BS EN 60947-5-1:2017 – TC:2020 Edition
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Tracked Changes. Low-voltage switchgear and controlgear – Control circuit devices and switching elements. Electromechanical control circuit devices
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 251 |
IEC 60947-5-1:2016 is available as /2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60947-5-1:2016 applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear. It applies to control circuit devices having a rated voltage not exceeding 1 000 V a.c. (at a frequency not exceeding 1 000 Hz) or 600 V d.c. This fourth edition cancels and replaces the third edition published in 2003 and its Amendment 1:2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) update of normative references; b) update and restructuration of subclauses in 7.1; c) addition of material requirements and test; d) udpate of EMC requirements; e) clarification of requirements and update of 8.2; f) addition of requirements for screwless-type clamping units; g) udpate of existing Tables 4 and 5; h) addition of new Tables 6, 7, 8 and 9; i) addition of a new Figure 10 ; j) addition of a new Annex N. This publication is to be read in conjunction with /2. The contents of the corrigendum of July 2016 have been included in this copy.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 137 | undefined |
| 146 | English CONTENTS |
| 153 | FOREWORD |
| 155 | 1 General 1.1 Scope and object |
| 156 | 1.2 Normative references |
| 158 | 2 Terms and definitions |
| 160 | 2.1 Basic terms and definitions |
| 161 | 2.2 Control switches |
| 164 | 2.3 Parts of control switches |
| 166 | 2.4 Operation of control switches 2.4.1 Operation of contactor relays 2.4.2 Operation of pilot switches |
| 167 | 2.4.3 Operation of rotary switches |
| 168 | 2.4.4 Operation of mechanically operated control switches |
| 169 | 3 Classification 3.1 Contact elements 3.2 Control switches 3.3 Control circuit devices 3.4 Time delay switching elements 3.5 Control switch mounting 4 Characteristics 4.1 Summary of characteristics 4.1.1 General |
| 170 | 4.1.2 Operation of a control switch 4.2 Type of control circuit device or switching element 4.2.1 Kind of control circuit device 4.2.2 Kind of switching elements 4.2.3 Number of poles 4.2.4 Kind of current |
| 171 | 4.2.5 Interrupting medium 4.2.6 Operating conditions 4.3 Rated and limiting values for switching elements 4.3.1 General 4.3.2 Rated voltages (of a switching element) |
| 172 | 4.3.3 Currents 4.3.4 Rated frequency 4.3.5 Vacant 4.3.6 Normal and abnormal load characteristics 4.3.7 Shortcircuit characteristics 4.4 Utilization categories for switching elements |
| 173 | 4.5 Vacant 4.6 Vacant 4.7 Vacant 4.8 Vacant 4.9 Vacant 4.10 Electrically separated contact elements 4.11 Actuating quantities for pilot switches 4.12 Pilot switches having two or more contact elements 5 Product information 5.1 Nature of information Tables Table 1 – Utilization categories for switching elements |
| 174 | 5.2 Marking 5.2.1 General 5.2.2 Terminal identification and marking |
| 175 | 5.2.3 Functional markings 5.2.4 Emergency stop 5.2.5 Operating diagram 5.2.6 Time delay markings 5.3 Instructions for installation, operation and maintenance |
| 176 | 5.4 Additional information 6 Normal service, mounting and transport conditions 6.3.1 Mounting of single hole mounted devices Table 2 – Mounting hole diameter and dimensions of the key recess (if any) |
| 177 | 7 Constructional and performance requirements 7.1 Constructional requirements 7.1.1 General 7.1.2 Materials Table 3 – Preferred minimum distances between centres of mounting holes |
| 178 | 7.1.3 Current-carrying parts and their connections 7.1.4 Clearances and creepage distances |
| 179 | 7.1.7 Conditions for control switches suitable for isolation 7.1.8 Terminals 7.1.14 Class II control circuit devices 7.1.15 Requirements for control devices with integrally connected cables 7.2 Performance requirements 7.2.3 Dielectric properties 7.2.4 Ability to make and break under normal and abnormal load conditions |
| 180 | 7.2.5 Conditional short-circuit current 7.2.6 Vacant 7.2.7 Additional requirements for control switches suitable for isolation 7.2.8 Maximum recovery time 7.3 Electromagnetic compatibility (EMC) 7.3.1 General |
| 181 | 7.3.2 Immunity |
| 182 | 7.3.3 Emission |
