BRITISH STANDARD BS EN 60702 2 2002 IEC 60702 2 2002 Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V — Part 2 Terminations The European Standard EN 60702 2 200[.]
BRITISH STANDARD BS EN EN 60702-2:2002 60702-2:2002 +A1:2015 IEC IEC 60702-2:2002 60702-2:2002 +A1:2015 Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V — Part 2: Terminations The European Standard EN 60702-2:2002 has the status of a British Standard ICS 29.060.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 60702-2:2002+A1:2015 National foreword This British Standard is the UK implementation of EN 60702-2:2002+A1:2015 It is identical to IEC 60702-2:2002, incorporating amendment 1:2015 It supersedes BS EN 60702-2:2002 which will be withdrawn on 19 February 2018 The start and finish of text introduced or altered by amendment is indicated in the text by tags Tags indicating changes to IEC text carry the number of the IEC amendment For example, text altered by IEC amendment is indicated by The UK participation in its preparation was entrusted by Technical Committee GEL/20, Electric cables, to Subcommittee GEL/20/17, Electric Cables – Low voltage A list of organizations represented on this subcommittee can be obtained on request to its secretary The publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application 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 10 April 2002 © The British Standards Institution 2015 Published by BSI Standards Limited 2015 ISBN 978 580 80955 Amendments/corrigenda issued since publication Date Comments 31 March 2015 Implementation of IEC amendment A1:2015 with CENELEC endorsement A1:2015 Annex ZA amended EUROPEAN STANDARD EN 60702-2:2002+A1 60702-2 NORME EUROPÉENNE EUROPÄISCHE NORM March 2002 February 2015 ICS 29.060.20 Supersedes HD 586.2 S1:1994 English version Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V Part 2: Terminations (IEC 60702-2:2002) Câbles isolant minéral et leurs terminaisons de tension assignée ne dépassant pas 750 V Partie 2: Terminaisons (CEI 60702-2:2002) Mineralisolierte Leitungen mit einer Bemessungsspannung bis 750 V Teil 2: Endverschlüsse (IEC 60702-2:2002) This European Standard was approved by CENELEC on 2002-03-01 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 Central Secretariat 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 Central Secretariat has the same status as the official versions CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels © 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members Ref No EN 60702-2:2002 E Page BS EN 60702-2:2002+A1:2015 EN 60702−2:2002 EN 60702-2:2002+A1:2015 Foreword The text of document 20/491/FDIS, future edition of IEC 60702-2, prepared by IEC TC 20, Electric cables, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60702-2 on 2002-03-01 This European Standard supersedes HD 586.2 S1:1994 and its corrigendum November 1995 The following dates were fixed: – latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2002-12-01 – latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2005-03-01 Annexes designated "normative" are part of the body of the standard In this standard, annex ZA is normative Annex ZA has been added by CENELEC EN 60702-2:2002/A1:2015 Endorsement notice -2- The text of the International Standard IEC 60702-2:2002 was approved by CENELEC as a European Standard without any modification Foreword Foreword to amendment A1 The text of document 20/1529/FDIS, future edition of IEC 60702-2/A1, prepared by IEC TC 20, Electric cables" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 607022:2002/A1:2015 The following dates are fixed: • • latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement latest date by which the national standards conflicting with the document have to be withdrawn (dop) 2015-11-19 (dow) 2018-02-19 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 This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC) Endorsement notice The text of the International Standard IEC 60702-2:2002/A1:2015 was approved by CENELEC as a European Standard without any modification © BSI 10 April 2002 -3- BS EN 60702-2:2002+A1:2015 EN EN 60702-2:2002+A1:2015 60702-2:2002/A1:2015 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 NOTE Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu Replace the existing list of references with the following references: Publication Year Title EN/HD Year IEC 60079-0 (mod) - Explosive atmospheres -Part 0: Equipment - General requirements EN 60079-0 - IEC 60364-5-54 - Low-voltage electrical installations -Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors HD 60364-5-54 - IEC 60423 - Conduit systems for cable management EN 60423 Outside diameters of conduits for