HD 626-S2:2025

SLOVENSKI STANDARD
01-december-2025
Nadomešča:
SIST HD 626 S1:1998
SIST HD 626 S1:1998/A1:1998
SIST HD 626 S1:1998/A2:2002
Nadzemni razvodni kabli za naznačeno napetost Uo/U(Um): 0,6/1 (1,2) kV
Overhead distribution cables of rated voltage U0/U(Um): 0,6/1 (1,2) kV
Isolierte Freileitungsseile für oberirdische Verteilungsnetze mit Nennspannungen U0/U
(Um): 0,6/1 (1,2) kV
Câbles de distribution aériens de tension assignée U0/U(Um): 0,6/1 (1,2) kV
Ta slovenski standard je istoveten z: HD 626-S2:2025
ICS:
29.060.20 Kabli Cables
29.240.20 Daljnovodi Power transmission and
distribution lines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONIZATION DOCUMENT HD 626-S2

DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT October 2025
ICS 29.060.20 Supersedes HD 626 S1:1996; HD 626 S1:1996/A1:1997;
HD 626 S1:1996/A2:2002
English Version
Overhead distribution cables of rated voltage U /U(U ): 0,6/1
0 m
(1,2) kV
Câbles de distribution aériens de tension assignée Isolierte Freileitungsseile für oberirdische Verteilungsnetze
U /U(U ): 0,6/1 (1,2) kV mit Nennspannungen U /U(U ): 0,6/1 (1,2) kV
0 m 0 m
This Harmonization Document was approved by CENELEC on 2025-10-06. CENELEC members are bound to comply with the
CEN/CENELEC Internal Regulations which stipulate the conditions for implementation of this Harmonization Document at national level.
Up-to-date lists and bibliographical references concerning such national implementations may be obtained on application to the CEN-
CENELEC Management Centre or to any CENELEC member.
This Harmonization Document exists in three official versions (English, French, German).
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
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. HD 626-S2:2025 E
HD 626 S2:2025
Part 1
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 7
1.1 General . 7
1.2 Object . 7
2 Normative references . 7
3 Terms and definitions . 7
3.1 Definitions relating to insulating and sheathing materials . 7
3.2 Definitions relating to the tests. 8
3.3 Other . 9
4 Marking . 9
4.1 Indication of origin . 9
4.1.1 General . 9
4.1.2 Continuity of marks . 10
4.2 Additional marking . 10
4.3 Durability . 10
4.4 Legibility . 10
4.5 Common marking . 10
4.6 Use of the name CENELEC . 10
5 Core identification . 10
6 General requirements for the construction of cables . 12
6.1 General . 12
6.2 Conductors. 12
6.2.1 Material . 12
6.2.2 Electrical resistance . 12
6.2.3 Separator tape . 12
6.3 Insulation or insulating sheath . 12
6.3.1 Material . 12
6.3.2 Application . 12
6.3.3 Colour of the insulation . 12
6.3.4 Thickness . 13
6.3.5 Mechanical properties before and after ageing . 13
6.3.6 Additional properties . 13
6.4 Oversheath (if any) . 13
6.4.1 Material . 13
6.4.2 Application . 13
HD 626 S2:2025
Part 1
6.4.3 Colour of the sheath . 13
6.4.4 Thickness . 13
6.4.5 Mechanical properties before and after ageing . 13
6.4.6 Other properties . 13
6.5 Assembly of cores . 13
7 Tests on completed cables . 14
8 Sealing and packing . 14
9 Current carrying capacity . 14
10 Guide to use and selection of cables . 14
Annex A (normative)  Guide to use and selection of cables . 25
A.1 Recommendations for use . 25
A.1.1 Permissible applications . 25
A.1.2 Highest permissible voltage . 25
A.2 Recommendations for storage and transportation . 25
A.2.1 Delivery . 25
A.2.2 Cable-end sealing . 26
A.2.3 Transport . 26
A.3 Recommendations for cable laying and installation . 27
A.3.1 Installation and operating conditions . 27
A.3.2 Minimum permissible installation temperature . 27
A.3.3 Cable laying . 28
A.3.3.1 Pulling by cable stocking . 28
A.3.3.2 Cable route . 28
A.4 Minimum bending radius . 28
Bibliography . 29
HD 626 S2:2025
Part 1
European foreword
This document (HD 626 S2:2025) has been prepared by CLC/TC 20, “Electric cables”.
The following dates are fixed:
• latest date by which this document has to be (dop) 2026-10-31
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2028-10-31
conflicting with this document have to be
withdrawn
This document supersedes HD 626 S1:1996 and all of its amendments and corrigenda (if any).
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.
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.
References to other HDs, ENs and International Standards are given in the particular parts or sections.
HD 626 S2:2025
Part 1
Introduction
This edition has been prepared to cover the latest market requests on overhead distribution cables of rated
voltage Uo/U(Um): 0,6/1 (1,2) kV. Since the publication of the first edition in 1996 and the amendments in 1997
and 2002, a number of particular sections have been withdrawn, new sections have been added from countries
not covered in the first edition, technical improvements have been added and a number of references to test
method standards were updated. The Table of Contents indicates even the withdrawn sections.
Part 1 of this document contains the General Requirements applicable to cables for overhead distribution and
service, specified in the particular sections of Parts 3 to 10. In general, bundle assembled cores are specified.
Single core cables are specified in Part 9.
The document contains the following Parts, arranged according to the main constructional features of the cables
covered:
HD 626 Part 1 General Requirements
HD 626 Part 2 Additional Test Methods
HD 626 Part 3 PE insulated self-supporting cables, (bundle assembled cores)
HD 626 Part 4 XLPE insulated self-supporting cables, (bundle assembled cores)
HD 626 Part 5 PE insulated cables with messenger, (bundle assembled cores)
HD 626 Part 6 XLPE insulated cables with messenger, (bundle assembled cores)
HD 626 Part 7 XLPE insulated and sheathed self-supporting cables, (bundle assembled cores)
HD 626 Part 8 XLPE insulated and PVC sheathed cables with messenger, (bundle assembled cores)
HD 626 Part 9 Single core cables
HD 626 Part 10 Service cables with concentric neutral conductor
Each of Parts 3 to 10 inclusive contains a number of Sections, and the Technical Board has
...