Adjustable speed electrical power drive systems - Part 5-1: Safety requirements - Electrical, thermal and energy

IEC 61800-5-1:2022 specifies requirements for adjustable speed electrical power drive systems (PDS) or their elements, with respect to electrical, thermal, fire, mechanical, energy and other relevant hazards. It does not cover the driven equipment except for interface requirements. It applies to adjustable speed electrical PDS which include the power conversion, basic drive module (BDM)/complete drive module (CDM) control, and a motor or motors.
Excluded are traction and electric vehicle BDM/CDM.
It applies to low-voltage adjustable speed electrical PDS intended to feed a motor or motors from a BDM/CDM connected to phase-to-phase voltages of up to and including 1,0 kV AC (50 Hz or 60 Hz) and up to and including 1,5 kV DC. It also applies to high-voltage adjustable speed electrical PDS intended to feed a motor or motors from a BDM/CDM connected to phase-to-phase voltages of up to and including 35 kV AC (50 Hz or 60 Hz) and up to and including 52 kV DC.
This document also applies to PDS which intentionally emits or receives radio waves for the purpose of radio communication.
This edition includes the following significant technical changes with respect to the previous edition: a) harmonization with IEC 62477-1:2022; b) harmonization with UL 61800-5-1 and CSA C22.2 No. 274, including an annex with a list of national deviation which was considered not possible to harmonize within a reasonable timeframe; c) more detailed information about the evaluation of components according to this document and relevant safety component standards; d) updated requirement for mechanical hazards including multiple IP ratings.

Entraînements électriques de puissance à vitesse variable - Partie 5-1: Exigences de sécurité - Électrique, thermique et énergétique

L’IEC 61800-5-1:2022 spécifie les exigences relatives aux entraînements électriques de puissance (PDS – power drive system) à vitesse variable ou leurs éléments, en ce qui concerne les dangers électriques, thermiques, d'incendie, mécaniques et énergétiques, et d'autres risques appropriés. Elle ne couvre pas le matériel entraîné, à l’exception des exigences relatives aux interfaces. Elle s'applique aux PDS à vitesse variable qui incluent la conversion de puissance, la commande de module d’entraînement principal (BDM)/module d’entraînement complet (CDM) et un ou plusieurs moteurs.
Les BDM/CDM pour les véhicules électriques et les véhicules de traction sont exclus.
Elle s'applique aux PDS électriques à vitesse variable basse tension destinés à alimenter un ou plusieurs moteurs à partir d'un BDM/CDM relié à des tensions entre phases allant jusqu'à 1,0 kV inclus en courant alternatif (50 Hz ou 60 Hz) et jusqu'à 1,5 kV inclus en courant continu.
Elle s'applique également aux PDS électriques à vitesse variable haute tension destinés à alimenter un ou plusieurs moteurs à partir d'un BDM/CDM relié à des tensions entre phases allant jusqu'à 35 kV inclus en courant alternatif (50 Hz ou 60 Hz) et jusqu'à 52 kV inclus en courant continu.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:  
harmonisation avec l'IEC 62477-1:2022;
harmonisation avec l'UL 61800-5-1 et la CSA C22.2 No 274, incluant une annexe contenant une liste des divergences nationales qui ont été considérées comme étant impossibles à harmoniser dans un délai raisonnable;
informations plus détaillées relatives à l'évaluation des composants selon l'IEC 61800-5-1 et les normes pertinentes relatives aux composants de sécurité;
exigences mises à jour concernant les dangers mécaniques, y compris plusieurs classifications IP.

General Information

Status
Published
Publication Date
30-Aug-2022
Current Stage
PPUB - Publication issued
Completion Date
31-Aug-2022
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IEC 61800-5-1
Edition 3.0 2022-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Adjustable speed electrical power drive systems –
Part 5-1: Safety requirements – Electrical, thermal and energy
Entraînements électriques de puissance à vitesse variable –
Partie 5-1: Exigences de sécurité – Électrique, thermique et énergétique
IEC 61800-5-1:2022-08(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61800-5-1
Edition 3.0 2022-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Adjustable speed electrical power drive systems –
Part 5-1: Safety requirements – Electrical, thermal and energy
Entraînements électriques de puissance à vitesse variable –
Partie 5-1: Exigences de sécurité – Électrique, thermique et énergétique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.110; 29.130.99; 29.200 ISBN 978-2-8322-4155-4

