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

IEC 61800-5-1:2007 It specifies requirements for adjustable speed power drive systems, or their elements, with respect to electrical, thermal and energy safety considerations. It does not cover the driven equipment except for interface requirements. It applies to adjustable speed electric drive systems which include the power conversion, drive control, and motor or motors. Excluded are traction and electric vehicle drives. It applies to d.c. drive systems connected to line voltages up to 1 kV a.c., 50 Hz or 60 Hz and a.c. drive systems with converter input voltages up to 35 kV, 50 Hz or 60 Hz and output voltages up to 35 kV. The major areas of change in this edition are the following:
- addition of alphabetical Table 1 in Clause 3;
- addition of Table 2 in 4.1 for relevance to PDS/CDM/BDM;
- addition of Table 4 summary of decisive voltage class requirements;
- expansion of subclause on protective bonding (4.3.5.3);
- clarification of distinction between touch current and protective conductor current;
- revision of section on insulation (now 4.3.6) to include solid insulation;
- addition of overvoltage categories I and II to HV insulation voltage;
- revision of section on Solid insulation (now 4.3.6.8);
- addition of high-frequency insulation requirements (4.3.6.9, Annex E);
- addition of requirements for liquid-cooled PDS (4.4.5);
- addition of climatic and vibration tests (5.2.6);
- clarification of voltage test procedure to avoid over-stress of basic insulation (5.2.3.2.3);
- revision of short-circuit test requirement for large, high-voltage and one-off PDS (now 5.2.3.6);
- addition of informative Annex B for overvoltage category reduction.

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

L'IEC 61800-5-1:2007 spécifie les exigences pour les entraînements électriques de puissance à vitesse variable, ou leurs éléments, en ce qui concerne les considérations de sécurité électrique, thermique et énergétique. Elle ne couvre pas l'équipement entraîné, à l'exception des exigences pour les interfaces. Elle s'applique aux systèmes d'entraînement électrique à vitesse variable qui comprennent le convertisseur de puissance, le système de commande et un ou plusieurs moteurs. En sont exclus les entraînements pour les véhicules électriques et la traction. Elle s'applique aux systèmes d'entraînement c.c. connectés à des réseaux de tension inférieure ou égale à 1 kV c.a., 50 Hz ou 60 Hz et aux systèmes d'entraînement c.a. avec des tensions d'entrée de convertisseur inférieures ou égales à 35 kV, 50 Hz ou 60 Hz et de sortie de convertisseur inférieures ou égales à 35 kV. Les principaux domaines de modification dans cette deuxième édition sont les suivants:
- ajout du Tableau 1 alphabétique à l'Article 3,
- ajout du Tableau 2 en 4.1 pour la pertinence par rapport aux EEP/MEC/MEP,
- ajout du Tableau 4, résumé des exigences des classes de tension déterminante,
- extension du paragraphe sur les liaisons de protection (4.3.5.3),
- éclaircissement de la différence entre courant de contact et courant dans le conducteur de protection,
- révision du paragraphe sur l'isolement (désormais 4.3.6) pour inclure l'isolation solide,
- ajout de la catégorie de surtension I et II à la tension d'isolement des circuits haute tension,
- révision du paragraphe sur l'isolation solide (désormais 4.3.6.8),
- ajout d'exigences pour l'isolement haute fréquence (4.3.6.9, Annexe E),
- ajout d'exigences pour l'EEP à refroidissement par liquide (4.4.5),
- ajout d'essais climatiques et de vibration (5.2.6),
- éclaircissement de la procédure d'essai de tension pour éviter les sur-contraintes de l'isolement principal (5.2.3.2.3),
- révision de l'exigence d'essai de court-circuit pour un EEP important, à haute tension et unique (désormais 5.2.3.6),
- ajout de l'Annexe B informative pour la réduction de la catégorie de surtension.

