Low-voltage switchgear and controlgear assemblies - Part 0: Guidance to specifying assemblies

Within the IEC 61439 series of standards for low-voltage switchgear and controlgear
assemblies (ASSEMBLIES), there are system and application details that are specified by the
user to enable the manufacturer to produce an ASSEMBLY that meets the needs and
expectations of the user.
This Part of IEC 61439, which is a technical report identifies, from the user’s perspective,
those functions and characteristics that should be defined when specifying ASSEMBLIES. It
provides:
– an explanation of the ASSEMBLY characteristics and options within the IEC 61439 series;
– a guidance on how to select the appropriate option and to define characteristics so as to
meet specific application needs, using a functional approach; and
– an assistance in the specification of ASSEMBLIES.
References within this technical report to the interface characteristics of an ASSEMBLY and the
requirements with which they will comply assume that the ASSEMBLY is designed,
manufactured, and verified in accordance with the relevant IEC 61439 part.
V skupini standardov IEC 61439, Sestavi nizkonapetostnih stikalnih in krmilnih naprav (sestavi), so zbrane sistemske in druge podrobnosti za uporabo, ki jih specificira uporabnik, da omogoči proizvajalcu izdelati sestav, ki bo izpolnjeval potrebe in pričakovanja uporabnika.
Ta del IEC 61439 je tehnično poročilo, ki z uporabnikove perspektive identificira tiste funkcije in karakteristike, ki so potrebne za specifikacijo sestava. Zagotavlja:
–   razlago karakteristik sestava in možnosti v okviru skupine standardov IEC 61439,
–   navodila, kako z uporabo funkcionalnega pristopa primerno izbrati in določiti karakteristike sestava tako, da bodo ustrezale specifičnim potrebam uporabe, in
–   pomoč pri specificiranju sestavov.
Sklicevanje v tem tehničnem poročilu na karakteristike vmesnika sestava in na zahteve, s katerimi so skladne, ustvarja domnevo, da je sestav konstruiran, izdelan in preverjen v skladu z ustreznim delom IEC 61439.

Sestavi nizkonapetostnih stikalnih in krmilnih naprav - 0. del: Navodila za specificiranje sestavov

General Information

Status
Published
Publication Date
12-May-2016
Current Stage
6300 - Translation of adopted SIST international/foreign standards (Local Project)
Start Date
16-Jan-2017
Due Date
21-Jan-2017
Completion Date
19-May-2017
Ref Project

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SLOVENSKI STANDARD
SIST-TP IEC/TR 61439-0:2016
01-junij-2016
Sestavi nizkonapetostnih stikalnih in krmilnih naprav - 0. del: Navodila za
specificiranje sestavov

Low-voltage switchgear and controlgear assemblies - Part 0: Guidance to specifying

assemblies
Ta slovenski standard je istoveten z:
ICS:
29.130.20 Nizkonapetostne stikalne in Low voltage switchgear and
krmilne naprave controlgear
SIST-TP IEC/TR 61439-0:2016

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP IEC/TR 61439-0:2016
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SIST-TP IEC/TR 61439-0:2016
IEC/TR 61439-0
Edition 2.0 2013-04
TECHNICAL
REPORT
Low-voltage switchgear and controlgear assemblies –
Part 0: Guidance to specifying assemblies
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
ICS 29.130.20 ISBN 978-2-83220-787-1

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
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SIST-TP IEC/TR 61439-0:2016
– 2 – TR 61439-0 © IEC:2013(E)
CONTENTS

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

INTRODUCTION ..................................................................................................................... 7

1 Scope ............................................................................................................................... 9

2 Normative references ....................................................................................................... 9

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

4 Application of ASSEMBLIES within the IEC 61439 series ................................................... 10

4.1 General ................................................................................................................. 10

4.2 ASSEMBLY design and verification ........................................................................... 10

4.3 Service conditions and interface characteristics .................................................... 10

4.4 Design ................................................................................................................... 11

5 Electrical system ............................................................................................................ 11

5.1 General ................................................................................................................. 11

5.2 Earthing system .................................................................................................... 11

5.3 Nominal voltage .................................................................................................... 11

5.4 Transient overvoltages .......................................................................................... 12

5.5 Unusual voltage transients, temporary overvoltages .............................................. 13

5.6 Rated frequency f (Hz) ........................................................................................ 13

5.7 Additional on-site testing requirements: wiring, operational performance and

function ................................................................................................................. 14

6 Short-circuit withstand capability .................................................................................... 14

6.1 General ................................................................................................................. 14

6.2 Prospective short-circuit current at supply terminals I (kA) ................................. 14

6.3 Prospective short-circuit current in the neutral ....................................................... 15

6.4 Prospective short-circuit current in the protective circuit ........................................ 15

6.5 Short-circuit protective device (SCPD)................................................................... 15

6.6 Co-ordination of short-circuit protective devices including external short-

circuit protective device details .............................................................................. 16

6.7 Data associated with loads likely to contribute to the short-circuit current .............. 16

7 Protection of persons against electric shock ................................................................... 17

7.1 General ................................................................................................................. 17

7.2 Basic protection (protection against direct contact) ................................................ 17

7.2.1 General ..................................................................................................... 17

7.2.2 Basic insulation provided by insulating material ......................................... 17

7.2.3 Barriers or enclosures ............................................................................... 17

7.3 Fault protection (protection against indirect contact) .............................................. 18

7.3.1 General ..................................................................................................... 18

7.3.2 Requirements for the protective conductor to facilitate automatic

disconnection of the supply ....................................................................... 18

