EN 61230-2008 en Live working - Portable equipment for earthing or earthing and short-circuiting《带电作业 便携式接地或接地短路设备》.pdf

1、Live working Portableequipment for earthing orearthing and short-circuitingBS EN 61230:2008raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsNational forewordThis British Standard is the UK implementation of EN 61230:2008. It is ide

2、ntical to IEC 61230:2008. It supersedes BS EN 61230:1996 which is withdrawn.The UK participation in its preparation was entrusted to Technical CommitteePEL/78, Tools for live working.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication doe

3、s not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2009ISBN 978 0 580 60057 9ICS 13.260; 29.240.20; 29.260.99BRITISH STANDARDBS EN 61230:2008Compliance with a British Standard cannot confer immunity fromlegal obligations.This Br

4、itish Standard was published under the authority of the StandardsPolicy and Strategy Committee on Amendments issued since publicationAmd. No. Date Text affectedMarch31 2009EUROPEAN STANDARD EN 61230 NORME EUROPENNE EUROPISCHE NORM November 2008 CENELEC European Committee for Electrotechnical Standar

5、dization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61230:2008 E

6、 ICS 13.260; 29.240.20; 29.260.99 Supersedes EN 61230:1995 + A11:1999English version Live working - Portable equipment for earthing or earthing and short-circuiting (IEC 61230:2008) Travaux sous tension - Equipements portables de mise la terre ou de mise la terre et en court-circuit (CEI 61230:2008)

7、 Arbeiten unter Spannung - Ortsvernderliche Gerte zum Erden oder Erden und Kurzschlieen (IEC 61230:2008) This European Standard was approved by CENELEC on 2008-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

8、 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 Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English

9、, 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 Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Bel

10、gium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 61230:

11、2008 - 2 - Foreword The text of document 78/741/FDIS, future edition 2 of IEC 61230, prepared by IEC TC 78, Live working, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61230 on 2008-10-01. This European Standard supersedes EN 61230:1995 + A11:1999. The major change

12、s are: extension of the scope to cover the use of equipment on d.c. installations; extension of the use of aluminium to all conductive parts of the device; extension of the application to silicone rubber cables made by the revision of TC 20 document EN 61138; possibility of using this standard for s

13、eparate components of the equipment; general revision of requirements and tests; deletion of the marking requirement of the double triangle to clarify that the products covered by the standard are not appropriate for performing live working; clarification and modification to the procedure for short-

14、circuit test: change of the number of devices submitted to test, change of the pre-conditioning time to 48 h, clarification of the test procedure for separate components; application of conformity assessment for products having completed the production phase, according to EN 61318:2008; revision of

15、existing annexes; change of normative Annexes A and C into informative Annexes C and B with a reviewed wording; deletion of Annex B, not applicable according to EN 61318:2008; deletion of Annex D, its requirements and tests being now included in the body of the standard; introduction of a new inform

16、ative Annex A on railway application; introduction of a new informative Annex D giving guidelines for determination of the equivalent r.m.s. value of a short-circuit current; revision of the list of type tests, which now appears in normative Annex E; introduction of a new normative Annex F on classi

17、fication of defects. 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) 2009-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow)

18、2011-10-01 Annex ZA has been added by CENELEC. _ BS EN 61230:2008- 3 - EN 61230:2008 Endorsement notice The text of the International Standard IEC 61230:2008 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have t

19、o be added for the standards indicated: IEC 60071-1 NOTE Harmonized as EN 60071-1:2006 (not modified). IEC 60071-2 NOTE Harmonized as EN 60071-2:1997 (not modified). IEC 60228 NOTE Harmonized as EN 60228:2005 (not modified). IEC 60743 + A1 NOTE Harmonized as EN 60743:2001 + A1:2008 (not modified). I

20、EC 60832 NOTE Harmonized as EN 60832:1996 (modified). IEC 60855 NOTE Harmonized as EN 60855:1996 (modified). IEC 60865-1 NOTE Harmonized as EN 60865-1:1993 (not modified). IEC 60909-0 NOTE Harmonized as EN 60909-0:2001 (not modified). IEC 61235 NOTE Harmonized as EN 61235:1995 (modified). IEC 61472

