BS EN 60455-3-8:2013 BSI Standards Publication Resin based reactive compounds used for electrical insulation Part 3: Specifications for individual materials — Sheet 8: Resins for cable accessories BRITISH STANDARD BS EN 60455-3-8:2013 National foreword This British Standard is the UK implementation of EN 60455-3-8:2013 It is identical to IEC 60455-3-8:2013 The UK participation in its preparation was entrusted by Technical Committee GEL/15, Solid electrical insulating materials, to Subcommittee GEL/15/10, Combined flexible materials A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application © The British Standards Institution 2013 Published by BSI Standards Limited 2013 ISBN 978 580 78648 ICS 29.035.01 Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2013 Amendments/corrigenda issued since publication Date Text affected BS EN 60455-3-8:2013 EN 60455-3-8 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM July 2013 ICS 29.035.01 English version Resin based reactive compounds used for electrical insulation Part 3: Specifications for individual materials Sheet 8: Resins for cable accessories (IEC 60455-3-8:2013) Composés réactifs base de résines utilisés comme isolants électriques Partie 3: Spécifications pour matériaux particuliers Feuille 8: Résines pour accessoires de câble (CEI 60455-3-8:2013) Reaktionsharzmassen für die Elektroisolierung – Teil 3: Anforderungen an einzelne Werkstoffe – Blatt 8: Reaktionsharzmassen für Kabelgarnituren (IEC 60455-3-8:2013) This European Standard was approved by CENELEC on 2013-06-03 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels © 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 60455-3-8:2013 E BS EN 60455-3-8:2013 EN 60455-3-8:2013 -2- Foreword The text of document 15/701/FDIS, future edition of IEC 60455-3-8, prepared by IEC/TC 15 "Solid electrical insulating materials", was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60455-3-8:2013 The following dates are fixed: • • latest date by which the document has to be implemented at national level by national publication of an identical standard or by endorsement latest date by which the national standards conflicting with the document have to be withdrawn (dop) 2014-03-03 (dow) 2016-06-03 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent rights Endorsement notice The text of the International Standard IEC 60455-3-8:2013 was approved by CENELEC as a European Standard without any modification In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60455-1 NOTE Harmonized as EN 60455-1 IEC 60455-3 series NOTE Harmonized in EN 60455-3 series (not modified) IEC 61234-2 NOTE Harmonized as EN 61234-2 ISO 291 NOTE Harmonized as EN ISO 291 ISO 2592 NOTE Harmonized as EN ISO 2592 ISO 3521 NOTE Harmonized as EN ISO 3521 BS EN 60455-3-8:2013 -3- EN 60455-3-8:2013 Annex ZA (normative) Normative references to international publications with their corresponding European publications 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 NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies Publication Year Title EN/HD Year 1) IEC 60093 - Methods of test for volume resistivity and HD 429 S1 surface resistivity of solid electrical insulating materials IEC 60212 - Standard conditions for use prior to and duringEN 60212 the testing of solid electrical insulating materials - IEC 60243-1 - Electrical strength of insulating materials Test methods Part 1: Tests at power frequencies - IEC 60250 - Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths - IEC 60455-2 - Resin based reactive compounds used for electrical insulation Part 2: Methods of test EN 60455-2 - ISO 179 Series Plastics - Determination of Charpy impact properties EN ISO 179 Series ISO 527 Series Plastics - Determination of tensile properties EN ISO 527 Series ISO 868 - Plastics and ebonite - Determination of indentation hardness by means of a durometer (Shore hardness) EN ISO 868 - ISO 1183-1 - Plastics - Methods for determining the density EN ISO 1183-1 of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titration method - ISO 2555 - Plastics - Resins in the liquid state or as emulsions or dispersions - Determination of apparent viscosity by the Brookfield test method EN ISO 2555 - ISO 4895 - Plastics - Liquid epoxy resins - Determination EN ISO 4895 of tendency to crystallize - 1) HD 429 S1 is superseded by EN 62631-1:2011, which is based on IEC 62631-1:2011 EN 60243-1 - –2– BS EN 