{"id":374482,"date":"2024-10-20T02:38:50","date_gmt":"2024-10-20T02:38:50","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-61439-12021\/"},"modified":"2024-10-26T04:36:36","modified_gmt":"2024-10-26T04:36:36","slug":"bs-en-iec-61439-12021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-61439-12021\/","title":{"rendered":"BS EN IEC 61439-1:2021"},"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
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
12<\/td>\nAnnex ZZ (informative)Relationship between this European standard and the safety objectives of Directive 2014\/35\/EU [2014 OJ L96] aimed to be covered <\/td>\n<\/tr>\n
15<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
21<\/td>\nFOREWORD <\/td>\n<\/tr>\n
23<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
24<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
27<\/td>\n3 Terms and definitions
3.1 General terms <\/td>\n<\/tr>\n
29<\/td>\n3.2 Constructional units of assemblies <\/td>\n<\/tr>\n
31<\/td>\n3.3 External design of assemblies <\/td>\n<\/tr>\n
32<\/td>\n3.4 Structural parts of assemblies <\/td>\n<\/tr>\n
33<\/td>\n3.5 Conditions of installation of assemblies
3.6 Insulation characteristics <\/td>\n<\/tr>\n
36<\/td>\n3.7 Protection against electric shock <\/td>\n<\/tr>\n
40<\/td>\n3.8 Characteristics <\/td>\n<\/tr>\n
44<\/td>\n3.9 Verification <\/td>\n<\/tr>\n
45<\/td>\n3.10 Manufacturer
4 Symbols and abbreviations <\/td>\n<\/tr>\n
46<\/td>\n5 Interface characteristics
5.1 General
5.2 Voltage ratings
5.2.1 Rated voltage (Un) (of the assembly) <\/td>\n<\/tr>\n
47<\/td>\n5.2.2 Rated operational voltage (Ue) (of a circuit of an assembly)
5.2.3 Rated insulation voltage (Ui) (of a circuit of an assembly)
5.2.4 Rated impulse withstand voltage (Uimp) (of the assembly)
5.3 Current ratings
5.3.1 Rated current of an assembly (InA)
5.3.2 Rated current of a main outgoing circuit (Inc) <\/td>\n<\/tr>\n
48<\/td>\n5.3.3 Group rated current of a main circuit (Ing)
5.3.4 Rated peak withstand current (Ipk) <\/td>\n<\/tr>\n
49<\/td>\n5.3.5 Rated short-time withstand current (Icw) (of a main circuit of an assembly)
5.3.6 Rated conditional short-circuit current (Icc) (of an assembly or a circuit of an assembly)
5.4 Rated diversity factor (RDF)
5.5 Rated frequency (fn) <\/td>\n<\/tr>\n
50<\/td>\n5.6 Other characteristics
6 Information
6.1 Assembly designation marking
6.2 Documentation
6.2.1 Information relating to the assembly <\/td>\n<\/tr>\n
51<\/td>\n6.2.2 Instructions for handling, installation, operation and maintenance
6.3 Device and\/or component identification
7 Service conditions
7.1 Normal service conditions
7.1.1 Climatic conditions <\/td>\n<\/tr>\n
52<\/td>\n7.1.2 Pollution degree
7.2 Special service conditions <\/td>\n<\/tr>\n
53<\/td>\n7.3 Conditions during transport, storage and installation
8 Constructional requirements
8.1 Strength of materials and parts
8.1.1 General <\/td>\n<\/tr>\n
54<\/td>\n8.1.2 Protection against corrosion
8.1.3 Properties of insulating materials
8.1.4 Resistance to ultra-violet (UV) radiation
8.1.5 Mechanical strength <\/td>\n<\/tr>\n
55<\/td>\n8.1.6 Lifting provision
8.2 Degree of protection provided by an assembly enclosure
8.2.1 Protection against mechanical impact (IK code)
8.2.2 Protection against contact with live parts, ingress of solid foreign bodies and water (IP code) <\/td>\n<\/tr>\n
56<\/td>\n8.2.3 Assembly with removable parts
8.3 Clearances and creepage distances
8.3.1 General
8.3.2 Clearances <\/td>\n<\/tr>\n
57<\/td>\n8.3.3 Creepage distances
8.4 Protection against electric shock
8.4.1 General
8.4.2 Basic protection <\/td>\n<\/tr>\n
58<\/td>\n8.4.3 Fault protection <\/td>\n<\/tr>\n
61<\/td>\n8.4.4 Additional requirements for class II assemblies <\/td>\n<\/tr>\n
62<\/td>\n8.4.5 Limitation of steady-state touch currents and charge
8.4.6 Operating and servicing conditions <\/td>\n<\/tr>\n
63<\/td>\n8.5 Incorporation of switching devices and components
8.5.1 Fixed parts <\/td>\n<\/tr>\n
64<\/td>\n8.5.2 Removable parts
8.5.3 Selection of switching devices and components