7.3.3 Electrical separation .................................................................................. 19

7.3.4 Protection by total insulation ...................................................................... 19

8 Installation environment .................................................................................................. 20

8.1 General ................................................................................................................. 20

8.2 Location type ......................................................................................................... 20

8.3 Protection against ingress of solid foreign bodies and ingress of water .................. 20

8.4 External mechanical impact ................................................................................... 21

8.5 Resistance to UV radiation .................................................................................... 21

8.6 Resistance to corrosion ......................................................................................... 21

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TR 61439-0 © IEC:2013(E) – 3 –

8.7 Ambient air temperature ........................................................................................ 21

8.8 Maximum relative humidity .................................................................................... 21

8.9 Pollution degree .................................................................................................... 22

8.10 Altitude .................................................................................................................. 22

8.11 EMC environment .................................................................................................. 22

8.12 Special service conditions ..................................................................................... 23

8.12.1 General ..................................................................................................... 23

8.12.2 Climatic conditions .................................................................................... 24

8.12.3 Protection against ingress of solid foreign bodies and ingress of

water ......................................................................................................... 24

8.12.4 Shock, vibration, seismic occurrence and external mechanical impact

(IK) ............................................................................................................ 24

8.12.5 Fire and explosion hazards ........................................................................ 24

8.12.6 Exceptional overvoltages ........................................................................... 25

8.12.7 EMC environment ...................................................................................... 25

9 Installation method ......................................................................................................... 25

9.1 General ................................................................................................................. 25

9.2 Assembly type ....................................................................................................... 25

9.3 Portability .............................................................................................................. 26

9.4 Maximum overall dimensions and weight ............................................................... 26

9.5 External conductor type(s) ..................................................................................... 26

9.6 Direction(s) of external conductors ........................................................................ 26

9.7 External conductor material ................................................................................... 26

9.8 External phase conductor, cross-sections, and terminations .................................. 27

9.9 External PE, N, PEN conductors cross-sections, and terminations ........................ 27

9.10 Special terminal identification requirements ........................................................... 27

10 Storage and handling ..................................................................................................... 28

10.1 General ................................................................................................................. 28

10.2 Maximum dimensions and weight of transport units ............................................... 28

10.3 Methods of transport (e.g. forklift, crane) ............................................................... 28

10.4 Environmental conditions different from the service conditions .............................. 28

10.5 Packing details ...................................................................................................... 28

11 Operating arrangements ................................................................................................. 28

11.1 General ................................................................................................................. 28

11.2 Access to manually operated devices .................................................................... 29

11.3 Isolation of load installation equipment items ......................................................... 29

12 Maintenance and upgrade capabilities ............................................................................ 30

12.1 General ................................................................................................................. 30

12.2 Requirements related to accessibility for inspection and similar operations ........... 30

12.3 Requirements related to accessibility for maintenance in service by

authorized persons ................................................................................................ 30

12.4 Requirements related to extension under voltage .................................................. 31

12.5 Protection against direct contact with hazardous live internal parts during

maintenance or upgrade ........................................................................................ 31

12.6 Method of functional units connection .................................................................... 31

12.7 Operating and maintenance gangways within an ASSEMBLY ................................... 32

12.8 Internal separation ................................................................................................ 32

13 Current carrying capability .............................................................................................. 32

13.1 General ................................................................................................................. 32

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13.2 Rated current I (A) (maximum current allowable) ............................................... 32

13.3 Rated current of circuits I (A) ............................................................................. 33

13.4 Rated diversity factor (RDF) .................................................................................. 33

13.5 Ratio of cross-section of the neutral conductor to phase conductors ...................... 33

13.5.1 General ..................................................................................................... 33

13.5.2 Phase conductors up to and including 16 mm .......................................... 33

13.5.3 Phase conductors above 16 mm .............................................................. 33

14 ASSEMBLY design and routine verification processes ....................................................... 34

14.1 Design verification ................................................................................................. 34

14.1.1 Object........................................................................................................ 34

14.1.2 Methods .................................................................................................... 34

14.1.3 Records ..................................................................................................... 34

14.2 Routine verification ................................................................................................ 34

14.2.1 General ..................................................................................................... 34

14.2.2 Records ..................................................................................................... 35

Annex A (informative) Cross-section of copper conductors suitable for connection to

terminals for external conductors .......................................................................................... 36

Annex B (informative) Forms of internal separation (see 12.8) ............................................. 37

Annex C (informative) Specification guidance for IEC 61439-2 ............................................. 41

Annex D (informative) Specification guidance for IEC 61439-3 ............................................. 47

Annex E (informative) Specification guidance for IEC 61439-4 ............................................. 51

Annex F (informative) Specification guidance for future IEC 61439-5 ................................... 55

Annex G (informative) Specification guidance for IEC 61439-6 ............................................ 56

Annex H (informative) Specification guidance for IEC 61439-7 ............................................. 60

Annex I (informative) List of notes concerning certain countries ........................................... 61

Bibliography .......................................................................................................................... 62

Figure 1 – Required rated impulse withstand voltage ............................................................ 13

Figure B.1 – Symbols used in Figures B.2 and B.3 ................................................................ 38

