BS EN 60519-4-2013 Safety in electroheating installations Particular requirements for arc furnace installations《电热装置的安全性 电弧炉装置的详细要求》.pdf

1、BSI Standards PublicationSafety in electroheating installationsPart 4: Particular requirements for arc furnace installationsBS EN 60519-4:2013National forewordThis British Standard is the UK implementation of EN 60519-4:2013. It is identical to IEC 60519-4:2013. It supersedes BS EN 60519-4:2006 whic

2、h is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PEL/27, Electroheating.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. U

3、sers are responsible for its correct application. The British Standards Institution 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 73646 9ICS 25.180.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority o

4、f theStandards Policy and Strategy Committee on 30 September 2013.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60519-4:2013EUROPEAN STANDARD EN 60519-4 NORME EUROPENNE EUROPISCHE NORM August 2013 CENELEC European Committee for Electrotechnical Standardization

5、 Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60519-4:2013

6、 E ICS 25.180.10 Supersedes EN 60519-4:2006 English version Safety in electroheating installations - Part 4: Particular requirements for arc furnace installations (IEC 60519-4:2013) Scurit dans les installations lectrothermiques - Partie 4: Exigences particulires pour les installations de fours arc

7、(CEI 60519-4:2013) Sicherheit in Elektrowrmeanlagen - Teil 4: Besondere Bestimmungen fr Lichtbogenofenanlagen (IEC 60519-4:2013) This European Standard was approved by CENELEC on 2013-07-24. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions

8、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 CENELEC member. This European Standard exists i

9、n 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 and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national

10、 electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portuga

11、l, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 60519-4:2013EN 60519-4:2013 - 2 - Foreword The text of document 27/904/FDIS, future edition 4 of IEC 60519-4, prepared by IEC/TC 27 “Industrial electroheating and electromagnetic processing“ was submitte

12、d to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60519-4:2013. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-04-24 latest date by which the nationa

13、l standards conflicting with the document have to be withdrawn (dow) 2016-07-24 The clauses of parts of the EN 60519 series (hereinafter called Particular requirements) supplement or modify the corresponding clauses of EN 60519-1:2011 (General requirements hereinafter called Part 1). This part of EN

14、 60519 is to be read in conjunction with Part 1. It supplements or modifies the corresponding clauses of Part 1. Where the text indicates an “addition“ to or a “replacement“ of the relevant provision of Part 1, these changes are made to the relevant text of Part 1. Where no change is necessary, the

15、words “This clause of Part 1 is applicable“ are used. When a particular subclause of Part 1 is not mentioned in this part, that subclause applies as far as is reasonable. Additional specific provisions to those in Part 1, given as individual clauses or subclauses, are numbered starting from 101. NOT

16、E The following numbering system is used: subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1; unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including those in a replaced clause or subclause; addi

17、tional annexes are lettered AA, BB, etc. This document supersedes EN 60519-4:2006. EN 60519-4:2013 includes the following significant technical changes with respect to EN 60519-4:2006: The structure has been amended and adjusted to EN 60519-1:2011; The classification (Clause 4) has been adapted to d

18、etails with respect to secondary voltage in electric arc furnace installations; All provisions have been redrafted and the text is more concise with respect to EAF; Annexes AA, BB and CC have been restructured, with respect to details concerning high voltage designs and non-electrical issues, howeve

19、r to be aware of in those installations. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This standard covers the Principle Elements o

20、f the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). BS EN 60519-4:2013- 3 - EN 60519-4:2013 Endorsement notice The text of the International Standard IEC 60519-4:2013 was approved by CENELEC as a European Standard without any modificati

21、on. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 60073:2002 NOTE Harmonised as EN 60073:2002 (not modified). BS EN 60519-4:2013EN 60519-4:2013 - 4 - Annex ZA (normative) Normative references to international publications with their cor

22、responding European publications 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 references, the latest edition of the referenced document (including

23、 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/TS 60479-1 - Effects of current on human beings and livestock - Part 1: General aspects - - IEC 60519-1 +

24、corr. November 2010 2012 Safety in electroheating installations - Part 1: General requirements EN 60519-1 2011 IEC 60676 - Industrial electroheating equipment - Test methods for direct arc furnaces EN 60676 - IEC 60683 - Industrial electroheating equipment - Test methods for submerged arc furnaces E

25、N 60683 - BS EN 60519-4:2013 2 60519-4 IEC:2013 CONTENTS 1 Scope and object 5 2 Normative references . 5 3 Terms and definitions . 5 4 Classification of electroheating equipment 7 5 General requirements . 7 6 Isolation and switching . 8 7 Connections to the electrical supply network and internal con

26、nections . 10 8 Protection against electric shock 10 9 Equipotential bonding . 11 10 Control circuits and control functions 11 11 Protection against thermal influences . 11 12 Protection against other hazards 11 13 Marking, labelling and technical documentation 11 14 Commissioning, inspection, opera

27、tion and maintenance . 11 Annex A (normative) Protection against electric shock special measures 14 Annex AA (normative) Systems to assure improved safety for personnel working in the vicinity of electrodes and other live parts of secondary circuit . 15 Annex BB (normative) Additional requirements f

28、or the safety of non-electrical components of furnace installations 18 Annex CC (normative) Additional requirements for safety with respect to design of an installation 20 Bibliography 23 Figure AA.1 Arc furnace supply with HV furnace switch (or HV furnace breaker) in open position and HV disconnect

29、or in open position . 15 Figure AA.2 Arc furnace supply with HV furnace switch (or HV furnace breaker) in open position and HV earthing switch in closed position . 15 Figure AA.3 Arc furnace supply with buck-boost transformer or intermediate circuit transformer . 16 Figure AA.4 DC furnace supply wit