General Information

Status
Published
Publication Date
15-Jul-2007
Current Stage
PPUB - Publication issued
Start Date
16-Jul-2007
Completion Date
16-Jul-2007
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INTERNATIONAL IEC
STANDARD
CEI
61800-5-1
NORME
Second edition
INTERNATIONALE
Deuxième édition
2007-07
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 –
Electrique, thermique et énergétique
Reference number
Numéro de référence
IEC/CEI 61800-5-1:2007
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
INTERNATIONAL IEC
STANDARD
CEI
61800-5-1
NORME
Second edition
INTERNATIONALE
Deuxième édition
2007-07
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 –
Electrique, thermique et énergétique
PRICE CODE
CODE PRIX
Commission Electrotechnique Internationale
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
Pour prix, voir catalogue en vigueur
---------------------- Page: 3 ----------------------
– 2 – 61800-5-1 © IEC:2007
CONTENTS

FOREWORD...........................................................................................................................5

Scope...............................................................................................................................7

2 Normative references........................................................................................................7

3 Terms and definitions .....................................................................................................10

4 Protection against electric shock, thermal, and energy hazards .......................................16

4.1 General .................................................................................................................16

4.2 Fault conditions .....................................................................................................17

4.3 Protection against electric shock............................................................................18

4.4 Protection against thermal hazards ........................................................................51

4.5 Protection against energy hazards .........................................................................56

4.6 Protection against environmental stresses .............................................................57

5 Test requirements...........................................................................................................57

5.1 General .................................................................................................................57

5.2 Test specifications.................................................................................................60

6 Information and marking requirements ............................................................................82

6.1 General .................................................................................................................82

6.2 Information for selection ........................................................................................85

6.3 Information for installation and commissioning .......................................................85

6.4 Information for use ................................................................................................89

6.5 Information for maintenance ..................................................................................91

Annex A (informative) Examples of protection in case of direct contact .................................93

Annex B (informative) Examples of overvoltage category reduction.......................................95

Annex C (normative) Measurement of clearance and creepage distances ........................... 101

Annex D (informative) Altitude correction for clearances ..................................................... 107

Annex E (informative) Clearance and creepage distance determination for frequencies

greater than 30 kHz............................................................................................................. 109

Annex F (informative) Cross-sections of round conductors.................................................. 112

Annex G (informative) Guidelines for RCD compatibility...................................................... 113

Annex H (informative) Symbols referred to in this part of IEC 61800 ................................... 116

Bibliography ........................................................................................................................ 117

Figure 1 – PDS hardware configuration within an installation..................................................16

Figure 2 – Typical waveform for a.c. working voltage .............................................................19

Figure 3 – Typical waveform for d.c. working voltage .............................................................20

Figure 4 – Typical waveform for pulsating working voltage.....................................................20

Figure 5 – Examples for protection against direct contact ......................................................22

Figure 6 – Example of protective bonding ..............................................................................26

Figure 7 – Voltage limits under fault conditions......................................................................28

Figure 8 – Voltage test procedures ........................................................................................68

Figure 9 – Circuit for high-current arcing test.........................................................................77

---------------------- Page: 4 ----------------------
61800-5-1 © IEC:2007 – 3 –

Figure 10 – Test fixture for hot-wire ignition test ....................................................................78

Figure A.1 – Protection by DVC A, with protective separation................................................93

Figure A.2 – Protection by means of protective impedance ....................................................94

Figure A.3 – Protection by using limited voltages ...................................................................94

Figure B.1 – Basic insulation evaluation for circuits connected directly to the origin of

the installation supply mains..................................................................................................95

Figure B.2 – Basic insulation evaluation for circuits connected directly to the supply

mains....................................................................................................................................96

Figure B.3 – Basic insulation evaluation for equipment not permanently connected to the

supply mains.........................................................................................................................96

Figure B.4 – Basic insulation evaluation for circuits connected directly to the origin of

the installation supply mains where internal SPDs are used ...................................................96

Figure B.5 - Basic insulation evaluation for circuits connected directly to the supply

mains where internal SPDs are used .....................................................................................97

Figure B.6 – Example of protective separation evaluation for circuits connected directly

to the supply mains where internal SPDs are used.................................................................97