Figure B.2 – Forms 1 and 2 .................................................................................................. 39

Figure B.3 – Forms 3 and 4 .................................................................................................. 40

Table A.1 – Cross-section of copper conductors suitable for connection to terminals

for external conductors ......................................................................................................... 36

Table B.1 – Forms of internal separation............................................................................... 37

Table C.1 – Items subject to agreement between the ASSEMBLY manufacturer and the

user ...................................................................................................................................... 41

Table C.2 – Examples of optional items subject to agreement between the ASSEMBLY

manufacturer and the user .................................................................................................... 45

Table D.1 – Items subject to agreement between the ASSEMBLY manufacturer and the

user ...................................................................................................................................... 47

Table E.1 – Items subject to agreement between the ASSEMBLY manufacturer and the

user ...................................................................................................................................... 51

Table G.1 – Items subject to agreement between the ASSEMBLY manufacturer and the

user ...................................................................................................................................... 56

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SIST-TP IEC/TR 61439-0:2016
TR 61439-0 © IEC:2013(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES –
Part 0: Guidance to specifying assemblies
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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

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.

The main task of IEC technical committees is to prepare International Standards. However, a

technical committee may propose the publication of a technical report when it has collected

data of a different kind from that which is normally published as an International Standard, for

example "state of the art".

IEC 61439-0, which is a technical report, has been prepared by subcommittee 17D: Low-

voltage switchgear and controlgear assemblies, of IEC technical committee 17: Switchgear

and controlgear.

This second edition cancels and replaces the first edition published in 2010. It constitutes a

technical revision.

This second edition includes the following significant technical changes with respect to the

previous edition:
– alignment with IEC 61439-1:2011;
– alignment of Annex B with Annex AA of IEC 61439-2:2011;
– alignment of Table C.1 with Table BB.1 of IEC 61439-2:2011;
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SIST-TP IEC/TR 61439-0:2016
– 6 – TR 61439-0 © IEC:2013(E)
– addition of a new Annex D regarding IEC 61439-3;
– addition of a new Annex E regarding IEC 61439-4;
– addition of a new Annex G regarding IEC 61439-6;
– general editorial review.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
17D/458/DTR 17D/467A/RVC

Full information on the voting for the approval of this technical report 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.

The reader’s attention is drawn to the fact that Annex I lists all of the “in-some-country”

clauses on differing practices of a less permanent nature relating to the subject of this

Technical Report.

A list of all parts of the IEC 61439 series, under the general title Low-voltage switchgear and

controlgear assemblies, can be found on the IEC web site.

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

the stability 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.
A bilingual version of this publication may be issued at a later date.
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SIST-TP IEC/TR 61439-0:2016
TR 61439-0 © IEC:2013(E) – 7 –
INTRODUCTION

For the purposes of this technical report, the user is the party who specifies or selects the

ASSEMBLY characteristics. The user may be the same party as the one who will use and

operate the ASSEMBLY, or someone acting on their behalf. The aim of this technical report is to

provide the user with guidance on the specification that should be provided in order to

achieve the desired design of an assembly. Throughout this technical report, the term

ASSEMBLY is used for a low-voltage switchgear and controlgear assembly. The term

“manufacturer” refers to the ASSEMBLY manufacturer unless specifically noted otherwise.

The purpose of the IEC 61439 series of standards is to harmonize as far as practicable, all

the general rules and requirements that apply to ASSEMBLIES. The series further seeks, in

order to obtain uniformity of requirements for ASSEMBLIES, consistency in the verification of

ASSEMBLIES and to avoid the need for verification to other standards.

All those requirements for the various ASSEMBLIES that can be considered as general, together

with specific subjects of wide interest and application, e.g. temperature rise, dielectric

properties, have therefore been gathered in IEC 61439-1 as general rules. For each type of

ASSEMBLY only two main standards are necessary to determine all requirements and the

corresponding methods of verification:
1) the standard giving the general rules and designated “Part 1”, and

2) the specific ASSEMBLY standard, hereinafter referred to as the relevant ASSEMBLY

standard.

The IEC 61439 series of standards encompasses ASSEMBLIES for a wide variety of uses, some

of which have specific needs as dictated by their particular application. In order to define

clearly these specific needs, relevant ASSEMBLY standards focussed on a particular type of

application have been (or are being) developed. These are identified as IEC 61439-2 to

IEC 61439-7, inclusive (see list below). Each relevant ASSEMBLY standard with reference to

IEC 61439-1, the general rules, as appropriate, specifies the characteristics and performance

required by an ASSEMBLY within its defined scope of application. Each relevant ASSEMBLY

standard includes, as an annex, a template for “items subject to agreement between the

ASSEMBLY manufacturer and the user” to facilitate the specifying of an ASSEMBLY. These are

reproduced and explained in this technical report.

General characteristics of all types of assemblies are considered in this Technical Report.

Details of which are applicable to each type of assembly can be determined by reference to

the Specification Template in Annex ‘C’ onwards.