8.5.4 Installation of switching devices and components <\/td>\n<\/tr>\n
65<\/td>\n8.5.5 Accessibility
8.5.6 Barriers
8.5.7 Direction of operation and indication of switching positions
8.5.8 Indicator lights and push-buttons
8.5.9 Power factor correction banks
8.6 Internal electrical circuits and connections
8.6.1 Main circuits <\/td>\n<\/tr>\n
66<\/td>\n8.6.2 Auxiliary circuits
8.6.3 Bare and insulated conductors <\/td>\n<\/tr>\n
68<\/td>\n8.6.4 Selection and installation of non-protected live conductors to reduce the possibility of short-circuits
8.6.5 Identification of the conductors of main and auxiliary circuits
8.6.6 Identification of the protective conductor (PE, PEL, PEM, PEN) and of the neutral conductor (N) and the mid-point conductor (M) of the main circuits
8.6.7 Conductors in AC circuits passing through ferromagnetic enclosures or plates
8.7 Cooling
8.8 Terminals for external cables <\/td>\n<\/tr>\n
70<\/td>\n9 Performance requirements
9.1 Dielectric properties
9.1.1 General
9.1.2 Power-frequency withstand voltage
9.1.3 Impulse withstand voltage <\/td>\n<\/tr>\n
71<\/td>\n9.1.4 Protection of surge protective devices
9.2 Temperature-rise limits
9.2.1 General
9.2.2 Adjustment of rated currents for alternative ambient air temperatures <\/td>\n<\/tr>\n
72<\/td>\n9.3 Short-circuit protection and short-circuit withstand strength
9.3.1 General
9.3.2 Information concerning short-circuit withstand strength <\/td>\n<\/tr>\n
73<\/td>\n9.3.3 Relationship between peak current and short-time current
9.3.4 Coordination of protective devices
9.4 Electromagnetic compatibility (EMC)
10 Design verification
10.1 General <\/td>\n<\/tr>\n
75<\/td>\n10.2 Strength of materials and parts
10.2.1 General
10.2.2 Resistance to corrosion <\/td>\n<\/tr>\n
77<\/td>\n10.2.3 Properties of insulating materials <\/td>\n<\/tr>\n
78<\/td>\n10.2.4 Resistance to ultraviolet (UV) radiation <\/td>\n<\/tr>\n
79<\/td>\n10.2.5 Lifting <\/td>\n<\/tr>\n
80<\/td>\n10.2.6 Verification of protection against mechanical impact (IK code)
10.2.7 Marking
10.2.8 Mechanical operation <\/td>\n<\/tr>\n
81<\/td>\n10.3 Degree of protection of assemblies (IP Code) <\/td>\n<\/tr>\n
82<\/td>\n10.4 Clearances and creepage distances
10.5 Protection against electric shock and integrity of protective circuits
10.5.1 General
10.5.2 Effective earth continuity between the exposed-conductive-parts of the class I assembly and the protective circuit
10.5.3 Short-circuit withstand strength of the protective circuit <\/td>\n<\/tr>\n
83<\/td>\n10.6 Incorporation of switching devices and components
10.6.1 General
10.6.2 Electromagnetic compatibility
10.7 Internal electrical circuits and connections
10.8 Terminals for external conductors <\/td>\n<\/tr>\n
84<\/td>\n10.9 Dielectric properties
10.9.1 General
10.9.2 Power-frequency withstand voltage <\/td>\n<\/tr>\n
85<\/td>\n10.9.3 Impulse withstand voltage <\/td>\n<\/tr>\n
87<\/td>\n10.9.4 Testing of enclosures made of insulating material
10.9.5 External door or cover mounted operating handles of insulating material
10.9.6 Testing of conductors and hazardous live parts covered by insulating material to provide protection against electric shock
10.10 Temperature-rise
10.10.1 General <\/td>\n<\/tr>\n
88<\/td>\n10.10.2 Verification by testing <\/td>\n<\/tr>\n
94<\/td>\n10.10.3 Verification by comparison <\/td>\n<\/tr>\n
97<\/td>\n10.10.4 Verification assessment <\/td>\n<\/tr>\n
99<\/td>\n10.11 Short-circuit withstand strength
10.11.1 General
10.11.2 Circuits of assemblies which are exempted from the verification of the short-circuit withstand strength <\/td>\n<\/tr>\n
100<\/td>\n10.11.3 Verification by comparison with a reference design \u2013 Using a checklist
10.11.4 Verification by comparison with a reference design(s) \u2013 Using calculation
10.11.5 Verification by test <\/td>\n<\/tr>\n
106<\/td>\n10.12 Electromagnetic compatibility (EMC)
11 Routine verification
11.1 General <\/td>\n<\/tr>\n
107<\/td>\n11.2 Degree of protection against contact with hazardous live parts, ingress of solid foreign bodies and water of enclosures
