IEC TR 61200-52:2013

Electrical installation guide - Part 52: Selection and erection of electrical equipment - Wiring systems

IEC/TR 61200-52:2013 is Technical Report which serves as a supplement to IEC 60364-5-52:2009 and explains the rules so as to facilitate the design, selection, erection and maintenance of wiring systems. It follows the numbering of that standard. This technical report is written for everyone concerned with the design, the selection and supply of equipment, as well as the persons who install, maintain and use electrical installations. This second edition cancels and replaces the first edition, published in 1993, and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- guidance associated with conduit systems, cable ducting systems, cable trunking systems, cable tray systems and cable ladder systems has been added giving, for example, recommended maximum straight lengths of conduit to ease the installation circuit wiring;
- guidance associated with selection and erection of wiring systems in relation to external influences has been extended to cover impact, and other mechanical stresses;
- guidance for grouping of cables has been added; and
- guidance on maximum temperatures of terminals in normal service conditions has been extended.

Guide pour les installations électriques - Partie 52: Choix et mise en oeuvre des matériels électriques - Canalisations

La CEI/TR 61200-52:2013 est un Rapport Technique qui constitue un supplément à la CEI 60364-5-52:2009 et explique les règles de manière à faciliter la conception, le choix, la mise en oeuvre et la maintenance des canalisations. Sa numérotation des articles suit la numérotation de la CEI 60364-5-52. Il est rédigé à l'intention de toute personne concernée par la conception, le choix et la fourniture des matériels, ainsi qu'à l'intention des personnes qui installent, assurent la maintenance et utilisent des installations électriques. Cette deuxième édition annule et remplace la première édition, parue en 1993, et constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- des recommandations concernant les systèmes de conduits, systèmes de conduits-profilés, systèmes de goulottes, systèmes de chemins de câbles et systèmes d'échelles à câbles ont été ajoutées pour donner, par exemple, les longueurs maximales recommandées pour les conduits afin de faciliter l'installation des circuits;
- les recommandations pour le choix et la mise en oeuvre des canalisations en tenant compte des influences externes ont été étendues aux impacts et autres contraintes mécaniques;
- des recommandations pour les groupements de câbles ont été ajoutées; et
- des recommandations sur les températures maximales des bornes en conditions de fonctionnement normal ont été étendues.

Vodilo za električne inštalacije – 52. del: Izbira in namestitev električne opreme – Inštalacijski sistem (IEC TR 61200-52:2013)

To tehnično poročilo je dodatek standardu IEC 60364-5-52:2009 in pojasnjuje pravila za lažje projektiranje, izbiro, postavitev in vzdrževanje inštalacijskih sistemov.
Namenjeno je vsem, ki so vključeni v projektiranje, izbiro in dobavo opreme, kot tudi osebam, ki nameščajo, vzdržujejo in uporabljajo električne inštalacije.

General Information

• Status: Published
• Publication Date: 09-Jul-2013
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.060.01 - Electrical wires and cables in general
• ICS: 33.160.50 - Accessories
• ICS: 91.140.50 - Electricity supply systems
• Technical Committee: TC 64 - Electrical installations and protection against electric shock
• Drafting Committee: MT 2 - TC 64/MT 2
• Current Stage: PPUB - Publication issued
• Completion Date: 10-Jul-2013
• Ref Project: SIST-TP IEC/TR 61200-52:2024 - Electrical installation guide - Part 52: Selection and erection of electrical equipment - Wiring systems (IEC TR 61200-52:2013)

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2024
Vodilo za električne inštalacije – 52. del: Izbira in namestitev električne opreme –
Inštalacijski sistem (IEC TR 61200-52:2013)
Electrical installation guide - Part 52: Selection and erection of electrical equipment -
Wiring systems (IEC TR 61200-52:2013)
Guide pour les installations électriques - Partie 52: Choix et mise en oeuvre des
matériels électriques - Canalisations (IEC TR 61200-52:2013)
Ta slovenski standard je istoveten z: IEC TR 61200-52:2013
ICS:
29.060.01 Električne žice in kabli na Electrical wires and cables in
splošno general
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

IEC/TR 61200-52 ®
Edition 2.0 2013-07
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
Electrical installation guide –

Part 52: Selection and erection of electrical equipment – Wiring systems

Guide pour les installations électriques –

Partie 52: Choix et mise en œuvre des matériels électriques – Canalisations

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX M
ICS 29.060.01; 91.140.50 ISBN 978-2-8322-0882-3

