IEC 61481-2:2014 is applicable to portable phase comparators of resistive type to be used on electrical systems for voltages from 1 kV a.c. to 36 kV a.c. and frequencies of 50 Hz and\/or 60 Hz. This standard is applicable to phase comparators of resistive type used in contact with the bare conductive parts to be compared as a complete device including its insulating element or as a separate device, adaptable to an insulating stick which, as a separate tool, is not covered by this standard. A device that is designed to provide other functions than phase comparison is a different device and is not covered by this standard. For example a device designed to be also used as a voltage detector is not covered by this standard. This first edition, together with the first edition of IEC 61481-1, cancels and replaces the first edition of IEC 61481 published in 2001, Amendment 1:2002 and Amendment 2:2004. This edition constitutes a technical revision which includes the following major changes: – split of the standard in two parts; – review of the requirements for indication; – elimination of class C (+\/- 110\u00b0); – introduction of a requirement for a new marking ‘LU’ for limited use; – increase of the specified range of voltage fluctuation in a network for clear indication; – and revision of the existing annexes.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 124<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 128<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 129<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 130<\/td>\n | 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 134<\/td>\n | 4 Requirements 4.1 Indication 4.2 Functional requirements 4.2.1 Clear indication <\/td>\n<\/tr>\n | ||||||
| 136<\/td>\n | 4.2.2 Clear perceptibility 4.2.3 Temperature and humidity dependence of the indication 4.2.4 Frequency dependence Tables Table 1 \u2013 Climatic condition ranges <\/td>\n<\/tr>\n | ||||||
| 137<\/td>\n | 4.2.5 Response time 4.2.6 Power source dependability 4.2.7 Testing element 4.2.8 Time rating 4.3 Electrical requirements 4.3.1 Insulating material 4.3.2 Protection against bridging 4.3.3 Resistance against sparking <\/td>\n<\/tr>\n | ||||||
| 138<\/td>\n | 4.3.4 Resistive element 4.3.5 Insulating element of phase comparator as a complete device 4.3.6 Circuit current 4.3.7 Indicator casing 4.3.8 Insulation of the connecting lead 4.4 Mechanical requirements 4.4.1 General 4.4.2 Design <\/td>\n<\/tr>\n | ||||||
| 140<\/td>\n | 4.4.3 Dimensions, construction Figures Figure 1 \u2013 Illustration of different elements of a phase comparator Table 2 \u2013 Minimum length of the insulating element (Li) of a phase comparator as a complete device <\/td>\n<\/tr>\n | ||||||
| 141<\/td>\n | 4.4.4 Grip force and deflection Figure 2 \u2013 Location of allowed conductive parts within the minimum length of the insulating element of a pole of a phase comparator as a complete device <\/td>\n<\/tr>\n | ||||||
| 142<\/td>\n | 4.4.5 Vibration resistance 4.4.6 Drop resistance 4.4.7 Shock resistance 4.5 Marking 4.6 Instructions for use <\/td>\n<\/tr>\n | ||||||
| 143<\/td>\n | 4.7 Requirements in the case of reasonably foreseeable misuse during live working 4.7.1 Voltage selection 4.7.2 Frequency selection 5 Tests 5.1 General 5.1.1 Testing provisions 5.1.2 Atmospheric conditions 5.1.3 Tests under wet conditions <\/td>\n<\/tr>\n | ||||||
| 144<\/td>\n | 5.1.4 Type test <\/td>\n<\/tr>\n | ||||||
