EN 50655-1:2023
(Main)Electric cables - Accessories - Material characterization - Part 1: Fingerprinting for resinous compounds
Electric cables - Accessories - Material characterization - Part 1: Fingerprinting for resinous compounds
This document specifies the test methods and requirements of tests for fingerprinting (as defined in 3.9) of solvent-free polymerizable, reacting resinous compound intended to be used for electrical insulation and/or mechanical protection in cable accessories covered by EN 50393, HD 629.1 and HD 629.2, for low and medium voltage up to 20,8/36 (42) kV. Fingerprinting testing of materials does not have a mandatory link to type testing of accessories. It is regarded as stand-alone tests, but it can be carried out in combination with the accessory type tests. NOTE Information on health and safety is given in Annex A.
Kabel und isolierte Leitungen - Garnituren - Materialcharakterisierung - Teil 1: Fingerprintprüfungen für Reaktionsharzmassen
Dieses Dokument Norm legt die Prüfverfahren und Anforderungen für Fingerprintprüfung (entsprechend 3.9), an lösemittelfreien aushärtbaren Reaktionsharzmassen, die als elektrische Isolierung und/oder mechanischer Schutz für Kabelgarnituren nach EN 50393, HD 629-1 und HD 629-2 fest, die für Nieder- und Mittelspannung bis 20,8/36 (42) kV eingesetzt werden. Fingerprintprüfung an Werkstoffen ist nicht zwingend mit Typprüfungen von Garnituren verbunden. Sie wird als eigenständige Prüfung betrachtet, kann aber auch in Kombination mit Typprüfungen von Garnituren durchgeführt werden. ANMERKUNG Informationen zu Gesundheit und Sicherheit enthält Anhang A.
Câbles électriques - Accessoires - Caractérisation des matériaux - Partie 1: Essais d'identification pour les composés résineux
Le présent document spécifie les méthodes et les exigences d’essai pour les essais d’identification (tels qu’ils sont définis en 3.9) des composés résineux réactifs polymérisables sans solvant destinés à être utilisés pour l’isolation électrique et/ou la protection mécanique dans les accessoires de câbles couverts par l'EN 50393, le HD 629.1 et le HD 629.2, pour la basse et la moyenne tension jusqu’à 20,8/36 (42) kV. Il n’existe pas obligatoirement de lien entre les essais d’identification des matériaux et les essais de type des accessoires. Ils sont considérés comme des essais indépendants, mais ils peuvent être réalisés conjointement avec les essais de type des accessoires. NOTE Des informations concernant la santé et la sécurité sont données à l'Annexe A.
Električni kabli - Pribor - Značilnosti materialov - 1. del: Identifikacija materiala za smolne zmesi
Ta dokument določa preskusne metode in zahteve preskusov za identifikacijo materiala (kot je opredeljeno v točki 3.9) za reagirajoče smolne zmesi, ki jih je mogoče polimerizirati, ne vsebujejo topil ter se predvidoma uporabljajo za električno izolacijo in/ali mehansko zaščito v kabelskih pripomočkih za uporabo v nizko- in srednjenapetostnih sistemih z napetostjo do 20,8/36 (42) kV, kot je opredeljeno v standardih EN 50393, HD 629.1 in HD 629.2.
Preskušanje materialov na podlagi identifikacije se ne povezuje nujno s tipskim preskušanjem pripomočkov. Obravnava se kot sklop samostojnih preskusov, vendar se lahko izvaja v kombinaciji s tipskimi preskusi pripomočkov.
