1、Industrial non-destructive testing equipment - Electron linear acceleratorBS IEC 62976:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06IEC 62976 Edition 1.0 2017-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial non-destructive testing equipment Electron
2、linear accelerator Appareils destins aux essais non destructifs pour le secteur industriel Acclrateur lectronique linaire INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 27.120.01 ISBN 978-2-8322-4128-8 Registered trademark of the International Electrotechnic
3、al Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr.National forewordThis British Standard is
4、the UK implementation of IEC 62976:2017.The UK participation in its preparation was entrusted to Technical Committee NCE/2, Radiation protection and measurement.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to incl
5、ude all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 90212 3ICS 27.120.01Compliance with a British Standard cannot confer immunity from legal obligations.This Br
6、itish Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS IEC 62976:2017IEC 62976 Edition 1.0 2017-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Industrial n
7、on-destructive testing equipment Electron linear accelerator Appareils destins aux essais non destructifs pour le secteur industriel Acclrateur lectronique linaire INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 27.120.01 ISBN 978-2-8322-4128-8 Registered tra
8、demark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr.
9、BS IEC 62976:2017 2 IEC 62976:2017 IEC 2017 CONTENTS FOREWORD . 4 1 Scope 6 2 Normative references 6 3 Terms and definitions 6 4 Equipment sets, names and work conditions 8 4.1 Equipment sets . 8 4.2 Name convention 8 4.3 Operating conditions . 9 4.3.1 Environmental requirement 9 4.3.2 Power supply
10、. 9 5 Technical requirements . 9 5.1 Appearance 9 5.2 Control system 9 5.2.1 Design principle . 9 5.2.2 Operation of start and stop 9 5.2.3 Functions of control system . 9 5.3 Performance . 10 5.3.1 X-ray beam energy 10 5.3.2 X-ray homogeneity . 10 5.3.3 X-ray beam air kerma rate . 10 5.3.4 X-ray be
11、am focal spot 11 5.3.5 X-ray beam asymmetry 11 5.3.6 X-ray sensitivity . 11 5.3.7 Dose leakage 12 5.4 Electrical safety 12 5.4.1 Protective grounding 12 5.4.2 Insulation resistance 12 5.4.3 Dielectric strength 12 5.4.4 Protection against electric shock . 12 5.5 Reliability 12 5.5.1 Continuous operat
12、ion . 12 5.5.2 Recovery . 12 5.5.3 Restart 12 6 Test methods . 12 6.1 General requirements . 12 6.1.1 Testing conditions . 12 6.1.2 Instruments and devices 13 6.2 Visual inspection . 14 6.3 Control system test . 14 6.4 Performance test 14 6.4.1 X-ray beam energy 14 6.4.2 X-ray homogeneity . 15 6.4.3
13、 X-ray beam air kerma rate . 16 6.4.4 X-ray beam focal spot 16 6.4.5 X-ray beam asymmetry 18 6.4.6 X-ray sensitivity . 18 BS IEC 62976:2017 2 IEC 62976:2017 IEC 2017 CONTENTS FOREWORD . 4 1 Scope 6 2 Normative references 6 3 Terms and definitions 6 4 Equipment sets, names and work conditions 8 4.1 E
14、quipment sets . 8 4.2 Name convention 8 4.3 Operating conditions . 9 4.3.1 Environmental requirement 9 4.3.2 Power supply . 9 5 Technical requirements . 9 5.1 Appearance 9 5.2 Control system 9 5.2.1 Design principle . 9 5.2.2 Operation of start and stop 9 5.2.3 Functions of control system . 9 5.3 Pe
15、rformance . 10 5.3.1 X-ray beam energy 10 5.3.2 X-ray homogeneity . 10 5.3.3 X-ray beam air kerma rate . 10 5.3.4 X-ray beam focal spot 11 5.3.5 X-ray beam asymmetry 11 5.3.6 X-ray sensitivity . 11 5.3.7 Dose leakage 12 5.4 Electrical safety 12 5.4.1 Protective grounding 12 5.4.2 Insulation resistan
16、ce 12 5.4.3 Dielectric strength 12 5.4.4 Protection against electric shock . 12 5.5 Reliability 12 5.5.1 Continuous operation . 12 5.5.2 Recovery . 12 5.5.3 Restart 12 6 Test methods . 12 6.1 General requirements . 12 6.1.1 Testing conditions . 12 6.1.2 Instruments and devices 13 6.2 Visual inspecti
17、on . 14 6.3 Control system test . 14 6.4 Performance test 14 6.4.1 X-ray beam energy 14 6.4.2 X-ray homogeneity . 15 6.4.3 X-ray beam air kerma rate . 16 6.4.4 X-ray beam focal spot 16 6.4.5 X-ray beam asymmetry 18 6.4.6 X-ray sensitivity . 18 IEC 62976:2017 IEC 2017 3 6.4.7 Leakage dose rate . 18 6