21、NOTE Harmonized as EN 61472:2004 (not modified). ISO 9000 NOTE Harmonized as EN ISO 9000:2005 (not modified). _ EN 61230:2008 - 4 - Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensa

22、ble for the application of this document. 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 (mo

23、d), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60060-1 1989 High-voltage test techniques - Part 1: General definitions and test requirements HD 588.1 S1 1991 IEC 60068-2-11 1981 Environmental testing - Part 2: Tests - Test Ka: Salt mist EN 60068-2-11 1999 IEC 60068-2-42 2003 E

24、nvironmental testing - Part 2-42: Tests - Test Kc: Sulphur dioxide test for contacts and connections EN 60068-2-42 2003 IEC 60811-1-4 + corr. May + A1 A2 1985 1986 1993 2001 Common test methods for insulating and sheathing materials of electric cables - Part 1: Methods for general application - Sect

25、ion 4: Tests at low temperature EN 60811-1-4 A2 1995 2001 IEC 60811-2-1 A1 1998 2001 Insulating and sheathing materials of electric and optical cables - Common test methods - Part 2-1: Methods specific to elastomeric compounds - Ozone resistance, hot set and mineral oil immersion tests EN 60811-2-1

26、A1 1998 2001 IEC 60811-3-1 A1 A2 1985 1994 2001 Common test methods for insulating and sheathing materials of electric cables - Part 3: Methods specific to PVC compounds - Section 1: Pressure test at high temperature - Tests for resistance to cracking EN 60811-3-1 A1 A2 1995 1996 2001 IEC 61138 (mod

27、) 2007 Cables for portable earthing and short-circuiting equipment EN 61138 2007 IEC 61318 2007 Live working - Conformity assessment applicable to tools, devices and equipment EN 61318 2008 IEC 61477 A1 A2 (mod) 2001 2002 2004 Live working - Minimum requirements for the utilization of tools, devices

28、 and equipment EN 61477 A1 A2 2002 2002 2005 BS EN 61230:2008 2 61230 IEC:2008 CONTENTS INTRODUCTION.7 1 Scope.8 2 Normative references .12 3 Terms and definitions .13 4 Requirements .17 4.1 General .17 4.2 Electrical rating .18 4.3 Cables for earthing and short-circuiting .18 4.3.1 Selection of cab

29、les 18 4.3.2 Earthing cables used on solidly earthed (neutral) systems.19 4.3.3 Earthing cables used on non-solidly earthed (neutral) systems19 4.4 Short-circuiting bars 19 4.5 Connections of cables to rigid parts within devices20 4.6 Clamps20 4.7 Earthing and short-circuiting device.20 4.8 Basic sa

30、fety requirements for the insulating element(s) of the insulating component 21 4.9 Marking .21 4.9.1 General .21 4.9.2 Marking on earthing and short-circuiting device .21 4.9.3 Marking on clamp 22 4.9.4 Marking on cable .22 4.9.5 Marking on other components22 4.10 Instructions for use22 5 Tests 23 5

31、.1 General .23 5.2 Verification and checking 23 5.3 Tests for the selection of cables 24 5.3.1 Cables complying with IEC 6113824 5.3.2 Cables not complying with IEC 6113824 5.4 Fatigue and humidity penetration tests on cable with end fittings.24 5.4.1 Fatigue test .24 5.4.2 Humidity penetration test

32、.26 5.5 Tension test on cable with end fittings.26 5.6 Test on clamps, permanent connection points and connections.27 5.6.1 Tests for tightening types 27 5.6.2 Tests for non-tightening types .27 5.7 Short-circuit current test 27 5.7.1 General .27 5.7.2 Preparation of test pieces29 5.7.3 Test set-ups

33、 and test arrangements.33 5.7.4 Test current, Joule-integral and duration .34 5.7.5 Documentation and evaluation of the test 35 5.7.6 Alternative means to short-circuit current test for conformity assessment during production phase.36 BS EN 61230:200861230 IEC:2008 3 5.8 Durability of marking .36 6

34、Conformity assessment 36 7 Modifications 36 Annex A (informative) Guidelines for portable equipment for earthing to be used on railway systems 37 Annex B (informative) Guidelines for earthing sticks 41 Annex C (informative) Guidelines for selection, use and maintenance of portable earthing or earthi