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---------------------- Page: 3 ----------------------
– 2 – IEC 61800-5-1:2022 © IEC 2022
CONTENTS

FOREWORD ......................................................................................................................... 15

INTRODUCTION ................................................................................................................... 17

0.1 General ................................................................................................................. 17

0.2 Feedback from industry and national committees .................................................. 19

0.3 Requirement covered by other relevant parts of the IEC 61800 series .................. 19

1 Scope ............................................................................................................................ 20

2 Normative references .................................................................................................... 20

3 Terms and definitions .................................................................................................... 24

4 Protection against hazards ............................................................................................ 40

4.1 General ................................................................................................................. 40

4.2 Single-fault conditions and abnormal operating conditions .................................... 41

4.3 Short-circuit and overload protection ..................................................................... 42

4.3.1 General ......................................................................................................... 42

4.3.2 Input short-circuit rating and available output short-circuit current ................. 43

4.3.3 Short-circuit coordination (upstream protection) ............................................. 44

4.3.4 Protection by several devices ........................................................................ 44

4.3.5 Motor overload and overtemperature protection ............................................. 45

4.3.6 BDM/CDM providing current limiting control ................................................... 46

4.4 Protection against electric shock ........................................................................... 46

4.4.1 General ......................................................................................................... 46

4.4.2 Decisive voltage class (DVC) ......................................................................... 46

4.4.3 Provision for basic protection ......................................................................... 53

4.4.4 Provision for fault protection .......................................................................... 56

4.4.5 Provisions for enhanced protection ................................................................ 64

4.4.6 Protective measures ...................................................................................... 65

4.4.7 Insulation ....................................................................................................... 67

4.4.8 Compatibility with residual current-operated protective devices (RCD) ........... 88

4.4.9 Capacitor discharge ....................................................................................... 89

4.4.10 Access conditions for high-voltage sections of BDM/CDM/PDS

(interlock) ...................................................................................................... 89

4.5 Protection against electrical energy hazards ......................................................... 91

4.5.1 General ......................................................................................................... 91

4.5.2 Determination of hazardous electrical energy level ........................................ 92

4.5.3 Limited power sources ................................................................................... 92

4.6 Protection against fire and thermal hazards .......................................................... 94

4.6.1 General ......................................................................................................... 94

4.6.2 Circuits and components representing a fire hazard ...................................... 94

4.6.3 Selection of components to mitigate the risk of a fire hazard ......................... 94

4.6.4 Fire protection provided by enclosures .......................................................... 95

4.6.5 Temperature limits ......................................................................................... 96

4.7 Protection against mechanical hazards ................................................................. 98

4.7.1 General ......................................................................................................... 98

4.7.2 Critical torsional speed .................................................................................. 99

4.7.3 Transient torque analysis ............................................................................... 99

4.7.4 Specific requirements for liquid cooled BDM/CDM/PDS ................................. 99

4.7.5 Mechanical hazards from rotating parts ....................................................... 101

4.7.6 Sharp edges ................................................................................................ 102

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IEC 61800-5-1:2022 © IEC 2022 – 3 –

4.8 BDM/CDM/PDS with multiple sources of supply .................................................. 102

4.8.1 General ....................................................................................................... 102

4.8.2 Low-voltage DC link sharing ........................................................................ 103

4.9 Protection against environmental stresses .......................................................... 103

4.9.1 General ....................................................................................................... 103

4.9.2 Protection against corrosion ........................................................................ 105

4.10 Protection against excessive acoustic noise hazards .......................................... 105

4.10.1 General ....................................................................................................... 105

4.10.2 Acoustic noise level ..................................................................................... 105

4.11 Wiring and connections ....................................................................................... 106

4.11.1 General ....................................................................................................... 106

4.11.2 Insulation of conductors ............................................................................... 107

4.11.3 Stranded wire .............................................................................................. 109

4.11.4 Routing and clamping .................................................................................. 109

4.11.5 Identification of conductors and terminals of mains supply and non-

mains supply ............................................................................................... 109

4.11.6 Splices and connections .............................................................................. 110

4.11.7 Accessible connections ............................................................................... 110

4.11.8 Interconnections between parts of the PDS ................................................. 111

4.11.9 Supply connections for permanently connected BDM/CDM/PDS .................. 111

4.11.10 Supply connections for pluggable BDM/CDM/PDS ....................................... 111

4.11.11 Terminals .................................................................................................... 113

