Powertrack systems - Part 21: Particular requirements for powertrack systems intended for wall and ceiling mounting

IEC 61534-21:2014 specifies the particular requirements and tests for PT systems intended for mounting on walls and/or ceiling. They may be installed flush or semi-flush, surface mounted, suspended or spaced away from the surface using fixing devices. This second edition cancels and replaces the first edition published in 2006 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- Clauses 18 to 22 have been adapted to IEC 61534-1:2011 and include short-circuit test requirements;
- Additional classification, terms and requirements for wall powertrack (PT) systems mounted at the skirting level (close to the floor) position.
This publication is to be read in conjunction with IEC 61534-1:2011.

Systèmes de conducteurs préfabriqués - Partie 21: Exigences particulières pour les systèmes de conducteurs préfabriqués destinés au montage sur des murs et des plafonds

L'IEC 61534-21:2014 spécifie les exigences particulières et les essais des systèmes de conducteurs préfabriqués destinés au montage sur des murs et/ou des plafonds. Ils peuvent être installés encastrés ou semi-encastrés, en saillie, suspendus à ou espacés de la surface au moyen d'accessoires de fixation. Cette deuxième édition annule et remplace la première édition parue en 2006 et constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- Les Articles 18 à 22 ont été adaptés par rapport à l'IEC 61534-1:2011 et comprennent des exigences d'essai de court-circuit;
- Ajout de classifications, de termes et d'exigences pour les systèmes de conducteurs préfabriqués (PT, powertrack) pour mur montés en plinthe (proche du plancher).
Cette publication doit être lue conjointement avec l'IEC 61534-1:2011.

General Information

Status
Published
Publication Date
18-Jun-2014
Current Stage
PPUB - Publication issued
Start Date
19-Jun-2014
Completion Date
19-Jun-2014
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IEC 61534-21
Edition 2.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Powertrack systems –
Part 21: Particular requirements for powertrack systems intended for wall and
ceiling mounting
Systèmes de conducteurs préfabriqués –
Partie 21: Exigences particulières pour les systèmes de conducteurs
préfabriqués destinés au montage sur des murs et des plafonds
IEC 61534-21:2014-06(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61534-21
Edition 2.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Powertrack systems –
Part 21: Particular requirements for powertrack systems intended for wall and
ceiling mounting
Systèmes de conducteurs préfabriqués –
Partie 21: Exigences particulières pour les systèmes de conducteurs
préfabriqués destinés au montage sur des murs et des plafonds
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX L
ICS 29.060.10, 29.120.20 ISBN 978-2-8322-1642-2

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

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61534-21:2014 © IEC 2014
CONTENTS

FOREWORD ........................................................................................................................... 3

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 General requirements ...................................................................................................... 6

5 General notes on tests .................................................................................................... 6

6 Ratings ............................................................................................................................ 6

7 Classification ................................................................................................................... 6

8 Marking and documentation ............................................................................................. 7

9 Construction .................................................................................................................... 7

10 Clearances, creepage distances and solid insulation ....................................................... 7

11 Protection against electric shock ..................................................................................... 7

12 Terminals and terminations .............................................................................................. 7

13 Screws, current carrying parts and connections ............................................................... 7

14 Mechanical strength ........................................................................................................ 7

15 Insulation resistance test and dielectric strength test ....................................................... 9

16 Normal operation ............................................................................................................. 9

17 Temperature rise ............................................................................................................. 9

18 Short-circuit protection and short-circuit withstand strength ............................................. 9

19 Resistance to heat ........................................................................................................... 9

20 Fire hazard ...................................................................................................................... 9

21 External influences .......................................................................................................... 9

22 Electromagnetic compatibility .......................................................................................... 9

Annex AA (normative) Additional test requirements for PT systems already complying

with IEC 61534-21:2006 ........................................................................................................ 10

---------------------- Page: 4 ----------------------
IEC 61534-21:2014 © IEC 2014 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
POWERTRACK SYSTEMS –
Part 21: Particular requirements for powertrack systems
intended for wall and ceiling mounting
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

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

International Standard IEC 61534-21 has been prepared by subcommittee 23A: Cable
management systems, of IEC technical committee 23: Electrical accessories.

This second edition cancels and replaces the first edition published in 2006 and constitutes a

technical revision.

