EN 62271-4-2013 en High-voltage switchgear and controlgear - Part 4 Handling procedures for sulphur hexafluoride (SF6) and its mixtures.pdf

1、BSI Standards PublicationHigh-voltage switchgear and controlgearPart 4: Handling procedures for sulphur hexafluoride (SF6) and its mixturesBS EN 62271-4:2013National forewordThis British Standard is the UK implementation of EN 62271-4:2013. It isidentical to IEC 62271-4:2013. It supersedes PD CLC/TR

2、 62271-303:2009,which will be withdrawn on 30 September 2016.The UK participation in its preparation was entrusted by TechnicalCommittee PEL/17, Switchgear, controlgear, and HV-LV co-ordination, toSubcommittee PEL/17/1, High-voltage switchgear and controlgear.A list of organizations represented on t

3、his committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 69838 5ICS

4、29.130.10; 29.130.99Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2013.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDA

5、RDBS EN 62271-4:2013EUROPEAN STANDARD EN 62271-4 NORME EUROPENNE EUROPISCHE NORM November 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix

6、 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 62271-4:2013 E ICS 29.130.10; 29.130.99 Supersedes CLC/TR 62271-303:2009 English version High-voltage switchgear and controlgear - Part 4: Handling proced

7、ures for sulphur hexafluoride (SF6) and its mixtures (IEC 62271-4:2013) Appareillage haute tension - Partie 4: Utilisation et manipulation de lhexafluorure de soufre (SF6) et des mlanges contenant du SF6(CEI 62271-4:2013) Hochspannungs-Schaltgerte und -Schaltanlagen - Teil 4: Handhabungsmethoden im

8、Umgang mit Schwefelhexafluorid (SF6) und seinen Mischgasen (IEC 62271-4:2013) This European Standard was approved by CENELEC on 2013-09-30. 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 n

9、ational 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 in three official versions (English, French, German)

10、. 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 electrotechnical committees of Austria, Belgium, B

11、ulgaria, 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, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Swit

12、zerland, Turkey and the United Kingdom. BS EN 62271-4:2013EN 62271-4:2013 - 2 - Foreword The text of document 17A/1044/FDIS, future edition 1 of IEC 62271-4, prepared by SC 17A “High-voltage switchgear and controlgear” of IEC/TC 17 “Switchgear and controlgear“ was submitted to the IEC-CENELEC parall

13、el vote and approved by CENELEC as EN 62271-4:2013. 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) 2014-06-30 latest date by which the national standards conflicting wit

14、h the document have to be withdrawn (dow) 2016-09-30 This document supersedes CLC/TR 62271-303:2009. EN 62271-4:2013 includes the following significant technical changes with respect to CLC/TR 62271-303:2009: a) the description of the potential effects on health of SF6by-products (former Annex D of

15、CLC/TR 62271-303:2009) has been replaced by the calculation methods for evaluating of the potential effects on health of SF6by-products (see Annex H); b) information about cryogenic reclaim of SF6have been added (see Annex I); c) handling procedures for the most popular SF6mixtures have been added (

16、see Annex J). 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. Endorsement notice The text of the International Standard IEC 62271-4:20

17、13 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 62271-203:2011 NOTE Harmonized as EN 62271-203:2012 (not modified). ISO 14040:2006 NOTE Harmonized as EN ISO 14

18、040:2006 (not modified). BS EN 62271-4:2013- 3 - EN 62271-4:2013 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for

19、its application. For dated references, only the edition cited applies. For undated references, the latest 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 ap

20、plies. Publication Year Title EN/HD Year IEC 60050-441 - International Electrotechnical Vocabulary (IEV) - Chapter 441: Switchgear, controlgear and fuses - - IEC 60050-601 - International Electrotechnical Vocabulary (IEV) - Chapter 601: Generation, transmission and distribution of electricity - Gene

21、ral - - IEC 60376 - Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment EN 60376 - IEC 60480 - Guidelines for the checking and treatment of sulphur hexafluoride (SF6) taken from electrical equipment and specification for its re-use EN 60480 - IEC 62271-1 - High