4.11.12 Provisions for connecting the shield of shielded wire or cable ...................... 116

4.12 Mechanical requirements for enclosures ............................................................. 117

4.12.1 General ....................................................................................................... 117

4.12.2 Handles and manual controls ....................................................................... 117

4.12.3 Cast metal enclosure ................................................................................... 118

4.12.4 Sheet metal enclosure ................................................................................. 118

4.12.5 Stability for floor-standing BDM/CDM/PDS ................................................... 121

4.12.6 Wiring strain relief ....................................................................................... 121

4.12.7 Polymeric enclosure stress relief ................................................................. 122

4.12.8 Internal condensation or accumulation of water ........................................... 122

4.12.9 Polymeric outdoor enclosure ultra-violet (UV) resistance ............................. 122

4.13 Components ....................................................................................................... 123

4.13.1 Components general.................................................................................... 123

4.13.2 Components representing a fire hazard ....................................................... 123

4.13.3 Components being part of an enclosure ....................................................... 123

4.13.4 Components representing a mechanical hazard ........................................... 124

4.13.5 Wound components ..................................................................................... 124

4.13.6 Protective devices ....................................................................................... 124

4.14 Protection against electromagnetic fields ............................................................ 124

5 Test requirements........................................................................................................ 124

5.1 General ............................................................................................................... 124

5.1.1 Test objectives and classification ................................................................. 124

5.1.2 Selection of test samples ............................................................................. 125

5.1.3 Sequence of tests ........................................................................................ 125

5.1.4 Earthing conditions ...................................................................................... 125

5.1.5 General conditions for tests ......................................................................... 125

5.1.6 Compliance ................................................................................................. 126

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– 4 – IEC 61800-5-1:2022 © IEC 2022

5.1.7 Test overview .............................................................................................. 126

5.2 Test specifications .............................................................................................. 129

5.2.1 Visual inspections (type test, routine test and sample test) .......................... 129

5.2.2 Mechanical tests .......................................................................................... 129

5.2.3 Electrical tests ............................................................................................. 138

5.2.4 Abnormal operation and simulated faults tests ............................................. 157

5.2.5 Material tests ............................................................................................... 170

5.2.6 Environmental tests (type tests) ................................................................... 174

5.2.7 Hydrostatic pressure test (type test, routine test) ......................................... 180

5.2.8 Electromagnetic fields (EMF) test (type test) ............................................... 181

6 Information and marking requirements ......................................................................... 181

6.1 General ............................................................................................................... 181

6.1.1 Overview ..................................................................................................... 181

6.1.2 Documentation in electronic form ................................................................. 184

6.1.3 Installation Instructions ................................................................................ 185

6.2 Information for selection ..................................................................................... 185

6.2.1 General ....................................................................................................... 185

6.2.2 Instructions and markings pertaining to accessories .................................... 187

6.3 Information for installation and commissioning .................................................... 187

6.3.1 General ....................................................................................................... 187

6.3.2 Mechanical considerations ........................................................................... 187

6.3.3 Environment ................................................................................................ 187

6.3.4 Handling and mounting ................................................................................ 188

6.3.5 Enclosure temperature ................................................................................ 188

6.3.6 Open type BDM/CDM .................................................................................. 188

6.3.7 Connections ................................................................................................ 189

6.3.8 Commissioning ............................................................................................ 191

6.3.9 Protection requirements ............................................................................... 191

6.3.10 Motor and driven equipment ........................................................................ 195

6.3.11 Field installed components .......................................................................... 196

6.4 Information for intended use ............................................................................... 196

6.4.1 General ....................................................................................................... 196

6.4.2 Adjustment .................................................................................................. 196

6.4.3 Labels, signs, symbols and signals .............................................................. 196

6.4.4 Hot surface .................................................................................................. 198

6.4.5 Control and device marking ......................................................................... 198

6.4.6 Stability for floor-standing BDM/CDM/PDS ................................................... 199

6.5 Supplementary information ................................................................................. 199

6.5.1 General ....................................................................................................... 199

6.5.2 Capacitor discharge ..................................................................................... 199

6.5.3 Special operation mode – Auto restart/bypass connection ........................... 200

6.5.4 Other hazards .............................................................................................. 200

6.5.5 BDM/CDM/PDS with multiple sources of supply ........................................... 200

6.5.6 PT/CT connection ........................................................................................ 200

6.5.7 Access conditions for high-voltage BDM/CDM/PDS during maintenance ...... 200

Annex A (normative) Additional information for protection against electric shock ............... 202