Within this technical report, reference to IEC 61439 means the series of ASSEMBLY standards,

including:

• IEC 61439-1:2011, Low-voltage switchgear and controlgear assemblies – Part 1: General

rules

• IEC 61439-2:2011, Low-voltage switchgear and controlgear assemblies – Part 2: Power

switchgear and controlgear assemblies
• IEC 61439-3:2012, Low-voltage switchgear and controlgear assemblies – Part 3:
Distribution boards intended to be operated by ordinary persons (DBO)
• IEC 61439-4:2012, Low-voltage switchgear and controlgear assemblies – Part 4:
Particular requirements for assemblies for construction sites (ACS)
• IEC 61439-5:2010, Low-voltage switchgear and controlgear assemblies – Part 5:
Assemblies for power distribution in public networks

• IEC 61439-6:2012, Low-voltage switchgear and controlgear assemblies – Part 6: Busbar

trunking systems (busways)
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– 8 – TR 61439-0 © IEC:2013(E)
• IEC 61439-7:2013, Low-voltage switchgear and controlgear assemblies – Part 7:

Assemblies for specific applications such as marinas, camping sites, market squares,

electrical vehicles charging stations
A reference to “general rules” means a reference to IEC 61439-1:2011.

A reference to “ASSEMBLY standard” means the relevant part of the IEC 61439 series (e.g.

Part 2, 3, etc.).

A reference to “product standard” means the relevant part or parts of the IEC standard for the

components used in the ASSEMBLY (e.g. IEC 60947-2 for circuit breakers).
___________
To be published.
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SIST-TP IEC/TR 61439-0:2016
TR 61439-0 © IEC:2013(E) – 9 –
LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR ASSEMBLIES –
Part 0: Guidance to specifying assemblies
1 Scope

Within the IEC 61439 series of standards for low-voltage switchgear and controlgear

assemblies (ASSEMBLIES), there are system and application details that are specified by the

user to enable the manufacturer to produce an ASSEMBLY that meets the needs and
expectations of the user.

This Part of IEC 61439, which is a technical report identifies, from the user’s perspective,

those functions and characteristics that should be defined when specifying ASSEMBLIES. It

provides:

– an explanation of the ASSEMBLY characteristics and options within the IEC 61439 series;

– a guidance on how to select the appropriate option and to define characteristics so as to

meet specific application needs, using a functional approach; and
– an assistance in the specification of ASSEMBLIES.

References within this technical report to the interface characteristics of an ASSEMBLY and the

requirements with which they will comply assume that the ASSEMBLY is designed,
manufactured, and verified in accordance with the relevant IEC 61439 part.
2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and

are indispensable for its application. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any
amendments) applies.

CISPR 11, Industrial, scientific and medical equipment – Radio-frequency disturbance

characteristics – Limits and methods of measurement

IEC 60364-4-41, Low-voltage electrical installations – Part 4-41: Protection for safety –

Protection against electric shock
IEC 60364-6, Low-voltage electrical installations – Part 6: Verification
IEC 60445, Basic and safety principles for man-machine interface, marking and
identificatio
...

SLOVENSKO SIST-TP IEC/TR 61439-0
TEHNIČNO
junij 2016
POROČILO
Sestavi nizkonapetostnih stikalnih in krmilnih naprav –
0. del: Navodila za specificiranje sestavov
Low-voltage switchgear and controlgear assemblies –
Part 0: Guidance to specifying assemblies
Referenčna oznaka
ICS 29.130.20 SIST-TP IEC/TR 61439-0:2016 (sl)
Nadaljevanje na straneh 2 do 63

© 2017-06. Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega standarda ni dovoljeno.

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SIST-TP IEC/TR 61439-0 : 2016
NACIONALNI UVOD

Tehnično poročilo SIST-TP IEC/TR 61439-0 (sl), Sestavi nizkonapetostnih stikalnih in krmilnih naprav –

0. del: Navodila za specificiranje sestavov, 2016, ima status slovenskega tehničnega poročila in je

istoveten mednarodnemu tehničnemu poročilu IEC/TR 61439-0 (en), Low-voltage switchgear and

controlgear assemblies – Part 0: Guidance to specifying assemblies, 2013.
NACIONALNI PREDGOVOR

Mednarodno tehnično poročilo IEC/TR 61439-0 je pripravil tehnični odbor Mednarodne elektrotehniške

komisije IEC/TC 17D Sestavi nizkonapetostnih stikalnih in krmilnih naprav. Slovensko tehnično poročilo

SIST-TP IEC/TR 61439-0:2016 je prevod mednarodnega tehničnega poročila IEC/TR 61439-0:2013. V

primeru spora glede besedila slovenskega prevoda v tem standardu je odločilen izvirni mednarodni

standard v angleškem jeziku. Slovensko izdajo standarda je potrdil tehnični odbor SIST/TC SKA Stikalni

in krmilni aparati.

Odločitev za privzem tega standarda je v juniju 2016 sprejel tehnični odbor SIST/TC SKA Stikalni in

krmilni aparati.
ZVEZA S STANDARDI

S privzemom tega evropskega standarda veljajo za omejeni namen referenčnih standardov vsi

standardi, navedeni v izvirniku, razen tistih, ki so že sprejeti v nacionalno standardizacijo:

SIST EN 55011:2016 Industrijska, znanstvena in medicinska (ISM) radiofrekvenčna oprema –

Karakteristike občutljivosti za radijske motnje – Mejne vrednosti in
merilne metode

SIST IEC 60364-4-41:2006 Nizkonapetostne električne inštalacije – 4-41. del: Zaščitni ukrepi –

Zaščita pred električnim udarom

SIST IEC 60364-6:2006 Nizkonapetostne električne inštalacije – 6. del: Preverjanje