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

edition:

• Clauses 18 to 22 have been adapted to IEC 61534-1:2011 and include short-circuit test

requirements;

• Additional classification, terms and requirements for wall powertrack (PT) systems

mounted at the skirting level (close to the floor) position.
---------------------- Page: 5 ----------------------
– 4 – IEC 61534-21:2014 © IEC 2014
The text of this standard is based on the following documents:
FDIS Report on voting
23A/701/FDIS 23A/707/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.

This standard is to be used in conjunction with IEC 61534-1:2011, Powertrack systems –

Part 1: General requirements.

This Part 21 supplements or modifies the corresponding clauses of IEC 61534-1. Where a

particular clause or subclause of IEC 61534-1:2011 is not mentioned in this Part 21, that

clause or subclause applies as far as is reasonable. Where this Part 21 states "addition” or

"replacement", the relevant text of IEC 61534-1:2011 is to be adapted accordingly.

Subclauses, tables and figures which are in addition to those in IEC 61534-1:2011 are

numbered starting with 101.

A list of all parts in the IEC 61534 series, published under the general title Powertrack

systems, can be found on the IEC website.

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.
---------------------- Page: 6 ----------------------
IEC 61534-21:2014 © IEC 2014 – 5 –
POWERTRACK SYSTEMS –
Part 21: Particular requirements for powertrack systems
intended for wall and ceiling mounting
1 Scope

Clause 1 of IEC 61534-1:2011 and IEC 61534-1:2011/AMD1:2014 is applicable except as

follows:
1.1 Addition:

This part of IEC 61534 specifies the particular requirements and tests for PT systems

intended for mounting on walls and/or ceiling. They may be installed flush or semi-flush,

surface mounted, suspended or spaced away from the surface using fixing devices.
2 Normative references
Clause 2 of IEC 61534-1:2011 is applicable except as follows:
Addition:
IEC 61534-1:2011, Powertrack systems – Part 1: General requirements
IEC 61534-1:2011/AMD1:2014
3 Terms and definitions

Clause 3 of IEC 61534-1:2011 and IEC 61534-1:2011/AMD1:2014 is applicable except as

follows:
Additional terms and definitions:
3.101
wall PT system

PT system which is suitable for mounting on a vertical surface or a vertical structure directly

or with the use of fixing devices
3.102
ceiling PT system

PT system which is suitable for mounting or suspending beneath a horizontal surface or

horizontal structure directly or with the use of fixing devices
3.103
fixing devices

system component used for the mechanical connection of the PT system to the supporting

surface or supporting structure
3.104
external load

mechanical load applied to the PT system from outside and not due to the mass of the system

components
---------------------- Page: 7 ----------------------
– 6 – IEC 61534-21:2014 © IEC 2014
3.105
suspension means
mechanism for supporting a load (e.g. a luminaire) that hangs from the PT system
3.106
skirting PT system

PT system which is suitable for mounting on the lower part of a wall close to the floor

4 General requirements
Clause 4 of IEC 61534-1:2011 is applicable.
5 General notes on tests
Clause 5 of IEC 61534-1:2011 is applicable except as follows:
5.3 Addition:
3 samples: subclause 14.3.101
3 samples: subclause 14.3.102
3 samples: subclause 14.3.103
6 Ratings
Clause 6 of IEC 61534-1:2011 is applicable.
7 Classification
Clause 7 of IEC 61534-1:2011 is applicable except as follows:
Additional subclauses:
7.101 According to external load withstand capability
7.101.1 Wall PT system
7.101.1.1 Wall PT system not intended to withstand an external load
7.101.1.2 Wall PT system capable of withstanding an external load from above
7.101.2 Ceiling PT system
7.101.2.1 Ceiling PT system not intended to withstand an external load
7.101.2.2 Ceiling PT system capable of withstanding an external load from above
7.102 According to provision for suspended loads
7.102.1 PT System without provision for suspended loads
7.102.2 PT System with provision for suspended loads
---------------------- Page: 8 ----------------------
IEC 61534-21:2014 © IEC 2014 – 7 –
7.103 According to floor treatment when the PT system is mounted at the skirting
position
7.103.1 Dry-treatment of floor
7.103.2 Wet-treatment of floor
8 Marking and documentation

