1、 IEC 61481-2 Edition 1.0 2014-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Live working Phase comparators Part 2: Resistive type to be used for voltages from 1 kV to 36 kV a.c. Travaux sous tension Comparateurs de phase Partie 2: Type rsistif pour usage sur des tensions alternatives de 1 kV 36 kV
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19、. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 61481-2 Edition 1.0 2014-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Live working Phase comparators Part 2: Resistive type to be u
20、sed for voltages from 1 kV to 36 kV a.c. Travaux sous tension Comparateurs de phase Partie 2: Type rsistif pour usage sur des tensions alternatives de 1 kV 36 kV INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XC ICS 13.260; 29.240.20; 29.260.99 PRICE CODE CODE P
21、RIX ISBN 978-2-8322-1878-5 Registered trademark 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 c
22、ette publication via un distributeur agr. colour inside 2 IEC 61481-2:2014 IEC 2014 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope 9 2 Normative references 9 3 Terms and definitions 10 4 Requirements 14 4.1 Indication 14 4.2 Functional requirements 14 4.2.1 Clear indication . 14 4.2.2 Clear percepti
23、bility . 16 4.2.3 Temperature and humidity dependence of the indication 16 4.2.4 Frequency dependence . 16 4.2.5 Response time . 17 4.2.6 Power source dependability . 17 4.2.7 Testing element . 17 4.2.8 Time rating 17 4.3 Electrical requirements . 17 4.3.1 Insulating material . 17 4.3.2 Protection a
24、gainst bridging 17 4.3.3 Resistance against sparking 17 4.3.4 Resistive element 18 4.3.5 Insulating element of phase comparator as a complete device . 18 4.3.6 Circuit current 18 4.3.7 Indicator casing . 18 4.3.8 Insulation of the connecting lead . 18 4.4 Mechanical requirements 18 4.4.1 General . 1
25、8 4.4.2 Design . 18 4.4.3 Dimensions, construction . 20 4.4.4 Grip force and deflection . 21 4.4.5 Vibration resistance . 22 4.4.6 Drop resistance . 22 4.4.7 Shock resistance . 22 4.5 Marking . 22 4.6 Instructions for use . 22 4.7 Requirements in the case of reasonably foreseeable misuse during live
26、 working . 23 4.7.1 Voltage selection . 23 4.7.2 Frequency selection 23 5 Tests . 23 5.1 General . 23 5.1.1 Testing provisions . 23 5.1.2 Atmospheric conditions 23 5.1.3 Tests under wet conditions 23 5.1.4 Type test . 24 5.1.5 Test methods . 25 IEC 61481-2:2014 IEC 2014 3 5.2 Function tests . 25 5.2
27、.1 Description of the test set-up and general pass criteria 25 5.2.2 Clear indication . 31 5.2.3 Electromagnetic compatibility (EMC) . 33 5.2.4 Influence of electric interference fields. 33 5.2.5 Clear perceptibility . 36 5.2.6 Frequency dependence . 40 5.2.7 Response time . 40 5.2.8 Power source de
28、pendability . 40 5.2.9 Check of testing element . 41 5.2.10 Time rating 41 5.3 Dielectric tests 42 5.3.1 Insulating material for tubes and rods 42 5.3.2 Protection against bridging for indoor/outdoor type phase comparator . 42 5.3.3 Protection against bridging for outdoor type phase comparator 47 5.
29、3.4 Spark resistance 48 5.3.5 Leakage current for phase comparator as a complete device . 49 5.3.6 Dielectric strength of connecting lead 52 5.3.7 Maximum current in case of misuse . 53 5.4 Mechanical tests . 53 5.4.1 Visual and dimensional inspection . 53 5.4.2 Grip force and deflection for phase c
30、omparator as a complete device 54 5.4.3 Robustness of connecting lead and connections 54 5.4.4 Vibration resistance . 56 5.4.5 Drop resistance . 56 5.4.6 Shock resistance . 57 5.4.7 Climatic resistance 58 5.4.8 Durability of markings 59 5.5 Test for reasonably foreseeable misuse during live working
31、59 5.5.1 Voltage selection (where relevant) . 59 5.5.2 Frequency selection (where relevant) 59 6 Conformity assessment of phase comparators having completed the production phase 60 7 Modifications . 60 Annex A (normative) Instructions for use . 61 Annex B (normative) Suitable for live working; doubl
32、e triangle (IEC 60417 5216 (2002-10) . 63 Annex C (normative) Chronology of type tests . 64 Annex D (normative) Classification of defects and tests to be allocated . 66 Annex E (informative) Information and guidelines on the use of the limit mark and of a contact electrode extension 68 E.1 General .
