prEN IEC 62246-4:2022
(Main)Reed switches - Part 4: Application in conjunction with Magnetic Actuator used for Magnetic Sensing Devices
Reed switches - Part 4: Application in conjunction with Magnetic Actuator used for Magnetic Sensing Devices
Reedschalter – Teil 4: Anwendung in Kombination mit magnetischem Stellglied für magnetsensitive Schutzausrüstung (MSPE)
Stikala reed - 4. del: Uporaba v povezavi z magnetnim prožilnikom za magnetno občutljive naprave
General Information
Standards Content (sample)
SLOVENSKI STANDARD
oSIST prEN IEC 62246-4:2022
01-april-2022
Stikala reed - 4. del: Uporaba v povezavi z magnetnim prožilnikom za magnetno
občutljive naprave
Reed switches - Part 4: Application in conjunction with Magnetic Actuator used for
Magnetic Sensing DevicesTa slovenski standard je istoveten z: prEN IEC 62246-4:2022
ICS:
29.120.70 Releji Relays
oSIST prEN IEC 62246-4:2022 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN IEC 62246-4:2022
94/631/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62246-4 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2022-02-04 2022-04-29
SUPERSEDES DOCUMENTS:
94/535/CD, 94/623/CC
IEC TC 94 : ALL-OR-NOTHING ELECTRICAL RELAYS
SECRETARIAT: SECRETARY:
Austria Mr Bernhard Spalt
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 9,TC 13,TC 17,SC 17A,TC 18,TC 44,TC
61,TC 62,TC 64,TC 65,TC 69,TC 77,TC
Other TC/SCs are requested to indicate their interest, if
80,SC 121A
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel votingThe attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.TITLE:
Reed switches – Part 4: Application in conjunction with Magnetic Actuator used for
Magnetic Sensing DevicesPROPOSED STABILITY DATE: 2024
NOTE FROM TC/SC OFFICERS:
Copyright © 2021 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.---------------------- Page: 3 ----------------------
oSIST prEN IEC 62246-4:2022
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1 CONTENTS
2 FOREWORD ........................................................................................................................... 7
3 INTRODUCTION ..................................................................................................................... 9
4 1 Scope ............................................................................................................................ 10
5 2 Normative references .................................................................................................... 10
6 3 Terms and definitions .................................................................................................... 11
7 3.1 Definitions of a MSD (magnetic-sensing device) ................................................... 11
8 3.2 Elements of a MSD ............................................................................................... 12
9 3.3 Connections .......................................................................................................... 13
10 3.4 Operation of a MSD .............................................................................................. 13
11 4 Influence quantities ....................................................................................................... 14
12 5 Rated values ................................................................................................................. 14
13 5.1 General ................................................................................................................. 14
14 5.2 Rated insulation voltage (U ) ................................................................................. 15
15 5.3 Rated operating voltage (U ) ................................................................................ 15
16 5.4 Rated operating current (I ) .................................................................................. 15
17 5.5 Contact ratings ..................................................................................................... 15
18 5.6 Number of operations ........................................................................................... 15
19 5.7 Rated operating distance (S ) ............................................................................... 15
20 5.8 Climatic category .................................................................................................. 15
21 5.9 Environmental severities ....................................................................................... 15
22 5.10 Response speed ................................................................................................... 16
23 5.11 Frequency operating cycles .................................................................................. 16
24 5.12 Contact reliability .................................................................................................. 16
25 6 Types ............................................................................................................................ 16
26 7 General provisions for testing ........................................................................................ 17
27 7.1 General ................................................................................................................. 17
28 7.2 Type tests ............................................................................................................. 17
29 7.3 Routine tests ........................................................................................................ 19
30 7.4 Special tests ......................................................................................................... 19
31 8 Documentation and marking .......................................................................................... 19
32 8.1 Data ...................................................................................................................... 19
33 Repeatability (R) ............................................................................................................ 20
34 8.2 Marking ................................................................................................................. 21
35 8.3 Symbols ................................................................................................................ 21
36 9 Test and measurement procedures ................................................................................ 22
37 9.1 General ................................................................................................................. 22
38 9.2 Visual inspection and check of dimensions ........................................................... 22
39 9.2.1 Visual inspection ........................................................................................... 22
40 9.2.2 Outline dimensions ........................................................................................ 22
41 9.2.3 Mass ............................................................................................................. 22
42 9.3 Functional tests .................................................................................................... 22
43 9.3.1 General ......................................................................................................... 22
44 9.3.2 Operating distance ........................................................................................ 22
45 9.3.3 Deviation of operating distance ...................................................................... 22
46 9.3.4 Differential travel (H) ..................................................................................... 23
47 9.3.5 Repeatability (R) ............................................................................................ 23
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48 9.3.6 Magnetic interference .................................................................................... 23
49 9.3.7 Response speed (if applicable) ...................................................................... 23
50 9.3.8 Frequency operating cycles (f) (if applicable) ................................................. 25
51 9.3.9 Functional test by temperature change .......................................................... 27
52 9.3.10 Contact circuit resistance .............................................................................. 27
53 9.3.11 Temperature rise ........................................................................................... 27
54 9.4 Insulation resistance ............................................................................................. 28
55 9.4.1 Procedures .................................................................................................... 28
56 9.4.2 Requirements ................................................................................................ 28
57 9.5 Dielectric test ........................................................................................................ 28
58 9.5.1 Procedures .................................................................................................... 28
