1、 IEC 62040-1 Edition 2.0 2017-09 EXTENDED VERSION Uninterruptible power systems (UPS) Part 1: Safety requirements IEC 62040-1:2017-09 EXV(en) This Extended version of IEC 62040-1:2017 includes the provisions of the general rules of IEC 62477-1:2012 colour inside THIS PUBLICATION IS COPYRIGHT PROTECT
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11、PS) Part 1: Safety requirements INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 29.200 ISBN 978-2-8322-4886-7 This Extended version of IEC 62040-1:2017 includes the provisions of the general rules of IEC 62477-1:2012 Registered trademark of the International Electrotechnical Commission Warning! Make s
12、ure that you obtained this publication from an authorized distributor. colour inside 2 IEC 62040-1:2017 EXV IEC 2017 CONTENTS FOREWORD . 7 INTRODUCTION . 9 1 Scope 10 2 Normative references 10 3 Terms and definitions 14 4 Protection against hazards 27 5 Test requirements 95 6 Information and marking
13、 requirements . 138 Annex A (normative) Additional information for protection against electric shock . 151 Annex B (informative) Considerations for the reduction of the pollution degree 172 Annex C (informative) Symbols referred to in this document 173 Annex D (normative) Evaluation of clearance and
14、 creepage distances . 174 Annex E (informative) Altitude correction for clearances 181 Annex F (normative) Clearance and creepage distance determination for frequencies greater than 30 kHz 182 Annex G (informative) Cross-sections of round conductors 188 Annex H (informative) Guidelines for RCD compa
15、tibility . 189 Annex I (informative) Examples of overvoltage category reduction . 193 Annex J (informative) Burn thresholds for touchable surfaces 201 Annex K (informative) Table of electrochemical potentials . 204 Annex L (informative) Measuring instrument for touch current measurements 205 Annex M
16、 (informative) Test probes for determining access 206 Annex AA (informative) Minimum and maximum cross-section of copper conductors suitable for connection to terminals for external conductor 210 Annex BB (normative) Reference loads 211 Annex CC (normative) Ventilation of lead-acid battery compartme
17、nts 215 Annex DD (informative) Guidance for disconnection of batteries during shipment 218 Annex EE (informative) Short-time withstand current test procedure Guidance and typical values 220 Annex FF (informative) Maximum heating effect in transformer tests 224 Annex GG (normative) Requirements for t
18、he mounting means of rack-mounted equipment . 226 Bibliography 228 Figure 1 Touch time - d.c. peak voltage zones of ventricular fibrillation in dry skin condition . 37 Figure 2 Touch time - d.c. peak voltage zones of ventricular fibrillation in water-wet skin condition 37 Figure 3 Touch time - d.c.
19、peak voltage zones of ventricular fibrillation in saltwater- wet skin condition . 38 Figure 4 Example of a UPS assembly and its associated protective equipotential bonding. 42 Figure 5 Example of a UPS assembly and its associated protective equipotential bonding. 43 IEC 62040-1:2017 EXV IEC 2017 3 F
20、igure 6 Fire enclosure bottom openings below an unenclosed or partially enclosed fire-hazardous component. 71 Figure 7 Fire enclosure baffle construction. 72 Figure 8 Supported and unsupported enclosure parts 89 Figure 9 Impact test using a steel ball 101 Figure 10 Voltage test procedures . 109 Figu
21、re 11 Protective equipotential bonding impedance test for separate unit with power fed from the UPS with protection for the power cable . 115 Figure 12 Protective equipotential bonding impedance test for sub-assembly with accessible parts and with power fed from the UPS 116 Figure 13 Circuit for hig
22、h-current arcing test 131 Figure 14 Test fixture for hot-wire ignition test . 132 Figure 101 Examples of design of openings preventing vertical access . 40 Figure 102 Test circuit for load-induced change of reference potential Single- phase output . 119 Figure 103 Test circuit for load-induced chang