60455-3-8:2013 60455-3-8 © IEC:2013 CONTENTS INTRODUCTION Scope Normative references Terms and definitions Designation Type testing 5.1 5.2 5.3 General Sampling Preparation and conditioning 5.3.1 General 5.3.2 Individual components prior to mixing 5.3.3 Resin just after mixing (curing stage) 5.3.4 Cured resin (original) 5.3.5 Cured resin after thermal ageing (dry and wet) 5.4 Sequence of tests 5.5 Test report Test methods Information on supply, packaging, marking and labelling 12 7.1 7.2 Packaging 12 Marking and labelling 12 7.2.1 General 12 7.2.2 Components 12 7.2.3 Accessory kit 12 Bibliography 13 Table – Categories of resins Table – Type tests: test methods and requirements 10 BS EN 60455-3-8:2013 60455-3-8 © IEC:2013 –5– INTRODUCTION This part of IEC 60455-3-8 is one of a series which deals with specifications for reactive compounds and their components for electrical insulation This series consist of three parts: Part 1: Definitions and general requirements (IEC 60455-1); Part 2: Methods of test (IEC 60455-2); Part 3: Specifications for individual materials (IEC 60455-3) IEC 60455-3-8 consists of one of the sheets comprising Part as follows: Sheet 8: Resins for cable accessories –6– BS EN 60455-3-8:2013 60455-3-8 © IEC:2013 RESIN BASED REACTIVE COMPOUNDS USED FOR ELECTRICAL INSULATION – Part 3: Specifications for individual materials Sheet 8: Resins for cable accessories Scope This sheet of IEC 60455-3 gives the requirements for resins for power cable accessories which conform to this specification and meet established levels of performance However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate performance in that application and not on this specification alone 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 IEC 60093, Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials IEC 60212, Standard conditions for use prior to and during the testing of solid electrical insulating materials IEC 60243-1, Electric strength of insulating materials – Test methods – Part 1: Tests at power frequencies IEC 60250, Recommended methods for the determination of the permittivity and dielectric dissipation factor of electrical insulating materials at power, audio and radio frequencies including metre wavelengths IEC 60455-2, Resin based reactive compounds used for electrical insulation – Part 2: Methods of test ISO 179 (all parts), Plastics – Determination of Charpy impact properties ISO 527 (all parts), Plastics – Determination of tensile properties ISO 868, Plastics and ebonite – Determination of indentation hardness by means of a durometer (Shore hardness) ISO 1183-1, Plastics – Methods for determining the density of non-cellular plastics – Part 1: Immersion method, liquid pyknometer method and titration method ISO 2555, Plastics – Resins in the liquid state or as emulsions or dispersions – Determination of apparent viscosity by the Brookfield Test method ————————— Third edition to be published BS EN 60455-3-8:2013 60455-3-8 © IEC:2013 –7– ISO 4895, Plastics – Liquid epoxy resins – Determination of tendency to crystallize Terms and definitions For the purposes of this document, the following terms and definitions apply 3.1 tendency to crystallization measurement of the ability of epoxy base resin not to change from a liquid to a solid state at a certain temperature close to water freezing point for a fixed time 3.2 type tests tests made on materials or components of a cable accessory in order to demonstrate satisfactory performance characteristics to meet the intended application 3.3 outer protection cured resinous compound to protect the connections from damage by external mechanical forces Designation Resins for cable accessories are classified according to their application in categories as follows: Table – Categories of resins a Voltage Class Function Characteristic Low Voltage (L) Outer Protection (OP) Medium Voltage (M) Insulation (I) Cures in presence of water a (W) Low foaming during curing when in contact with water as described in the subclause dealing with curing under water in IEC 60455-2 A resin is identified by a combination of categories For example: Low voltage compound for outer protection: L-OP; Low voltage compound for insulation, curing in presence of water: L-I-W; Low voltage compound for insulation and mechanical protection: L-OP-I Tests for type testing are carried out in accordance with each of the resin categories Low voltage: 0,6/1,0 (1,2) kV Medium voltage: 20,8/36 (42) kV 5.1 Type testing General Tests shall be carried out based on the category of the resins as defined in Table These tests are of such a nature that, once successfully completed, they need not to be repeated unless changes are made in the material, component formulation or manufacturing process, which might change the performance characteristics –8– 5.2 BS EN 60455-3-8:2013 60455-3-8 © IEC:2013 Sampling Samples for type testing shall be taken from material stored under conditions prescribed by the manufacturer The type testing of resins shall be carried out either: – as a stand-alone test Samples used for the type test shall be taken from material available as agreed between supplier and user – or in combination with an accessory type test Samples used for the resins type test shall be taken from the same batch as used in the accessory type test In the event that no material from the same batch is available, then the samples used for the resins type test shall be taken from material available as agreed between supplier and user 5.3 Preparation and conditioning 5.3.1 General For all tests, unless otherwise specified, conditioning shall be made in accordance with IEC 60212 using standard atmosphere B 5.3.2 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 of the sequence of tests given in Table Filler, when supplied as a separate item, shall not be tested as a component 5.3.3 Resin just after mixing (curing stage) Compounds shall be prepared and mixed according to supplier’s instructions and tested as specified in stage of the sequence of tests specified in Table 5.3.4 Cured resin (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 referred to in stage of the sequence of tests given in Table 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 NOTE If degassing is needed, it will be indicated in the relevant test method and the conditions for the degassing will also be indicated 5.3.5 Cured resin after thermal ageing (dry and wet) Cured resin shall be prepared according to supplier’s instructions and cured for 24 h at room temperature unless otherwise specified in the test method referred to in stage of the sequence of tests given in Table 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 NOTE If degassing is needed, it will be indicated in the relevant test method and the conditions for the degassing will also be indicated 5.4 Sequence of tests Tests shall be carried out on the resin in the following four stages, in accordance with Table 2: Stage 1: Reactive components prior to mixing; Stage 2: Resin just after mixing; Stage 3: Cured resin (original); BS EN 60455-3-8:2013 60455-3-8 © IEC:2013 Stage 4: 5.5 –9– Cured resin after heat exposure (dry and wet) Test report The test report shall include the following data: 1) resin category and identification; 2) lot number or identification; 3) marking and labelling to Material safety data sheet (MSDS); 4) test results; 5) major test parameters, including conditioning and calibration, if any; 6) processing conditions used to mix the compound; 7) copy of Technical data sheet (TDS) and MSDS Test methods International test methods are specified within this standard where available; for those tests where there is no international test method available or the test method needs some adaptation of conditions, the method or specific conditions are specified in IEC 60455-2 For special applications, this water temperature in Table 2, 4-2 (Wet heat resistance), may be insufficient to ensure the satisfactory performance of the resinous compound In such cases, upon agreement between manufacturer and user, the compound shall be tested using an increased temperature of 90 °C The chosen temperature shall be recorded in the test report Compliance at 90 °C also includes compliance at 70 °C Property Tendency to crystallization a Hardness (Shore) Tensile strength Elongation at break Dissipation factor at room temperature Dielectric constant at room temperature a Impact strength (without notch) 10 11 12 According IEC 60212 atmosphere B Volume resistivity at room temperature Density a a Curing in presence of water, physical structure Curing in presence of water, gas volume Pot life (0,3 l at 40 °C) Pot life (0,3 l at °C) Stage – Cured resins (original) Stage – Resins just after mixing (curing stage) Viscosity at °C Stage – Reactive components prior to mixing Number IEC 60093 IEC 60250 IEC 60250 