{"id":431232,"date":"2024-10-20T07:27:05","date_gmt":"2024-10-20T07:27:05","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60947-12021-2\/"},"modified":"2024-10-26T14:09:55","modified_gmt":"2024-10-26T14:09:55","slug":"bs-en-iec-60947-12021-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60947-12021-2\/","title":{"rendered":"BS EN IEC 60947-1:2021"},"content":{"rendered":"

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
8<\/td>\nAnnex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
17<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
28<\/td>\nFOREWORD <\/td>\n<\/tr>\n
31<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
32<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
36<\/td>\n3 Terms, definitions, symbols and reference clauses
3.1 General
3.2 Alphabetical index of definitions <\/td>\n<\/tr>\n
41<\/td>\n3.3 General terms and definitions <\/td>\n<\/tr>\n
45<\/td>\n3.4 Switching devices <\/td>\n<\/tr>\n
48<\/td>\n3.5 Parts of switching devices <\/td>\n<\/tr>\n
54<\/td>\n3.6 Operation of switching devices <\/td>\n<\/tr>\n
59<\/td>\n3.7 Characteristic quantities <\/td>\n<\/tr>\n
69<\/td>\n3.8 Tests
3.9 Ports
3.10 Symbols and references clauses for characteristics described in this document <\/td>\n<\/tr>\n
70<\/td>\n4 Classification
5 Characteristics
5.1 Summary of the characteristics <\/td>\n<\/tr>\n
71<\/td>\n5.2 Type of equipment
5.3 Rated and limiting values for the main circuit <\/td>\n<\/tr>\n
77<\/td>\n5.4 Utilization category
5.5 Control circuits <\/td>\n<\/tr>\n
78<\/td>\n5.6 Auxiliary circuits
5.7 Relays and releases
5.8 Co-ordination with short-circuit protective devices (SCPD)
6 Product information
6.1 Nature of information <\/td>\n<\/tr>\n
79<\/td>\n6.2 Marking <\/td>\n<\/tr>\n
80<\/td>\n6.3 Instructions for installation, operation and maintenance, decommissioning and dismantling <\/td>\n<\/tr>\n
81<\/td>\n6.4 Environmental information
7 Normal service, mounting and transport conditions
7.1 Normal service conditions <\/td>\n<\/tr>\n
83<\/td>\n7.2 Conditions during transport and storage
7.3 Mounting
8 Constructional and performance requirements
8.1 Constructional requirements <\/td>\n<\/tr>\n
92<\/td>\n8.2 Performance requirements <\/td>\n<\/tr>\n
99<\/td>\n8.3 Electromagnetic compatibility (EMC) <\/td>\n<\/tr>\n
100<\/td>\n9 Tests
9.1 Kinds of test <\/td>\n<\/tr>\n
102<\/td>\n9.2 Compliance with constructional requirements <\/td>\n<\/tr>\n
109<\/td>\n9.3 Performance <\/td>\n<\/tr>\n
129<\/td>\n9.4 Tests for EMC <\/td>\n<\/tr>\n
131<\/td>\nTables
Table 1 \u2013 Nominal cross-sections of round copper conductors and approximate relationship between mm2 and AWG\/kcmil sizes (see 8.1.8.2) <\/td>\n<\/tr>\n
132<\/td>\nTable 2 \u2013 Temperature-rise limits of terminals (see 8.2.2.2 and 9.3.3.3.4)
Table 3 \u2013 Temperature-rise limits of accessible parts (see 8.2.2.3 and 9.3.3.3.4) <\/td>\n<\/tr>\n
133<\/td>\nTable 4 \u2013 Tightening torques for the verification of the mechanical strength of screw-type terminals (see 9.2.5.2 and 9.3.2.1) <\/td>\n<\/tr>\n
134<\/td>\nTable 5 \u2013 Test values for flexion and pull-out tests for round copper conductors (see 9.2.5.4.1)
Table 6 \u2013 Test values for pull-out test for flat copper conductors (see 9.2.5.4.2) <\/td>\n<\/tr>\n
135<\/td>\nTable 7 \u2013 Maximum conductor cross-sections and corresponding gauges (see 9.2.5.5.1) <\/td>\n<\/tr>\n
136<\/td>\nTable 8 \u2013 Relationship between conductor cross-section and diameter <\/td>\n<\/tr>\n