23、e of reference potential Three-phase output . 119 Figure 104 Voltage backfeed warning label 146 Figure A.1 Protection by DVC As with protective separation . 151 Figure A.2 Protection by means of protective impedance . 152 Figure A.3 Protection by using limited voltages 153 Figure A.4 Touch time- d.c
24、. voltage zones for dry skin condition 156 Figure A.5 Touch time- d.c. voltage zones for water-wet skin condition 156 Figure A.6 Touch time- d.c. voltage for saltwater-wet skin condition . 157 Figure A.7 Touch time- d.c. voltage zones of dry skin condition . 158 Figure A.8 Touch time- d.c. voltage z
25、ones of water-wet skin condition . 158 Figure A.9 Touch time- d.c. voltage zones of saltwater-wet skin condition 159 Figure A.10 Touch time- d.c. voltage zones of dry skin condition . 160 Figure A.11 Touch time- d.c. voltage zones of water-wet skin condition . 160 Figure A.12 Touch time- a.c. voltag
26、e zones for dry skin condition 161 Figure A.13 Touch time- a.c. voltage zones of water-wet skin condition . 162 Figure A.14 Touch time- a.c. voltage of saltwater-wet skin condition 162 Figure A.15 Touch time- a.c. voltage zones of dry skin condition . 163 Figure A.16 Touch time- a.c. voltage zones o
27、f water-wet skin condition . 164 Figure A.17 Touch time- a.c. voltage zones of saltwater-wet skin condition 164 Figure A.18 Touch time- a.c. voltage zones of dry skin condition . 165 Figure A.19 Touch time- a.c. voltage zones of water-wet skin condition . 166 Figure A.20 Typical waveform for a.c. wo
28、rking voltage . 167 Figure A.21 Typical waveform for d.c. working voltage . 167 Figure A.22 Typical waveform for pulsating working voltage . 168 Figure F.1 Diagram for dimensioning of clearances 183 Figure F.2 Diagram for dimensioning of creepage distances 185 Figure F.3 Permissible field strength f
29、or dimensioning of solid insulation according to Equation (1) 187 Figure H.1 Flow chart leading to selection of the RCD type upstream of a UPS 189 4 IEC 62040-1:2017 EXV IEC 2017 Figure H.2 Fault current waveforms in connections with power electronic converter devices . 191 Figure I.1 Basic insulati
30、on evaluation for circuits connected to the origin of the installation mains supply . 193 Figure I.2 Basic insulation evaluation for circuits connected to the mains supply 194 Figure I.3 Basic insulation evaluation for single and three phase equipment not permanently connected to the mains supply 19
31、4 Figure I.4 Basic insulation evaluation for circuits connected to the origin of the installation mains supply where internal SPDs are used 194 Figure I.5 Basic insulation evaluation for circuits connected to the mains supply where internal SPDs are used . 195 Figure I.6 Example of protective separa
32、tion evaluation for circuits connected to the mains supply where internal SPDs are used . 195 Figure I.7 Example of protective separation evaluation for circuits connected to the mains supply where internal SPDs are used . 196 Figure I.8 Example of protective separation evaluation for circuits conne
33、cted to the mains supply where internal SPDs are used . 196 Figure I.9 Basic insulation evaluation for circuits not connected directly to the mains supply . 197 Figure I.10 Basic insulation evaluation for circuits not connected directly to the supply mains . 197 Figure I.11 Functional insulation eva
34、luation within circuits affected by external transients 198 Figure I.12 Basic insulation evaluation for circuits both connected and not connected directly to the mains supply . 198 Figure I.13 Insulation evaluation for accessible circuit of DVC A 199 Figure I.14 UPS with mains and non-mains supply w
35、ithout galvanic separation 199 Figure I.15 Transformer (basic) isolated UPS inverter with SPD and transformer to reduce impulse voltage for functional and basic insulation. . 200 Figure J.1 Burn threshold spread when the skin is in contact with a hot smooth surface made of bare (uncoated) metal . 20
36、1 Figure J.2 Rise in the burn threshold spread from Figure J.1 for metals which are coated by shellac varnish of a thickness of 50 m, 100 m and 150 m 202 Figure J.3 Rise in the burn threshold spread from Figure J.1 for metals coated with the specific materials 202 Figure J.4 Burn threshold spread wh
