EN 50626-1:2023

SLOVENSKI STANDARD
01-september-2023
Podzemni kanalski sistem za zaščito in upravljanje izoliranih električnih ali
komunikacijskih kablov - 1. del: Splošne zahteve
Conduit systems buried underground for the protection and management of insulated
electrical cables or communication cables - Part 1: General requirements
Erdverlegte Elektroinstallationsrohrsysteme für den Schutz und die Führung isolierter
elektrischer Kabel oder Fernmeldekabel – Teil 1: Allgemeine Anforderungen
Systèmes de conduits enterrés dans le sol pour la protection et la gestion des câbles
électriques isolés ou des câbles de communication - Partie 1: Exigences générales
Ta slovenski standard je istoveten z: EN 50626-1:2023
ICS:
29.120.10 Inštalacijske cevi za Conduits for electrical
električne namene purposes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50626-1
NORME EUROPÉENNE
EUROPÄISCHE NORM July 2023
ICS 29.120.10 Supersedes EN 61386-24:2010
English Version
Conduit systems buried underground for the protection and
management of insulated electrical cables or communication
cables - Part 1: General requirements
Systèmes de conduits enterrés dans le sol pour la Erdverlegte Elektroinstallationsrohrsysteme für den Schutz
protection et la gestion des câbles électriques isolés ou des und die Führung isolierter elektrischer Kabel oder
câbles de communication - Partie 1: Exigences générales Fernmeldekabel - Teil 1: Allgemeine Anforderungen
This European Standard was approved by CENELEC on 2021-10-25. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50626-1:2023 E
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General requirements . 8
5 General conditions for tests . 8
6 Classification . 9
6.1 According to mechanical properties . 9
6.1.1 Resistance to compression . 9
6.1.2 Resistance to impact . 9
6.1.3 Resistance to bending . 9
6.2 According to resistance to external influences . 10
6.2.1 Protection against ingress of solid objects . 10
6.2.2 Protection against ingress of water . 10
6.2.3 Resistance against corrosion (only applicable to metallic and composite
system components) . 10
6.3 According to resistance to flame propagation . 10
6.3.1 Non-flame propagating . 10
6.3.2 Flame propagating . 10
7 Marking and documentation . 10
8 Dimensions . 12
9 Construction . 13
10 Mechanical properties . 14
10.1 Mechanical strength . 14
10.2 Compression test . 14
10.3 Impact test . 15
10.4 Bending test . 16
11 Fire hazard . 17
11.1 Reaction to fire . 17
11.1.1 Spread of fire . 17
11.1.2 Additional reaction to fire characteristics . 21
12 External influences . 21
12.1 Degree of protection provided by enclosure . 21
12.1.1 General . 21
12.1.2 Degree of protection – Ingress of foreign solid objects . 21
12.1.3 Degree of protection – Ingress of water . 21
12.2 Resistance against corrosion . 21
13 Electromagnetic compatibility . 23
Annex A (normative) Determination of material thickness . 24
A.1 Material thickness of plain conduit . 24
A.2 Material thickness of corrugated conduit . 24
A.3 Material thickness of combined plain conduit and corrugated conduit . 25
A.4 Material thickness of plain conduit, with an intermediate corrugated layer . 25
Annex B (normative) Special national conditions . 26
Annex ZZ (informative) Relationship between this European standard and the safety
objectives of Directive 2014/35/EU [2014 OJ L96] aimed to be covered . 27
Bibliography . 28
European foreword
This document (EN 50626-1:2023) has been prepared by CLC/TC 213, “Cable management systems”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2024-01-21
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2026-07-21
conflicting with this document have to be
withdrawn
This document supersedes EN 61386-24:2010 and all of its amendments and corrigenda (if any).
— the scope has been modified for clarity and relationship with EN 50626-2;
— normative references have been updated;
— new definitions have been introduced;
— changes to general conditions for tests;
— changes to classifications;
— changes to tests for marking;
— changes to figure numbers;
— Clause 11 has been deleted and subsequent clauses renumbered;
— Clause 12 and Clause 13 have been replaced by new Clause 11.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Standardization Request given to CENELEC by the European
Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s)
/ Regulation(s).
For relationship with EU Directive(s) / Regulation(s), see informative Annex ZZ, which is an integral part of this
document.
Any feedback and questions on this document should be directed to the users’ national committee. A complete
listing of these bodies can be found on the CENELEC website.
Introduction
CENELEC TC 213 is responsible for the development of the EN 50626 series, which consists of two separate
parts, both covering different products/applications.
This document covers requirements and tests for conduit systems buried underground for the protection and
management of insulated conductors and/or power cables or communication cables.
EN 50626-2 covers requirements and tests for conduit systems buried underground for the protection and
management of insulated conductors and/or power cables or communication cables having a specified
performance time and which are leak-tight solid wall conduit systems and manufactured in PE, PP and PVC-U.
A conduit system buried underground that conforms to this document is deemed to be safe for use.
This is a European Standard for cable management products used for electro-technical purposes. It relates to
the Council Directives on the approximation of laws, regulations and administrative provisions of the Member
States relating to Low Voltage Directive 2014/35/EU through consideration of the essential requirements of this
directive.
This document is supported by separate standards to which references are made.
1 Scope
This document specifies requirements and tests for conduit systems with circular cross section buried
underground for the protection and management of insulated conductors and/or power cables or communication
cables installed individually or installed as a part of an assembly where the cable is installed by pulling or
pushing.
This document does not include requirements for leak-tightness according to EN ISO 13259 and performance
time.
NOTE 1 EN 50626-2 specifies requirements and tests for performance time and leak-tightness for solid wall conduit
systems made of PE, PP and PVC-U buried underground where the cables are installed by blowing or floating or conduits
are installed by trenchless methods.
NOTE 2 It is the responsibility of the purchaser or specifier to take into account any relevant national regulations and
installation practices or codes when selecting the products to be installed, based on the characteristics specified in this
document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements 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.
Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989)
EN 60529:1991,
EN 60695-2-11:2014, Fire hazard testing - Part 2-11: Glowing/hot-wire based test methods - Glow-wire
flammability test method for end-products (GWEPT) (IEC 60695-2-11:2014)
EN 60695-11-2:2017, Fire hazard testing - Part 11-2: Test flames - 1 kW nominal pre-mixed flame - Apparatus,
confirmatory test arrangement and guidance (IEC 60695-11-2:2013)
ISO 2768-1:1989, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual
tolerance indications
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
3.1
conduit system
cable management system consisting of conduits and conduit fittings for the protection and management of
insulated conductors and/or cables in electrical or communication installations, allowing them to be drawn in
and
...