A.1 General ............................................................................................................... 202

A.2 Protection by means of DVC As .......................................................................... 202

A.3 Protection by means of protective impedance ..................................................... 203

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IEC 61800-5-1:2022 © IEC 2022 – 5 –

A.4 Protection by using limited voltages .................................................................... 204

A.5 Evaluation of the working voltage of circuits ........................................................ 204

A.5.1 General ....................................................................................................... 204

A.5.2 Classification of the working voltage ............................................................ 205

A.5.3 AC working voltage ...................................................................................... 205

A.5.4 DC working voltage ..................................................................................... 206

A.5.5 Pulsating working voltage ............................................................................ 207

A.6 The concept of protective measures according to 4.4 .......................................... 208

A.6.1 General ....................................................................................................... 208

A.6.2 General concept of protection against electric shock ................................... 209

A.6.3 Examples of the use of elements of protective measures ............................. 210

Annex B (informative) Considerations for the reduction of the pollution degree .................. 215

B.1 General ............................................................................................................... 215

B.2 Factors influencing the pollution degree .............................................................. 215

B.3 Reduction of influencing factors .......................................................................... 215

Annex C (informative) Symbols referred ............................................................................. 216

C.1 Symbols used ..................................................................................................... 216

C.2 Determination of contrast .................................................................................... 218

Annex D (normative) Evaluation of clearance and creepage distances ............................... 219

D.1 Measurement ...................................................................................................... 219

D.2 Relationship of measurement to pollution degree ................................................ 219

D.3 Examples ............................................................................................................ 219

Annex E (normative) Altitude correction for clearances ...................................................... 226

E.1 Correction factor for clearances at altitudes above 2 000 m ................................ 226

E.2 Test voltages for verifying clearances at different altitudes ................................. 226

Annex F (normative) Clearance and creepage distance determination for frequencies

greater than 30 kHz ............................................................................................................ 228

F.1 General influence of the frequency on the withstand characteristics .................... 228

F.2 Clearance ........................................................................................................... 228

F.2.1 General ....................................................................................................... 228

F.2.2 Clearance for inhomogenous fields .............................................................. 229

F.2.3 Clearance for approximately homogenous fields .......................................... 230

F.3 Creepage distance .............................................................................................. 231

F.4 Solid insulation ................................................................................................... 232

F.4.1 General ....................................................................................................... 232

F.4.2 Approximately uniform field distribution without air gaps or voids ................. 232

F.4.3 Other cases ................................................................................................. 233

Annex G (informative) Cross-sections of round conductors ................................................ 234

Annex H (informative) Guidelines for RCD compatibility ..................................................... 235

H.1 Selection of RCD type ......................................................................................... 235

H.2 Fault current waveforms...................................................................................... 236

Annex I (informative) Examples of overvoltage category reduction ..................................... 240

I.1 General ............................................................................................................... 240

I.2 Protection to the surroundings (see 4.4.7.2) ........................................................ 240

I.2.1 Circuits connected directly to mains supply (see 4.4.7.2.3) .......................... 240

I.2.2 Circuits connected to the non-mains supply (see 4.4.7.2.4) ......................... 243

I.2.3 Insulation between circuits (see 4.4.7.2.5) ................................................... 243

I.3 Functional insulation (see 4.4.7.3) ...................................................................... 244

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– 6 – IEC 61800-5-1:2022 © IEC 2022

I.4 Further examples ................................................................................................ 244

Annex J (informative) Burn thresholds for touchable surfaces ............................................ 246

J.1 General ............................................................................................................... 246

J.2 Burn thresholds .................................................................................................. 246

Annex K (informative) Table of electrochemical potentials ................................................. 249

Annex L (informative) Measuring instrument for touch current measurements .................... 250

L.1 Measuring test circuit .......................................................................................... 250

L.2 Requirements for measuring instruments ............................................................ 250

Annex M (normative) Test probes for determining access .................................................. 251

Annex N (informative) Guidance regarding short-circuit current ......................................... 254

Annex O (informative) Guidance for determination of clearance and creepage distance ..... 255

O.1 Guideline for determination of clearance ............................................................. 255

O.2 Guideline for determination of creepage distance ..........
...

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