electrical installations and threads for conduits and fittings - IEC 60702-1 - Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V -Part 1: Cables - EN 60702-1 BS EN 60702-2:2002+A1:2015 IEC 60702-2:2002+A1:2015 60702-2 © IEC:2002 Page EN 60702−2:2002 –3– CONTENTS Scope 5 Normative references Definitions 45 Marking 5 4.1 Marking of packages 4.2 Marking of seals and glands Construction 5.1 Seals 5.1.1 Material 5.1.2 Connection 5.1.3 Explosive atmospheres 5.1.4 Corrosion resistance 5.1.5 Test requirements 5.1.6 Operating temperature 5.2 Glands 5.2.1 Material 5.2.2 Thread form 5.2.3 Entry thread length 7 5.2.4 Explosive atmospheres Type tests 6.1 6.2 General Seals 6.2.1 Voltage test 6.2.2 Insulation resistance test 6.2.3 Insulation integrity test 6.2.4 Maximum operating temperature test 6.2.5 Temperature cycle test 6.2.6 Tensile test 6.3 Glands 6.3.1 Tensile test 6.4 Electrical earth continuity test 6.4.1 General 6.4.2 Glands or seals with integral protective conductors or other protective conductor attachments 10 6.4.3 Glands intended to provide earth continuity without integral protective conductors 10 Annex ZA (normative) Normative references to international publications with their Bibliography � ����������������������������������������������������������������������������������������������������������������������� 11 corresponding European publications 10 © BSI 10 April 2002 Full information on the voting for the approval of this amendment can be found in the report on voting indicated in the above table Page BSand EN the 60702-2:2002+A1:2015 The committee has decided that the contents of this amendment base publication will EN 60702−2:2002 IEC remain unchanged until the stability date indicated on the60702-2:2002+A1:2015 IEC website under 60702-2 © IEC:2002 –the specific publication At this date, the "http://webstore.iec.ch" in the data related– to publication will be • reconfirmed, • withdrawn, • replaced by a revised edition, or • amended MINERAL INSULATED CABLES AND THEIR TERMINATIONS WITH A RATED VOLTAGE NOT EXCEEDING 750 V – Part 2: Terminations _ Scope This standard specifies requirements for terminations for use with mineral insulated cables Replace thewith titlethe and content of Clause by the following: complying requirements of IEC 260702-1 Normative Normative references references whole or in are normatively referenced in this document and The following following documents, referenced in documents arepart, indispensable for the application of this document are for its application dated references, only the edition cited applies For For indispensable dated references, only the editionFor cited applies For undated references, the latest edition undated references, the (including latest edition of the referenced of the referenced document any amendments) applies document (including any amendments) applies IEC 60079-0:1998, Electrical apparatus for explosive gas atmospheres – Part 0: General IEC 60079-0, Explosive atmospheres – Part 0: Equipment – General requirements requirements IEC 60364-5-54, Low-voltage electrical installations – Part 5-54:5: Selection 60364-5-54:1980, Electrical installations of buildings – Part Selection and and erection erection of electrical equipment – Earthing arrangements and protective conductors Chapter 54: Earthing arrangements and protective conductors IEC 60423, ConduitConduits systemsfor for electrical cable management Outside diameters diameters of of conduits for 60423:1993, purposes – Outside electrical installations and threads for conduits and fittings IEC 60702-1, Mineral insulated cables and and their terminations with 60702-1:2002, Mineral insulated cables their terminations witha arated rated voltage voltage not exceeding 750 V – Part 1: Cables Cables 6.2.3 Insulation integrity test Definitions Replace, in 6.2.3, first paragraph, the words "environmental tests" by "tests" For the purpose of this part of IEC 60702, the following definitions apply 3.1 termination complete end fitting for a mineral insulated cable, normally comprising a seal and a gland or a composite seal/gland device, but excluding the locknut and any associated junction box or accessory 3.2 seal part of a termination designed to seal the end of the cable against entry of moisture The design must be such as to provide insulation between conductors and between conductors and sheath and provide conductor insulation external to the seal It may also have a means of providing a protective conductor © BSI 10 April 2002 BS EN 60702-2:2002+A1:2015 IEC 60702-2:2002+A1:2015 60702-2 © IEC:2002 Page EN 60702−2:2002 –5– 3.3 gland part of a termination designed to secure the cable in a cable entry It may or may not be used to ensure