Clause 8 of IEC 61534-1:2011 and IEC 61534-1:2011/AMD1:2014 is applicable except as

follows:
8.5 Addition of the following dashed items:

– for PT system according to 7.101.1.2 and 7.101.2.2, the maximum load in kg which can be

withstood

– for PT system according to 7.102.2, the maximum load in kg which can be suspended

9 Construction
Clause 9 of IEC 61534-1:2011 is applicable.
10 Clearances, creepage distances and solid insulation
Clause 10 of IEC 61534-1:2011 is applicable.
11 Protection against electric shock
Clause 11 of IEC 61534-1:2011 and IEC 61534-1:2011/AMD1:2014 is applicable.
12 Terminals and terminations
Clause 12 of IEC 61534-1:2011 is applicable.
13 Screws, current carrying parts and connections
Clause 13 of IEC 61534-1:2011 and IEC 61534-1:2011/AMD1:2014 is applicable.
14 Mechanical strength
Clause 14 of IEC 61534-1:2011 is applicable except as follows:
14.3 Static load test
Delete subclauses 14.3.1, 14.3.2 and 14.3.3.
Additional subclauses:
14.3.101 External load test
PT systems shall withstand mechanical stresses applied to the PT system.
---------------------- Page: 9 ----------------------
– 8 – IEC 61534-21:2014 © IEC 2014
Compliance is checked by the following test.

At least two lengths of the PT system are joined together including the electrical connection

and installed according to the manufacturer's instructions to a rigid support; the joint shall be

placed midway between the fixing devices.

A steel plate with a length of (150 ± 20) mm, a width not less than the PT system and a

thickness of (5 ± 1) mm is positioned on the upper surface of the PT system centrally at the

midpoint between the supports. For classifications 7.101.1.1 and 7.101.2.1, a vertical force is

gradually applied on the steel plate up to (350 ± 10) N over a period of (60 ± 1) s and

maintained for (60 ± 1) min. For classifications according to 7.101.1.2 and 7.101.2.2, a

vertical force is gradually applied on the steel plate up to (750 ± 10) N or with a force declared

by the manufacturer ± 2 %, whichever is the higher over a period of (60 ± 1) s and maintained

for (60 ± 1) min.

During the tests, the sample shall not break and shall neither have parts that have worked

loose, nor shall it show any deformation likely to impair electrical safety.
After the test:

– The sample shall comply with Clause 10 and 11.1 of IEC 61534-1:2011 and IEC 61534-

1:2011/AMD1:2014.

– There shall be no permanent deformation, which would prevent the correct insertion and

withdrawal of the tap-off units.

– The samples shall withstand the test according to 15.2 but without the pre-conditioning of

15.1, and the tests of 11.3 of IEC 61534-1:2011 and IEC 61534-1:2011/AMD1:2014.
14.3.102 PT systems with provision for suspended loads

PT systems classified according to 7.102.2 shall withstand mechanical loads applied to the

suspension means in normal use.
Compliance is checked by the following test.

The provision for the suspension means is installed as for normal use according to the

manufacturer's instructions. Screwed connections, if any, intended to provide mechanical

support of the suspension means are tightened to the torque given in the relevant column of

Table 5 of IEC 61534-1:2011 if not specified by the manufacturer.
The suspension means is then loaded, without jerks, with a force declared by the

manufacturer ± 2 % or if no force is declared then the test shall be performed with a force of

(250 ± 5) N , for (24 ± 1) h.

During the test, the PT system and the suspension means shall not become detached from

one another and shall show no damage, which leads to non-compliance with this standard.

14.3.103 PT systems with tap-off units

In normal use, the construction of the tap-off unit shall be such as to prevent disconnection

from the PT or live parts becoming accessible.
Compliance is checked by the following test.

The tap-off unit is inserted as in normal use 10 times and withdrawn 10 times in the tap-off

outlet with the PT system installed in normal use as declared by the manufacturer.

---------------------- Page: 10 ----------------------
IEC 61534-21:2014 © IEC 2014 – 9 –

The tap-off unit is inserted once more into the tap-off outlet as in normal use and a withdrawal

force of (30 ± 1) N is applied for (60 ± 5) s parallel to the force on the tap-off unit in normal

use as declared by the manufacturer.