| 145<\/td>\n | 5.1.5 Test methods 5.2 Function tests 5.2.1 Description of the test set-up and general pass criteria <\/td>\n<\/tr>\n | ||||||
| 147<\/td>\n | Figure 3 \u2013 Test set-up for clear indication with the ball electrode in front of its ring electrode <\/td>\n<\/tr>\n | ||||||
| 148<\/td>\n | Figure 4 \u2013 Test set-up for clear indication with the ball electrode behind its ring electrode <\/td>\n<\/tr>\n | ||||||
| 149<\/td>\n | Table 3 \u2013 Dimensioning of the ball and ring test set-up <\/td>\n<\/tr>\n | ||||||
| 150<\/td>\n | Figure 5 \u2013 Example of positioning of a pole of the phase comparator in relation to a ball and ring test arrangement Figure 6 \u2013 Examples of suitable means for ensuring appropriate contact between a contact electrode and the ball electrode <\/td>\n<\/tr>\n | ||||||
| 151<\/td>\n | 5.2.2 Clear indication <\/td>\n<\/tr>\n | ||||||
| 152<\/td>\n | Table 4 \u2013 Test series and conditions for clear indication <\/td>\n<\/tr>\n | ||||||
| 153<\/td>\n | 5.2.3 Electromagnetic compatibility (EMC) 5.2.4 Influence of electric interference fields <\/td>\n<\/tr>\n | ||||||
| 155<\/td>\n | Table 5 \u2013 Test series and conditions for influence of electric interference fields <\/td>\n<\/tr>\n | ||||||
| 156<\/td>\n | 5.2.5 Clear perceptibility <\/td>\n<\/tr>\n | ||||||
| 157<\/td>\n | Figure 7 \u2013 Test set-up for clear perceptibility of visual indication <\/td>\n<\/tr>\n | ||||||
| 159<\/td>\n | Figure 8 \u2013 Test set-up for clear perceptibility of audible indication <\/td>\n<\/tr>\n | ||||||
| 160<\/td>\n | 5.2.6 Frequency dependence 5.2.7 Response time 5.2.8 Power source dependability <\/td>\n<\/tr>\n | ||||||
| 161<\/td>\n | 5.2.9 Check of testing element 5.2.10 Time rating <\/td>\n<\/tr>\n | ||||||
| 162<\/td>\n | 5.3 Dielectric tests 5.3.1 Insulating material for tubes and rods 5.3.2 Protection against bridging for indoor\/outdoor type phase comparator <\/td>\n<\/tr>\n | ||||||
| 163<\/td>\n | Figure 9 \u2013 Test arrangements and dimensions of the bars for protection against bridging Table 6 \u2013 Distance d1 for the bridging test set-up <\/td>\n<\/tr>\n | ||||||
| 164<\/td>\n | Figure 10 \u2013 Electrical connection of the bars Figure 11 \u2013 Surface stress test <\/td>\n<\/tr>\n | ||||||
| 165<\/td>\n | Figure 12 \u2013 Radial and surface stress test <\/td>\n<\/tr>\n | ||||||
| 166<\/td>\n | Figure 13 \u2013 Bridging test on the connecting lead <\/td>\n<\/tr>\n | ||||||
| 167<\/td>\n | 5.3.3 Protection against bridging for outdoor type phase comparator Table 7 \u2013 Dimensions for the concentric rings and band electrodes <\/td>\n<\/tr>\n | ||||||
| 168<\/td>\n | 5.3.4 Spark resistance Figure 14 \u2013 Test arrangement for testing bridging protection of outdoor type phase comparator <\/td>\n<\/tr>\n | ||||||
| 169<\/td>\n | 5.3.5 Leakage current for phase comparator as a complete device <\/td>\n<\/tr>\n | ||||||
| 170<\/td>\n | Figure 15 \u2013 Arrangement for leakage current test under dry conditionsfor phase comparator as a complete device <\/td>\n<\/tr>\n | ||||||
| 171<\/td>\n | Figure 16 \u2013 Arrangement for leakage current tests under wet conditions for phase comparator as a complete device <\/td>\n<\/tr>\n | ||||||
| 172<\/td>\n | 5.3.6 Dielectric strength of connecting lead Figure 17 \u2013 Test set up for pressure load application <\/td>\n<\/tr>\n | ||||||
| 173<\/td>\n | 5.3.7 Maximum current in case of misuse 5.4 Mechanical tests 5.4.1 Visual and dimensional inspection <\/td>\n<\/tr>\n | ||||||