Figure B.7 – Example of protective separation evaluation for circuits connected directly

to the supply mains where internal SPDs are used.................................................................97

Figure B.8 Example of protective separation evaluation for circuits connected directly to

the supply mains where internal SPDs are used.....................................................................98

Figure B.9 – Basic insulation evaluation for circuits not connected directly to the supply

mains....................................................................................................................................98

Figure B.10 – Basic insulation evaluation for circuits not connected directly to the supply

mains....................................................................................................................................98

Figure B.11 – Functional insulation evaluation within circuits affected by external

transients..............................................................................................................................99

Figure B.12 – Basic insulation evaluation for circuits both connected and not connected

directly to the supply mains ...................................................................................................99

Figure B.13 – Insulation evaluation for accessible circuit of DVC A ...................................... 100

Figure G.1 – Flow chart leading to selection of the RCD/RCM type upstream of a PDS ........ 113

Figure G.2 – Fault current waveforms in connections with semiconductor devices................ 114

Table 1 – Alphabetical list of terms........................................................................................10

Table 2 – Relevance of requirements to PDS/CDM/BDM........................................................17

Table 3 – Summary of the limits of the decisive voltage classes.............................................18

Table 4 – Protection requirements for considered circuit........................................................19

Table 5 – Protective earthing conductor cross-section ...........................................................28

Table 6 – Definitions of pollution degrees ..............................................................................31

Table 7 – Insulation voltage for low voltage circuits................................................................33

Table 8 – Insulation voltage for high voltage circuits ..............................................................33

Table 9 – Clearance distances ..............................................................................................37

Table 10 – Creepage distances (mm) ....................................................................................39

Table 11 – Thickness of sheet metal for enclosures: carbon steel or stainless steel ..............45

Table 12 – Thickness of sheet metal for enclosures: aluminium, copper or brass ..................46

Table 13 – Wire bending space from terminals to enclosure ..................................................49

Table 14 – Generic materials for the direct support of uninsulated live parts ..........................52

Table 15 – Maximum measured temperatures for internal materials and components.............54

---------------------- Page: 5 ----------------------
– 4 – 61800-5-1 © IEC:2007

Table 16 – Maximum measured temperatures for external parts of the CDM ..........................55

Table 17 – Test overview ......................................................................................................59

Table 18 – Impulse voltage test.............................................................................................63

Table 19 – Impulse test voltage for low-voltage PDS .............................................................64

Table 20 – Impulse test voltage for high-voltage PDS ............................................................64

Table 21 – A.C. or d.c. test voltage for circuits connected directly to low voltage mains..........65

Table 22 – A.C. or d.c. test voltage for circuits connected directly to high voltage mains ........66

Table 23 – A.C. or d.c. test voltage for circuits not connected directly to the mains ................67

Table 24 – Partial discharge test ...........................................................................................70

Table 25 – Dry heat test (steady state) ..................................................................................80

Table 26 – Damp heat test (steady state) ..............................................................................81

Table 27 – Vibration test .......................................................................................................82

Table 28 – Information requirements .....................................................................................84

Table C.1 – Width of grooves by pollution degree ................................................................ 101

Table D.1 – Correction factor for clearances at altitudes between 2 000 m and 20 000 m

(see 4.3.6.4.1) .................................................................................................................... 107

Table D.2 – Test voltages for verifying clearances at different altitudes................................ 107

Table E.1 – Minimum values of clearances in air at atmospheric pressure for

inhomogeneous field conditions (Table 1 of IEC 60664-4).................................................... 110

Table E.2 – Minimum values of creepage distances for different frequency ranges

(Table 2 of IEC 60664-4).....................................................................................................111

Table F.1 – Standard cross-sections of round conductors .................................................... 112

Table H.1 – Symbols used...................................................................................................116

---------------------- Page: 6 ----------------------
61800-5-1 © IEC:2007 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS –
Part 5-1: Safety requirements –
Electrical, thermal and energy
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any

equipment declared to be in conformity with an IEC Publication.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61800-5-1 has been prepared by subcommittee 22G: Semi-

conductor power converters for adjustable speed electric drive systems, of IEC technical

committee 22: Power electronic systems and equipment.