earth continuity depending upon the type of construction and material used 3.4 type tests (symbol T) tests made before supplying, on a general commercial basis, a type of termination covered by this standard, in order to demonstrate satisfactory performance characteristics to meet the intended application These tests are such that, after they have been made, they need not be repeated unless changes are made in the termination material, design or manufacturing process which might change the performance characteristics Marking 4.1 Marking of packages Packages in which terminations or parts of terminations are supplied shall be marked with the following particulars: a) the number of this standard; b) a means of identifying the manufacturer or supplier; c) the maximum and minimum operating temperature of the seals; d) a mark or means of identifying the cables for which it is intended; e) whether a protective conductor is provided; f) gland thread form and size 4.2 Marking of seals and glands Seals and glands shall be marked with a means of identifying the cable or cables for which they are intended In addition, glands certified for use in hazardous areas shall be marked in accordance with IEC 60079-0 Construction 5.1 5.1.1 Seals Material A seal shall consist of a moisture-resistant sealing material contained, if necessary, within a suitable enclosure, and shall provide electrical insulation for the cable conductors 5.1.2 Connection A protective conductor may be connected to a metallic sealing enclosure by any suitable method (e.g welding, brazing, crimping or soldering), or it may be connected directly on the metal sheath by any suitable attachment (e.g clip or clamp) The size of the protective conductor shall be in accordance with IEC 60364-5-54, and the attachment shall meet the electrical continuity test requirement specified in 6.4.1 © BSI 10 April 2002 Page EN 60702−2:2002 60702-2 © IEC:2002 5.1.3 –6– BS EN 60702-2:2002+A1:2015 IEC 60702-2:2002+A1:2015 Explosive atmospheres A seal for use in potentially explosive atmospheres shall, in addition to complying with the requirements of this standard, also satisfy the appropriate requirements specified in IEC 60079-0 5.1.4 Corrosion resistance A seal or enclosure shall be made from material which will ensure freedom from corrosion arising from electrolytic action 5.1.5 Test requirements The material used in the seal shall be such that the completed seal is capable of meeting the test requirements specified in this standard 5.1.6 Operating temperature The conductor insulation shall be suitable for the range of operating temperatures stated for the seal by the manufacturer 5.2 Glands 5.2.1 Material A gland may be of any suitable material providing that it ensures freedom from corrosion arising from electrolytic action and meets the test requirements specified in this standard 5.2.2 Thread form The gland entry threads shall have a preferred thread form in accordance with those specified for conduit in IEC 60423 Other threads are permitted provided that the gland complies with all the other requirements of this standard 5.2.3 Entry thread length The length of gland entry threads shall be not less than mm 5.2.4 Explosive atmospheres Glands for use in potentially explosive atmospheres shall, in addition to complying with the requirements of this standard, also satisfy the appropriate requirements specified in IEC 60079-0 6.1 Type tests General The tests in this standard are type tests intended to establish termination design characteristics Unless otherwise specified, all tests shall be carried out at an ambient temperature of (20 10) °C The test voltage shall be either a.c of approximately sinusoidal waveform at a frequency in the range 49 Hz to 61 Hz, or d.c equal to the peak value of the alternating voltage, and shall be applied gradually © BSI 10 April 2002 Page BS EN 60702-2:2002+A1:2015 60702-2 © IEC:2002 IEC 60702-2:2002+A1:2015 60702-2 © IEC:2002 –7– –7– Page EN 60702−2:2002 EN 60702−2:2002 The seals and glands to be tested shall be fitted in accordance with the manufacturer's recommendations to bothtoends of (300 shall 50) be mmfitted lengths cable complying withmanufacturer's IEC 60702-1, The seals and glands be tested in of accordance with the of a size and rated voltage to the under test Each shall be recommendations to both endsappropriate of (300 50) mm seals/glands lengths of cable complying with seal IEC 60702-1, fitted as soon as possible the end toof the theseals/glands cable has been to seal minimize of a size and rated voltageafter appropriate underprepared, test Each shall the be ingress moisture fitted asofsoon as possible after the end of the cable has been prepared, to