SIST EN 60445:2011 Osnovna in varnostna načela za vmesnik človek-stroj, označevanje in

razpoznavanje – Razpoznavanje terminalov opreme, končnikov vodnikov
in vodnikov (IEC 60445:2010)

SIST EN 60529:1997 Stopnja zaščite, ki jo zagotavlja ohišje (koda IP) (IEC 60529:1989)

(vsebuje popravek AC:1993)

SIST EN 61439-1:2012 Sestavi nizkonapetostnih stikalnih in krmilnih naprav – 1. del: Splošna

pravila (IEC 61439-1:2011)

SIST EN 62262:2007 Stopnje zaščite pred mehanskimi udarci, ki jo ohišja nudijo električni

opremi (koda IK) (IEC 62262:2002) (istoveten z EN 50102:1995 +
A1:1998)
OSNOVA ZA IZDAJO STANDARDA
– privzem standarda IEC/TR 61439-0:2013
OPOMBI

– Povsod, kjer se v besedilu tehničnega poročila uporablja izraz “mednarodno tehnično poročilo”, v

SIST-TP IEC/TR 61439-0:2016 to pomeni “slovensko tehnično poročilo”.
– Nacionalni uvod in nacionalni predgovor nista sestavni del standarda.
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SIST-TP IEC/TR 61439-0 : 2016
VSEBINA Stran

Predgovor .................................................................................................................................................6

Uvod .........................................................................................................................................................8

1 Področje uporabe ...............................................................................................................................10

2 Zveze s standardi ...............................................................................................................................10

3 Izrazi in definicije ................................................................................................................................10

4 Obravnava SESTAVOV v skupini standardov 61439 ............................................................................10

4.1 Splošno ............................................................................................................................................10

4.2 Konstrukcija in preverjanje SESTAVA ................................................................................................11

4.3 Pogoji delovanja in karakteristike vmesnika ....................................................................................11

4.4 Zasnova ...........................................................................................................................................11

5 Električni sistem ..................................................................................................................................12

5.1 Splošno ............................................................................................................................................12

5.2 Ozemljitveni sistem ..........................................................................................................................12

5.3 Nazivna napetost .............................................................................................................................12

5.4 Prehodne prenapetosti ....................................................................................................................12

5.5 Nenavadne prehodne prenapetosti, začasne prenapetosti.............................................................14

5.6 Naznačena frekvenca f (Hz) ...........................................................................................................14

5.7 Dodatne zahteve za preskušanje na kraju samem: ožičenje, tehnične zahteve in funkcija ...........14

6 Kratkostična zdržna zmogljivost .........................................................................................................14

6.1 Splošno ............................................................................................................................................14

6.2 Pričakovani kratkostični tok na napajalnih sponkah I (kA) ...........................................................15

6.3 Pričakovani kratkostični tok v nevtralnem vodniku ..........................................................................15

6.4 Pričakovani kratkostični tok v zaščitnem vodniku ...........................................................................15

6.5 Kratkostična zaščitna naprava ........................................................................................................16

6.6 Koordinacija kratkostičnih zaščitnih naprav vključno s podrobnostmi zunanjih zaščitnih naprav ...16

6.7 Podatki v zvezi z bremeni, ki lahko prispevajo h kratkostičnemu toku ............................................17

7 Zaščita oseb pred električnim udarom ...............................................................................................17

7.1 Splošno ............................................................................................................................................17

7.2 Osnovna zaščita (zaščita pred neposrednim dotikom) ..................................................................17

7.2.1 Splošno .........................................................................................................................................17

7.2.2 Osnovna izolacija, zagotovljena z izolacijskim materialom ..........................................................17

7.2.3 Pregrade ali okrovi ........................................................................................................................17

7.3 Zaščita ob okvari (zaščita pri posrednem dotiku) ...........................................................................18

7.3.1 Splošno .........................................................................................................................................18

7.3.1 Zahteve za zaščitni vodnik, ki omogoča samodejni odklop napajanja .........................................18

7.3.2.1 Okvare v SESTAVU ......................................................................................................................18

7.3.2.2 Okvare v zunanjih tokokrogih, napajanih iz SESTAVA ................................................................18

7.3.3 Električna ločitev ...........................................................................................................................19

7.3.4 Zaščita s popolnim izoliranjem .....................................................................................................19

8 Okolje namestitve ...............................................................................................................................20

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8.1.Splošno .............................................................................................................................................20

8.2 Vrsta mesta namestitve ....................................................................................................................20

8.3 Zaščita pred vdorom trdnih tujkov in vode........................................................................................20

8.4 Zunanji mehanski vplivi ....................................................................................................................21

8.5 Odpornost proti UV-sevanju .............................................................................................................21

8.6 Odpornost proti koroziji.....................................................................................................................21

8.7 Temperatura zraka okolice ...............................................................................................................21

8.8 Največja relativna vlažnost ...............................................................................................................21

8.9 Stopnja onesnaženja ........................................................................................................................22

8.10 Nadmorska višina ...........................................................................................................................22

8.11 Okolje EMC ....................................................................................................................................22

8.12 Posebni obratovalni pogoji .............................................................................................................23

8.12.1 Splošno ........................................................................................................................................23

8.12.2 Klimatski pogoji ............................................................................................................................24

8.12.3 Zaščita pred vdorom trdnih tujkov in vode ..................................................................................24