| 183 | Table 4 – Verification of making and breaking capacities of switching elements under normal conditions corresponding to the utilization categories |
| 184 | Table 5 – Verification of making and breaking capacities of switching elements under abnormal conditions corresponding to the utilization categories Table 6 – Test conditions for glow-wire test |
| 185 | Table 7 – Acceptance criteria |
| 186 | Table 8 – Immunity tests |
| 187 | 8 Tests 8.1 Kinds of test 8.1.1 General 8.1.2 Type tests 8.1.3 Routine tests |
| 188 | 8.1.4 Sampling tests 8.1.5 Special tests 8.2 Compliance with constructional requirements 8.2.1 Materials 8.2.2 Equipment |
| 189 | 8.2.3 Enclosures for equipment 8.2.4 Mechanical and electrical properties of terminals |
| 190 | 8.2.5 Verification of actuating force (or moment) 8.2.6 Verification of limitation of rotation (of a rotary switch) 8.2.7 Conduit pull-out test, torque test and bending test with metallic conduits 8.3 Performance 8.3.1 Test sequences |
| 191 | 8.3.2 General test conditions |
| 192 | 8.3.3 Performance under no-load, normal load and abnormal load conditions |
| 195 | 8.3.4 Performance under conditional short-circuit current |
| 196 | 8.4 Tests for EMC 8.4.1 General 8.4.2 Immunity |
| 197 | 8.4.3 Emission 8.4.4 Test results and test report |
| 198 | Table 9 – Test values for electrical performance and ageing test of screwless-type clamping units |
| 199 | Figures Figure 1 – Examples of the recommended method for drawing an operating diagram of a rotary switch |
| 200 | Figure 2 – Operation of push-buttons Figure 3 – Difference e between the over-travel of the actuator and that of the contact element |
| 201 | Figure 4 – Examples of contact elements (schematic sketches) |
| 202 | Figure 5 – Test circuits for multi-pole control switches – Contacts of same polarity, not electrically separated Figure 6 – Test circuits for multi-pole control switches – Contacts of opposite polarity, and electrically separated |
| 203 | Figure 7 – Load Ld details for test conditions requiring different values of make and break current and/or power factor (time constant) Figure 8 – Test circuit, conditional short-circuit current (see 8.3.4.2) |
| 204 | Figure 9 – Current/time limits for d.c. test loads (see 8.3.3.5.4) Figure 10 – Voltage drop measurement at contactpoint of the clamping unit or terminal |
| 205 | Annexes Annex A (normative) Electrical ratings based on utilization categories (see 3.1) Table A.1 – Examples of contact rating designation based on utilization categories |
| 206 | Table A.2 – Examples of semiconductors switching element ratingsfor 50 Hz and/or 60 Hz 1) Table A.3 – Examples of semiconductors switching element ratings for d.c. 1) |
| 207 | Annex B (normative) Example of inductive test loads for d.c. contacts B.1 General B.2 Construction |
| 208 | Figure B.1 – Construction of load for d.c. contacts Table B.1 – DC loads |
| 209 | Annex C (normative) Special tests – Durability tests C.1 General C.1.1 Durability declaration C.1.2 Test procedures |
| 210 | C.1.3 Failure criteria C.2 Mechanical durability C.2.1 General C.2.2 Test procedures C.3 Electrical durability C.3.1 General C.3.2 Test procedures |
| 211 | Table C.1 – Making and breaking conditions for electrical durability |
| 212 | Figure C.1 – Normal circuit (see C.3.2.2) Figure C.2 – Simplified circuit (see C.3.2.2) |
| 213 | Annex D Vacant |
| 214 | Annex E (normative) Items subject to agreement between manufacturer and user |
| 215 | Annex F (normative) Class II control circuit devices insulated by encapsulation Requirements and tests F.1 General F.2 Terms and definitions F.5 Marking |
| 216 | F.7 Instructional and functional requirements F.7.1 Choice of compound F.7.2 Adhesion of the compound F.7.3 Dielectric properties F.8 Tests F.8.1 Kind of tests Figure F.1 – Insulation by encapsulation |
| 217 | Figure F.2 – Test apparatus |
| 219 | Annex G (normative) Additional requirements for control circuit devices with integrally connected cables G.1 General G.2 Terms and definitions G.7 Constructional and performance requirements G.7.1 Constructional requirements |
| 220 | G.7.2 Performance requirements G.8 Tests G.8.1 General G.8.2 Type tests |
| 221 | G.8.3 Results to be obtained |
| 222 | Annex H (normative) Additional requirements for semiconductor switching elements for control circuit devices H.1 General H.2 Terms and definitions H.3 Classification H.3.1 Semiconductor switching elements H.4 Characteristics H.4.1 Rated voltage |