minimize the ingress of moisture New seals/glands shall be taken for each electrical and mechanical test New seals/glands shall be taken for each electrical and mechanical test 6.2 Seals 6.2 Seals 6.2.1 Voltage test 6.2.1 Voltage test The sample shall withstand the following test voltage applied between each conductor and every other conductor, conductors together and sheath, The sample shall withstandand thebetween followingall test voltage bunched applied between eachthe conductor for 5every min: other conductor, and between all conductors bunched together and the sheath, and for min: – 000 V r.m.s for seals for 500 V cable; – – 2 000 500 V V r.m.s r.m.s for for seals seals for for 500 750 V V cable; cable – 500 V r.m.s for seals for 750 V cable 6.2.2 Insulation resistance test 6.2.2 Insulation resistance test The insulation resistance measured with a d.c voltage between 80 V and 500 V applied between each conductor every other andbetween between80 each conductor the The insulation resistance and measured with aconductor, d.c voltage V and 500 V and applied sheath shall be not less than 100 M between each conductor and every other conductor, and between each conductor and the sheath shall be not less than 100 M 6.2.3 Insulation integrity test 6.2.3 Insulation integrity test This test shall be carried out, in addition to the insulation resistance test after the environmental in out, 6.2.4 6.2.5, asthe an indirectresistance check thattest the insulation has not testtests shallspecified be carried carried out,ininand addition insulation resistance test after This test shall be addition totothe insulation after thethe environtests deteriorated mental tests specified in 6.2.4 andindirect 6.2.5, check as an that indirect check that the has not specified in 6.2.4 and 6.2.5, as an the insulation has notinsulation deteriorated deteriorated The insulation integrity test is a voltage test applied between each conductor and every other conductor and integrity between test each and applied the sheath A voltage equal to the rated voltage The insulation is conductor a voltage test between each conductor and every other of the cableand shall be applied Noand insulation breakdown shallequal occur conductor between eachfor conductor the sheath A voltage to the rated voltage of the cable shall be applied for No insulation breakdown shall occur 6.2.4 Maximum operating temperature test 6.2.4 Maximum operating temperature test The sample shall be heated to a temperature at least K - and not more than 10 K - higher than the maximum operating temperature specified by 5the this 10 temperature, The sample shall be heated to a temperature at least K manufacturer - and not moreAtthan K - higher the sample shall pass the insulation integrity test as specified in 6.2.3, and the insulation than the maximum operating temperature specified by the manufacturer At this temperature, resistance measured with a d.c voltage between 80 V and 500 V applied between each the sample shall pass the insulation integrity test as specified in 6.2.3, and the insulation conductor and every other and between sheath shall beeach not resistance measured with conductor a d.c voltage betweeneach 80 conductor V and 500and V the applied between less than 1and M .every other conductor and between each conductor and the sheath shall be not conductor less than M 6.2.5 Temperature cycle test 6.2.5 Temperature cycle test The sample shall be heated to a temperature at least K - and not more than 10 K - higher than sample the maximum specified manufacturer and maintained at The shall beoperating heated totemperature a temperature at leastby5 the K - and not more than 10 K - higher this temperature for operating (16 1) h.temperature Then it shallspecified be transferred a refrigeratedand compartment than the maximum by thetomanufacturer maintainedand at maintained at theforminimum specified the manufacturer ( 5 K) and for this temperature (16 1) operating h Then it temperature shall be transferred to by a refrigerated compartment (8 1) h This shall be repeated times maintained at cycle the minimum operating 20 temperature specified by the manufacturer ( 5 K) for (8 1) h This cycle shall be repeated 20 times On completion of the 20 cycles the sample shall be allowed to return to room temperature, and completion then it shall be placed in athehumidity (25 to 5) return °C andto(95 5) % relative On of the 20 cycles sample cabinet shall beatallowed room temperature, humidity and thenfor it (16 shall 1) beh.placed in a humidity cabinet at (25 5) °C and (95 5) % relative humidity for (16 1) h © BSI 10 April 2002 © BSI 10 April 2002 Page EN 60702−2:2002 60702-2 © IEC:2002 –8– BS EN 60702-2:2002+A1:2015 