The tap-off unit shall not become disconnected from the PT and live parts shall not become

accessible when tested according to 11.1.1.1 of IEC 61534-1:2011 and
IEC 61534-1:2011/AMD1:2014.
15 Insulation resistance test and dielectric strength test
Clause 15 of IEC 61534-1:2011 is applicable.
16 Normal operation
Clause 16 of IEC 61534-1:2011 is applicable.
17 Temperature rise
Clause 17 of IEC 61534-1:2011 is applicable.
18 Short-circuit protection and short-circuit withstand strength
Clause 18 of IEC 61534-1:2011 is applicable.
19 Resistance to heat
Clause 19 of IEC 61534-1:2011 is applicable.
20 Fire hazard
Clause 20 of IEC 61534-1:2011 is applicable.
21 External influences
Clause 21 of IEC 61534-1:2011 is applicable except as follows:
Delete subclause 21.1.3.
Additional subclause:
21.2.101 Protection against ingress of water for wet treatment of the floor

Where PT systems are fitted at the skirting position and the floor is subject to wet treatment

then the PT system shall have a minimum degree of protection of IP X4.
22 Electromagnetic compatibility
Clause 22 of IEC 61534-1:2011 is applicable.
---------------------- Page: 11 ----------------------
– 10 – IEC 61534-21:2014 © IEC 2014
Annexes

The annexes of IEC 61534-1:2011 and IEC 61534-1:2011/AMD1:2014 are applicable except

as follows:
Additional annex:
Annex AA
(normative)
Additional test requirements for PT systems
already complying with IEC 61534-21:2006

PT systems already complying with IEC 61534-21:2006 only require testing in accordance

with the following clauses if appropriate:
18 Short-circuit protection and short-circuit withstand strength.

21.2.101 According to floor treatment when the PT system is mounted at the skirting

position declared according to 7.103.2.
_____________
---------------------- Page: 12 ----------------------
– 12 – IEC 61534-21:2014 © IEC 2014
SOMMAIRE

AVANT-PROPOS .................................................................................................................. 13

1 Domaine d'application ................................................................................................... 15

2 Références normatives .................................................................................................. 15

3 Termes et définitions ..................................................................................................... 15

4 Exigences générales ..................................................................................................... 16

5 Notes générales sur les essais ...................................................................................... 16

6 Caractéristiques assignées ............................................................................................ 16

7 Classification ................................................................................................................. 16

8 Marquage et documentation .......................................................................................... 17

9 Construction .................................................................................................................. 17

10 Distances d'isolement dans l'air, lignes de fuite et isolation solide ................................. 17

11 Protection contre les chocs électriques .......................................................................... 17

12 Bornes et terminaisons .................................................................................................. 17

13 Vis, pièces transportant le courant et connexions .......................................................... 17

14 Résistance mécanique ................................................................................................... 17

15 Essai de résistance d'isolement et essai de rigidité diélectrique .................................... 19

16 Fonctionnement normal ................................................................................................. 19

17 Echauffement ................................................................................................................ 19

18 Protection contre les courts-circuits et résistance aux courts-circuits ............................. 19

19 Résistance à la chaleur ................................................................................................. 19

20 Risques du feu .............................................................................................................. 19

21 Influences externes ....................................................................................................... 19

22 Compatibilité électromagnétique .................................................................................... 20

Annexe AA (normative) Exigences d’essai supplémentaires pour les systèmes PT

satisfaisant déjà à l'IEC 61534-21:2006 ................................................................................ 21

---------------------- Page: 13 ----------------------
IEC 61534-21:2014 © IEC 2014 – 13 –
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
SYSTÈMES DE CONDUCTEURS PRÉFABRIQUÉS –
Partie 21: Exigences particulières pour les systèmes de conducteurs
préfabriqués destinés au montage sur des murs et des plafonds
AVANT-PROPOS

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composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de l’IEC). L’IEC a pour

objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines

de l'électricité et de l'électronique. A cet effet, l’IEC – entre autres activités – publie des Normes

internationales, des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au

public (PAS) et des Guides (ci-après dénommés "Publication(s) de l’IEC"). Leur élaboration est confiée à des

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selon des conditions fixées par accord entre les deux organisations.

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du possible, un accord international
...

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