| 223 | H.4.2 Utilization categories H.5 Product information H.7 Constructional and performance requirements H.7.1 Performance requirements Figure H.1 – Relationship between Ue and UB |
| 224 | H.7.2 Ability to make under abnormal and normal conditions H.7.3 Conditional short-circuit current H.7.4 Electromagnetic compatibility (EMC) H.8 Tests H.8.1 Type tests H.8.2 Voltage drop (Ud) |
| 225 | H.8.3 Minimum operational current (Im) H.8.4 OFF-state current (Ir) H.8.5 Making and breaking capacities H.8.6 Performance under short-circuit current conditions Figure H.2 – Example of test circuit for the verification of voltage drop, minimum operational current and OFF-state current (see H.8.2, H.8.3 and H.8.4) |
| 226 | H.8.7 Verification of electromagnetic compatibility Figure H.3 – Short-circuit testing (see H.8.6.1) |
| 228 | Annex J (normative) Special requirements for indicator lights and indicating towers J.1 General J.2 Terms and definitions J.3 Classification |
| 229 | J.4 Characteristics J.4.1 Rated operational voltage of an indicator light J.4.2 Rated thermal power of an indicator light J.4.3 Rated values of the lamp J.5 Product information J.6 Normal service, mounting and transport conditions |
| 230 | J.7 Constructional and performance requirements J.8 Tests J.8.3 Tests for indicator lights and indicating towers Figure J.1 – Mounting dimensions for indicating tower socket |
| 231 | Figure J.2 – Mounting dimensions for temperature rise tests |
| 232 | J.8.4 Shock and vibration |
| 233 | J.8.5 Degree of protection for indicating towers |
| 234 | Annex K (normative) Special requirements for control switches with direct opening action K.1 General K.2 Terms and definitions K.3 Classification |
| 235 | K.4 Characteristics K.4.4 Utilization categories for switching elements K.5 Product information K.5.2 Marking K.5.4 Additional information |
| 236 | K.6 Normal service, mounting and transport conditions K.7 Constructional and performance requirements |
| 237 | K.8 Tests |
| 239 | Figure K.1 – Verification of robustness of the actuating system |
| 240 | Annex L (normative) Special requirements for mechanically linked contact elements L.1 General L.2 Terms and definitions L.3 Classification L.4 Characteristics L.5 Product information |
| 241 | L.6 Normal service, mounting and transport conditions L.7 Constructional and performance requirements L.8 Tests Figure L.1 – Example of representation of NO and NC contacts which are mechanically linked and NC non-linked contact Figure L.2 – Symbol for device containing mechanically linked contacts |
| 242 | L.8.4 Special test for mechanically linked contact elements |
| 243 | Annex M (normative) Terminal marking, distinctive number and distinctive letter for control circuit devices M.1 Scope M.2 Terminal marking rule M.2.1 General M.2.2 Function digit M.2.3 Sequence digit |
| 244 | M.2.4 Numbering method M.3 Distinctive number and distinctive letter M.3.1 General M.3.2 Distinctive number M.3.3 Distinctive letter M.4 Terminal numbering sequence |
| 245 | M.5 Contactor relays designated by the distinctive letter E Table M.1 – Diagrams of control switches |
| 246 | Table M.2 – Diagrams of contactor relays designated by the distinctive letter E |
| 247 | M.6 Contactor relays designated by distinctive letters X, Y or Z M.6.1 Contactor relays designated by the distinctive letter Z M.6.2 Contactor relays designated by the distinctive letter X M.6.3 Contactor relays designated by the distinctive letter Y Table M.3 – Diagrams of contactor relays designated by the distinctive letter Y |
| 248 | Annex N (normative) Procedure to determine reliability data for electromechanical devices in control circuits used in functional safety applications N.1 General N.1.1 Overview N.1.2 Scope and object N.1.3 General requirements N.2 Terms, definitions and symbols N.3 Method based on durability test results N.3.1 General method N.3.2 Test requirements |
| 249 | N.3.3 Number of samples N.3.4 Characterization of a failure mode N.3.5 Weibull modelling N.3.6 Useful life and upper limit of failure rate N.3.7 Reliability data N.4 Data information N.5 Example |
| 250 | Bibliography |
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BS EN 60947-5-1:2017
Low-voltage switchgear and controlgear – Control circuit devices and switching elements. Electromechanical control circuit devices…
