BS EN 61481-2:2014 – TC:2020 Edition
$280.87
Tracked Changes. Live working. Phase comparators – Resistive type to be used for voltages from 1 kV to 36 kV a.c.
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 199 |
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°); – 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.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 124 | English CONTENTS |
| 128 | INTRODUCTION |
| 129 | 1 Scope 2 Normative references |
| 130 | 3 Terms and definitions |
| 134 | 4 Requirements 4.1 Indication 4.2 Functional requirements 4.2.1 Clear indication |
| 136 | 4.2.2 Clear perceptibility 4.2.3 Temperature and humidity dependence of the indication 4.2.4 Frequency dependence Tables Table 1 – Climatic condition ranges |
| 137 | 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 |
| 138 | 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 |
| 140 | 4.4.3 Dimensions, construction Figures Figure 1 – Illustration of different elements of a phase comparator Table 2 – Minimum length of the insulating element (Li) of a phase comparator as a complete device |
| 141 | 4.4.4 Grip force and deflection 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 |
| 142 | 4.4.5 Vibration resistance 4.4.6 Drop resistance 4.4.7 Shock resistance 4.5 Marking 4.6 Instructions for use |
| 143 | 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 |
| 144 | 5.1.4 Type test |
| 145 | 5.1.5 Test methods 5.2 Function tests 5.2.1 Description of the test set-up and general pass criteria |
| 147 | Figure 3 – Test set-up for clear indication with the ball electrode in front of its ring electrode |
| 148 | Figure 4 – Test set-up for clear indication with the ball electrode behind its ring electrode |
| 149 | Table 3 – Dimensioning of the ball and ring test set-up |
| 150 | Figure 5 – Example of positioning of a pole of the phase comparator in relation to a ball and ring test arrangement Figure 6 – Examples of suitable means for ensuring appropriate contact between a contact electrode and the ball electrode |
| 151 | 5.2.2 Clear indication |
| 152 | Table 4 – Test series and conditions for clear indication |
| 153 | 5.2.3 Electromagnetic compatibility (EMC) 5.2.4 Influence of electric interference fields |
| 155 | Table 5 – Test series and conditions for influence of electric interference fields |
| 156 | 5.2.5 Clear perceptibility |
| 157 | Figure 7 – Test set-up for clear perceptibility of visual indication |
| 159 | Figure 8 – Test set-up for clear perceptibility of audible indication |
| 160 | 5.2.6 Frequency dependence 5.2.7 Response time 5.2.8 Power source dependability |
| 161 | 5.2.9 Check of testing element 5.2.10 Time rating |
| 162 | 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 |
| 163 | Figure 9 – Test arrangements and dimensions of the bars for protection against bridging Table 6 – Distance d1 for the bridging test set-up |
| 164 | Figure 10 – Electrical connection of the bars Figure 11 – Surface stress test |
| 165 | Figure 12 – Radial and surface stress test |
| 166 | Figure 13 – Bridging test on the connecting lead |
| 167 | 5.3.3 Protection against bridging for outdoor type phase comparator Table 7 – Dimensions for the concentric rings and band electrodes |
| 168 | 5.3.4 Spark resistance Figure 14 – Test arrangement for testing bridging protection of outdoor type phase comparator |
| 169 | 5.3.5 Leakage current for phase comparator as a complete device |
| 170 | Figure 15 – Arrangement for leakage current test under dry conditionsfor phase comparator as a complete device |
| 171 | Figure 16 – Arrangement for leakage current tests under wet conditions for phase comparator as a complete device |
| 172 | 5.3.6 Dielectric strength of connecting lead Figure 17 – Test set up for pressure load application |
| 173 | 5.3.7 Maximum current in case of misuse 5.4 Mechanical tests 5.4.1 Visual and dimensional inspection |
| 174 | 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 – Test for grip force |
| 175 | Figure 19 – Test set-up for the robustness of connecting lead and connections |
| 176 | 5.4.4 Vibration resistance 5.4.5 Drop resistance |
| 177 | 5.4.6 Shock resistance Figure 20 – Drop resistance test – Diagonal position |
| 178 | 5.4.7 Climatic resistance Figure 21 – Curve of test cycle for climatic resistance |
| 179 | 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) |
| 180 | 6 Conformity assessment of phase comparators having completed the production phase 7 Modifications |
| 181 | Annex A (normative) Instructions for use |
| 183 | Annex B (normative) Suitable for live working; double triangle (IEC 60417 – 5216 (2002-10)) |
| 184 | Annex C (normative) Chronology of type tests Table C.1 – Sequential order for performing type testsa |
| 185 | Table C.2 – Type tests out of sequence |
| 186 | Annex D (normative) Classification of defects and tests to be allocated Table D.1 – Classification of defects and associated requirements and tests |
| 188 | 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 – Insulation element of a pole of a phase comparator as a complete device |
| 189 | Figure E.2 – Example of positioning of a pole of a phase comparator in contact with a live part without obstacles from other live parts |
| 190 | Figure E.3 – Example of incorrect positioning of a pole of a phase comparator with the limit mark between two live parts |
| 191 | E.3 Situation when using a phase comparator as a separate device Figure E.4 – 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 – Recommended minimum lengths from the limit mark to the contact electrode (Ai) |
| 193 | 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 |
| 194 | Annex F (informative) Rationale for the classification of defects Table F.1 – Rationale for the classification of defects |
| 196 | Annex G (informative) In-service care Table G.1 – In-service testing |
| 197 | Bibliography |
Related products
-
BS EN 61481-2:2014:2015 Edition
Live working. Phase comparators – Resistive type to be used for voltages from 1 kV…
