptability determination 38 D.1.1 Single sampling . 38 D.1.2 Double sampling . 38 D.2 Normal inspection 38 D.3 Reduced Inspection . 40 D.4 Reduced to normal inspection.
23、41 BS EN 16497-2:2017EN 16497-2:2017 (E) 5 D.5 Tightened inspection . 41 D.6 Tightened to normal inspection 41 D.7 Discontinuation of inspection 41 Annex E (informative) Recommended test sequence for performance characteristics 42 Annex ZA (informative) Relationship of this European Standard with Re
24、gulation (EU) No.305/2011 43 ZA.1 Scope and relevant characteristics 43 ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) 45 ZA.3 Assignment of AVCP tasks . 45 Bibliography . 48 BS EN 16497-2:2017EN 16497-2:2017 (E) 6 European foreword This document (EN 16497-2:2017) has
25、been prepared by Technical Committee CEN/TC 166 “Chimneys”, the secretariat of which is held by ASI. 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 September 2017, and conflicting national standa
26、rds shall be withdrawn at the latest by December 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandat
27、e 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 Regulation, see informative Annex ZA, which is an integral part of this document. In this European Standard, the Annexes A, C and D are
28、normative (not forming part of the product specification) and Annexes E and ZA are informative. This standard is one of a series of coordinated standards dealing with specification, design, and testing of chimneys, both single and multi wall. The coordinated package of standards is further divided b
29、y material of construction and this European Standard is one of a series of specifications and execution documents dealing with design and installation of concrete chimney products and systems. The standards in this series for concrete chimney products and systems are: EN 1857, Chimneys Components C
30、oncrete flue liners; EN 1858, Chimneys Components Concrete flue blocks; EN 12446, Chimneys Components Concrete outer wall elements. EN 16497-1, Chimneys Concrete system chimneys Part 1: Non-balanced flue applications EN 16497-2, Chimneys Concrete system chimneys Part 2: Balanced flue applications Ac
31、cording 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, Finland, Former Yugoslav Republic of Macedonia, France, Germa
32、ny, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16497-2:2017EN 16497-2:2017 (E) 7 1 Scope This European Standard specifies
33、the materials, dimensional and performance requirements for straight concrete system chimneys for balanced flue applications comprising a concrete flue liner and a combustion air supply duct, and a combination of compatible chimney components, which may be concrete flue blocks (see Clause 4), obtain
34、ed or specified from one manufacturing source with product responsibility for the whole chimney. The European Standard does not apply to concrete system chimneys with back ventilation. This European Standard does not cover products designated wet (W) in conjunction with corrosion class 3. This Europ
35、ean Standard also applies to concrete system chimneys constructed from storey-height elements and flue blocks reinforced for handling. This European Standard does not apply to structurally independent (free standing or self-supporting) system chimneys. NOTE Any reference to the term flue blocks impl
36、ies both flue blocks and their fittings, except where otherwise indicated. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated ref
37、erences, the latest edition of the referenced document (including any amendments) applies. EN 206:2013+A1:2016, Concrete Specification, performance, production and conformity EN 1443, Chimneys General requirements EN 13216-1, Chimneys Test methods for system chimneys Part 1: General test methods EN
38、13384-1, Chimneys Thermal and fluid dynamic calculation methods Part 1: Chimneys serving one heating appliance EN 14297:2004, Chimneys Freeze-thaw resistance test method for chimney products CEN/TS 16134:2011, Chimney terminals General requirements and material independent test methods EN ISO 7500-1
39、:2015, Metallic materials Calibration and verification of static uniaxial testing machines Part 1: Tension/compression testing machines Calibration and verification of the force-measuring system (ISO 7500-1:2015) ISO 2859-1:1999, Sampling procedures for inspection by attributes Part 1: Sampling sche
40、mes indexed by acceptance quality limit (AQL) for lot-by-lot inspection 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1443 and the following apply. 3.1 flue block fitting element fitted to the flue block such as an access opening or offset BS EN 164
41、97-2:2017EN 16497-2:2017 (E) 8 3.2 hollow wall flue block flue block having vertical cavities Note 1 to entry: Cavities may pass through both ends of the block. 3.3 manufacturers declared internal transverse dimension internal dimension of the flue block measured perpendicular to the longitudinal ax
42、is 3.4 manufacturers declared height internal height of the flue block Note 1 to entry: Examples of measurement are shown in Figure 1. a) with rebate b) with plain end Key H internal height Figure 1 Manufacturers declared height 3.5 manufacturers declared structural height maximum constructional hei
43、ght of the flue blocks as declared by the manufacturer 3.6 manufacturers declared overall wall thickness dimensions at its thinnest point, between the inside face of the flue and the outside face of the flue block, not measured at any joint feature Note 1 to entry: Examples for joint features are sp
44、igot/socket end 3.7 multi wall flue block flue block consisting of a flue liner and at least one additional wall BS EN 16497-2:2017EN 16497-2:2017 (E) 9 3.8 reinforced flue block flue block having reinforcement to assist handling (not for structural stability) 3.9 solid wall flue block flue block wi
45、thout cavities in the thickness of its walls 3.10 straight flue block flue block designed to be used in a vertical section of a chimney, without having any special characteristics and having the ends perpendicular to the axis of the flue 3.11 storey-height flue block factory made flue block having a
46、n overall height relating to the floor to floor height of a building 3.12 transfer block flue block designed to facilitate connection to another chimney product 3.13 concrete material formed by mixing cement, aggregate and water and with or without the incorporation of admixtures or additions, which
47、 develops its properties by hydration SOURCE: EN 206:2013+A1:2016, 3.1.1.1 3.14 precast concrete concrete that is cast in a place other than its final location of use 3.15 balanced flue chimney system System where the air entry to the combustion air supply duct is adjacent to the discharge of combus
48、tion products form the flue, the inlet and outlet being so positioned that wind effects are substantially balanced 4 Form The concrete system chimney for balanced flue applications shall comprise of flue blocks, which may be of single wall or multi wall construction, and a combustion air supply duct
49、. In the context of this standard the term flue block means a vertical element of a system chimney which may also comprise the following items where appropriate. Flue blocks according to EN 1858 Flue liners according to EN 1857 Insulation layer; outer wall elements according to EN 12446, or EN 13069, or of appropriate metal; mortar for jointing flue liners; BS EN 16497-2:2017EN 16497-2:2017 (E) 10 mortar for jointing a flue block or outer wall elements; terminal; chimney base; cladding; opening s