33、 68 E.2 Situation when using a phase comparator as a complete device . 68 E.3 Situation when using a phase comparator as a separate device 71 Annex F (informative) Rationale for the classification of defects. 74 Annex G (informative) In-service care 76 Bibliography 77 4 IEC 61481-2:2014 IEC 2014 Fig
34、ure 1 Illustration of different elements of a phase comparator . 20 Figure 2 Location of allowed conductive parts within the minimum length of the insulating element of a pole of a phase comparator as a complete device . 21 Figure 3 Test set-up for clear indication with the ball electrode in front o
35、f its ring electrode 27 Figure 4 Test set-up for clear indication with the ball electrode behind its ring electrode 28 Figure 5 Example of positioning of a pole of the phase comparator in relation to a ball and ring test arrangement 30 Figure 6 Examples of suitable means for ensuring appropriate con
36、tact between a contact electrode and the ball electrode 30 Figure 7 Test set-up for clear perceptibility of visual indication 37 Figure 8 Test set-up for clear perceptibility of audible indication 39 Figure 9 Test arrangements and dimensions of the bars for protection against bridging 43 Figure 10 E
37、lectrical connection of the bars 44 Figure 11 Surface stress test . 44 Figure 12 Radial and surface stress test 45 Figure 13 Bridging test on the connecting lead . 46 Figure 14 Test arrangement for testing bridging protection of outdoor type phase comparator . 48 Figure 15 Arrangement for leakage cu
38、rrent test under dry conditions for phase comparator as a complete device 50 Figure 16 Arrangement for leakage current tests under wet conditions for phase comparator as a complete device 51 Figure 17 Test set up for pressure load application 52 Figure 18 Test for grip force . 54 Figure 19 Test set-
39、up for the robustness of connecting lead and connections 55 Figure 20 Drop resistance test Diagonal position 57 Figure 21 Curve of test cycle for climatic resistance . 58 Figure E.1 Insulation element of a pole of a phase comparator as a complete device . 68 Figure E.2 Example of positioning of a po
40、le of a phase comparator in contact with a live part without obstacles from other live parts . 69 Figure E.3 Example of incorrect positioning of a pole of a phase comparator with the limit mark between two live parts 70 Figure E.4 Usual ways of managing the selection or the use of the phase comparat
41、or for maintaining the insulation distance between the limit mark and the hand guard . 71 Figure E.5 Usual ways of managing the use of the phase comparator as a separate device for assuring the appropriate insulation for the worker . 73 Table 1 Climatic condition ranges 16 Table 2 Minimum length of
42、the insulating element (L i ) of a phase comparator as a complete device 20 Table 3 Dimensioning of the ball and ring test set-up . 29 Table 4 Test series and conditions for clear indication . 32 Table 5 Test series and conditions for influence of electric interference fields 35 Table 6 Distance d 1
43、for the bridging test set-up . 43 IEC 61481-2:2014 IEC 2014 5 Table 7 Dimensions for the concentric rings and band electrodes 47 Table C.1 Sequential order for performing type tests a64 Table C.2 Type tests out of sequence 65 Table D.1 Classification of defects and associated requirements and tests
44、66 Table E.1 Recommended minimum lengths from the limit mark to the contact electrode (A i ) 71 Table F.1 Rationale for the classification of defects . 74 Table G.1 In-service testing . 76 6 IEC 61481-2:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ LIVE WORKING PHASE COMPARATORS Part 2:
45、Resistive type to be used for voltages from 1 kV to 36 kV a.c. 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
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