8.12.4 Udar, vibracija, seizmični pojav in zunanji mehanski vpliv (IK) ..................................................24

8.12.5 Nevarnosti požara in eksplozij .....................................................................................................24

8.12.6 Izjemne prenapetosti ...................................................................................................................24

8.12.7 Okolje EMC .................................................................................................................................24

9 Metoda nameščanja ............................................................................................................................25

9.1 Splošno .............................................................................................................................................25

9.2 Izvedba sestava ................................................................................................................................25

9.3 Prenosnost .......................................................................................................................................25

9.4 Največje zunanje mere in masa .......................................................................................................25

9.5 Vrsta(-e) zunanjih vodnikov ..............................................................................................................26

9.6 Smer(-i) zunanjih vodnikov ...............................................................................................................26

9.7 Material zunanjih vodnikov ...............................................................................................................26

9.8 Zunanji fazni vodnik, prerezi in končniki ...........................................................................................26

9.9 Prerezi zunanjih vodnikov PE, N, PEN in končnikov ........................................................................27

9.10 Posebne zahteve za označevanje sponk .......................................................................................27

10 Skladiščenje in ravnanje ....................................................................................................................27

10.1 Splošno ...........................................................................................................................................27

10.2 Največje mere in masa transportnih enot .......................................................................................27

10.3 Načini transporta (npr. viličar, žerjav) ............................................................................................27

10.4 Okoljski pogoji, različni od obratovalnih pogojev ............................................................................28

10.5 Posebnosti embaliranja ..................................................................................................................28

11 Postavitev SESTAVA pri obratovanju ...................................................................................................28

11.1 Splošno ...........................................................................................................................................28

11.2 Dostop do ročno upravljanih naprav ..............................................................................................28

11.3 Ločevanje opreme pod napetostjo ................................................................................................29

12 Vzdrževanje in možnosti nadgradnje ................................................................................................29

12.1 Splošno ...........................................................................................................................................29

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12.2 Zahteve v zvezi z dostopnostjo pri pregledu in podobnih operacijah .............................................29

12.3 Zahteve v zvezi z dostopnostjo, ko pooblaščene osebe izvajajo vzdrževanje

med obratovanjem .........................................................................................................................30

12.4 Zahteve za širitev SESTAVOV, ki so pod napetostjo ........................................................................30

12.5 Zaščita pred neposrednim dotikom z nevarnimi notranjmi deli pod napetostjo

med vzdrževanjem ali nadgradnjo ..................................................................................................31

12.6 Način priključevanja funkcijskih enot ..............................................................................................31

12.7 Prehodi v SESTAVU za upravljanje in vzdrževanje ..........................................................................31

12.8 Notranja ločitev ...............................................................................................................................31

13 Dopustni tok .......................................................................................................................................32

13.1 Splošno ...........................................................................................................................................32

13.2 Naznačeni tok I (A) (največji dovoljeni tok) ................................................................................32

13.3 Naznačeni toki tokokrogov I (A) .................................................................................................32

13.4 Naznačeni faktor obremenitve (RDF) ............................................................................................32

13.5 Razmerje prerezov nevtralnega vodnika in faznih vodnikov ..........................................................33

13.5.1 Splošno ........................................................................................................................................33

13.5.2 Fazni vodniki do vključno 16 mm ...............................................................................................33

13.5.3 Fazni vodniki nad 16 mm ...........................................................................................................33

14 Konstrukcija SESTAVA in procesi kosovnega preverjanja ..................................................................33

14.1 Preverjanje zasnove .......................................................................................................................33

14.1.1 Namen .........................................................................................................................................33

14.1.2 Metode .........................................................................................................................................33

14.1.3 Zapisi ...........................................................................................................................................34

14.2 Kosovno preverjanje .......................................................................................................................34

14.2.1 Splošno ........................................................................................................................................34

14.2.2 Zapisi ...........................................................................................................................................34

Dodatek A (informativni) Prerez bakrenih vodnikov, primernih za priključek na sponke

za zunanje vodnike .........................................................................................................................35

Dodatek B (informativni): Oblike notranjih ločitev ..................................................................................36

Dodatek C (informativni): Navodilo za specificiranje po IEC 61439-2 ...................................................40

Dodatek D (informativni): Navodilo za specificiranje po IEC 61439-3 ...................................................47

Dodatek E (informativni): Navodilo za specificiranje po IEC 61439-4 ....................................................51

Dodatek F (informativni): Navodilo za specificiranje po IEC 61439-5 ....................................................55

Dodatek G (informativni): Navodilo za specificiranje po IEC 61439-6 ...................................................56

Dodatek H (informativni): Navodilo za specificiranje po IEC 61439-7 ..................................................61

Dodatek I (informativni): Seznam opomb za posamezne države ...........................................................62

Literatura.................................................................................................................................................63

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MEDNARODNA ELEKTROTEHNIŠKA KOMISIJA
SESTAVI NIZKONAPETOSTNIH STIKALNIH IN KRMILNIH NAPRAV –
0. del: Navodila za specificiranje sestavov
PREDGOVOR

1) IEC (Mednarodna elektrotehniška komisija) je svetovna organizacija za standardizacijo, ki združuje vse nacionalne

elektrotehnične komiteje (nacionalni komiteji IEC). Cilj IEC je pospeševati mednarodno sodelovanje v vseh vprašanjih

standardizacije s področja elektrotehnike in elektronike. V ta namen poleg drugih aktivnosti izdaja mednarodne standarde,

tehnične specifikacije, tehnična poročila, javnosti dostopne specifikacije (PAS) in vodila (v nadaljevanju: publikacije IEC). Za

njihovo pripravo so odgovorni tehnični odbori. Vsak nacionalni komite IEC, ki ga zanima obravnavana tema, lahko sodeluje v

tem pripravljalnem delu. Prav tako lahko v pripravi sodelujejo mednarodne organizacije ter vladne in nevladne ustanove, ki

so povezane z IEC. IEC deluje v tesni povezavi z mednarodno organizacijo za standardizacijo ISO skladno s pogoji,

določenimi v soglasju med obema organizacijama.