35、ng and short-circuiting equipment.45 Annex D (informative) Guideline for determination of the equivalent r.m.s. value of a short-time current during a short-circuit of a given duration.56 Annex E (normative) List of type tests58 Annex F (normative) Classification of defects 59 Bibliography60 Figure

36、1 Examples of portable equipment and device for installations, network and railway systems application.9 Figure 2 Connection diagrams of single and multi-phase earthing and short-circuiting devices for network application 11 Figure 3 Illustration of a three-phase earthing and short-circuiting device

37、 with short-circuiting bar and earthing cable(s) for installation and network application.12 Figure 4 Apparatus for fatigue testing with bending and twisting 25 Figure 5 Examples of multiple combinations of clamps accommodating different shapes and sizes of connection points29 Figure 6 Test set-ups

38、for testing multi-phase devices connected between rigid conductors for substations 31 Figure 7 Test set-ups for testing multi-phase short-circuiting devices for overhead lines32 Figure 8 Test set-ups for testing single-phase devices for overhead lines and for open air substations33 Figure 9 Shape of

39、 the short-circuit current during test35 Figure A.1 Test set-up for testing single phase equipment for railway systems 39 Figure B.1 Arrangement for bending tests on earthing sticks of circular cross-section43 Figure B.2 Arrangement for torsion tests on earthing sticks of circular cross-section44 Fi

40、gure C.1 Curves representing the temperature heating of different nature of conductors related to the value of the Joule-integral J2t49 Figure C.2 Determination of conductor temperature from heating.50 Figure C.3 Determination of J2t51 Figure C.4 Example of the usable region for a device 53 Figure D

41、.1 Determination of short-time current.57 Table 1 Usual lengths of earthing and short-circuiting cables for different types of installations and different voltage levels11 Table 2 Minimum cross-section of earthing cables related to the cross-section of the short-circuiting cables and/or bars on non-

42、solidly earthed (neutral) systems .19 Table 3 Tension test force on cable with end fittings 27 Table A.1 Short circuit values for copper cable with a maximum temperature of 450 C 40 BS EN 61230:2008 4 61230 IEC:2008 Table B.1 Maximum deflection .43 Table C.1 Comparison of different standard values o

43、f nominal cross-sections47 Table C.2 Short-circuit close to generator Short-circuit current values in kA for copper cables with a maximum temperature of 300C .48 Table E.1 List of type tests referred to subclauses .58 Table F.1 Classification of defects and associated requirements and tests 59 BS EN

44、 61230:200861230 IEC:2008 7 INTRODUCTION This International Standard has been prepared in accordance with the requirements of IEC 61477. An agreement may be made between manufacturer and customer for additional requirements, and tests. These additional requirements are prescribed in the customers sp

45、ecification on the basis of an acceptance procedure. BS EN 61230:2008 8 61230 IEC:2008 LIVE WORKING PORTABLE EQUIPMENT FOR EARTHING OR EARTHING AND SHORT-CIRCUITING 1 Scope This International Standard is applicable to portable equipment, with or without matching connection points, for temporary eart

46、hing or earthing and short-circuiting of electrically isolated or de-energized a.c. and d.c. installations, distribution and transmission networks, whether they are overhead or underground or of low or high voltage. NOTE Annex A provides guidance for application to railway systems. This standard cov

47、ers equipment comprising an earthing or a short-circuiting or an earthing and short-circuiting device and insulating component. An example is given in Figure 1a and Figure 1b. It also covers: earthing or short-circuiting or earthing and short-circuiting devices intended to be installed with insulati

48、ng means. An example of an earthing device is given in Figure 1c; separate components, such as conductive extension (see Figure 1b) or clamp or cable with end fittings. The performance of equipment, devices and components covered by this standard is based on electro-dynamic and electro-thermal effec

49、ts acting during short-circuit. The withstand capability of the devices and equipment is expressed by their rated values of current, time and peak factor. No rated voltage is given, but the geometrical dimensions of the equipment are also linked to the voltage of the installation. Examples of connection diagrams of earthing and short-circuiting devices are given in Figures 2 and 3. Associated usual