1、BRITISH STANDARD Shell boilers Part 5: Inspection during construction, documentation and marking of pressure parts of the boiler The European Standard EN 12953-5:2002 has the status ofa British Standard ICs 27.060.30; 27.100 BS EN 12953-512002 WkNb A%“ U- rn% E rn NO COPYING WITHOUT BSI PERMISSION E
2、XCEPT AS PERMITTED BY COPYRIGHT LAW $ present to the responsible international/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 o
3、rganizations represented on this committee can be obtained on request to its secretary. Cross-references 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 Cor
4、respondence Index?, or by using the ?Search?faci1ity ofthe BSI Electronic Catalogue or ofBritish Stan dards Online. This publication does not purport to include all the necessary provisions of a contract. Users of this publication are responsible for their correct application. Compliance with a Brit
5、ish Standard does not ofitself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 20, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document
6、 was last issued. Amendments issued since publication Amd.No. I Date I Comments O BSI 14 June 2002 ISBN O 580 39849 8 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12953-5 May 2002 ICs 27.060.30; 27.100 English version Shell boilers - Part 5: Inspection during construction, documentation and
7、marking of pressure parts of the boiler Chaudires tubes de fume - Partie 5: Contrles en cours de construction, documentation et marquage des parties sous pression des chaudires Growasserraumkessel - Teil 5: Prfung whrend der Herstellung, Dokumentation und Kennzeichnung fr drucktragende Kesselteile T
8、his European Standard was approved by CEN on 15 May 2002 CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
9、 concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European 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
10、own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Sp
11、ain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Management Centre: rue de Stassart, 36 B-1050 Brussels O 2002 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN natio
12、nal Members. Ref. No. EN 12953-52002 E EN 12953-512002 (E) Contents 1 2 3 4 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 6 6.1 6.2 6.3 6.4 Page Scope 4 Normative references 4 Terms and definitions 5 Symbols 5 Inspection and testing . 5 General 5 Approval of personnel . 5 Calibration of equipment . 6 Inspection act
13、ivities . 6 Non-destructive examinations 8 Weld production control test plates . 13 Final assessment . 16 Documentation. certification and marking 18 General 18 Documentation . 19 Declaration 19 Marking . 19 Annex ZA (informative) Clauses of this European Standard addressing essential requirements o
14、r other provisions of the Pressure Equipment Directive 20 2 EN 12953-512002 (E) Foreword This document (EN 12953-52002) has been prepared by Technical Committee CEN/TC 269 “Shell and water-tube boilers“, the secretariat of which is held by DIN. This European Standard has been prepared under a mandat
15、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 Directive(s), see informative Annex ZA, which is an integral part of this standard. This European Standard shall be given the status of
16、a national standard, either by publication of an identical text or by endorsement, at the latest by November 2002, and conflicting national standards shall be withdrawn at the latest by November 2002. The European Standard EN 12953 concerning shell boilers consists of the following Parts: - Part I:
17、General. - Part 2: Materials for pressure parts of boilers and accessories. - Part 3: Design and calculation for pressure parts. - Part 4: Workmanship and construction of pressure parts of the boiler. - Part 5: Inspection during construction, documentation and marking of pressure parts of the boiler
18、. - Part 6: Requirements for equipment for the boiler - Part 7: Requirements for firing systems for liquid and gaseous fuels for the boiler. - Part 8: Requirements for safeguards against excessive pressure. - Part 9: Requirements for limiting devices of the boiler and accessories. - Part IO: Require
19、ments for boiler feedwater and boiler water quality. - Part I I: Acceptance tests. - Part 12: Requirements for firing systems for solid fuels for the boiler. - Part 13: Operational instructions. CR 12953-1 4: Guidelines for the involvement of an inspection body independent of the manufacturer. Altho
20、ugh, these Parts can be obtained separately, it should be recognized that the Parts are inter-dependent. As such, the design and manufacture of shell boilers requires the application of more than one Part in order for the requirements of the standard to be satisfactorily fulfilled. According to the
21、CENKENELEC Internal Regulations, the national standards organizations of the following coun- tries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Sp
22、ain, Swe- den, Switzerland and the United Kingdom. 3 EN 12953-512002 (E) 1 Scope This Part of the European Standard specifies requirements for the inspection during construction, documentation and marking of shell boilers as defined in EN 12953-1. 2 Normative references This European Standard incorp
23、orates 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 this Euro
24、pean Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 288-3: 1992, Specification and approval of welding procedures for metallic materials - Part 3: Welding proce- dure tests fo
25、r the arc welding of steels. EN 473, Non destructive testing - Qualification and certification of NDT personnel - General principles. EN 571 -1 , Non-destructive testing - Penetrate testing - Part I: General principles. EN 764, Pressure equipment - Terminology and symbols - Pressure, temperature, vo
26、lume. EN 875, Destructive tests on welds in metallic materials - Impact tests - Test specimen location, notch orienta- tion and examination. EN 876, Destructive tests on welds in metallic materials - Longitudinal tensile test on weld metal in fusion welded joints. EN 895. Destructive tests on welds
27、in metallic materials - Transverse tensile test. EN 91 O, Destructive tests on welds in metallic materials - Bend tests. EN 970, Non-destructive examination of fusion welds - Visual examination. EN 1290, Non-destructive examination of welds - Magnetic particle examination of welds. EN 1321, Destruct
28、ive tests on welds in metallic materials - Macroscopic and microscopic examination of welds. EN 1435, Non-destructive examination of welds - Radiographic examination of welded joints. EN 171 2, Non-destructive examination of welds - Ultrasonic examination of welded joints -Acceptance levels. EN 171