OPOMBA: Podatki o varovanju zdravja in varnosti so podani v dodatku A.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2023
Električni kabli - Pribor - Značilnosti materialov - 1. del: Identifikacija materiala za
smolne zmesi
Electric cables - Accessories - Material characterization - Part 1: Fingerprinting for
resinous compounds
Kabel und isolierte Leitungen - Garnituren - Materialcharakterisierung - Teil 1:
Fingerprintprüfungen für Reaktionsharzmassen
Câbles électriques - Accessoires - Caractérisation des matériaux - Partie 1: Essais
d'identification pour les composés résineux
Ta slovenski standard je istoveten z: EN 50655-1:2023
ICS:
29.035.20 Plastični in gumeni izolacijski Plastics and rubber insulating
materiali materials
29.060.20 Kabli Cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50655-1
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2023
ICS 29.035.20 Supersedes EN 50655-1:2017
English Version
Electric cables - Accessories - Material characterization - Part 1:
Fingerprinting for resinous compounds
Câbles électriques - Accessoires - Caractérisation des Kabel und isolierte Leitungen - Garnituren -
matériaux - Partie 1: Essais d'identification pour les Materialcharakterisierung - Teil 1: Fingerprintprüfungen für
composés résineux Reaktionsharzmassen
This European Standard was approved by CENELEC on 2023-10-16. 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 50655-1:2023 E
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Fingerprinting . 7
4.1 General . 7
4.2 Sampling . 7
4.3 Preparation and conditioning . 8
4.4 Sequence of tests . 8
4.5 Test report . 8
Annex A (informative) Health and safety . 13
Bibliography . 14
Tables
Table 1 — Fingerprinting tests — Test methods and requirements for Polyurethane resins . 9
Table 2 — Fingerprinting tests — Test methods and requirements for Polybutadiene resins 10
Table 3 — Fingerprinting tests — Test methods and requirements for Epoxy resins . 11
Table 4 — Fingerprinting tests — Test methods and requirements for Silicone resins . 12
European foreword
This document (EN 50655-1:2023) has been prepared by CLC/TC 20 “Electric cables”.
The following dates are fixed:
– latest date by which this document has (dop) 2024–10–16
to be implemented at national level by
publication of an identical national
standard or by endorsement
– latest date by which the national (dow) 2026–10–16
standards conflicting with this document
have to be withdrawn
This document supersedes EN 50655-1:2017.
a) Description of sample preparation (4.3.2);
b) Introduction of separate tables for Polyurethane, Polybutadiene, Epoxy and Silicone resins for
fingerprinting tests;
c) Detailed definition of test parameters, e.g. determination of the spindle for the viscosity
measurement, valid measurement range for Shore hardness;
d) Revision of max. acceptable deviation (Tables 1-4).
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.
EN 50655 series consists of the following:
– EN 50655-1, Electric cables - Accessories - Material characterization - Part 1: Fingerprinting for
resinous compounds;
– EN 50655-2, Electric cables - Accessories - Material characterization - Part 2: Fingerprinting for heat
shrinkable components for low and medium voltage applications up to 20,8/36 (42) kV;
– EN 50655-3, Electric cables - Accessories - Material characterization - Part 3: Fingerprinting for cold
shrinkable components for low and medium voltage applications up to 20,8/36 (42) kV.
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
It has been assumed in the preparation of this document that the execution of its provisions will be entrusted
to appropriately qualified and experienced people, for whose use it has been produced.
WARNING This European Standard calls for the use of substances and/or procedures that may be
injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not
absolve the user from legal obligations relating to health and safety at any stage.
1 Scope
This document specifies the test methods and requirements of tests for fingerprinting (as defined in 3.9) of
solvent-free polymerizable, reacting resinous compound intended to be used for electrical insulation and/or
mechanical protection in cable accessories covered by EN 50393, HD 629.1 and HD 629.2, for low and
medium voltage up to 20,8/36 (42) kV.
Fingerprinting testing of materials does not have a mandatory link to type testing of accessories. It is
regarded as stand-alone tests, but it can be carried out in combination with the accessory type tests.
NOTE Information on health and safety is given in Annex A.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 60455-1, Resin based reactive compounds used for electrical insulation — Part 1: Definitions and
general requirements (IEC 60455-1)
EN 60455-2, Resin based reactive compounds used for electrical insulation — Part 2: Methods of test
(IEC 60455-2)
EN ISO 291, Plastics — Standard atmospheres for conditioning and testing (ISO 291)
EN ISO 868, Plastics and ebonite — Determination of indentation hardness by means of a durometer
(Shore hardness) (ISO 868)
EN ISO 1183-1, Plastics — Methods for determining the density of non-cellular plastics — Part 1:
Immersion method, liquid pycnometer method and titration method (ISO 1183-1)
EN ISO 2555, Plastics — Resins in the liquid state or as emulsions or dispersions — Determination of
apparent viscosity using a single cylinder type rotational viscometer method (ISO 2555)
IEC 60050-461, International Electrotechnical Vocabulary — Part 461: Electric cables
ISO 2137, Petroleum products and lubricants — Determination of cone penetration of lubricating greases
and petrolatum
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-461 and EN 60455-1 and
the following apply.