– 2 – TR 61200-52 © IEC:2013
CONTENTS
FOREWORD . 3
520 Introduction . 5
520.1 Scope . 5
520.2 Normative references . 5
521 Types of wiring system . 6
521.6 Conduit systems, cable ducting systems, cable trunking systems, cable
tray systems and cable ladder systems . 6
522 Selection and erection of wiring systems in relation to external influences . 7
522.4 Presence of solid foreign bodies . 7
522.6 Impact . 7
522.8 Other mechanical stresses . 7
522.8.101 Reduction of the risk of short-circuit or earth fault . 7
522.11 Solar radiation and ultraviolet radiation . 7
523 Current-carrying capacities . 8
526 Electrical connections . 8
526.4 Maximum temperatures of terminals in normal service conditions . 8
526.4.101 General . 8
526.4.201 Limitation of temperature at a terminal . 8
526.4.301 Limitation of the effects of temperature at a terminal in
normal service . 9
526.8 Connection of multiwire, fine wire and very fine wire conductors . 10
528 Proximity of wiring systems to other services . 10
528.2 Proximity of communication cables. 10
Annex B, Current-carrying capacity . 11
Annex I (informative) List of notes concerning certain countries . 12
Bibliography . 13

Table 52A – Cable surrounded by thermal insulation . 11

TR 61200-52 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATION GUIDE –

Part 52: Selection and erection of electrical equipment –
Wiring systems
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 61200-52, which is a technical report, has been prepared by IEC technical
committee 64: Electrical installations and protection against electric shock.
This second edition cancels and replaces the first edition, published in 1993, and constitutes
a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– 4 – TR 61200-52 © IEC:2013
a) the scope has been modified; whilst the Guide does not form part of the IEC 60364 series,
it serves as a supplement to IEC 60364-5-52:2009 and explains the rules so as to facilitate
the design, selection, erection and maintenance of wiring systems;
b) guidance associated with conduit systems, cable ducting systems, cable trunking systems,
cable tray systems and cable ladder systems has been added giving, for example,
recommended maximum straight lengths of conduit to ease the installation circuit wiring;
c) guidance associated with selection and erection of wiring systems in relation to external
influences has been extended to cover impact, and other mechanical stresses.
d) guidance for grouping of cables has been added.
e) guidance on maximum temperatures of terminals in normal service conditions has been
extended;
f) guidance on the connection of multi wire, fine wire and very fine wire conductors has been
added;
g) guidance on proximity of communication cables has been added;
h) guidance on cables in contact with thermal insulation has been added.
This technical report serves as a supplement to IEC 60364-5-52:2009 and follows the
numbering of that standard.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
64/1875/DTR 64/1887/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 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.
TR 61200-52 © IEC:2013 – 5 –
ELECTRICAL INSTALLATION GUIDE –

Part 52: Selection and erection of electrical equipment –
Wiring systems
520 Introduction
520.1 Scope
This Technical Report serves as a supplement to IEC 60364-5-52:2009 and explains the rules
so as to facilitate the design, selection, erection and maintenance of wiring systems.
It is written for everyone concerned with the design, the selection and supply of equipment, as
well as the persons who install, maintain and use electrical installations.
520.2 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.
IEC 60227-4, Polyvinyl chloride insulated cables of rated voltages up to and including
450/750 V – Part 4: Sheathed cables for fixed wiring
IEC 60245-4, Rubber insulated cables – Rated voltages up to and including 450/750 V –
Part 4: Cords and flexible cables
IEC 60364-4-43:2008, Low-voltage electrical installations – Part 4-43 Protection for safety –
Protection against overcurrent
IEC 60364-5-51:2005, Electrical installations of buildings – Part 5-51: Selection and erection
of electrical equipment – Common rules
IEC 60364-5-52:2009, Low-voltage electrical installations – Part 5-52: Selection and erection
of electrical equipment – Wiring systems
IEC 60502-1, Power cables with extruded insulation and their accessories for rated voltages
from 1 kV (U = 1,2 kV) up to 30 kV (U = 36 kV) – Part 1: Cables for rated voltages of 1 kV
m m
(U = 1,2 kV) and 3 kV (U = 3,6 kV)
m m
IEC/TR 60890, A method of temperature-rise assessment by extrapolation for partially type-
tested assemblies (PTTA) of low-voltage switchgear and controlgear
IEC/TR 60943, Guidance concerning the permissible temperature rise for parts of electrical
equipment, in particular for terminals
IEC 61084 (all parts), Cable trunking and ducting systems for electrical installations
IEC 61084-2-2, Cable trunking and ducting systems for electrical installations – Part 2-2:
Particular requirements – Cable trunking systems and cable ducting systems intended for
underfloor and flushfloor installations