11.3 Clearances and creepage distances
11.4 Protection against electric shock and integrity of protective circuits <\/td>\n<\/tr>\n
108<\/td>\n11.5 Incorporation of built-in components
11.6 Internal electrical circuits and connections
11.7 Terminals for external conductors
11.8 Mechanical operation
11.9 Dielectric properties
11.10 Wiring, operational performance and function <\/td>\n<\/tr>\n
109<\/td>\nTables
Table 1 \u2013 Minimum clearances in air (8.3.2) <\/td>\n<\/tr>\n
110<\/td>\nTable 2 \u2013 Minimum creepage distances (8.3.3) <\/td>\n<\/tr>\n
111<\/td>\nTable 3 \u2013 Cross-sectional area of a copper protective conductor (8.4.3.2.2)
Table 4 \u2013 Conductor selection and installation requirements (8.6.4)
Table 5 \u2013 Minimum terminal capacity for copper protective conductors (PE) (8.8) <\/td>\n<\/tr>\n
112<\/td>\nTable 6 \u2013 Temperature-rise limits (9.2) <\/td>\n<\/tr>\n
113<\/td>\nTable 7 \u2013 Values for the factor na (9.3.3)
Table 8 \u2013 Power-frequency withstand voltage for main circuits (10.9.2)
Table 9 \u2013 Power-frequency withstand voltage for auxiliary circuits (10.9.2)
Table 10 \u2013 Impulse withstand test voltages (10.9.3) <\/td>\n<\/tr>\n
114<\/td>\nTable 11 \u2013 Copper test conductors for rated currents up to 400 A inclusive (10.10.2.3.2) <\/td>\n<\/tr>\n
115<\/td>\nTable 12 \u2013 Copper test conductors for rated currents from 400 A to 7\u200a000 A (10.10.2.3.2) <\/td>\n<\/tr>\n
116<\/td>\nTable 13 \u2013 Short-circuit verification by comparison with reference designs: checklist (10.5.3.3, 10.11.3 and 10.11.4) <\/td>\n<\/tr>\n
117<\/td>\nTable 14 \u2013 Relationship between prospective fault current and diameter of copper wire
Table 15 \u2013 Climatic conditions <\/td>\n<\/tr>\n
118<\/td>\nAnnexes
Annex A (normative) Minimum and maximum cross-section of copper cables suitable for connection to terminals for external cables (see 8.8)
Table A.1 \u2013 Cross-section of copper cables suitable for connection to terminals for external cables <\/td>\n<\/tr>\n
119<\/td>\nAnnex B (normative) Method of calculating the cross-sectional area of protective conductors with regard to thermal stresses due to currents of short duration
Table B.1 \u2013 Values of k for insulated protective conductors not incorporated in cables or bare protective conductors in contact with cable covering <\/td>\n<\/tr>\n
120<\/td>\nAnnex C (informative) User information template
Table C.1 \u2013 User information template <\/td>\n<\/tr>\n
124<\/td>\nAnnex D (informative) Design verification
Table D.1 \u2013 List of design verifications to be performed <\/td>\n<\/tr>\n
125<\/td>\nAnnex E (informative) Rated diversity factor
E.1 General
E.2 Rated diversity factor for outgoing circuits within an assembly
E.2.1 General <\/td>\n<\/tr>\n
126<\/td>\nFigures
Figure E.1 \u2013 Typical assembly <\/td>\n<\/tr>\n
127<\/td>\n Table E.1 \u2013 Examples of loading for an assembly <\/td>\n<\/tr>\n
128<\/td>\nE.2.2 Example of an assembly with an RDF of 0,68
Figure E.2 \u2013 Example 1: Table E.1 \u2013 Functional unit loading for an assembly with a rated diversity factor of 0,68 <\/td>\n<\/tr>\n
129<\/td>\nE.2.3 Example of an assembly with RDF declared for each section
Figure E.3 \u2013 Example 2: Table E.1 \u2013 Functional unit loading for an assembly with a rated diversity factor of 0,6 in Section B and 0,68 in Section C <\/td>\n<\/tr>\n
130<\/td>\nAnnex F (normative) Measurement of clearances and creepage distances 5F
F.1 Basic principles
F.2 Use of ribs
Table F.1 \u2013 Minimum width of grooves <\/td>\n<\/tr>\n
134<\/td>\nFigure F.1 \u2013 Measurement of clearance and creepage distances <\/td>\n<\/tr>\n
135<\/td>\nAnnex G (normative) Correlation between the nominal voltage of the supply system and the rated impulse withstand voltage of the equipment 6F <\/td>\n<\/tr>\n
136<\/td>\nTable G.1 \u2013 Correspondence between the nominal voltage of the supply system and the equipment rated impulse withstand voltage <\/td>\n<\/tr>\n
137<\/td>\nAnnex H (informative) Operating current and power loss of copper cables
