1、Test methods for electroheatinginstallations with electron gunsBS EN 60703:2009raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsNational forewordThis British Standard is the UK implementation of EN 60703:2009. It is identi-cal to I
2、EC 60703:2008. It supersedes BS 7689:1993 which is withdrawn.The UK participation in its preparation was entrusted to Technical CommitteePEL/27, Electroheating.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to includ
3、e all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2009ISBN 978 0 580 56432 1ICS 25.180.10BRITISH STANDARDBS EN 60703:2009Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the aut
4、hority of the StandardsPolicy and Strategy Committee on Amendments issued since publicationAmd. No. Date Text affectedMarch 200931EUROPEAN STANDARD EN 60703 NORME EUROPENNE EUROPISCHE NORM January 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Ele
5、ctrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60703:2009 E ICS 25.180.10 Supersedes HD 440 S1:1983Engli
6、sh version Test methods for electroheating installations with electron guns (IEC 60703:2008) Mthodes dessai des installations lectrothermiques comportant des canons lectrons (CEI 60703:2008) Prfverfahren fr Elektrowrmeanlagen mit Elektronenkanonen (IEC 60703:2008) This European Standard was approved
7、 by CENELEC on 2008-12-01. CENELEC members are bound to comply with the CEN/CENELEC 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 concerning such national
8、 standards may be obtained on application to the Central Secretariat or to any CENELEC 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 CENELEC member into its own language an
9、d notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li
10、thuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 60703:2009EN 60703:2009 2 Foreword The text of document 27/628/CDV, future edition 2 of IEC 60703, prepared by IEC TC 27, Industrial electrohea
11、ting equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60703 on 2008-12-01. This European Standard supersedes HD 440 S1:1983. The significant changes with respect to HD 440 S1:1983 are as follows: EN 60519-7:2008 has been taken into account; test requirement
12、s have been completed with new items important for testing and acceptance of installations. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-09-01 latest date by which the
13、 national standards conflicting with the EN have to be withdrawn (dow) 2011-12-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60703:2008 was approved by CENELEC as a European Standard without any modification. _ BS EN 60703:2009 3 EN 60703:2009
14、 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest
15、edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60050-841 2004 International Electrotechnical Vocabulary (IEV
16、) - Part 841: Industrial electroheat - - IEC 60204-1 (mod) 2005 Safety of machinery - Electrical equipment of machines - Part 1: General requirements EN 60204-1 2006 IEC 60204-11 2000 Safety of machinery - Electrical equipment of machines - Part 11: Requirements for HV equipment for voltages above 1
17、 000 V a.c. or 1 500 V d.c. and not exceeding 36 kV EN 60204-11 2000 IEC 60398 1999 Industrial electroheating installations - General test methods EN 60398 1999 IEC 60519-1 2003 Safety in electroheat installations - Part 1: General requirements EN 60519-1 2003 IEC 60519-7 2008 Safety in electroheat
18、installations - Part 7: Particular requirements for installations with electron guns EN 60519-7 2008 BS EN 60703:2009 2 60703 IEC:2008 CONTENTS 1 Scope and object1H5 2 Normative references .2H5 3 Terms and definitions .3H5 4 General test requirements 4H7 4.1 Test procedure 5H7 4.2 Test intervals 6H8
19、 4.3 Ambient conditions 7H8 5 Test of auxiliary facilities 8H8 5.1 Assembly check 9H8 5.2 Test of electrical equipment.10H9 5.2.1 General .11H9 5.2.2 Continuity of return conductor and equipotential bonding.12H9 5.2.3 Test of safety interlocks and alarm system 13H9 5.3 Test of liquid cooling system
20、.14H9 5.4 Test of actuation systems15H9 5.5 Vacuum test 16H9 6 Test of electron gun system 17H10 6.1 Electron gun 18H10 6.1.1 Condition of parts 19H10 6.1.2 Moveable parts 20H10 6.1.3 Insulation resistance tests . 21H10 6.2 High-voltage power supply including cables 22H10 6.2.1 Earthing system. 23H1