– 6 – TR 61200-52 © IEC:2013
IEC 61386 (all parts), Conduit systems for cable management
IEC 61386-21, Conduit systems for cable management – Part 21: Particular requirements –
Rigid conduit systems
IEC 61386-22, Conduit systems for cable management – Part 22: Particular requirements –
Pliable conduit systems
IEC 61386-23, Conduit systems for cable management – Part 23: Particular requirements –
Flexible conduit systems
IEC 61439 (all parts), Low-voltage switchgear and controlgear assemblies
521 Types of wiring system
521.6 Conduit systems, cable ducting systems, cable trunking systems, cable tray
systems and cable ladder systems
The following includes recommendations to ease the installation, or replacement, of circuits
installed in conduit.
a) Straight conduit lengths between access points should not exceed 25 m. Conduit lengths
which include changes in direction should not exceed 15 m between access points. There
should be no more than three changes in direction between access points.
b) The number of bends in any run should be minimized.
c) Any bending radius should be as large as possible and in accordance with the
manufacture
...

IEC/TR 61200-52 ®
Edition 2.0 2013-07
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
Electrical installation guide –
Part 52: Selection and erection of electrical equipment – Wiring systems

Guide pour les installations électriques –
Partie 52: Choix et mise en œuvre des matériels électriques – Canalisations

IEC/TR 61200-52:2013
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IEC/TR 61200-52 ®
Edition 2.0 2013-07
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
Electrical installation guide –

Part 52: Selection and erection of electrical equipment – Wiring systems

Guide pour les installations électriques –

Partie 52: Choix et mise en œuvre des matériels électriques – Canalisations

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX M
ICS 29.060.01; 91.140.50 ISBN 978-2-8322-0882-3

– 2 – TR 61200-52 © IEC:2013
CONTENTS
FOREWORD . 3
520 Introduction . 5
520.1 Scope . 5
520.2 Normative references . 5
521 Types of wiring system . 6
521.6 Conduit systems, cable ducting systems, cable trunking systems, cable
tray systems and cable ladder systems . 6
522 Selection and erection of wiring systems in relation to external influences . 7
522.4 Presence of solid foreign bodies . 7
522.6 Impact . 7
522.8 Other mechanical stresses . 7
522.8.101 Reduction of the risk of short-circuit or earth fault . 7
522.11 Solar radiation and ultraviolet radiation . 7
523 Current-carrying capacities . 8
526 Electrical connections . 8
526.4 Maximum temperatures of terminals in normal service conditions . 8
526.4.101 General . 8
526.4.201 Limitation of temperature at a terminal . 8
526.4.301 Limitation of the effects of temperature at a terminal in
normal service . 9
526.8 Connection of multiwire, fine wire and very fine wire conductors . 10
528 Proximity of wiring systems to other services . 10
528.2 Proximity of communication cables. 10
Annex B, Current-carrying capacity . 11
Annex I (informative) List of notes concerning certain countries . 12
Bibliography . 13

Table 52A – Cable surrounded by thermal insulation . 11

TR 61200-52 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSTALLATION GUIDE –

Part 52: Selection and erection of electrical equipment –
Wiring systems
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 61200-52, which is a technical report, has been prepared by IEC technical
committee 64: Electrical installations and protection against electric shock.
This second edition cancels and replaces the first edition, published in 1993, and constitutes
a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– 4 – TR 61200-52 © IEC:2013
a) the scope has been modified; whilst the Guide does not form part of the IEC 60364 series,
it serves as a supplement to IEC 60364-5-52:2009 and explains the rules so as to facilitate
the design, selection, erection and maintenance of wiring systems;
b) guidance associated with conduit systems, cable ducting systems, cable trunking systems,
cable tray systems and cable ladder systems has been added giving, for example,
recommended maximum straight lengths of conduit to ease the installation circuit wiring;
c) guidance associated with selection and erection of wiring systems in relation to external
influences has been extended to cover impact, and other mechanical stresses.
d) guidance for grouping of cables has been added.
e) guidance on maximum temperatures of terminals in normal service conditions has been
extended;
f) guidance on the connection of multi wire, fine wire and very fine wire conductors has been
added;
g) guidance on proximity of communication cables has been added;
h) guidance on cables in contact with thermal insulation has been added.
This technical report serves as a supplement to IEC 60364-5-52:2009 and follows the
numbering of that standard.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
64/1875/DTR 64/1887/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 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.
...