137<\/td>\nTable 9 \u2013 Test copper conductors for test currents up to 400 A inclusive (see 9.3.3.3.4) <\/td>\n<\/tr>\n
138<\/td>\nTable 10 \u2013 Test copper conductors for test currents above 400 A and up to 800 A inclusive (see 9.3.3.3.4)
Table 11 \u2013 Test copper bars for test currents above 400 A and up to 3 150 A inclusive (see 9.3.3.3.4) <\/td>\n<\/tr>\n
139<\/td>\nTable 12 \u2013 Impulse withstand test voltages
Table 13 \u2013 Minimum clearances in air <\/td>\n<\/tr>\n
140<\/td>\nTable 14 \u2013 Test voltages across the open contacts of equipment suitable for isolation
Table 15 \u2013 Minimum creepage distances <\/td>\n<\/tr>\n
141<\/td>\nTable 16 \u2013 Values of power-factors and time-constants corresponding to test currents, and ratio n between peak and RMS values of current (see 9.3.4.3, item a)) <\/td>\n<\/tr>\n
142<\/td>\nTable 17 \u2013 Actuator test force (see 9.2.6.2.1)
Table 18 \u2013 Tolerances on test quantities (see 9.3.4.3, item a))
Table 19 \u2013 Dielectric test voltage corresponding to the rated insulation voltage <\/td>\n<\/tr>\n
143<\/td>\nTable 20 \u2013 Test values for conduit pull-out test (see 9.2.8.2)
Table 21 \u2013 Test values for conduit bending test (see 9.2.8.3)
Table 22 \u2013 Test values for conduit torque test (see 9.2.8.2 and 9.2.8.4) <\/td>\n<\/tr>\n
144<\/td>\nTable 23 \u2013 Tests for EMC \u2013 Immunity (see 9.4.1) <\/td>\n<\/tr>\n
145<\/td>\nTable 24 \u2013 Acceptance criteria when EM disturbances are present
Table 25 \u2013 Cross-sectional area of a copper protective conductor <\/td>\n<\/tr>\n
146<\/td>\nFigures
Figure 1 \u2013 Test equipment for flexion test (see 9.2.5.3 and Table 5)
Figure 2 \u2013 Gauges of form A and form B (see 9.2.5.5.2 and Table 7) <\/td>\n<\/tr>\n
147<\/td>\nFigure 3 \u2013 Diagram of the test circuit for the verification of making and breaking capacities of a single-pole equipment on single-phase AC or on direct current (see 9.3.3.5.2) <\/td>\n<\/tr>\n
148<\/td>\nFigure 4 \u2013 Diagram of the test circuit for the verification of making and breaking capacities of a two-pole equipment on single-phase AC or on direct current (see 9.3.3.5.2) <\/td>\n<\/tr>\n
149<\/td>\nFigure 5 \u2013 Diagram of the test circuit for the verification of making and breaking capacities of a three-pole equipment (see 9.3.3.5.2) <\/td>\n<\/tr>\n
150<\/td>\nFigure 6 \u2013 Diagram of the test circuit for the verification of making and breaking capacities of a four-pole equipment (see 9.3.3.5.2) <\/td>\n<\/tr>\n
151<\/td>\nFigure 7 \u2013 Schematic illustration of the recovery voltage across contacts of the first phase to clear under ideal conditions (see 9.3.3.5.2, item e)) <\/td>\n<\/tr>\n
152<\/td>\nFigure 8 \u2013 Diagram of a load circuit adjustment method <\/td>\n<\/tr>\n
153<\/td>\nFigure 9 \u2013 Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a single-pole equipment on single-phase AC or on direct current (see 9.3.4.1.2) <\/td>\n<\/tr>\n
154<\/td>\nFigure 10 \u2013 Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a two-pole equipment on single-phase AC or on direct current (see 9.3.4.1.2) <\/td>\n<\/tr>\n
155<\/td>\nFigure 11 \u2013 Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a three-pole equipment (see 9.3.4.1.2) <\/td>\n<\/tr>\n
156<\/td>\nFigure 12 \u2013 Diagram of the test circuit for the verification of short-circuit making and breaking capacities of a four-pole equipment (see 9.3.4.1.2) <\/td>\n<\/tr>\n
157<\/td>\nFigure 13 \u2013 Example of short-circuit making and breaking test record in the case of a single-pole equipment on single-phase AC (see 9.3.4.1.8) <\/td>\n<\/tr>\n