This second edition cancels and replaces the first edition published in 2003. It constitutes a

technical revision.
The major areas of change in this edition are the following:
a) addition of alphabetical Table 1 in Clause 3;
b) addition of Table 2 in 4.1 for relevance to PDS/CDM/BDM;
c) addition of Table 4 summary of decisive voltage class requirements;
d) expansion of subclause on protective bonding (4.3.5.3);
---------------------- Page: 7 ----------------------
– 6 – 61800-5-1 © IEC:2007

e) clarification of distinction between touch current and protective conductor current;

f) revision of section on insulation (now 4.3.6) to include solid insulation;
g) addition of overvoltage categoruies I and II to HV insulation voltage;
h) revision of section on Solid insulation (now 4.3.6.8)
i) addition of high-frequency insulation requirements (4.3.6.9, Annex E);
j) addition of requirements for liquid-cooled PDS (4.4.5);
k) addition of climatic and vibration tests (5.2.6);

l) clarification of voltage test procedure to avoid over-stress of basic insulation (5.2.3.2.3);

m) revision of short-circuit test requirement for large, high-voltage and one-off PDS (now

5.2.3.6);
n) addition of informative Annex B for overvoltage category reduction.
The text of this standard is based on the following documents:
FDIS Report on voting
22G/178/FDIS 22G/181/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts of the IEC 61800 series, published under the general title Adjustable speed

electrical power drive systems, can be found on the IEC website.
Terms in italics in the text are defined in Clause 3.

The committee has decided that the contents of this publication will remain unchanged until the

maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
---------------------- Page: 8 ----------------------
61800-5-1 © IEC:2007 – 7 –
ADJUSTABLE SPEED ELECTRICAL POWER DRIVE SYSTEMS –
Part 5-1: Safety requirements –
Electrical, thermal and energy
1 Scope

This part of IEC 61800 specifies requirements for adjustable speed power drive systems, or

their elements, with respect to electrical, thermal and energy safety considerations. It does not

cover the driven equipment except for interface requirements. It applies to adjustable speed

electric drive systems which include the power conversion, drive control, and motor or motors.

Excluded are traction and electric vehicle drives. It applies to d.c. drive systems connected to

line voltages up to 1 kV a.c., 50 Hz or 60 Hz and a.c. drive systems with converter input

voltages up to 35 kV, 50 Hz or 60 Hz and output voltages up to 35 kV.

Other parts of IEC 61800 cover rating specifications, EMC, functional safety, etc.

The scope of this part of IEC 61800 does not include devices used as component parts of a

PDS if they comply with the safety requirements of a relevant product standard for the same

environment. For example, motors used in PDS shall comply with the relevant parts of

IEC 60034.

Unless specifically stated, the requirements of this International Standard apply to all parts of

the PDS, including the CDM/BDM (see Figure 1).

NOTE In some cases, safety requirements of the PDS (for example, protection against direct contact) can

necessitate the use of special components and/or additional measures.
2 Normative references

The following referenced documents are indispensable for the application of this document. For

dated references, only the edition cited applies. For undated references, the latest edition of

the referenced document (including any amendments) applies.

NOTE This does not mean that compliance is required with all clauses of the referenced documents, but rather

that this international standard makes a reference that cannot be understood in the absence of the referenced

document.
IEC 60034 (all parts), Rotating electrical machines
IEC 60034-1, Rotating electrical machines – Part 1: Rating and performance

IEC 60034-5, Rotating electrical machines – Part 5: Degrees of protection provided by the

integral design of rotating electrical machines (IP code) - Classification

IEC 60050-111, International Electrotechnical Vocabulary (IEV) – Chapter 111: Physics and

chemistry
---------------------- Page: 9 ----------------------
– 8 – 61800-5-1 © IEC:2007