22、-voltage switchgear and controlgear - Part 1: Common specifications EN 62271-1 - - - Transportable gas cylinders - Gas cylinder identification (excluding LPG) - Part 3: Colour coding EN 1089-3 - BS EN 62271-4:2013 2 62271-4 IEC:2013 CONTENTS INTRODUCTION . 7 1 General 8 1.1 Scope 8 1.2 Normative ref

23、erences 8 2 Terms and definitions . 9 3 SF6handling during installation and commissioning . 11 3.1 General . 11 3.2 Evacuation, filling and checking the SF6quality after filling . 11 3.3 Topping-up of SF6pre-filled compartments to the rated filling pressure/density 13 3.4 Filling sealed pressure sys

24、tems . 15 4 SF6handling during normal service life 15 4.1 Re-filling of SF6to the rated filling pressure/density 15 4.2 Checking the SF6quality . 16 4.2.1 General . 16 4.2.2 Measurement of the SF6quality with portable equipment 16 4.2.3 Sampling and shipment of SF6for off-site analysis 17 5 SF6recov

25、ery and reclaim during maintenance . 18 5.1 General . 18 5.2 SF6recovery and reclaim from any compartment of controlled or closed pressure systems containing non-arced or normally arced SF6. 18 5.3 Recovery and reclaim from any compartment of controlled or closed pressure systems containing heavily

26、arced SF620 6 Dismantling of SF6electric power equipment at the end-of-life . 22 6.1 General . 22 6.2 End-of-life of controlled or closed pressure systems 23 6.3 End-of-life of sealed pressure systems 23 6.4 SF6recovery and reclaim at the end-of-life of sealed pressure systems 24 6.5 Dismantling of

27、electric power equipment at the end-of-life . 26 6.6 By-products at the end-of-life 27 Annex A (informative) Storage and transportation of SF6. 29 Annex B (informative) Safety and first aid 33 Annex C (informative) Training and certification . 39 Annex D (informative) Description of SF6Handling Equi

28、pment 43 Annex E (informative) Sulphur hexafluoride . 51 Annex F (informative) Environmental effects of SF6. 55 Annex G (informative) SF6by-products 58 Annex H (informative) Procedure for evaluating the potential effects on health of SF6by-products . 61 Annex I (informative) Cryogenic reclaim of SF6

29、. 67 Annex J (normative) Handling of SF6mixtures . 71 Bibliography 76 Figure 1 Evacuation, filling and checking the SF6quality after filling 12 BS EN 62271-4:201362271-4 IEC:2013 3 Figure 2 Topping-up of SF6pre-filled compartments to the rated filling pressure/density . 14 Figure 3 SF6re-filling to

30、the rated filling pressure/density 15 Figure 4 Checking the SF6quality on-site 17 Figure 5 SF6sampling and shipment . 18 Figure 6 Example of recovery and reclaim from any compartment of controlled or closed pressure systems containing non-arced or normally arced SF619 Figure 7 Example of recovery an

31、d reclaim from any compartment of controlled or closed pressure systems containing heavily arced SF6. 21 Figure 8 End-of-life of controlled or closed pressure systems . 23 Figure 9 End-of-life of sealed pressure systems . 24 Figure 10 SF6recovery and reclaim at the end-of-life of sealed pressure sys

32、tems . 25 Figure 11 Dismantling of electric power equipment 27 Figure D.1 General purpose reclaimer . 43 Figure D.2 Gas mixing device 49 Figure E.1 Pressure/temperature/density characteristics for SF616 52 Figure H.1 Procedure for the evaluation of the potential effects on health due to arcing . 65

33、Figure H.2 Procedure for the evaluation of the potential effects on health due to low energy discharges 66 Figure I.1 Saturated vapour pressure of various gases as a function of temperature 68 Figure I.2 Typical cryogenic reclaimer for SF6recovery on site 69 Figure I.3 Typical cryogenic reclaimer fo

34、r removing contaminants 70 Figure J.1 Vapour pressure of SF6. 74 Figure J.2 Maximum SF6storage density to avoid SF6liquefaction . 75 Table 1 Evacuation, filling and checking the SF6quality after filling . 13 Table 2 Topping-up of SF6pre-filled compartments to the rated filling pressure/density. 14 T