158<\/td>\nFigure 14 \u2013 Verification of short-circuit making and breaking capacities on direct current (see 9.3.4.1.8) <\/td>\n<\/tr>\n
159<\/td>\nFigure 15 \u2013 Determination of the prospective breaking current when the first calibration of the test circuit has been made at a current lower than the rated breaking capacity (see 9.3.4.1.8, item b)) <\/td>\n<\/tr>\n
160<\/td>\nFigure 16 \u2013 Actuator test force (see 9.2.6.2.1 and Table 17) <\/td>\n<\/tr>\n
161<\/td>\nAnnexes
Annex A (informative) Harmonisation of utilization categories for low-voltage switchgear and controlgear
Table A.1 \u2013 Utilization categories used in the IEC 60947 series <\/td>\n<\/tr>\n
164<\/td>\nAnnex B (Vacant) <\/td>\n<\/tr>\n
165<\/td>\nAnnex C (normative) Degrees of protection of enclosed equipment <\/td>\n<\/tr>\n
169<\/td>\nTable C.1 \u2013 IP Codes (1 of 3) <\/td>\n<\/tr>\n
172<\/td>\nAnnex D (informative) Examples of clamping units and relationship between clamping unit and connecting device
Figure D.1 \u2013 Clamping unit in a connecting device <\/td>\n<\/tr>\n
173<\/td>\nFigure D.2 \u2013 Screw clamping units <\/td>\n<\/tr>\n
174<\/td>\nFigure D.3 \u2013 Pillar clamping units <\/td>\n<\/tr>\n
175<\/td>\nFigure D.4 \u2013 Stud clamping units <\/td>\n<\/tr>\n
176<\/td>\nFigure D.5 \u2013 Saddle clamping units <\/td>\n<\/tr>\n
177<\/td>\nFigure D.6 \u2013 Lug clamping units <\/td>\n<\/tr>\n
178<\/td>\nFigure D.7 \u2013 Mantle clamping units <\/td>\n<\/tr>\n
179<\/td>\nFigure D.8 \u2013 Screwless-type clamping units (sketches) <\/td>\n<\/tr>\n
180<\/td>\nAnnex E (informative) Description of a method for adjusting the load circuit <\/td>\n<\/tr>\n
181<\/td>\nFigure E.1 \u2013 Determination of the actual value of the factor \u03b3 <\/td>\n<\/tr>\n
182<\/td>\nAnnex F (informative) Determination of short-circuit power-factor or time-constant <\/td>\n<\/tr>\n
184<\/td>\nAnnex G (informative) Measurement of creepage distances and clearances
Table G.1 \u2013 Minimum widths of grooves <\/td>\n<\/tr>\n
185<\/td>\nFigure G.1 \u2013 Measurement of ribs
Figure G.2 \u2013 Creepage distance across the fixed and moving insulation of contact carriers <\/td>\n<\/tr>\n
186<\/td>\nFigure G.3 \u2013 Example 1
Figure G.4 \u2013 Example 2
Figure G.5 \u2013 Example 3 <\/td>\n<\/tr>\n
187<\/td>\nFigure G.6 \u2013 Example 4
Figure G.7 \u2013 Example 5
Figure G.8 \u2013 Example 6 <\/td>\n<\/tr>\n
188<\/td>\nFigure G.9 \u2013 Example 7
Figure G.10 \u2013 Example 8 <\/td>\n<\/tr>\n
189<\/td>\nFigure G.11 \u2013 Example 9
Figure G.12 \u2013 Example 10 <\/td>\n<\/tr>\n
190<\/td>\nFigure G.13 \u2013 Example 11 <\/td>\n<\/tr>\n
191<\/td>\nAnnex H (informative) Correlation between the nominal voltage of the supply system and the rated impulse withstand voltage of equipment <\/td>\n<\/tr>\n
192<\/td>\nTable H.1 \u2013 Correspondence between the nominal voltage of the supply system and the equipment rated impulse withstand voltage, in case of overvoltage protection by surge-arresters according to IEC 60099-1 <\/td>\n<\/tr>\n
193<\/td>\nAnnex J informative) Items subject to agreement between manufacturer and user <\/td>\n<\/tr>\n
194<\/td>\nAnnex K (normative) Procedure to determine reliability data for electromechanical devices used in functional safety applications <\/td>\n<\/tr>\n
197<\/td>\nTable K.1 \u2013 Failure modes of devices <\/td>\n<\/tr>\n
201<\/td>\nTable K.2 \u2013 Example of 15 sorted ascending times to failure of contactors <\/td>\n<\/tr>\n