ISO 527 ISO 527 ISO 868 ISO 179 ISO 1183-1 IEC 60455-2 IEC 60455-2 ISO 4895 ISO 2555 Test method Ω cm % MPa ≥6 kJ/m MI: ≥ × 10 13 LI: ≥ × 10 11 MI: relative permittivity ≤ MI: dissipation factor ≤ 0,1 Record value Record value Record value Record value No blisters or cracks, small amount of individual bubbles or inclusions acceptable < 10 ≥5 < 75 No turbidity after days ≤ 50 Requirement g/cm ml min - Pas Units Table – Type tests: test methods and requirements Using conductive silver varnish as electrode material Using 500 V/mm at 50 Hz Using conductive silver varnish as electrode material Using 500 V/mm at 50 Hz Using conductive silver varnish as electrode material Using 500 V/mm at 50 Hz No break is also acceptable Density should be > 1,05 g/cm Include picture of cut resin surface with scale in report For PUR resin type W only Epoxy resin part only Remarks – 10 – BS EN 60455-3-8:2013 60455-3-8 © IEC:2013 Property b Impact strength (without notch) 14 Tensile strength (retention/original) Elongation at break (retention/original) Dielectric strength (resin type LI) 16 17 18 See also Clause regarding test at 90 °C Dielectric strength (resin type MI) Hardness (retention/original) 15 Wet heat resistance: 28 days at 70 °C Mass loss 4-2 Test method b IEC 60243-1 ISO 527 ISO 527 ISO 868 in water – IEC 60455-2 ISO 179 IEC 60455-2 % % ≥5 ≥2 ≥ 65 ≥ 65 ≥ 80 ≥4 % ≤5 kJ/m Requirement % Units kV/mm Dry heat resistance: 28 days at 120 °C (vented oven ) – IEC 60455-2 13 4-1 Stage – Cured resins after heat exposure Number For resin type I only No break is also acceptable Remarks BS EN 60455-3-8:2013 60455-3-8 © IEC:2013 – 11 – – 12 – BS EN 60455-3-8:2013 60455-3-8 © IEC:2013 Information on supply, packaging, marking and labelling 7.1 Packaging Packaging shall be sufficient to ensure that any stated shelf life of the reactive components is maintained when stored under specified conditions of temperature and humidity 7.2 7.2.1 Marking and labelling General The following information, in the relevant national language(s), shall be printed or labelled on the resin components packaging and on the accessory kit 7.2.2 Components Each individual part of the resin or the reactive compounds if packed separately shall be printed or labelled on its packaging with: 1) supplier’s name or logo; 2) part number or identification; 3) lot number or production date; 4) specified storage conditions, if any; 5) “Use before date” (shelf life); 6) health and safety marking according to relevant EU or national legislation; 7) mixing and application instructions; 8) resin categories 7.2.3 Accessory kit Each accessory kit containing a reactive component shall be printed or labelled on its packaging and shall at least indicate: 1) the specified storage conditions, if any; 2) the “Use before date” (shelf life); 3) the health and safety marking according to relevant EU or national legislation BS EN 60455-3-8:2013 60455-3-8 © IEC:2013 – 13 – Bibliography IEC 60455-1, Resin based reactive compounds used for electrical insulation – Part 1: Definitions and general requirements IEC 60455-3 (all sheets), Resin based reactive compounds used for electrical insulation – Part 3: Specifications for individual materials IEC 61234-2, Electrical insulating materials – Methods of test for the hydrolytic stability – Part 2: Moulded thermosets ISO 291, Plastics – Standard atmospheres for conditioning and testing ISO 2592, Determination of flash and fire points – Cleveland open cup method ISO 3521, Plastics – Unsaturated polyester and epoxy resins – Determination of overall volume shrinkage ISO 7056, Plastics laboratory ware – Beakers EN 50393, Test methods and requirements for accessories for use on distribution cables of rated voltage 0,6/1,0 (1,2) kV HD 629.1, Test requirements on accessories for use on power cables of rated voltage from 3,6/6(7,2) kV up to 20,8/36(42) kV – Part 1: Cables with extruded insulation HD 629.2, Test requirements on accessories for use on power cables of rated voltage from 3,6/6(7,2) kV up to 20,8/36(42) kV – Part 2: Cables with impregnated paper insulation _ This page deliberately left blank This page deliberately left blank NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards Institution (BSI) BSI is the national body responsible for preparing British Standards and other standards-related publications, information and services BSI is 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