59 9.5.2 Requirements ................................................................................................ 29
60 9.6 Endurance tests .................................................................................................... 29
61 9.6.1 General ......................................................................................................... 29
62 9.6.2 Procedures of electrical endurance test ......................................................... 29
63 9.6.3 Requirements ................................................................................................ 29
64 9.6.4 Procedures of mechanical endurance test (if applicable) ............................... 30
65 9.6.5 Requirements ................................................................................................ 30
66 9.7 External connections ............................................................................................. 30
67 9.7.1 General ......................................................................................................... 30
68 9.7.2 Robustness of terminal with lead wire (if applicable) ...................................... 30
69 9.7.3 Robustness of terminal (if applicable) ............................................................ 30
70 9.7.4 Soldering terminals (if applicable) .................................................................. 31
71 9.7.5 Connector (if applicable) ................................................................................ 32
72 9.8 Mechanical stresses tests ..................................................................................... 32
73 9.8.1 General ......................................................................................................... 32
74 9.8.2 Mounting ....................................................................................................... 32
75 9.8.3 Vibration ........................................................................................................ 32
76 9.8.4 Shock ............................................................................................................ 33
77 9.8.5 Rough handling shocks (if applicable) ............................................................ 33
78 9.9 Environmental tests .............................................................................................. 34
79 9.9.1 General ......................................................................................................... 34
80 9.9.2 Cold .............................................................................................................. 34
81 9.9.3 Dry heat ........................................................................................................ 34
82 9.9.4 Damp heat, steady state ................................................................................ 35
83 9.9.5 Mould growth ................................................................................................. 35
84 9.9.6 Fluid contamination (if applicable) ................................................................. 35
85 9.9.7 Salt mist (if applicable) .................................................................................. 36
86 9.10 Enclosure protection tests ..................................................................................... 36
87 9.10.1 General ......................................................................................................... 36
88 9.10.2 Degree of enclosure ...................................................................................... 36
89 9.10.3 Pressurized water (if applicable) .................................................................... 36
90 9.11 Sealing (if applicable) ........................................................................................... 37
91 9.11.1 General ......................................................................................................... 37
92 9.11.2 Procedures .................................................................................................... 37
93 9.11.3 Requirements ................................................................................................ 37
94 9.12 Heat and fire resistance ........................................................................................ 37
95 9.12.1 General ......................................................................................................... 37
96 9.12.2 Glow-wire ...................................................................................................... 37
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97 9.12.3 Ball pressure ................................................................................................. 38
98 9.13 Making and breaking capacity (if applicable) ......................................................... 39
99 9.13.1 General ......................................................................................................... 39
100 9.13.2 Procedures .................................................................................................... 39
101 9.13.3 Requirements ................................................................................................ 39
102 9.14 Conditional short-circuit current test (if applicable) ................................................ 39
103 9.14.1 General ......................................................................................................... 39
104 9.14.2 Procedures .................................................................................................... 39
105 9.14.3 Requirements ................................................................................................ 39
106 9.15 Contact reliability test ........................................................................................... 40
107 9.15.1 General ......................................................................................................... 40
108 9.15.2 Procedures .................................................................................................... 40
109 9.15.3 Requirements ................................................................................................ 40
110 9.16 Electromagnetic compatibility (EMC) ..................................................................... 40
111 Annex A (informative) Explanations regarding of reed contact magnetic sensor –
112 Example ........................................................................................................................ 41
113 Annex B (informative) Explanations regarding operation of reed contact magnetic
114 sensor – example .......................................................................................................... 42
115 Annex C (informative) Work principles regarding sensing distances .................................... 43
116 C.1 General ................................................................................................................. 43
117 C.2 Reed contact magnetic sensor with magnetic actuator set .......... 43
118 C.2.1 Operation ...................................................................................................... 43
119 C.2.2 Axial approach ............................................................................................... 43
120 C.2.3 Lateral approach ........................................................................................... 44
121 C.3 Reed contact magnetic sensor with magnetic actuator set ............ 44
122 C.3.1 Operation ...................................................................................................... 44
123 C.3.2 Specified directions ....................................................................................... 45
124 C.4 Reed contact magnetic sensor with magnetic actuator set < fork type> ................. 45
125 C.4.1 Operation ...................................................................................................... 45
126 C.4.2 Specified directions ....................................................................................... 45
127 C.5 Reed contact magnetic sensor with magnetic actuator set, ........... 46
128 C.5.1 Operation ...................................................................................................... 46
129 C.5.2 Specified directions ....................................................................................... 46
130 C.6 Reed contact magnetic sensor with magnetic actuator set, ................ 46
131 C.6.1 Operation ...................................................................................................... 46
132 C.6.2 Specific directions ......................................................................................... 47
133 Annex D (informative) Risk assessment .............................................................................. 48
134 D.1 General ................................................................................................................. 48