202<\/td>\nTable K.3 \u2013 Example median rank calculation <\/td>\n<\/tr>\n
203<\/td>\nFigure K.1 \u2013 Plot of Weibull median rank regression <\/td>\n<\/tr>\n
204<\/td>\nAnnex L (normative) Terminal marking and distinctive number <\/td>\n<\/tr>\n
215<\/td>\nAnnex M (normative) Flammability test
Figure M.1 \u2013 Test fixture for hot wire ignition test <\/td>\n<\/tr>\n
217<\/td>\nFigure M.2 \u2013 Circuit for arc ignition test <\/td>\n<\/tr>\n
218<\/td>\nTable M.1 \u2013 HWI and AI characteristics for materials necessary to retain current carrying parts in position
Table M.2 \u2013 HWI and AI characteristics for materials other than those covered by Table M.1 <\/td>\n<\/tr>\n
219<\/td>\nAnnex N (normative) Requirements and tests for equipment with protective separation <\/td>\n<\/tr>\n
223<\/td>\nFigure N.1 \u2013 Example of application with component connected between separated circuits <\/td>\n<\/tr>\n
224<\/td>\nAnnex O (informative) Environmentally conscious design <\/td>\n<\/tr>\n
229<\/td>\nFigure O.1 \u2013 Conceptual relationship between provisions in product standards and the environmental impacts associated with the product during its life cycle <\/td>\n<\/tr>\n
230<\/td>\nFigure O.2 \u2013 Overview of ECD process <\/td>\n<\/tr>\n
233<\/td>\nAnnex P (informative) Terminal lugs for low voltage switchgear and controlgear connected to copper conductors
Figure P.1 \u2013 Dimensions
Table P.1 \u2013 Examples of terminal lugs for low voltage switchgear and controlgear connected to copper conductors <\/td>\n<\/tr>\n
234<\/td>\nAnnex Q (normative) Special tests \u2013 Tests for environmental categories <\/td>\n<\/tr>\n
236<\/td>\nTable Q.1 \u2013 Test sequences <\/td>\n<\/tr>\n
240<\/td>\nAnnex R (normative) Application of the metal foil for dielectric testing on accessible parts during operation or adjustment <\/td>\n<\/tr>\n
242<\/td>\nFigure R.1 \u2013 Operating mechanism outside the enclosure <\/td>\n<\/tr>\n
243<\/td>\nFigure R.2 \u2013 Application of the metallic foil to operating areas around switch actuator <\/td>\n<\/tr>\n
244<\/td>\nFigure R.3 \u2013 Example of finger protected location for hazardous-live-parts in push-button vicinity
Figure R.4 \u2013 Example I of application of the foil <\/td>\n<\/tr>\n
245<\/td>\nFigure R.5 \u2013 Example II of application of the foil
Figure R.6 \u2013 Example III of application of the foil <\/td>\n<\/tr>\n
246<\/td>\nFigure R.7 \u2013 Application of metal foil on holes and grooves <\/td>\n<\/tr>\n
247<\/td>\nFigure R.8 \u2013 Operating space for actuation by rotary means <\/td>\n<\/tr>\n
248<\/td>\nAnnex S (normative) Digital inputs and outputs <\/td>\n<\/tr>\n
249<\/td>\nTable S.1 \u2013 Rated values and operating ranges of incoming power supply <\/td>\n<\/tr>\n
250<\/td>\nFigure S.1 \u2013 I\/O parameters <\/td>\n<\/tr>\n
251<\/td>\nFigure S.2 \u2013 U-I operation regions of current-sinking inputs <\/td>\n<\/tr>\n
252<\/td>\nTable S.2 \u2013 Standard operating ranges for digital inputs (current sinking) <\/td>\n<\/tr>\n
253<\/td>\nTable S.3 \u2013 Rated values and operating ranges for current sourcing digital AC outputs <\/td>\n<\/tr>\n
254<\/td>\nFigure S.3 \u2013 Temporary overload waveform for digital AC outputs <\/td>\n<\/tr>\n
256<\/td>\nTable S.4 \u2013 Rated values and operating ranges (direct current) for current-sourcing digital DC outputs <\/td>\n<\/tr>\n
257<\/td>\nFigure S.4 \u2013 Temporary overload waveform for digital DC outputs <\/td>\n<\/tr>\n
259<\/td>\nTable S.5 \u2013 Overload and short-circuit tests for digital outputs <\/td>\n<\/tr>\n
