1、PUBLISHED DOCUMENT Water boilers and auxiliary installations Part 17: Guideline for the involvement of an inspection body independent of the manufacturer The Technical Report CR 12952-17:2002 has the status of a Published Document ICs 27.060.30 PD CR 12952-1 7 12002 British Standards NO COPYING WITH
2、OUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW PD CR 12952-1712002 National foreword This Published Document is the official English language version of The UKparticipation in its preparation was entrusted to Technical Committee PVE/2, Water-tube boilers, which has the responsibility to: CR
3、 12952-1712002. This Published Document, having been prepared under the directionofthe Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 22 July 2002 - - aid enquirers to understand the text; present to the responsib
4、le European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this committee can be obtained on request to its sec
5、retary. Cros s-r e ferenc es The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search”faci1ity ofthe BSI Electronic Ca
6、talogue or ofBritish Stan dards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for their correct application. Summary of pages This document comprises a front cover, an inside front cover, the CR title page, pages 2 to 20, an in
7、side back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd.No. I Date I Comments O BSI 22 July 2002 ISBN O 580 40036 O CEN REPORT RAPPORT CEN CEN BERICHT CR 12952-17 May 2002 ICs English ver
8、sion Water boilers and auxiliary installations - Part 17: Guideline for the involvement of an inspection body independent of the manufacturer Chaudires tubes deau et installations auxiliaires - Partie 17: Guide pour limplication dun organisme dinspection indpendant du fabricant Wasserrohrkessel und
9、Anlagenkomponenten - Teil 17: Leitfaden fr die Einbeziehung einer herstellerunabhngigen Prforganisation This CEN Report was approved by CEN on 27 March 2002. It has been drawn up by the Technical Committee CEN/TC 269 CEN members are the national standards bodies of Austria, Belgium, Czech Republic,
10、Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Management Centre: rue de Stassart
11、, 36 B-1050 Brussels O 2002 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CR 12952-17:2002 E CR 12952-1 712002 (E) Contents Page Scope 4 Normative references 4 Guidance . 4 General 4 Modules . 4 Technical complexity . 4 Conformity a
12、ssessment activities 5 Type examination . Modules B + D and B + F 9 General 9 Procedure for type examination -for the guidance of the manufacturer 11 Manufacturing concessions . 11 Design and manufacturing schedule . Modules G and HI . 11 General 11 Information for the product type approval schedule
13、 . 9 Information for the design and manufacturing schedule II Procedure for design appraisal . for the guidance ofthe manufacturer . 12 Documentation and marking 13 Documentation required under the Pressure Equipment Directive . 14 1 2 3 3.1 3.2 3.3 4 5 5.1 5.2 5.3 5.4 6 6.1 6.2 6.3 7 8 2 CR 12952-1
14、 712002 (E) Foreword This document (CR 12952-17:2002) has been prepared by Technical Committee CEN /TC 269, “Shell and water- tube boilers“ the secretariat of which is held by DIN. The European Standard EN 12952 concerning water-tube boilers and auxiliary installations consists of the following Part
15、s: - Part I: General. - Part 2: Materials for pressure parts of boilers and accessories. - Part 3: Design and calculation for pressure parts. - Part 4: In-service boiler life expectancy calculations. - Part 5: Workmanship and construction of pressure parts of the boiler. - Part 6: Inspection during
16、construction, documentation and marking of pressure parts of the boiler. - Part 7: Requirements for equipment for the boiler. - Part 8: Requirements for firing systems for liquid and gaseous fuels for the boiler. - Part 9: Requirements for firing systems for pulverized solid fuels for the boiler. -
17、Part I O: Requirements for safeguards against excessive pressure. - Part I I: Requirements for limiting devices of the boiler and accessories. - Part 12: Requirements for boiler feedwater and boiler water quality. - Part 13: Requirements for flue gas cleaning systems. - Part 14: Requirements for flu
18、e gas DENOX-systems. - Part 75: Acceptance tests. - Part 16: Requirements for grate and fluidized bed firing systems for solid fuels for the boiler. CR 12952 Part 17: Guideline for the involvement of an inspection body independent of the manufacturer. Although these Parts can be obtained separately,