2) Uradne odločitve ali sporazumi IEC o tehničnih vprašanjih, pripravljeni v tehničnih odborih, v katerih so prisotni vsi nacionalni

komiteji, ki jih tema zanima, izražajo, kolikor je mogoče, mednarodno soglasje o obravnavani temi.

3) Publikacije IEC imajo obliko priporočil za njihovo uporabo na mednarodni ravni in jih kot takšne sprejmejo nacionalni komiteji

IEC. Čeprav IEC skuša na vse primerne načine zagotavljati točnost tehničnih vsebin v publikacijah IEC, IEC ne more biti

odgovoren za način, kako se določila uporabljajo, ter za morebitne napačne razlage končnih uporabnikov.

4) Da bi pospeševali mednarodno poenotenje, so se nacionalni komiteji IEC zavezali, da bodo v svojih nacionalnih in regionalnih

standardih čim pregledneje uporabljali mednarodne standarde. Vsako odstopanje med standardom IEC in ustreznim

nacionalnim ali regionalnim standardom je treba v slednjem jasno označiti.

5) IEC sam ne izvaja potrjevanja skladnosti. Storitve ugotavljanja skladnosti in na nekaterih območjih tudi dostop do znakov

skladnosti IEC izvajajo neodvisni certifikacijski organi. IEC ne prevzema nikakršne odgovornosti za storitve, ki jih izvajajo

neodvisni certifikacijski organi.
6) Vsi uporabniki naj bi si zagotovili zadnjo izdajo teh publikacij.

7) IEC ali njegovi direktorji, zaposleni, uslužbenci ali agenti, vključno s samostojnimi strokovnjaki ter člani tehničnih odborov in

nacionalnih komitejev IEC, ne prevzemajo nobene odgovornosti za kakršno koli osebno poškodbo, škodo na premoženju ali

katero koli drugo škodo kakršne koli vrste, bodisi posredne ali neposredne, ali za stroške (vključno z zakonitim lastništvom)

in izdatke, povezane s publikacijo, njeno uporabo ali zanašanjem na to publikacijo IEC ali katero koli drugo publikacijo IEC.

8) Pozornost je treba posvetiti normativnim virom, na katere se sklicuje ta publikacija. Uporaba navedenih publikacij je nujna za

pravilno uporabo te publikacije.

9) Opozoriti je treba na možnost, da bi lahko bil kateri od elementov tega mednarodnega standarda predmet patentnih pravic.

IEC ni odgovoren za identificiranje nobene od teh patentnih pravic.

Glavna naloga tehničnih odborov IEC je pripravljati mednarodne standarde. Vendar lahko tehnični odbor

predlaga publikacijo kot tehnično poročilo, dokler zbira različne vrste informacij, po navadi potrebne za

izdajo mednarodnega standarda, na primer "stanje tehnike".

Tehnično poročilo IEC 61439-0 je pripravil pododbor 17D Sestavi nizkonapetostnih stikalnih in krmilnih

naprav pri tehničnem odboru IEC 17 Stikalne in krmilne naprave.

Ta druga izdaja razveljavlja in zamenjuje prvo izdajo, objavljeno v letu 2010. Predstavlja tehnično

revizijo.

Ta druga izdaja vključuje naslednje pomembne tehnične spremembe glede na prejšnjo izdajo:

̶ uskladitev z IEC 61439-1:2011;
̶ uskladitev dodatka B z dodatkom AA iz IEC 61439-2:2011;
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SIST-TP IEC/TR 61439-0 : 2016
̶ uskladitev preglednice C.1 s preglednico BB.1 iz IEC 61439-2:2011;
̶ dodan nov dodatek D glede na IEC 61439-3;
̶ dodan nov dodatek E glede na IEC 61439-4;
̶ dodan nov dodatek G glede na IEC 61439-6;
̶ splošen redakcijski pregled.
Besedilo tega tehničnega poročila temelji na naslednjih dokumentih:
Glasovanje o osnutku Poročilo o glasovanju
17D/458/DTR 17D/467A/RVC

Celotna informacija o glasovanju za odobritev tega tehničnega odbora je na voljo v poročilu o

glasovanju, navedenem v gornji preglednici.
Ta publikacija je pripravljena v skladu z 2. delom Direktiv ISO/IEC.

Bralca je treba opozoriti na dejstvo, da so v dodatku I navedene vse določbe "v nekaterih državah", ki v

praksi ponekod odstopajo od predmeta tega tehničnega poročila.

Seznam vseh delov serije standardov IEC 61439 s splošnim naslovom Sestavi nizkonapetostnih

stikalnih in krmilnih naprav je na voljo na spletni strani IEC.