263<\/td>\nAnnex T (normative) Extended functions within electronic overload relays <\/td>\n<\/tr>\n
264<\/td>\nTable T.1 \u2013 Tripping time of ground\/earth fault electronic overload relays <\/td>\n<\/tr>\n
267<\/td>\nFigure T.1 \u2013 Test circuit for the verification of the operating characteristic of a ground\/earth fault current sensing electronic relay <\/td>\n<\/tr>\n
268<\/td>\nAnnex U (informative) Examples of control circuit configurations
Figure U.1 \u2013 Diagrammatic representation of an external control device <\/td>\n<\/tr>\n
269<\/td>\nFigure U.2 \u2013 Single supply and control input
Figure U.3 \u2013 Separate supply and control inputs
Figure U.4 \u2013 Equipment with several external control supplies <\/td>\n<\/tr>\n
270<\/td>\nFigure U.5 \u2013 Equipment with bus interface <\/td>\n<\/tr>\n
271<\/td>\nAnnex V (informative) Power management with switchgear and controlgear for electrical energy efficiency <\/td>\n<\/tr>\n
274<\/td>\nAnnex W (normative) Procedure to establish material declaration <\/td>\n<\/tr>\n
277<\/td>\nTable W.1 \u2013 Example of main and business information in tabular form <\/td>\n<\/tr>\n
278<\/td>\nFigure W.1 \u2013 Example of Main and Business information, graphical representation of the XML code
Table W.2 \u2013 Example of product information in tabular form <\/td>\n<\/tr>\n
279<\/td>\nFigure W.2 \u2013 Example of product information, graphical representation of the XML code
Table W.3 \u2013 Example of declarable substances information in tabular form <\/td>\n<\/tr>\n
280<\/td>\nFigure W.3 \u2013 Example of declarable substances information, graphical representation of the XML code <\/td>\n<\/tr>\n
281<\/td>\nFigure W.4 \u2013 Example of material classes information, graphical representation of the XML code
Table W.4 \u2013 Example of material classes information in tabular form <\/td>\n<\/tr>\n
282<\/td>\nAnnex X (normative) Co-ordination between circuit-breaker or CPS and another short-circuit protective device associated in the same circuit <\/td>\n<\/tr>\n
288<\/td>\nFigure X.1 \u2013 Overcurrent co-ordination between a circuit-breaker or CPS and a fuse or back-up protection by a fuse: operating characteristics <\/td>\n<\/tr>\n
289<\/td>\nFigure X.2 \u2013 Total selectivity between two circuit-breakers or a circuit-breaker and a CPS <\/td>\n<\/tr>\n
290<\/td>\nFigure X.3 \u2013 Back-up protection by a circuit-breaker or CPS \u2013 Operating characteristics <\/td>\n<\/tr>\n
291<\/td>\nFigure X.4 \u2013 Example of test circuit for conditional short-circuit breaking capacity tests showing cable connections for a 3-pole circuit-breaker or CPS (C1) <\/td>\n<\/tr>\n
292<\/td>\nFigure X.5 \u2013 Example of test circuit for the verification of selectivity <\/td>\n<\/tr>\n
293<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Low-voltage switchgear and controlgear – General rules<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2023<\/td>\n298<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":431242,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[517,2641],"product_tag":[],"class_list":{"0":"post-431232","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-29-130-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/431232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/431242"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=431232"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=431232"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=431232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}