EN 50397-1:2020

SLOVENSKI STANDARD
01-januar-2021
Nadomešča:
SIST EN 50397-1:2007
Oplaščeni vodniki za nadzemne vode in ustrezen pribor za naznačene izmenične
napetosti nad 1 kV, ki ne presegajo 36 kV - 1. del: Oplaščeni vodniki
Covered conductors for overhead lines and the related accessories for rated voltages
above 1 kV AC and not exceeding 36 kV AC - Part 1: Covered conductors
Kunststoffumhüllte Leiter und zugehörige Armaturen für Freileitungen mit
Nennspannungen über 1 kV und nicht mehr als 36 kV Wechselspannung - Teil 1:
Kunststoffumhüllte Freileitungsseile
Conducteurs gainés pour lignes aériennes et accessoires associés pour des tensions
assignées supérieures à 1 kV en courant alternatif et ne dépassant pas 36 kV en courant
alternatif - Partie 1: Conducteurs gainés
Ta slovenski standard je istoveten z: EN 50397-1:2020
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.

EUROPEAN STANDARD EN 50397-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2020
ICS 29.240.20 Supersedes EN 50397-1:2006 and all of its amendments
and corrigenda (if any)
English Version
Covered conductors for overhead lines and the related
accessories for rated voltages above 1 kV AC and not exceeding
36 kV AC - Part 1: Covered conductors
Conducteurs gainés pour lignes aériennes et accessoires Kunststoffumhüllte Leiter und zugehörige Armaturen für
associés pour des tensions assignées supérieures à 1 kV Freileitungen mit Nennspannungen über 1 kV und nicht
en courant alternatif et ne dépassant pas 36 kV en courant mehr als 36 kV Wechselspannung - Teil 1:
alternatif - Partie 1: Conducteurs gainés Kunststoffumhüllte Freileitungsseile
This European Standard was approved by CENELEC on 2020-10-26. 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,
Turkey 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50397-1:2020 E
Contents Page
European foreword . 4
Introduction .5
1 Scope . 6
2 Normative references . 6
3 Definitions . 7
4 Covered conductors . 7
4.1 Code designation . 7
4.2 Construction requirements . 8
4.2.1 Conductor . 8
4.2.2 Filling. 8
4.2.3 Covering . 8
5 Marking . 10
5.1 Indication of origin . 10
5.2 Continuity of marks . 10
5.3 Other markings. 11
5.4 Durability . 11
5.5 Legibility . 11
6 Tests . 11
Annex A (normative) Measurement of the leakage current . 14
A.1 Test equipment . 14
A.2 Sampling . 14
A.3 Test procedure . 15
A.4 Test evaluation . 15
Annex B (normative) Tracking resistance . 16
B.1 Scope and object . 16
B.2 Definitions . 16
B.3 Test specimens . 16
B.3.1 Dimensions . 16
B.3.2 Preparation . 17
B.4 Apparatus . 17
B.4.1 Electrical apparatus . 17
B.4.1.1 General. 17
B.4.1.2 Power supply . 17
B.4.1.3 Resistor. 17
B.4.1.4 Voltmeter . 18
B.4.1.5 Overcurrent delay relay . 18
B.4.2 Electrodes . 19
B.4.2.1 General. 19
B.4.2.2 Top electrode. 19
B.4.2.3 Bottom electrode . 20
B.4.3 Contamination . 20
B.4.3.1 Contaminant . 20
B.4.3.2 Applicator paper . 20
B.4.3.3 Contaminant flow . 21
B.4.3.4 Flow rate . 21
B.4.4 Timing device . 21
B.4.5 Depth gauge . 21
B.5 Procedure . 22
B.5.1 Preparation of the test . 22
B.5.1.1 Ambient conditions . 22
B.5.1.2 Mounting . 22
B.5.1.3 Adjustment of the contaminant flow . 22
B.5.2 Application of the voltage. 22
B.5.3 Test evaluation . 22
B.6 Test report . 22
Annex C (normative) Slippage test . 23
C.1 Scope and object . 23
C.2 Definitions . 23
C.3 Test specimens . 23
C.3.1 Dimensions . 23
C.3.2 Preparation . 23
C.4 Apparatus — clamp. 24
C.5 Procedure and requirements . 24
C.5.1 General. 24
C.5.2 Test conditions . 24

C.6 Test report . 25
Annex D (normative) Non-electrical test on samples of complete cable — Resistance
to UV rays 26
D.1 Resistance to UV rays . 26
Bibliography . 28
European foreword
This document (EN 50397-1:2020) has been prepared by WG 13 “Covered Overhead Line Conductors” of
CLC/TC 20 “Electric cables”.
The following dates are fixed:
• latest date by which this document has (dop) 2021-10-26
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2023-10-26
standards conflicting with this document
have to be withdrawn
This document supersedes EN 50397-1:2006 and all of its amendments and corrigenda (if any).
— new references to HD 605 S3 2019.
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.
The EN 50397 series consists of three parts:
— Part 1, “Covered conductors”;
— Part 2, “Accessories for covered conductors: Tests and acceptance criteria”; and
— Part 3, “Guide to use”
Introduction
The EN 50397 series covers the construction, performance and test requirements for covered conductors
for overhead lines having a nominal voltage U above 1 kV AC up to and including 36 kV AC, and for the
related accessories.
Covered conductors consist of a conductor surrounded by a covering made of insulating material as
protection against accidental contacts with other covered conductors and with grounded parts such as tree
branches, etc. In comparison with insulated conductors, this covering has reduced properties, but is able
to withstand the phase-to-earth voltage temporarily.
Since covered conductors are unscreened, they are not touch-proof, i.e. they should be treated as bare
conductors with respect to electric shock.
This document does not cover aspects related to the installation of overhead lines such as determination
of clearances, spans, sags, etc.
1 Scope
This document contains the requirements for covered conductors with or without integrated longitudinal
water tightness and/or semi-conductive conductor screen for applications in overhead lines with rated
voltages U above 1 kV a.c. and not exceeding 36 kV a.c.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content consti
...