IEC 60050-151, International Electrotechnical Vocabulary (IEV) – Part 151: Electrical and

magnetic devices
IEC 60050-161, International Electrotechnical Vocabulary (IEV) – Chapter 161:
Electromagnetic compatibility

IEC 60050-191, International Electrotechnical Vocabulary (IEV) – Chapter 191: Dependability

and quality of service

IEC 60050-441, International Electrotechnical Vocabulary (IEV) – Chapter 441: Switchgear,

controlgear and fuses

IEC 60050-442, International Electrotechnical Vocabulary (IEV) – Part 442: Electrical

accessories

IEC 60050-551, International Electrotechnical Vocabulary (IEV) – Part 551: Power electronics

IEC 60050-601, International Electrotechnical Vocabulary (IEV) – Chapter 601: Generation,

transmission and distribution of electricity – General

IEC 60060-1:1989, High-voltage test techniques – Part 1: General definitions and test

requirements
IEC 60068-2-2:1974, Environmental testing – Part 2: Tests. Tests B: Dry heat

IEC 60068-2-6, Environmental testing – Part 2: Tests – Test Fc: Vibration (sinusoidal)

IEC 60068-2-78, Environmental testing – Part 78: Tests – Test Cab: Damp heat, steady state

IEC 60112:2003, Method for the determination of the proof and the comparative tracking

indices of solid insulating materials
IEC 60204-11, Safety of machinery – Electrical equipment of machines – Part 11:

Requirements for HV equipment for voltages above 1 000 V a.c. or 1 500 V d.c. and not

exceeding 36 kV
IEC 60309, Plugs, socket-outlets and couplers for industrial purposes

IEC 60364-1, Low-voltage electrical installations – Part 1: Fundamental principles, assessment

of general characteristics, definitions

IEC 60364-5-54:2002, Electrical installations of buildings – Part 5-54: Selection and erection of

electrical equipment – Earthing arrangements, protective conductors and protective bonding

conductors
IEC 60417, Graphical symbols for use on equipment
IEC 60529:1989, Degrees of protection provided by enclosures (IP code)
IEC 60617, Graphical symbols for diagrams
---------------------- Page: 10 ----------------------
61800-5-1 © IEC:2007 – 9 –

IEC 60664-1:1992, Insulation coordination for equipment within low-voltage systems – Part 1:

Principles, requirements and tests
Amendment 1 (2000)
Amendment 2 (2002)

IEC 60664-3:2003, Insulation coordination for equipment within low-voltage systems – Part 3:

Use of coating, potting or moulding for protection against pollution

IEC 60664-4:2005, Insulation coordination for equipment within low-voltage systems – Part 4:

Consideration of high-frequency voltage stress

IEC 60695-2-10, Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods – Glow-

wire apparatus and common test procedure

IEC 60695-2-13, Fire hazard testing – Part 2-13: Glowing/hot-wire based test methods – Glow-

wire ignitability test method for materials

IEC 60695-11-10, Fire hazard testing – Part 11-10: Test flames – 50 W horizontal and vertical

flame test methods

IEC 60695-11-20, Fire hazard testing – Part 11-20: Test flames – 500 W flame test methods

IEC 60755, General requirements for residual current operated protective devices

IEC 60947-7-1:2002, Low-voltage switchgear and control gear – Part 7-1: Ancillary equipment

–Terminal blocks for copper conductors

IEC 60947-7-2:2002, Low-voltage switchgear and controlgear – Part 7-2: Ancillary equipment –

Protective conductor terminal blocks for copper conductors

IEC 60990:1999, Methods of measurement of touch current and protective conductor current

IEC 61230, Live working – Portable equipment for earthing or earthing and short-circuiting

IEC 61800-1, Adjustable speed electrical power drive systems – Part 1: General requirements

– Rating specifications for low voltage adjustable speed d.c. power drive systems

IEC 61800-2, Adjustable speed electrical power drive systems – Part 2: General requirements

– Rating specifications for low voltage adjustable frequency a.c. power drive systems

IEC 6
...

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