30、h HV furnace switch (or HV furnace breaker) in open position and HV disconnector in open position . 17 Figure AA.5 DC furnace supply with HV furnace switch (or HV furnace breaker) in closed position, valve firing pulses stopped and LV disconnector switch in open position . 17 BS EN 60519-4:201360519

31、-4 IEC:2013 5 SAFETY IN ELECTROHEATING INSTALLATIONS Part 4: Particular requirements for arc furnace installations 1 Scope and object This clause of Part 1 is replaced by the following. Replacement: This part of IEC 60519 provides particular safety requirements for electric arc furnace installations

32、 and its operating and maintenance personnel. These safety provisions concern the protection of persons and the environment against dangers of electrical origin and also against certain dangers of non-electrical origin. This standard is applicable to electroheating installations such as: a) Furnaces

33、 for direct arc heating, forming arcs between the electrode and metal such as the electric arc furnace using alternating current (EAFac) or direct current (EAFdc), and ladle furnace (LF); b) Furnaces for arc-resistance heating forming arcs between the electrode and the charge material or heating the

34、 charge material by the Joule effect, such as the submerged arc furnace using alternating current (SAFac), or direct current (SAFdc). NOTE For purposes of this document abbreviation EAF is used for all kinds of electric arc furnace installations. 2 Normative references This clause of Part 1 is appli

35、cable with the following additions. Additions: IEC 60519-1:2010, Safety in electroheating installations Part 1: General requirements IEC/TS 60479-1, Effects of current on human beings and livestock Part 1: General aspects IEC 60676, Industrial electroheating equipment Test methods for direct arc fur

36、naces IEC 60683, Industrial electroheating equipment Test methods for submerged-arc furnaces 3 Terms and definitions This clause of Part 1 is applicable with the following additions. Additions: NOTE 101 General definitions can be found in the IEC 60050 series, International Electrotechnical Vocabula

37、ry. Terms relating to industrial electroheat are defined in IEC 60050-841. Terms relating to EAF and SAF are also defined in IEC 60676 and IEC 60683. BS EN 60519-4:2013 6 60519-4 IEC:2013 3.101 arc furnace furnace with a vessel, in which a metallic charge is heated mainly by electric arc using alter

38、nating current (EAFac) or direct current (EAFdc) SOURCE: IEC 60050-841:2004, 841-26-05, modified the definition has been modified and abbreviations have been added 3.102 arc furnace transformer transformer changing medium/high voltage electrical supply to low voltage and high current for an EAF SOUR

39、CE: IEC 60050-841:2004, 841-26-55, modified the definition has been modified 3.103 electric arc furnace using alternating current EAFac furnace, in which electric arcs between the electrodes and the process material are formed, using three-phase alternating current Note 1 to entry: Ladle furnace (LF

40、) is operated under the same conditions. Note 2 to entry: This note only applies to the French language. SOURCE: IEC 60050-841:2004, 841-26-07, modified the term “alternating current arc furnace” has been replaced by “electric arc furnace using alternating current”, the definition has been modified,

41、 and an abbreviation and Notes 1 and 2 have been added 3.104 electric arc furnace using direct current EAFdc furnace, in which the direct current is induced via a bottom electrode (anode) to the material to be processed, forming arcs between the material and the electrode from top (cathode) SOURCE:

42、IEC 60050-841:2004, 841-26-06, modified the term “direct current arc furnace” has been replaced by “electric arc furnace using direct current”, the definition has been modified and an abbreviation has been added 3.105 EAF electrode part produced from high density graphite to transfer the electrical

43、energy forming arcs between tip and charge material Note 1 to entry: In EAFdc, a bottom electrode (anode) is metallic or conductive material in the bottom of an EAF and arcs are formed between the charge material and the graphite electrode from top (cathode). SOURCE: IEC 60050-841:2004, 841-26-38, m

44、odified the term “arc furnace electrode” has been replaced by “EAF electrode”, the definition has been modified and Note 1 has been added 3.106 electrode clamp metallic, water cooled equipment to hold the electrode and supply current for arcing to the electrode SOURCE: IEC 60050-841:2004, 841-26-39,

45、 modified the definition has been editorially improved BS EN 60519-4:201360519-4 IEC:2013 7 3.107 rectifier for direct current device by means of which alternating current is transferred into direct current for EAFdc 3.108 shell body of EAF made from steel and covered by a roof SOURCE: IEC 60050-841

46、:2004, 841-26-20, modified the term “arc furnace shell” has been replaced by “shell” and the definition has been modified 3.109 submerged arc furnace SAF vessel in which a combined arc / resistance heating is used to melt the charged material SOURCE: IEC 60050-841:2004, 841-26-12, modified the term

47、“submerged arc-resistance furnace” has been replaced and the definition has been modified 4 Classification of electroheating equipment This clause of Part 1 is applicable, except as follows: 4.2 Classification of electroheating equipment according to process frequency 4.2.1 Direct current equipment

48、Addition: EAFdc and SAFdc are classified as zero (0) frequency. It creates electromagnetic disturbances. 4.2.101 Secondary voltage Arc furnaces can be operated with a secondary voltage above 1 000 V a.c. (1 500 V d.c.) under preconditions as follows: a) the EAF is switched-on on the primary side of

49、the transformer, since there is no possibility to switch the installation on the secondary side (except installations shown in Figures AA.3 and AA.5); b) the insulation of the high current conductors to ground follows the minimum relevant standard IEC 60071-1 for secondary voltages above 1 000 V a.c. 5 General requirements This clause of Part 1 is applicable, except as follows: 5.1 General Additions: 5.1.101 All high voltage equipment on the furnace transformer primary si