3.1
resinous compound
compound for cable accessories made by the mixture of at least two components (resin and reactive
component)
Note 1 to entry: For some applications, additional components such as filler may be needed.
3.2
resin
liquid organic material that cures as a result of polymerization by means of reactive component
(e.g. hardener or accelerator) without releasing additional volatile products
3.3
reactive component
substance or compound of substances which causes, when added to resin, hardening of resin by cross-
linking of molecules or accelerates hardening of resin
3.4
pot life
time available to mix the components of the resinous compound together and pour or inject the compound
into the cable accessory, such that it continues to flow smoothly and cohesively
3.5
“use before” date
shelf-life
date until which a resinous compound, when stored under specified conditions of temperature and humidity,
retains specified properties
3.6
density
ratio of mass to volume
3.7
exotherm peak temperature
highest temperature that is reached during the hardening process of a defined volume of a resinous
compound after mixing at a defined temperature
3.8
hardness
measurement of the resistance of a material to indentation by means of durometers or by penetration of a
needle (soft material)
3.9
fingerprinting
tests made to establish and subsequently confirm the properties of materials or components used in cable
accessories
3.10
type test
tests made on materials or components of a cable accessory in order to demonstrate satisfactory
performance characteristics to meet the intended application
3.11
deviation
variation of a property between the initial test values and the test values measured on new samples at a
later date
3.12
initial test
tests made to establish the properties of materials or components used in cable accessories
4 Fingerprinting
4.1 General
Tests shall be carried out based on the category of the resinous compound.
4.2 Sampling
Samples for fingerprinting shall be taken from material stored under conditions prescribed by the supplier.
The fingerprinting test of resinous compound shall be carried out
a) either as a stand-alone test. Samples used for the initial test shall be taken from material available as
agreed between supplier and user,
b) or in combination with an accessory type test. Samples used for the initial test shall be taken from the
same batch as those used in the accessory type test. In the event that no material from the same batch
is available, the samples used for the initial test shall be taken from material available as agreed
between supplier and user.
4.3 Preparation and conditioning
4.3.1 General
For all tests, unless otherwise specified, conditioning shall be carried out in accordance with EN ISO 291
using atmosphere 23/50.
4.3.2 Individual components prior to mixing
Components (resin and reactive component) shall be individually prepared, conditioned and tested in
accordance with the relevant test method as specified in stage 1 of the sequence of tests given in Tables 1
to 4. Filler, when supplied as a separate item, shall not be tested as a component.
If the components are delivered in double chamber bags or bottles, each chamber or bottle shall be
completely emptied. The components shall be homogenized separately in a beaker for 3 min with a spatula
(except for the hardener of Polyurethane resins). If the components are delivered in cans, they also shall
be homogenized for 3 min with a spatula (except for the hardener of Polyurethane resins).
4.3.3 Resin just after mixing (curing stage)
Mixing of the components shall be done in a beaker with a spatula with a mixing time according to the
supplier’s instructions and then tested as specified in stage 2 of the sequence of tests given in Tables 1 to
4. In the case no information regarding mixing is given, mixing time shall be 3 min.
4.3.4 Cured resinous compound (original)
Compounds shall be prepared according to supplier’s instructions and cured for 24 h at room temperature
unless otherwise specified in the test method. The specimens shall be post-cured at (80 ± 2) °C for 24 h
unless otherwise specified in the test method and then cooled in a desiccator for 24 h at room temperature.
Tests shall then be carried out as specified in stage 3 of the sequence of tests given in Tables 1 to 4.
4.4 Sequence of tests
Sequences of tests shall be carried out on the resinous compound in the following three stages, in
accorda
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