Tehnični odbor je sklenil, da bo vsebina te publikacije ostala nespremenjena do datuma stabilnosti,

navedenega na spletni strani IEC pod http://webstore.iec.ch, v podatkih, povezanih s posebno izdajo.

Po tem datumu bo publikacija:
– ponovno potrjena,
– razveljavljena,
– nadomeščena z revidirano izdajo ali
– dopolnjena.
Dvojezična verzija te publikacije lahko izide pozneje.
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Uvod

V tem tehničnem poročilu je uporabnik tista stranka, ki podrobno določa ali izbira karakteristike SESTAVA.

Uporabnik je lahko ista stranka kot tista, ki bo uporabljala in vodila obratovanje SESTAVA, ali nekdo, ki

deluje v njegovem imenu. Cilj tega tehničnega poročila je zagotoviti uporabniku navodilo o

specifikacijah, ki jih je treba zagotoviti za dosego želene konstrukcije SESTAVA. V celotnem tehničnem

poročilu se izraz SESTAV uporablja za sestav nizkonapetostnih stikalnih in krmilnih naprav. Izraz

"proizvajalec" se nanaša na proizvajalca SESTAVA, razen če ni navedeno drugače.

Namen skupine standardov IEC 61439 je harmonizirati, kolikor je mogoče, vsa splošna pravila in

zahteve, ki veljajo za SESTAVE. Nadalje skuša doseči poenotenje zahtev za SESTAV in usklajenost pri

preverjanju SESTAVOV ter odpraviti potrebo po preverjanju po drugih standardih.

Vse zahteve za različne SESTAVE, ki se lahko štejejo za splošne, so zato skupaj s posebnimi vsebinami

širšega interesa in uporabe, npr. dvig temperature, dielektrične lastnosti, zbrane v IEC 61439-1 kot

splošna pravila. Za vsak tip SESTAVA sta potrebna samo dva glavna standarda za določitev vseh zahtev

in pripadajočih metod preverjanja:
1) standard s splošnimi pravili, označen kot "1. del", in

2) poseben standard za SESTAV, v nadaljevanju imenovan kot ustrezni standard SESTAVA.

Skupina standardov IEC 61439 vključuje SESTAVE za številne različne uporabe, od katerih imajo nekateri

posebne potrebe, ki jih narekuje njihova posebna uporaba. Zaradi jasne določitve teh specifičnih potreb

so bili razviti (ali so v razvoju) ustrezni standardi za SESTAVE, usmerjeni v posebni tip uporabe. Ti so

označeni kot IEC 61439-2 do vključno IEC 61439-7 (glej seznam spodaj). Vsak ustrezni standard za

SESTAV, ki se sklicuje na IEC 61439-1 ali splošna pravila, kot je primerno, določa karakteristike in

tehnične zahteve, ki jih zahteva SESTAV za svoje področje uporabe. Vsak ustrezni standard za SESTAV

vsebuje kot dodatek še predlogo za "postavke, ki so predmet dogovora med proizvajalcem SESTAVA in

uporabnikom", kar olajšuje specificiranje SESTAVA. Ti predmeti so prikazani in razloženi v tem tehničnem

poročilu.

V tem tehničnem poročilu so obravnavane splošne karakteristike vseh vrst sestavov. Podrobnosti, ki se

uporabijo za vsako vrsto sestava, se lahko določijo s sklicevanjem na predlogo za specifikacijo v

dodatku C.

Sklicevanje na IEC 61439 v tem tehničnem poročilu pomeni skupino standardov za SESTAVE, in sicer:

– IEC 61439-1:2011, Sestavi nizkonapetostnih stikalnih in krmilnih naprav – 1. del: Splošna pravila

– IEC 61439-2:2011, Sestavi nizkonapetostnih stikalnih in krmilnih naprav – 2. del: Sestavi

močnostnih stikalnih in krmilnih naprav

– IEC 61439-3:2012, Sestavi nizkonapetostnih stikalnih in krmilnih naprav – 3. del: Električni

razdelilniki, s katerimi lahko ravnajo nestrokovnjaki (DBO)

– IEC 61439-4:2012, Sestavi nizkonapetostnih stikalnih in krmilnih naprav – 4. del: Posebne zahteve

za sestave na gradbiščih (ACS)

– IEC 61439-5, 2010, Nizkonapetostne stikalne in krmilne naprave – 5. del: Sestavi za distribucijo

električne energije v javnih omrežjih

– IEC 61439-6:2012, Sestavi nizkonapetostnih in krmilnih naprav – 6. del: Zbiralčni povezovalni

sistemi (zbiralčna vodila)

– IEC 61439-7:2013, Sestavi nizkonapetostnih stikalnih in krmilnih naprav – 7. del: Sestavi za

posebne aplikacije, npr. za marine, prostore za kampiranje, tržnice, napajalne postaje za električna

vozila
Sklic na "splošna pravila" pomeni sklic na IEC 61439-1:2011.
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Sklic na "standard za SESTAV" pomeni ustrezni del skupine standardov IEC 61439 (npr. 2., 3. del itd.).

Sklic na "standard za proizvod" pomeni ustrezni del ali dele standarda IEC za sestavne dele,

uporabljene v SESTAVU (npr. IEC 60947-2 za odklopnike).
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Sestavi nizkonapetostnih stikalni
...

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