IEC 60702-2:2002+A1:2015 After removal from the humidity cabinet, the surface moisture shall be dried and the sample shall pass the insulation resistance test as specified in 6.2.2 and the insulation integrity test as specified in 6.2.3 6.2.6 Tensile test This test is applicable only to those seals which are intended to be used as a means of attachment of cables to supporting structures or enclosures For the purpose of this test, only one seal need be fitted to the cable sample The assembly shall be tested in a suitable tensile testing machine in such a way that the load is applied without imparting any crushing force The load shall be increased gradually to the proof value specified in table 1, and maintained at that value for s After testing, the seal shall show no splits or cracks or movement relative to the cable when examined with normal or corrected vision without magnification Table – Proof loads for sealing pots or glands Nominal diameter of cable mm 6.3 6.3.1 Proof load N Above Up to and including – 35 70 – 100 Glands Tensile test The gland shall be fitted to one end of a cable sample in accordance with the manufacturer's recommendations The entry thread on the body of the gland shall be screwed into an appropriate female thread cut in a block of metal attached to one of the members of a suitable tensile testing machine The load shall be increased gradually to the proof value in table and maintained at that value for s After testing, the gland shall show no splits or cracks or movement relative to the cable when examined with normal or corrected vision without magnification 6.4 6.4.1 Electrical earth continuity test General The samples, prepared as described in 6.4.2 or 6.4.3, shall be heated in an oven to a temperature at least K - and not more than 10 K - higher than the maximum temperature specified by the manufacturer, and then allowed to return to room temperature The electrical potential difference shall be measured as specified in 6.4.2 or 6.4.3 and recorded The initial potential difference shall not exceed 10 mV © BSI 10 April 2002 BS EN 60702-2:2002+A1:2015 IEC 60702-2:2002+A1:2015 60702-2 © IEC:2002 Page EN 60702−2:2002 –9– The temperature cycle and potential measurement shall be repeated until the variation in three successive voltage measurements is less than % or for 10 cycles, whichever is the greater The final reading shall not be greater than the original reading by more than 10 % 6.4.2 Glands or seals with integral protective conductors or other protective conductor attachments The test shall be carried out on an assembly incorporating a gland/seal with a protective conductor at each end of a cable sample, assembled in accordance with the manufacturer’s recommendations Only those components concerned with electrical continuity need be incorporated All parts shall be in a clean new condition and shall not be adjusted during the test A current of 25 A d.c or a.c r.m.s shall be passed between the free ends of the protective conductors The potential difference shall be measured at each end of the assembly between a point on the protective conductor not more than 1,5 mm from the attachment and a point on the cable sheath no more than 1,5 mm from the attachment 6.4.3 Glands intended to provide earth continuity without integral protective conductors The test shall be carried out on an assembly incorporating two glands screwed into appropriate threads cut in two blocks of metal A current of 25 A d.c or a.c r.m.s shall be passed between the two blocks The potential difference shall be measured at each end of the assembly between a point on the gland body and a point on the cable sheath no more than 1,5 mm from the gland _ © BSI 10 April 2002 IEC 60702-2:2002/AMD1:2015 © IEC 2015 6.4.3 –3– Glands intended to provide conductors IEC 60702-2:2002/AMD1:2015 Add, © IECafter 20156.4.3, the following new text: 6.4.3 Glands intended conductors to earth EN 60702-2:2002+A1:2015 continuity BS without integral protective IEC 60702-2:2002+A1:2015 –3– provideBibliography earth continuity without integral protective IEC 60702-3, Mineral insulated and their terminations with a rated voltage not Add, after 6.4.3, the following new cables text: exceeding 750 V – Part 3: Guide to use Bibliography IEC 60702-3, Mineral insulated cables and their terminations with a rated voltage not exceeding 750 V – Part 3: Guide to use _ _ _ Under consideration _ Under consideration 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 incorporated by Royal Charter British Standards and other standardization products are published by BSI Standards Limited About us Revisions We bring together business, 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