EN 61386-24:2010

SLOVENSKI STANDARD
01-december-2010
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SIST EN 50086-2-4:1999
SIST EN 50086-2-4:1999/A1:2002
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Conduit systems for cable management - Part 24: Particular requirements - Conduit
systems buried underground (IEC 61386-24:2004)
Installationsrohrsysteme zum Führen von Leitungen für elektrische Energie und für
Information - Teil 2-4: Besondere Anforderungen für erdverlegte
Elektroinstallationsrohrsystem (IEC 61386-24:2004)
Systèmes de conduits pour la gestion du câblage - Partie 24: Règles particulières -
Systèmes de conduits enterrés dans le sol (CEI 61386-24:2004)
Ta slovenski standard je istoveten z: EN 61386-24:2010
ICS:
29.120.10 ,QãWDODFLMVNHFHYL]D Conduits for electrical
HOHNWULþQHQDPHQH purposes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 61386-24
NORME EUROPÉENNE
October 2010
EUROPÄISCHE NORM
ICS 29.120.10 Supersedes EN 50086-2-4:1994 + corr. Feb.2001 + A1:2001

English version
Conduit systems for cable management -
Part 24: Particular requirements -
Conduit systems buried underground
(IEC 61386-24:2004)
Systèmes de conduits pour la gestion  Installationsrohrsysteme zum Führen
du câblage - von Leitungen für elektrische Energie
Partie 24: Règles particulières - und für Information -
Systèmes de conduits enterrés dans le sol Teil 2-4: Besondere Anforderungen
(CEI 61386-24:2004) für erdverlegte
Elektroinstallationsrohrsystem
(IEC 61386-24:2004)
This European Standard was approved by CENELEC on 2010-10-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61386-24:2010 E
Foreword
The text of the International Standard IEC 61386-24:2004, prepared by SC 23A, Cable management
systems, of IEC TC 23, Electrical accessories, was submitted to the Unique Acceptance Procedure and
was approved by CENELEC as EN 61386-24 on 2010-10-01 without any modification.
This European Standard supersedes EN 50086-2-4:1994 + corr. Feb.2001 + A1:2001.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2011-10-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2013-10-01
This Part 24, which specifies particular requirements for conduit systems buried underground, is to be
used in conjunction with EN 61386-1, Conduit systems for cable management – Part 1: General
Requirements, and its amendments. It was established on the basis of the first edition (2004) of that
standard and its Amendment 1 (2000).
This Part 24 supplements or modifies the corresponding clauses of EN 61386-1. Where a particular
clause or subclause of Part 1 is not mentioned in this Part 24, that clause or subclause applies as far as
is reasonable. Where this Part 24 states "addition", "modification" or "replacement", the relevant text of
Part 1 is to be adapted accordingly.
Subclauses, tables and figures which are in addition to those in Part 1 are numbered starting with 101.
A conduit system which complies with this standard, is deemed safe for use when installed in accordance
with national wiring regulations, whilst applying the manufactures installation instructions and conduit
classification.
NOTE The following print types are used:
− requirements: in roman type
− test specifications: in italic type
− notes: in small roman type
EN 61386 consists of the following parts, under the general title Conduits systems for cable management:
Part 1: General requirements
Part 21: Particular requirements – Rigid conduit systems
Part 22: Particular requirements – Pliable conduit systems
Part 23: Particular requirements – Flexible conduit systems
Part 24: Particular requirements – Conduit systems buried underground
Part 25: Particular requirements – Conduit fixing devices
Future standards in this series will carry the new general title as cited above. Titles of existing standards
in this series will be updated at the time of the next edition.
Annexes ZA and ZB have been added by CENELEC.

- 3 - EN 61386-24:2010
Endorsement notice
The text of the International Standard IEC 61386-24:2004 was approved by CENELEC as a European
Standard without any modification.
__________
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Annex ZA of Part 1 is applicable except as follows:

EN 60423, Not applicable
EN 60670, Not applicable
Addition:
Publication Year Title EN/HD Year

ISO 161-1 1996 Thermoplastics pipes for the conveyance of - -
fluids - Nominal outside diameters and
nominal pressures -
Part 1: Metric series
ISO 2768-1 1989 General tolerances - EN 22768-1 1993
Part 1: Tolerances for linear and angular
dimensions without individual tolerance
indications
- 5 - EN 61386-24:2010
Annex ZB
(normative)
Special national conditions
Special national condition: National characteristic or practice that cannot be changed even over a
long period, e.g. climatic conditions, electrical earthing conditions.
NOTE If it affects harmonization, it forms part of the European Standard or Harmonization Document.
For the countries in which the relevant special national conditions apply these provisions are
normative, for other countries they are informative.
Clause Special national condition
General Denmark According to the installation practice in Denmark conduit systems buried underground
have to be in the colour “red no 5” according to DS 735 (1982) or “red” according to IEC 304 (1982).

NORME CEI
INTERNATIONALE IEC
61386-24
INTERNATIONAL
Première édition
STANDARD
First edition
2004-07
Systèmes de conduits pour la gestion
du câblage –
Partie 24:
Règles particulières –
Systèmes de conduits enterrés dans le sol
Conduit systems for cable management –
Part 24:
Particular requirements –
Conduit systems buried underground
© IEC 2004 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
PRICE CODE N
Commission Electrotechnique Internationale
International Electrotechnical Commission
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Pour prix, voir catalogue en vigueur
For price, see current catalogue

61386-24 © IEC:2004 – 3 –
CONTENTS
FOREWORD.5
1 Scope.9
2 Normative references.9
3 Definitions.9
4 General requirements.9
5 General conditions for tests.9
6 Classification.9
7 Marking and documentation.11
8 Dimensions.13
9 Construction.13
10 Mechanical properties.13
11 Electrical properties.17
12 Thermal properties.17
13 Fire effects.17
14 External influences.19
15 Electromagnetic compatibility.19
Annex A (normative) Classification coding for conduit systems .27
Annex B (normative) Determination of material thickness.27
Figure 101 – Impact test apparatus.23
Figure 102 – Bending test apparatus .25
Table 101 – conduits diameters .19
Table 102 – Impact test energy values.21

61386-24 © IEC:2004 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONDUIT SYSTEMS FOR CABLE MANAGEMENT –
Part 24: Particular requirements – Conduit systems
buried underground
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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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
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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 clear
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