Table H.1 \u2013 Operating current and power loss of single-core copper cables with a permissible conductor temperature of 70 \u00b0C (ambient temperature inside the assembly: 55 \u00b0C) <\/td>\n<\/tr>\n
138<\/td>\nTable H.2 \u2013 Reduction factor k1 for cables with a permissible conductor temperature of 70 \u00b0C (extract from IEC 60364-5-52:2009, Table B.52.14) <\/td>\n<\/tr>\n
139<\/td>\nAnnex I (informative) Thermal equivalent of an intermittent current
Figure I.1 \u2013 Example of average heating effect calculation <\/td>\n<\/tr>\n
140<\/td>\nAnnex J (normative) Electromagnetic compatibility (EMC)
J.1 General
Figure J.1 \u2013 Examples of ports <\/td>\n<\/tr>\n
144<\/td>\nTable J.1 \u2013 Tests for EMC immunity for environment A (see J.10.12.2) <\/td>\n<\/tr>\n
145<\/td>\nTable J.2 \u2013 Tests for EMC immunity for environment B (see J.10.12.2) <\/td>\n<\/tr>\n
146<\/td>\nTable J.3 \u2013 Acceptance criteria when electromagnetic disturbances are present <\/td>\n<\/tr>\n
147<\/td>\nAnnex K (normative) Operating current and power loss of bare copper bars
Table K.1 \u2013 Operating current and power loss of bare copper bars with rectangular cross-section, run horizontally and arranged with their largest face vertical, frequency 50 Hz to 60 Hz (ambient air temperature inside the assembly: 55 \u00b0C,temperature of the conductor 70 \u00b0C) <\/td>\n<\/tr>\n
148<\/td>\nTable K.2 \u2013 Factor k4 for different temperatures of the air inside the assembly and\/or for the conductors <\/td>\n<\/tr>\n
150<\/td>\nAnnex L (informative) Guidance on verification of temperature-rise
L.1 General
L.1.1 Principles
L.1.2 Current ratings of assemblies <\/td>\n<\/tr>\n
151<\/td>\nL.2 Temperature-rise limits <\/td>\n<\/tr>\n
152<\/td>\nL.3 Test
L.3.1 General
L.3.2 Method a) \u2013 Verification of the complete assembly (10.10.2.3.5)
L.3.3 Method b) \u2013 Verification considering individual functional units separately and the complete assembly (10.10.2.3.6) <\/td>\n<\/tr>\n
153<\/td>\nL.3.4 Method c) \u2013 Verification considering individual functional units and the main and distribution busbars separately as well as the complete assembly (10.10.2.3.7)
L.4 Verification assessment
L.4.1 General
L.4.2 Single compartment assembly with a rated current (InA) not exceeding 630 A
L.4.3 Assembly with rated currents (InA) not exceeding 1\u200a600 A
L.5 Verification by comparison with a reference design <\/td>\n<\/tr>\n
154<\/td>\nFigure L.1 \u2013 Verification of temperature-rise <\/td>\n<\/tr>\n
155<\/td>\nAnnex M (normative) Verification of the short-circuit withstand strength of busbar structures by comparison with a reference design by calculation
M.1 General
M.2 Terms and definitions
Figure M.1 \u2013 Tested busbar structure (TS) <\/td>\n<\/tr>\n
156<\/td>\nM.3 Method of verification
Figure M.2 \u2013 Non tested busbar structure (NTS) <\/td>\n<\/tr>\n
157<\/td>\nM.4 Conditions for application
M.4.1 General
M.4.2 Peak short-circuit current
M.4.3 Thermal short-circuit strength
M.4.4 Busbar supports
M.4.5 Busbar connections, equipment connections
M.4.6 Angular busbar configurations
Figure M.3 \u2013 Angular busbar configuration with supports at the corners <\/td>\n<\/tr>\n
158<\/td>\nM.4.7 Calculations with special regard to conductor oscillation <\/td>\n<\/tr>\n
159<\/td>\nAnnex N (informative) List of notes concerning certain countries <\/td>\n<\/tr>\n
165<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Low-voltage switchgear and controlgear assemblies – 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>\n2021<\/td>\n170<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":374488,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[517,2641],"product_tag":[],"class_list":{"0":"post-374482","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\/374482","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\/374488"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=374482"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=374482"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=374482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}