29、3, Non-destructive examination of welds - Ultrasonic examination - Characterization of indications in welds. EN 171 4, Non-destructive examination of welds - Ultrasonic examination of welded joints. EN 12953-1:2002, Shell boilers - Part I: General.EN 12953-3:2002, Shell boilers - Part3: Design and c
30、alcula- tion for pressure parts. EN 12953-4:2002, Shell boilers - Part 4: Workmanship under construction of pressure parts of the boiler. EN 2581 7, Arc-welded joints in steel - Guidance on quality levels for imperfections (IS0 5817: 1992). EN IS0 6520-1, Welding and allied processes - Classificatio
31、n of geometric imperfections in metallic materials - Part I: Fusion welding (IS0 6520- I: 1998). 4 EN 12953-512002 (E) 3 Terms and definitions For the purposes of this Part of this European Standard, the terms and definitions given in EN 12953-1 and EN 764 apply. 4 Symbols For the purposes of this P
32、art of this European Standard, the symbols given in EN 12953-1:2002, Table4-1 shall ap- Ply. 5 Inspection and testing 5.1 General The manufacturer shall be responsible for ensuring the boiler conforms to the requirements of this European Stan- dard. Conformity shall be confirmed by the completion of
33、 a series of inspection activities as given in Table 5.4-1. Depending upon the conformity assessment module chosen by the manufacturer for the design and manufacture of each boiler (see EN 12953-1:2002, Annex B), the inspection activities shall involve, to a greater or lesser extent, or- ganisations
34、 which are independent of the manufacturer. NOTE ties (RA), is described in CR 12953-14. For the guidance of the manufacturer, the specific involvement of such organisations, known as responsible authori- The manufacturer shall provide all the necessary access to enable the responsible authority to
35、carry out the activities in which it is required to be involved. 5.2 Approval of personnel 5.2.1 Check of welder and welding operator approval The manufacturer shall certify that the welding of the boiler has been done by welders and welding operators who have been approved under the requirements of
36、 EN 12953-4:2002, 5.1 5.3.2 and the appropriate certification shall be made available on request. 5.2.2 Approval of non-destructive examination personnel For the purposes of this standard the term non-destructive examination (NDE) covers the conventional techniques of visual, radiographic, ultrasoni
37、c, magnetic particle examination and/or penetrant testing as specified in 5.5.2 to 5.5.4. Personnel responsible for non-destructive examination, including interpretation, evaluation and reporting shall be cer- tified in accordance with EN 473. An exception to this requirement shall be made for visua
38、l examination of welds and final inspection of boilers, for which EN 473 is not applicable. Visual examination shall be in accordance with EN 970. Visual examination shall be carried out by experienced personnel having sufficient knowledge in welding techniques, and a full comprehension of this Euro
39、pean Standard, to identify and interpret imperfections that might occur at the surface of the weld and the heat affected zone. Radiographs shall be viewed by personnel qualified to level 2 of EN 473 as a minimum. Magnetic particle inspection, penetrant inspection and ultrasonic examination shall be
40、performed under the direct su- pervision of personnel qualified to level 2 of EN 473 as a minimum. 5 EN 12953-512002 (E) Reference no. 5.3 Calibration of equipment Area of activity Inspection operation The manufacturer shall establish procedures to ensure that tools, gauges, instruments and other me
41、asuring and test- ing devices used in the manufacture and inspection activities affecting boiler quality, are properly controlled, calibrated and adjusted at specific intervals, to maintain accuracy within defined limits. I I Ensure that the specification for sub-contracted parts 5.4 Inspection acti
42、vities 2.1 The manufacturer shall confirm that the boiler components, as a minimum, conform to the requirements of this Euro- pean Standard by performing and authenticating the inspection activities listed in Table 5.4-1. Verify that certificate information and results conform to the desicin sDecifi
43、cation Material certificates 2.3 2.4 1 .I Identify the material with the material certificates and check the markings Ensure that the transfer of identification marks is in accordance with the approved procedure Material identification Transfer of identification marks Design datakalculations 3.1 Ens
44、ure that the design datakalculations conform to: - technical specifications, if applicable - the reauirements of this EuroDean Standard Verify that appropriate welding specifications are available and that their contents are compatible with the welding procedure approvals Verifv that the weldina Dro
45、cedures are aDDroDriate for Welding procedure specifications 1.2 3.3 1.3 Verify that the welder approvals have been approved by a responsible authority and that they are available and valid Welder approval I I Ensure that drawing information conforms to: Manufacturing drawings Purchase specification
46、s - design data and calculations - technical specifications, if applicable - the requirements of this European Standard Ensure that material and component specifications conform to: - technical specifications, if applicable - manufacturing drawings - the reauirements of this EuroDean Standard 1.4 Sp
47、ecifications for sub-contracted parts conform to: - technical specifications, if applicable - manufacturing drawings 2.2 I Welding consumables Verify that the consumables to be used are in accor- dance with the desian sDecification 2.5 I Verify that sub-contracted parts conform to the Acceptance of
48、sub-contracted parts manufacturer,s sDecification 3 Fabrication and welding 3.2 Welding proced Ure approvals the materials and thefield of welding appiication, and that they have been approved by a responsible I I authoritv 6 EN 12953-512002 (E) Reference 3.4 Table 5.4-1 (continued) Area of activity
49、 Forming procedures 4.1 4.2 Formed parts Weld preparations Verify that appropriate non-destructive examina- tion procedures are available and ensure the qualification of the originator is appropriate Ensure the non-destructive examination operators Scrutinise any radiographs and check confor- Non-destructive examination procedures Non-destructive examination operator qualifications qualifications are appropriate 3.7 I Weld seam set-up 4.4 3.8 tion conforms to the acceptance criteria Verify that the information and results conform to the acceptance criteria No
