BSI PD IEC TR 61439-0:2022 – TC:2023 Edition
$258.95
Tracked Changes. Low-voltage switchgear and controlgear assemblies – Guidance to specifying assemblies
| Published By | Publication Date | Number of Pages |
| BSI | 2023 | 176 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 107 | undefined |
| 109 | English CONTENTS |
| 113 | FOREWORD |
| 115 | INTRODUCTION |
| 117 | 1 Scope 2 Normative references |
| 118 | 3 Terms and definitions 4 Application of assemblies within the IEC 61439 series 4.1 General 4.2 Assembly design and verification |
| 120 | 4.3 Service conditions and interface characteristics 4.4 Application design 5 Electrical system 5.1 General 5.2 Earthing system |
| 121 | 5.3 Nominal voltage 5.4 Transient overvoltages |
| 123 | 5.5 Unusual voltage transients, temporary overvoltages 5.6 Rated frequency fn (Hz) Figures Figure 1 – Required rated impulse withstand voltage |
| 124 | 5.7 Additional on-site testing requirements: wiring, operational performance and function 6 Short-circuit withstand capability 6.1 General |
| 125 | 6.2 Prospective short-circuit current at supply terminals Icp (kA) |
| 126 | 6.3 Prospective short-circuit current in the neutral 6.4 Prospective short-circuit current in the protective circuit 6.5 Short-circuit protective device (SCPD) |
| 127 | 6.6 Coordination of short-circuit protective devices including external short-circuit protective device details |
| 128 | 6.7 Data associated with loads likely to contribute to the short-circuit current 6.8 Multiple supplies 7 Protection of persons against electric shock 7.1 General 7.2 Basic protection (protection against direct contact) 7.2.1 General |
| 129 | 7.2.2 Basic insulation provided by insulating material 7.2.3 Basic insulation by barriers or enclosures 7.3 Fault protection (protection against indirect contact) 7.3.1 General |
| 130 | 7.3.2 Requirements for the protective conductor to facilitate automatic disconnection of the supply |
| 131 | 7.3.3 Electrical separation 7.3.4 Class II protection (double or reinforced insulation) 8 Installation environment 8.1 General 8.2 Location type |
| 132 | 8.3 Protection against access to hazardous parts, ingress of solid foreign bodies and ingress of water (IP code) |
| 133 | Tables Table 1 – IP codes, first numeral |
| 134 | Table 2 – IP codes, second numeral |
| 135 | 8.4 External mechanical impact (IK code) Table 3 – IP codes, additional letter (optional) |
| 136 | 8.5 Resistance to radiation 8.5.1 General 8.5.2 Solar irradiance 8.5.3 Ultraviolet (UV) radiation 8.6 Resistance to corrosion |
| 137 | 8.7 Ambient air temperature 8.8 Maximum relative humidity |
| 138 | 8.9 Pollution degree |
| 139 | 8.10 Altitude 8.11 Electromagnetic compatibility (EMC) |
| 140 | 8.12 Special service conditions 8.12.1 General |
| 141 | 8.12.2 Climatic conditions 8.12.3 Protection against ingress of solid foreign bodies and ingress of water (IP code) 8.12.4 Shock, vibration, seismic occurrence and external mechanical impact (IK code) 8.12.5 Fire and explosion hazards 8.12.6 Exceptional overvoltages |
| 142 | 8.12.7 Polluted atmospheres 8.12.8 EMC environment 9 Installation method 9.1 General 9.2 Assembly type |
| 143 | 9.3 Portability 9.4 Maximum overall dimensions and weight 9.5 External conductor type(s) |
| 144 | 9.6 Direction(s) of external conductors 9.7 External conductor material 9.8 External line conductor, cross sections, and terminations 9.9 External PE, N, PEN, PEM, PEL conductors’ cross sections, and terminations |
| 145 | 9.10 Special terminal identification requirements 10 Storage and handling 10.1 General 10.2 Maximum dimensions and weight of transport units 10.3 Methods of transport (e.g. forklift, crane) |
| 146 | 10.4 Environmental conditions different from the service conditions 10.5 Packing details 11 Operating arrangements 11.1 General 11.2 Access to manually operated devices |
| 147 | 12 Maintenance and upgrade capabilities 12.1 General 12.2 Requirements related to accessibility for inspection and similar operations |
| 148 | 12.3 Requirements related to accessibility for maintenance in service by authorized persons 12.4 Requirements related to extension under voltage 12.5 Protection against direct contact with hazardous live internal parts during maintenance or upgrade |
| 149 | 12.6 Method of functional unit connection 12.7 Operating and maintenance gangways within an assembly 12.8 Internal separation (only relevant for assemblies in accordance with IEC 61439-2) 12.8.1 Fundamentals of separation |
| 150 | 12.8.2 Considerations when determining a form of separation |
| 151 | 12.8.3 Selecting the most appropriate form of separation |
| 152 | Figure 2 – Examples of separation included in IEC 61439-2 |
| 153 | 13 Current carrying capability 13.1 General 13.2 Rated current of the assembly InA (A) (maximum current allowable) |
| 154 | 13.3 Loading of outgoing circuits within an assembly |
| 155 | 13.4 Ratio of cross section of the neutral conductor to line conductors 13.4.1 General 13.4.2 Line conductors up to and including 16 mm2 13.4.3 Line conductors above 16 mm2 Table 4 – Assemblies and application ratings |
| 156 | 14 Assembly design and routine verification processes 14.1 Design verification 14.1.1 Object 14.1.2 Methods |
| 157 | 14.1.3 Records 14.2 Routine verification 14.2.1 General 14.2.2 Records |
| 158 | Annex A (informative)Cross section of copper cables suitablefor connection to terminals for external cables Table A.1 – Cross section of copper cables suitable for connection to terminals for external cables |
| 159 | Annex B (informative)Forms of internal separation (see 12.8) Table B.1 – Forms of internal separation |
| 160 | Figure B.1 – Symbols used in Figure B.2, Figure B.3 and Figure B.4 |
| 162 | Figure B.2 – Form 1 and Form 2 |
| 163 | Figure B.3 – Form 3 |
| 164 | Figure B.4 – Form 4 |
| 165 | Annex C (informative)Specification template for assemblies Table C.1 – Example of items typically subject to agreement betweenthe assembly manufacturer and the user |
| 169 | Annex D (informative)Optional information D.1 General Table D.1 – Examples of optional items subject to agreement betweenthe assembly manufacturer and the specifier |
| 170 | D.2 Electrical conditions D.2.1 Internal arc-fault considerations |
| 171 | D.2.2 Insulated busbars |
| 172 | Annex E (informative)List of notes concerning certain countries |
| 173 | Bibliography |
