EN 50655-1:2017

Electric cables - Accessories - Material characterization - Part 1: Fingerprinting for resinous compounds

This European Standard 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 may 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

Diese Europäische 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, darf 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

La présente Norme européenne 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 de lien obligatoire 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 sur la santé et la sécurité sont données à l’Annexe A.

Električni kabli - Pribor - Značilnosti materialov - 1. del: Identifikacija materiala za smolne zmesi

Ta evropski standard 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 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 ter 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

• Status: Published
• Publication Date: 23-Nov-2017
• Withdrawal Date: 17-Sep-2020
• ICS: 29.035.20 - Plastics and rubber insulating materials
• Technical Committee: CLC/TC 20 - Electric cables
• Drafting Committee: CLC/TC 20 - Electric cables
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 24-Nov-2017
• Due Date: 05-Mar-2018
• Completion Date: 24-Nov-2017
• Ref Project: SIST EN 50655-1:2018 - Electric cables - Accessories - Material characterization - Part 1: Fingerprinting for resinous compounds

Relations

• Replaces: HD 631.1 S2:2007 - Electric cables - Accessories - Material characterisation - Part 1: Fingerprinting and type tests for resinous compounds
• Effective Date: 27-Jan-2015
• Replaced By: EN 50655-1:2023 - Electric cables - Accessories - Material characterization - Part 1: Fingerprinting for resinous compounds
• Effective Date: 30-Aug-2022

Overview

EN 50655-1:2017 is a European standard developed by the CLC Technical Committee 20, focusing on the material characterization of resinous compounds used in electric cable accessories. This standard defines test methods and requirements for fingerprinting solvent-free polymerizable, reacting resinous compounds intended for use in electrical insulation and mechanical protection of cable accessories for low and medium voltage applications up to 20.8/36 (42) kV.

Fingerprinting in this context refers to the process of establishing and confirming the unique chemical and physical properties of these materials to ensure quality, consistency, and safety during the manufacturing and operational lifecycle of cable accessories. The tests are stand-alone and can also be integrated with type testing of accessories.

The standard provides guidelines covering sampling, testing sequences, conditioning, and reporting, aligning with other European standards such as EN 50393 and HD 629 series. It also emphasizes compliance with health and safety aspects in handling resinous compounds.

Key Topics

• Scope and Application
  EN 50655-1 targets resinous compounds used for electrical insulation/protection in cable accessories for voltages up to 20.8/36 (42) kV, including distribution and power cables.

• Fingerprinting Definition and Purpose
  Fingerprinting tests establish baseline properties of resin materials and verify them over time, ensuring that compounds used in cable accessories maintain performance consistency.

• Material Sampling and Preparation

  • Samples must be taken from batches stored under prescribed conditions.
  • Testing can be performed as stand-alone or combined with accessory type tests.
  • Conditioning follows standard atmosphere specifications (EN ISO 291).

• Sequence of Testing
  Tests are conducted in three main stages:

  1. Individual resin and reactive components before mixing.
  2. Resinous compound after mixing (curing stage).
  3. Fully cured resinous compound (original).

• Key Test Methods and Properties

  • Viscosity measured according to EN ISO 2555, with acceptable deviations defined by viscosity level.
  • Pot life indicating workable time after mixing, tested per EN 60455-2.
  • Exothermic temperature rise during curing to monitor chemical behavior.
  • Density and hardness (Shore) of the cured compound as critical mechanical properties, tested following ISO standards.

• Test Reporting Requirements
  Reports must document compound identification, batch numbers, supplier details, test results, processing conditions, and safety data (MSDS, TDS).

• Health and Safety
  Annex A recommends the availability of Material Safety Data Sheets and compliance with EU and national regulations to ensure safe handling, transport, and disposal of resinous compounds.

Applications

• Low and Medium Voltage Cable Accessories
  The standard applies to accessories such as joints, terminations, and other fittings used in electrical distribution and power cables with nominal voltages up to 20.8/36 (42) kV.

• Quality Control and Consistency Assurance
  Manufacturers and suppliers use these fingerprinting tests to confirm resin batch consistency, helping reduce failure rates and improve cable accessory reliability.

• Material Verification during Production
  Enables suppliers and users to verify resin compound properties before use in cable accessory manufacturing processes, improving overall product safety and performance.

• Supporting Cable Accessory Type Testing
  While fingerprinting is standalone, it complements accessory type tests outlined in EN 50393 and HD 629 series standards, enhancing the thoroughness of accessory evaluation.

Related Standards

• EN 50393 – Test methods and requirements for cable accessories on distribution cables up to 1.2 kV.
• HD 629.1 and HD 629.2 – Test requirements for accessories on power cables up to 20.8/36 (42) kV with extruded or paper insulation.
• EN 60455 series – Specifications and test methods for resin-based reactive compounds used in electrical insulation.
• EN ISO 291 – Standard atmospheres for conditioning and testing plastics.
• EN ISO 868 and EN ISO 1183-1 – Methods for hardness and density determination of plastics.

Keywords

resinous compounds, electric cables, cable accessories, fingerprinting tests, polymerizable resins, electrical insulation, cable joint materials, low voltage cables, medium voltage cables, EN 50655-1, CLC standards, material characterization, curing resin testing, pot life, exothermic peak temperature, resin viscosity, hardness testing, density measurement, cable safety standards, resin batch verification.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kabel und isolierte Leitungen - Garnituren - Materialcharakterisierung - Teil 1: Fingerprintprüfungen für ReaktionsharzmassenCâbles électriques - Accessoires - Caractérisation des matériaux - Partie 1: Essais d'identification pour les composés résineuxElectric cables - Accessories - Material characterization - Part 1: Fingerprinting for resinous compounds29.060.20KabliCables29.035.20PDWHULDOLPlastics and rubber insulating materialsICS:Ta slovenski standard je istoveten z:EN 50655-1:2017SIST EN 50655-1:2018en01-januar-2018SIST EN 50655-1:2018SLOVENSKI
STANDARDSIST HD 631.1 S2:20081DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 50655-1
November 2017 ICS 29.035.20
Supersedes
HD 631.1 S2:2007English Version
Electric cables - Accessories - Material characterization - Part 1: Fingerprinting for resinous compounds
Câbles électriques - Accessoires - Caractérisation des matériaux - Partie 1: Essais d'identification pour les composés résineux
Kabel und isolierte Leitungen - Garnituren - Materialcharakterisierung - Teil 1: Fingerprintprüfungen für Reaktionsharzmassen This European Standard was approved by CENELEC on 2017-09-18. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, 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: Avenue Marnix 17,
B-1000 Brussels © 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50655-1:2017 ESIST EN 50655-1:2018

Health and safety . 9
Tables Table 1 — Fingerprinting tests — Test methods and requirements . 8
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