19、 it should be recognized that the Parts are inter-dependent. As such, the design and manufacture of water-tube boilers requires the application of more than one Part in order for the requirements of the standard to be satisfactorily fulfilled. 3 CR 12952-1 712002 (E) 1 Scope This Technical report gi
20、ves guidance for the involvement of an inspection body independent of the manufacturer of shell boilers as defined in EN 12952-1. 2 Normative references This CEN Report incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the approp
21、riate places in the text and the publications are listed hereafter. For dated refer- ences, subsequent amendments to or revisions of any of these publications apply to this CEN Report only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication
22、 referred to applies (including amendments). EN 10204, Metallic products - Types of inspection documents. EN 12952-1, Water-tube boilers and auxiliary installations - Part I: General. EN 12952-2, Water-tube boilers and auxiliary installations - Part 2: Materials for pressure parts of boilers and acc
23、essories. EN 1 2952-6, Water-tube boilers and auxiliary installations - Part 6: Inspection during construction; documentation and marking of pressure parts of the boiler. 3 Guidance 3.1 General Depending upon the conformance assessment module chosen by the manufacturer for the design and manufac- tu
24、re of each boiler component and the boiler assembly, the inspection activities will involve, to a greater or lesser extent, organisations which are independent of the manufacturer. For the guidance of the manufacturer, the specific involvement of such organisations, known as Responsible Authorities
25、(RA), is described in this CEN report. For the purpose of this standard, these organizations have been collectively termed RA. A definition of Responsible Authorities is given in EN 12952-1 :2002, 3.6. The involvement of responsible authorities is recognized by this standard as indicated below: a) i
26、n connection with conformity assessment requirements; b) arising from the complexity of the technical requirements. 3.2 Modules Reference to EN 12952-1:2002, Annex A - Guidance in the use of conformity assessment procedures - indicates that the modules normally applicable to water-tube boilers are B
27、 + D or B + F or G or HI. A digest showing the key requirements of these modules is also given in EN 12952-1. 3.3 Technical complexity Where the technical requirements are complex and no clearly defined procedure is given in this EN 12952, it is the convention within the boiler industry for the manu
28、facturer to prepare procedures based on his own experience proposing how the design/manufacture should proceed. In such cases the proposals are normally submitted to the RA for appraisal. Such appraisal will normally be completed at the initial design stage, but it is recognized that 4 CR 12952-1 71
29、2002 (E) similar proposals may be needed to introduce design modifications and/or to accommodate concessions (devia- tions) during the manufacturing stage. These latter proposals also form part of the design/type appraisal procedure. 4 Conformity assessment activities The extent of RA involvement wi
30、ll depend upon the conformity assessment procedure adopted by the manufac- turer. The assumed involvement of the RA for each appropriate conformance assessment module, in accordance with Table 4-1 for category IV steam boilers. For category III steam boilers appropriate modules may be chosen. For th
31、e guidance of the manufacturer, examples of the form that the following certificates may take are given in clause 7 - Manufacturers Declaration of Conformity, Responsible Authoritys Certificate of Conformity, Responsible Authoritys Surveillance and Inspection Report, Design Examination Certificate a
32、nd Type Examination Certificate. Considering the pressures and volumes applicable to water-tube boiler components, Tables 1 to 9 in annex II of the Pressure Equipment Directive (PED) should be consulted to determine the hazard category. The modules permit- ted for these hazard categories are include
33、d in annex III of the PED. NOTE A manufacturer can choose to adopt a higher category than indicated by annex II. The inspection activities given in EN 12952-6:2002, Table 4.5-1 are reproduced and supplemented in Table 4-1 with respect to those activities considered to involve the RA. This indicates
34、where the involvement of the responsible authority should be additional to that of the manufacturer as a function of the selected conformity assessment module. It should be noted that for the modules subject to the Type Examination procedure (B + D and B + F), with the issue of the Type Examination