21、0 6.2.2 Safety installation 24H10 6.2.3 High voltage connectors 25H10 6.2.4 Calibration of internal measurement systems. 26H11 6.2.5 Test of over-current protection device 27H11 6.3 Test of electron beam bending system 28H11 6.4 Test of electron beam deflection system 29H11 6.5 Test of electron beam
22、 focusing system 30H12 7 Production run tests . 31H12 7.1 Properties of beam deflection 32H12 7.1.1 Deflection limits. 33H12 7.1.2 Frequency response 34H12 7.1.3 Linearity of deflection angle. 35H12 7.2 Rated power test . 36H12 7.3 Testing of electron beam parameters 37H13 7.3.1 Beam power 38H13 7.3
23、.2 Beam diameter 39H13 7.4 Measurement of surface temperature of heated devices 40H13 7.5 Long-term stability under hot run conditions 41H13 7.6 X-ray test 42H13 7.7 Testing related to electromagnetic effects . 43H14 Table 1 Ambient conditions for tests 44H8 BS EN 60703:200960703 IEC:2008 5 TEST MET
24、HODS FOR ELECTROHEATING INSTALLATIONS WITH ELECTRON GUNS 1 Scope and object This International Standard applies to electroheating installations comprising one or more electron guns as heating source. The object of this standard is the standardization of test methods to determine the essential parame
25、ters, technical data and characteristics of electroheating installations comprising one or more electron guns. The standard does not contain a mandatory list of tests and is not restrictive. Tests may be selected from the proposed list. The specification established by agreement between the user and
26、 the manufacturer of electroheating installations can supplement these recommendations but should not be in contradiction with them. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies.
27、 For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-841:2004, International Electrotechnical Vocabulary (IEV) Part 841: Industrial electroheat IEC 60204-1:2005, Safety of machinery Electrical equipment of machines Part 1: General requi
28、rements IEC 60204-11:2000, Safety of machinery Electrical equipment of machines Part 11: Requirements for HV equipment for voltages above 1 000 V a.c. or 1 500 V d.c. and not exceeding 36 kV IEC 60398:1999, Industrial electroheating installations General test methods IEC 60519-1:2004, Safety in elec
29、troheat installations Part 1: General requirements IEC 60519-7:20080F, Safety in electroheat installations Part 7: Particular requirements for installations with electron guns 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60050-841, IEC 60519-7 (so
30、me of which are repeated here) and the following apply. 3.1 electron beam electron flux emitted from one source (cathode or plasma) and moving along the exactly determined tracks at very great velocities IEV 841-30-01, modified BS EN 60703:2009 6 60703 IEC:2008 3.2 electron (beam) gun system of gene
31、rating, forming and accelerating one or more electron beams IEV 841-30-08, modified 3.3 anode (of an electron gun) electrode capable of educing and accelerating electrons from the medium of lower conductivity IEV 841-22-31, modified 3.4 cathode (of an electron gun) electrode capable of emitting elec
32、trons from the medium of low conductivity and also of receiving positive carriers, if necessary IEV 841-22-32, modified 3.5 beam accelerating voltage potential difference between the cathode and the anode, to generate an electric field for acceleration of the electrons IEV 841-30-29 3.6 high-voltage
33、 power supply source of the acceleration voltage and of the emission current for electron guns 3.7 return conductor electrical interconnection between the high-voltage power supply (positive pole) and anodic part of the electron gun system including the vacuum chamber around the workpiece 3.8 interl
34、ock device that prevents activation of a piece of equipment when any form of hazard or danger exists 3.9 vacuum chamber enclosed space of a vacuum plant constructed in such a way that it can withstand a rarefied atmosphere inside, in which the workpiece to be treated is placed 3.10 electron gun cham
35、ber vacuum chamber in which the electron gun is located NOTE This chamber may be separated from the workpiece by an aperture, so that between the electron gun and the workpiece a pressure difference can be established. 3.11 electron beam deflection system electromagnetic coil or deflecting electrode