135 D.2 Risk assessment procedure .................................................................................. 48
136 D.3 Achieving tolerable risk ......................................................................................... 49
137 D.4 An application of risk assessment procedures (proposal for the user) ................... 51
138 Annex E (informative) Test procedures regarding response speed ...................................... 53
139 General ................................................................................................................. 53
140 E.2 Test circuit ............................................................................................................ 53
141 E.3 Test sequence ...................................................................................................... 53
142 Annex F (informative) Special tests ..................................................................................... 54
143 F.1 General ................................................................................................................. 54
144 F.2 Functional tests .................................................................................................... 54
145 F.3 Functional tests and mechanical durability ............................................................ 54
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146 F.4 Vibration and shock tests of special requirements for applications ........................ 54
147 F.5 Explosion proofness .............................................................................................. 54
148 F.5.1 General ......................................................................................................... 54
149 F.5.2 Procedures .................................................................................................... 54
150 F.5.3 Requirements ................................................................................................ 54
151 Bibliography .......................................................................................................................... 56
152153 Figure 1 – Methods for measuring the response speed ......................................................... 24
154 Figure 2 – Output signal........................................................................................................ 24
155 Figure 3 – Methods for measuring the operating frequency (f) .............................................. 26
156 Figure 4 – Output signal during the measuring of operating frequency (f) .............................. 26
157 Figure 5 – Ball pressure test apparatus ................................................................................. 39
158 Figure A.1 – Driven method of reed contact magnetic sensor by permanent magnetic-
159 actuator ................................................................................................................................ 41
160 Figure B.1 – Diagram explaining terms related to operation by magnetic-actuator ................. 42
161 Figure C.1 – Operating approaches ...................................................................................... 43
162 Figure C.2 – Sensing distances referred axial approach ....................................................... 44
163 Figure C.3 – Sensing distances referred lateral approach ..................................................... 44
164 Figure C.4 – Sensing distances and contact states referred specified direction ..................... 45
165 Figure C.5 – Sensing distances referred specified direction .................................................. 45
166 Figure C.6 – Sensing distances ............................................................................................ 46
167 Figure C.7 – Sensing distances on liquid level ...................................................................... 47
168 Figure D.1 – Iterative process of risk assessment and risk reduction .................................... 48
169 Figure D.2 – Risk reduction................................................................................................... 50
170 Figure E.1 – Test circuit – Example ...................................................................................... 53
171 Figure E.2 – Measurement data by oscilloscope – Example .................................................. 53
172173 Table 1 – Reference values of influence quantities ............................................................... 14
174 Table 2 – Rated insulation voltage ........................................................................................ 15
175 Table 3 – Rated operating voltage ........................................................................................ 15
176 Table 4 – Rated operating distance ....................................................................................... 15
177 Table 5 – Rated maximum working pressure ......................................................................... 15
178 Table 6 – Examples of output functions of MSD .................................................................... 16
179 Table 7 – Type testing .......................................................................................................... 18
180 Table 8 – Routine tests ......................................................................................................... 19
181 Table 9 – Required data ....................................................................................................... 19
182 Table 10 – Symbols .............................................................................................................. 21
183 Table 11 – Examples for indication of rated values ............................................................... 21
184 Table 12 – Deviation of operating distance ........................................................................... 22
185 Table 13 – Remanence value ................................................................................................ 23
186 Table 14 – Typical rated speeds ........................................................................................... 24
187 Table 15 – Typical operating times of switching loads ........................................................... 24
188 Table 16 – Recommended frequency operating cycles .......................................................... 27
189 Table 17 – Function test by temperature change ................................................................... 27
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190 Table 18 – Deviation of operating distance ........................................................................... 27
191 Table 19 – Test current ......................................................................................................... 27
192 Table 20 – Rated voltage of insulation resistance test........................................................... 28
193 Table 21 – Dielectric test voltage .......................................................................................... 28
194 Table 22 – Minimum clearances and creepage distances ...................................................... 29
195 Table 23 – Number of cycles for endurance test ................................................................... 29
196 Table 24 – Criteria for electrical endurance tests .................................................................. 30
197 Table 25 – Torque severity ................................................................................................... 31
198 Table 26 – Value of applied force for test U ...................................................................... 31
199 Table 27 – Vibration test ....................................................................................................... 32
200 Table 28 – Shock test ........................................................................................................... 33
201 Table D.1 – Examples for the relation between failure mode, consequences and202 hazard .................................................................................................................................. 51
203 Table D.2 – Severity of harm ................................................................................................ 51
204 Table D.3 – Probability of harm ............................................................................................. 52
205 Table D.4 – Risk category ..................................................................................................... 52
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207 INTERNATIONAL ELECTROTECHNICAL COMMISSION
208 ____________
209
210 REED SWITCHES –
211
212 Part 4: Application in conjunction with Magnetic Actuator
213 used for Magnetic Sensing Devices
214
215 FOREWORD
216 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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...
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