35、certificate, no further design examination is required for the subsequently manufactured components. However, surveillance or inspection is required during the manufacturing stage as indicated in Table 4-1. 5 CR 12952-1 712002 (E) Number I Area of activity Table 4-1 - Conformity assessment activitie
36、s showing the involvement of Responsible Authorities Inspection operation RA involvement by module B D F G HI 1 Audit of quality system in operation including all modifications Quality systemlproduct type examination RA On going surveillance a Assessment of product type RA RA Issue type examination
37、certificate - see Figure 7-5 RA Check that the design dataka Icu lations conform to: - technical specifications if applicable -the requirements of this standard RA Check that drawing information conform to: -design data and calculations - technical specifications if applicable -the requirements of t
38、his standard RA Issue design examination certificate - see Figure 7-2 - Check that the specification for subcon- tracted parts conforms to: - technical specifications if applicable - manufacturing drawings -the requirements of this standard - applicable regulatory requirements RA Material certificat
39、es Check that the material can be used RA - Verify that the information on the certi- ficate and results conform to the design specification RA - 1 .I Quality system to HI Assessment of quality system docu- mentation including all modifications including all modifications On going surveillance inclu
40、ding all modifications Assessment of quality system docu- mentation including all modifications 1.2 Quality system to D 1.3 Product type exam ination 1.4 Type examination certificate 2 Design and general documentation 2.1 Design dataka Icu lations RA RA 2.2 Manufacturing drawings RA RA 2.3 Design ex
41、amination certificate RA 2.4 Specification for subcontracted parts RA RA 3 3.1 RA RA RA RA CR 12952-1 712002 (E) Verify that the consumables to be used are in accordance with the design speci- fication Identify the material with the material certificates and check the marking at the boiler manufactu
42、rers works Number RA RA Area of activity Verify that sub-contracted parts conform to the boiler manufacturers specifica- tion at the sub-contractors works Inspection operation I RA involvement by module RA Verify that appropriate welding proce- dure specifications are available and that their conten
43、ts are compatible with the welding procedure approvals RA Verify that the welding procedures are appropriate for the materials and the field of welding application, and that they have been approved by a RA RA Verify that formed parts are in accor- dance with the requirements of the forming procedure
44、s RA Verify that any PWHT on production test plates independent of the component complies with the specific heat treat- ment applied to the component Examine NDE reports on production test plates RA RA Confirm identification and marking of test specimens taken from production test plates for mechani
45、cal tests RA 3.2 Welding consum- ables 3.3 Material identifica- tion 3.4 Transfer of identifi- cation marks the boiler manufacturer for the transfer of marks 3.5 Acceptance of sub- contracted parts 4 Fabrication and welding 4.1 Welding procedure specifications RA RA RA RA 4.2 Welding procedure appro
46、vals RA RA RA RA 4.3 Welder approval RA - RA Verify that the welder approvals have been approved by a RA and that they are available and valid Verify that forming procedures are available, where applicable, and their contents are appropriate to the product to be formed RA RA RA RA RA RA RA RA 4.4 Fo
47、rming procedures 4.5 Formed parts RA RA 4.6 Production control test plates, if any Of I RA Witness removal and marking production test plates RA RA RA RA RA RA RA RA Witness mechanical tests I RA RA RA RA RA 7 CR 12952-1 712002 (E) Verify that the test information and results contained in the manufa
48、cturers report conform to the requirements of EN 12952 Number I Area of activity I Inspection operation I RA involvement by module B D F G HI RA RA RA RA RA Verify that appropriate non-destructive examination procedures are available and check the qualification of the originator 4.6 RA Production co
49、ntrol test plates, if any Verify the validity of the non-destructive examination operators qualifications 5 RA Non-destructive examination of welds Scrutinise any radiographs and check conformance to the acceptance criteria RA Re-check the ultrasonic examination of at least 5 % of the examined drum and header longitudinal and circumferential seams after scrutiny of manufacturers ultrasonic examination reports RA Verify that the information and results conform to the acceptance criteria RA 6.1 6.2 PWHT procedures Verify that the post-weld heat treatment RA RA - RA RA pro