18、.5 Electrical safety testing . 19 6.5.1 Protective grounding 19 6.5.2 Insulation resistance 19 6.5.3 Dielectric strength 19 6.5.4 Protection against electric shock . 19 6.6 Reliability test . 19 6.6.1 Continuous operation . 19 6.6.2 Recovery . 19 6.6.3 Restart 19 7 Inspection rules . 20 7.1 Inspecti
19、on classification 20 7.2 Inspection items 20 7.3 Criterion rule . 20 8 Marking, packaging, transportation, storage and accompanying documents . 20 8.1 Marking . 20 8.1.1 Accelerator signs . 20 8.1.2 Component nameplates . 21 8.1.3 Labels . 21 8.1.4 Warning signs 21 8.2 Packaging . 21 8.3 Transportat
20、ion 21 8.4 Storage . 21 8.5 Accompanying documents 22 8.5.1 Instructions 22 8.5.2 Product certification . 22 8.5.3 Other documents . 22 Figure 1 Naming convention 8 Figure 2 Sketch map of the test module . 13 Figure 3 Sketch map of the copper block with a swivelling edge. 14 Figure 4 Schematic diagr
21、am of X ray beam radial uniformity measurement 15 Figure 5 Schematic diagram of the testing module in front of the detector 16 Figure 6 Schematic diagram of the “Sandwich” test module placement 17 Figure 7 Schematic diagram of the copper block test module placement 17 Figure 8 Diagram of leakage dos
22、e measurement points . 19 Table 1 Specifications of several commonly used accelerator models . 9 Table 2 Half value layer of materials corresponding to commonly used X-ray beam energies 10 Table 3 X-ray homogeneity of commonly used X-ray beam energies 10 Table 4 X-ray beam air kerma rate of differen
23、t models . 11 Table 5 Detection range of equivalent steel thickness corresponding to commonly used X-ray beam energies 11 Table 6 Testing conditions . 13 Table 7 Inspection items of the accelerator 20 BS IEC 62976:2017 4 IEC 62976:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INDUSTRIAL
24、NON-DESTRUCTIVE TESTING EQUIPMENT ELECTRON LINEAR ACCELERATOR FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international c
25、o-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred
26、 to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in thi
27、s preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an internationa
28、l consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable ef
29、forts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publica
30、tions transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. In
31、dependent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) N
32、o liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs
33、 (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct applicat
34、ion of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62976 has been prepared by technical co
35、mmittee 45: Nuclear instrumentation. The text of this standard is based on the following documents: FDIS Report on voting 45/821/FDIS 45/824/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has be
36、en drafted in accordance with the ISO/IEC Directives, Part 2. BS IEC 62976:2017 4 IEC 62976:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ INDUSTRIAL NON-DESTRUCTIVE TESTING EQUIPMENT ELECTRON LINEAR ACCELERATOR FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwid
37、e organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activ
38、ities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject
39、dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determi
40、ned by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committe
41、es. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which th
42、ey are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication
43、and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not res
44、ponsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical c
45、ommittees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Public
46、ations. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of p
47、atent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62976 has been prepared by technical committee 45: Nuclear instrumentation. The text of this standard is based on the following documents: FDIS Report on voting 45/821/FDIS 45/82
48、4/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. IEC 62976:2017 IEC 2017 5 The committee has decided that the contents of this
49、 publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended.BS IEC 62976:2017 6 IEC 62976:2017 IEC 2017 INDUSTRIAL NON-DESTRUCTIVE TESTING EQUIPMENT ELECTRON LINEAR ACCELERATOR 1 Scope This document gives the rules of naming, technical requirements,