35、able 3 SF6re-filling to the rated filling pressure/density . 16 Table 4 Checking the SF6quality on-site . 17 Table 5 SF6sampling and shipment 18 Table 6 Example of recovery and reclaim from any compartment of controlled or closed pressure systems containing non-arced or normally arced SF620 Table 7

36、Example of recovery and reclaim from any compartment of controlled or closed pressure systems containing heavily arced SF6. 22 Table 8 SF6recovery at the end-of-life of sealed pressure systems . 26 Table 9 Expected SF6characteristics and quantity of by-products . 28 Table A.1 Methods for storage of

37、SF629 Table A.2 Container types and labelling required for storage and transportation of SF6. 30 Table A.3 International regulations for shipment of SF6. 31 Table B.1 Measures when working with SF6electric power equipment. 33 Table B.2 Safety measures when opening or accessing gas compartments 34 Ta

38、ble B.3 Neutralising solutions . 35 Table B.4 Additional safety measures 37 BS EN 62271-4:2013 4 62271-4 IEC:2013 Table D.1 Typical filter types used during SF6reclaim . 44 Table D.2 Gas measuring devices 47 Table E.1 Main chemical characteristics of SF616 51 Table E.2 Main physical characteristics

39、of SF616 . 53 Table E.3 Main electrical characteristics of SF616 53 Table H.1 OELs for SO2, HF, and S2F10. 63 Table H.2 SOF2production rate . 63 BS EN 62271-4:201362271-4 IEC:2013 7 INTRODUCTION As agreed with TC 10, annexes A, E, F, G, H and I will be removed from this document as soon as the revis

40、ed editions of IEC 60376 and IEC 60480 have been published. BS EN 62271-4:2013 8 62271-4 IEC:2013 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR Part 4: Handling procedures for sulphur hexafluoride (SF6) and its mixtures 1 General 1.1 Scope This part of IEC 62271 applies to the procedures for handling of S

41、F6during installation, commissioning, normal and abnormal operations, disposal at the end-of-life of high-voltage switchgear and controlgear. These procedures are regarded as minimum requirements to ensure the safety of personnel working with SF6(see Annex B) and to minimize the SF6emission to the e

42、nvironment. This standard generally applies also to gas mixtures containing SF6. The particularities for their handling are covered in Annex J. NOTE 1 Throughout this standard, use of the term High-Voltage (refer to IEC 60050-601:1985, 601-01-27) means a rated voltage above 1 000 V. However the term

43、 Medium Voltage (refer to IEC 60050-601: 1985, 601-01-28) is commonly used for distribution systems with voltages above 1 kV and generally applied up to and including 52 kV. NOTE 2 Throughout this standard, the term “electric power equipment” stands for “high-voltage and medium-voltage switchgear an

44、d controlgear”. NOTE 3 Throughout this standard, the term “pressure” stands for “absolute pressure”. 1.2 Normative references 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 ci

45、ted applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60050-441, International Electrotechnical Vocabulary Chapter 441: Switchgear, controlgear and fuses IEC 60050-601, International Electrotechnical Vocabulary Chapter 601: Generat

46、ion, transmission and distribution of electricity General IEC 60376, Specification of technical grade sulphur hexafluoride (SF6) for use in electrical equipment IEC 60480, Guidelines for the checking and treatment of sulphur hexafluoride (SF6) taken from electrical equipment and specifications for i

47、ts re-use IEC 62271-1, High-voltage switchgear and controlgear Part 1: Common specifications EN 1089-3, Transportable gas cylinders. Gas cylinder identification (excluding LPG). Colour coding BS EN 62271-4:201362271-4 IEC:2013 9 2 Terms and definitions For the purposes of this document, the terms an

48、d definitions given in IEC 60050-441 and IEC 60050-601, as well as the following apply. 2.1 abnormal release of SF6release from equipment in service due to a failure in the pressure system or mistake in the handling process Note 1 to entry: An abnormal SF6leak is usually an unwanted and continuous e

49、mission of gas at a higher rate than the equipment designed leak rate. As soon as an abnormal SF6leak is detected, appropriate measures to locate and eliminate it should be arranged. 2.2 handling of SF6any process which might involve transfer of SF62.3 evacuation transfer of a gas different from SF6(e.g. air or N2) which can be released into the atmosphere. The operation is performed utilising a vacuum pump 2.4 recovery of SF6