| 174<\/td>\n | 5.4.2 Grip force and deflection for phase comparator as a complete device 5.4.3 Robustness of connecting lead and connections Figure 18 \u2013 Test for grip force <\/td>\n<\/tr>\n | ||||||
| 175<\/td>\n | Figure 19 \u2013 Test set-up for the robustness of connecting lead and connections <\/td>\n<\/tr>\n | ||||||
| 176<\/td>\n | 5.4.4 Vibration resistance 5.4.5 Drop resistance <\/td>\n<\/tr>\n | ||||||
| 177<\/td>\n | 5.4.6 Shock resistance Figure 20 \u2013 Drop resistance test \u2013 Diagonal position <\/td>\n<\/tr>\n | ||||||
| 178<\/td>\n | 5.4.7 Climatic resistance Figure 21 \u2013 Curve of test cycle for climatic resistance <\/td>\n<\/tr>\n | ||||||
| 179<\/td>\n | 5.4.8 Durability of markings 5.5 Test for reasonably foreseeable misuse during live working 5.5.1 Voltage selection (where relevant) 5.5.2 Frequency selection (where relevant) <\/td>\n<\/tr>\n | ||||||
| 180<\/td>\n | 6 Conformity assessment of phase comparators having completed the production phase 7 Modifications <\/td>\n<\/tr>\n | ||||||
| 181<\/td>\n | Annex A (normative) Instructions for use <\/td>\n<\/tr>\n | ||||||
| 183<\/td>\n | Annex B (normative) Suitable for live working; double triangle (IEC 60417 \u2013 5216 (2002-10)) <\/td>\n<\/tr>\n | ||||||
| 184<\/td>\n | Annex C (normative) Chronology of type tests Table C.1 \u2013 Sequential order for performing type testsa <\/td>\n<\/tr>\n | ||||||
| 185<\/td>\n | Table C.2 \u2013 Type tests out of sequence <\/td>\n<\/tr>\n | ||||||
| 186<\/td>\n | Annex D (normative) Classification of defects and tests to be allocated Table D.1 \u2013 Classification of defects and associated requirements and tests <\/td>\n<\/tr>\n | ||||||
| 188<\/td>\n | Annex E (informative) Information and guidelines on the use of the limit mark and of a contact electrode extension E.1 General E.2 Situation when using a phase comparator as a complete device Figure E.1 \u2013 Insulation element of a pole of a phase comparator as a complete device <\/td>\n<\/tr>\n | ||||||
| 189<\/td>\n | Figure E.2 \u2013 Example of positioning of a pole of a phase comparator in contact with a live part without obstacles from other live parts <\/td>\n<\/tr>\n | ||||||
| 190<\/td>\n | Figure E.3 \u2013 Example of incorrect positioning of a pole of a phase comparator with the limit mark between two live parts <\/td>\n<\/tr>\n | ||||||
| 191<\/td>\n | E.3 Situation when using a phase comparator as a separate device Figure E.4 \u2013 Usual ways of managing the selection or the use of the phase comparator for maintaining the insulation distance between the limit mark and the hand guard Table E.1 \u2013 Recommended minimum lengths from the limit mark to the contact electrode (Ai) <\/td>\n<\/tr>\n | ||||||
| 193<\/td>\n | Figure E.5 \u2013 Usual ways of managing the use of the phase comparator as a separate device for assuring the appropriate insulation for the worker <\/td>\n<\/tr>\n | ||||||
| 194<\/td>\n | Annex F (informative) Rationale for the classification of defects Table F.1 \u2013 Rationale for the classification of defects <\/td>\n<\/tr>\n | ||||||
| 196<\/td>\n | Annex G (informative) In-service care Table G.1 \u2013 In-service testing <\/td>\n<\/tr>\n | ||||||
| 197<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Tracked Changes. Live working. Phase comparators – Resistive type to be used for voltages from 1 kV to 36 kV a.c.<\/b><\/p>\n |