37、en the skin is in contact with a hot smooth surface made of ceramics, glass and stone materials . 203 Figure J.5 Burn threshold spread when the skin is in contact with a hot smooth surface made of plastics . 203 Figure K.1 Electrochemical potentials (V) . 204 Figure L.1 Measuring instrument 205 Figu
38、re M.2 Jointed test finger (IPXXB) . 207 Figure M.3 Test rod 2,5 mm (IP3X) 208 Figure M.101 Jointed test finger (IP2X) 209 Figure BB.1 Reference resistive load . 211 Figure BB.2 Reference inductive-resistive load (series) . 212 Figure BB.3 Reference inductive-resistive load (parallel) . 212 Figure B
39、B.4 Reference capacitive-resistive load (series) 212 Figure BB.5 Reference capacitive-resistive load (parallel) 212 IEC 62040-1:2017 EXV IEC 2017 5 Figure BB.6 Reference non-linear load 213 Figure DD.1 Precautionary label for products shipped with the battery disconnected 218 Figure DD.2 Precautiona
40、ry label for products shipped with the battery connected . 219 Figure EE.1 3-wire test circuit for UPS short-time withstand current 220 Figure EE.2 4-wire test circuit for UPS short-time withstand current 221 Figure EE.3 2-wire test circuit for single phase UPS short-time withstand current . 222 Tab
41、le 1 Alphabetical list of terms . 14 Table 2 Selection of DVC for touch voltage to protect against ventricular fibrillation . 35 Table 3 Selection of body contact area 35 Table 4 Selection of humidity condition of the skin . 35 Table 5 Steady state voltage limits for the decisive voltage classes . 3
42、6 Table 6 Protection requirements for circuit under consideration . 39 Table 7 PE conductor cross-section a44 Table 8 Definitions of pollution degrees . 50 Table 9 Impulse withstand voltage and temporary overvoltage versus system voltage . 52 Table 10 Clearance distances for functional, basic or sup
43、plementary insulation . 58 Table 11 Creepage distances (in millimetres) . 60 Table 12 Generic materials for the direct support of uninsulated live parts . 62 Table 13 Permitted openings in fire enclosure bottoms 72 Table 14 Maximum measured total temperatures for internal materials and components 74
44、 Table 15 Maximum measured temperatures for accessible parts of the UPS 76 Table 16 Limits for sources without an overcurrent protective device . 77 Table 17 Limits for power sources with an overcurrent protective device 77 Table 19 Wire bending space from terminals to enclosure 86 Table 20 Thicknes
45、s of sheet metal for enclosures: carbon steel or stainless steel . 90 Table 21 Thickness of sheet metal for enclosures: aluminium, copper or brass . 91 Table 22 Test overview 97 Table 23 Pull values for handles and manual control securement . 103 Table 24 Impulse voltage test 105 Table 25 Impulse te
46、st voltage 106 Table 26 AC or d.c. test voltage for circuits connected directly to mains supply . 107 Table 27 A.c. or d.c. test voltage for circuits connected to non-mains supply without temporary overvoltages. 108 Table 28 Partial discharge test . 111 Table 29 Test duration for protective equipote
47、ntial bonding test . 117 Table 30 Environmental tests . 135 Table 31 Dry heat test (steady state) . 136 Table 32 Damp heat test (steady state) 137 Table 101 UPS input port configuration 32 Table 102 Overvoltage categories 51 Table 103 Maximum temperature limits for magnetic components during stored
48、energy mode of operation . 73 6 IEC 62040-1:2017 EXV IEC 2017 Table 104 Short-time withstand current 121 Table 105 Temperature limits for transformer windings 124 Table A.1 Selection of touch voltage sets to protect against ventricular fibrillation . 154 Table A.2 Selection of touch voltage sets to protect against muscular reaction 155 Table A.3 Selection of touch voltage sets to protect against startle reaction . 155 Table A.4 Examples for protection against electrical shock 170 Table A.101 Comparison of limits of working voltage . 171 Table C.1 Symbols used 173 Table D.1 Width of grooves