36、s system, applied to place the beam to different working positions or move the beam over the charge heating surface IEV 841-30-25, modified BS EN 60703:200960703 IEC:2008 7 3.12 electron beam bending system electromagnetic coil or permanent magnet for changing the direction of the electron beam outs
37、ide the electron gun 3.13 electron beam focusing system electromagnetic coil, system of coils or capacitor plates for focusing the electron beam over the charge heating surface IEV 841-30-27, modified 3.14 beam pattern image created by a cyclic time function of electron beam positions or a superposi
38、tion of such cycles 3.15 maximum deflection angle angle between electron beam attitude without any deflection and at maximum activation in one direction 3.16 deflection limits limits of a defined area that may proceed with the electron beam without danger for the equipment at reasonable power distri
39、bution 3.17 maximum deflection frequency frequency, at which the amplitude of the deflected beam is reduced to one half in relation to a static deflection caused by the dynamic performance of the complete deflection system 3.18 beam power product of electron beam current and acceleration voltage 3.1
40、9 cathode current electron current flowing from cathode NOTE 1 The electron beam current arriving at the workpiece may either be lower than the cathode current, or up to several orders of magnitude larger than the emission current if ion bombardment is also present. NOTE 2 There is a difference betw
41、een the possible emission current and the circulated current; cathode current is limited by the space charge. 3.20 rated power (of an electron gun) product of acceleration voltage and cathode current 4 General test requirements 4.1 Test procedure The test procedure includes tests and measurements, w
42、hich can be grouped as follows: a) Tests of auxiliary facilities (Clause 5); b) Tests of electron gun system (Clause 6); c) Production run tests (Clause 7). BS EN 60703:2009 8 60703 IEC:2008 The tests of group a) shall be finished before proceeding to the group b) tests. The test procedure shall inc
43、lude all relevant tests of groups a) and b). Production run tests of group c) are only recommendations, their necessity depends on the beam properties requested by the application. 4.2 Test intervals The test procedure shall be carried out immediately after the erection of the electron beam gun inst
44、allation, after general repair work, after an accident caused by the electron beam gun installation, after substantial modifications of the installation. The test procedure shall be repeated at least once a year. A shorter period may be determined by the manufacturer or by the user of the installati
45、on. After a repair of a single component the relevant test(s) is also required and may be limited to functionalities directly influenced by this component. 4.3 Ambient conditions The tests shall be carried out in the ambient conditions stated in Table 1, unless other conditions are specified by the
46、manufacturer. Table 1 Ambient conditions for tests Normal 20 Ambient temperature C Minimum 15 Maximum 40Relative humidity % Maximum 85 Altitude above sea level m Maximum 1 000 NOTE When the ambient conditions are beyond the values listed in this table, the measured values shall be corrected in accor
47、dance with the relevant rules. The ambient temperature is considered as an average value. All quantities dependent on the temperature shall refer to the ambient temperature of 20 C, the so-called reference ambient temperature. 5 Test of auxiliary facilities 5.1 Assembly check Completeness and integr
48、ity of equipment of the electron gun installation shall be verified. Particular attention shall be given to: safety appliances and danger signs, lock-out devices, X-ray shields including lead glass view ports. BS EN 60703:200960703 IEC:2008 9 5.2 Test of electrical equipment 5.2.1 General Basically,
49、 the test of electrical equipment including control system shall be carried out in accordance with IEC 60204-1, IEC 60398 and IEC 60204-11. Special test procedures for the electrical equipment for electroheat installations with electron guns are stated in the following subclauses. Special tests for electron guns and the high-voltage supply are given in Clause 6. 5.2.2 Continuity of return conductor and equipotential bonding The return conduct
