BS EN 60695-2-11

BRITISH STANDARDBS EN 60695-2-11: 2001 IEC 60695-2-11: 2000 Fire hazard testing — Part 2-11: Glowing/hot-wire based test methods — Glow-wire flammability test method for end-products The European Standard EN 60695-2-11:2001 has the status of a British Standard ICS 13.220.40; 29.020 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale //^:^^#^~^^""~:@":^*^~$~"#:*~"@"~:$:~:~~@^~:^:@:~*:$"\\ --`,,,,`,-`-`,,`,,`,`,,`--- A British Standard does not purport to include all the necessary provisions of a contract. For a period of time during the change over from one numbering system to the other. Fire hazard testing. The UK participation in its preparation was entrusted to Technical Committee GEL/89. which has the responsibility to: — — aid enquirers to understand the text. It supersedes BS EN 60695-2-1/1:1997 which is withdrawn..`. the EN title page. It is identical with IEC 60695-2-11:2000.Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale . all IEC publications have the number 60000 added to the old number.. was published under the authority of the Standards Committee and comes into effect on 15 June 2001 Summary of pages This document comprises a front cover. publications may contain identifiers from both systems. or proposals for change. — A list of organizations represented on this committee can be obtained on request to its secretary. //^:^^#^~^^""~:@":^*^~$~"#:*~"@"~:$:~:~~@^~:^:@:~*:$"\\ This British Standard.. having been prepared under the direction of the Electrotechnical Sector Committee. and keep the UK interests informed. pages 2 to 9 and a back cover.`. or by using the “Find” facility of the BSI Standards Electronic Catalogue. Users of British Standards are responsible for their correct application. Amendments issued since publication Amd. The BSI copyright date displayed in this document indicates when the document was last issued. © BSI 06-2001 Date Comments ISBN 0 580 37637 0 --`. No.BS EN 60695-2-11:2001 National foreword This British Standard is the official English language version of EN 60695-2-11:2001. an inside front cover. present to the responsible international/European committee any enquiries on the interpretation..-`-`. Compliance with a British Standard does not of itself confer immunity from legal obligations. IEC 27-1 has been renumbered as IEC 60027-1. For instance..`. From 1 January 1997. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications.`--- Copyright British Standards Institution Reproduced by IHS under license with BSI . monitor related international and European developments and promulgate them in the UK..`. Iceland. EN 60695-2-11:2001 E --`. Norway. 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. Netherlands. Italy.40.020 EN 60695-2-11 January 2001 Supersedes EN 60695-2-1/1:1996 English version Fire hazard testing Part 2-11: Glowing/hot-wire based test methods Glow-wire flammability test method for end-products (IEC 60695-2-11:2000) Essais relatifs aux risques du feu Partie 2-11: Essais au fil incandescent/chauffant Méthode d'essai d'inflammabilité pour produits finis (CEI 60695-2-11:2000) Prüfungen zur Beurteilung der Brandgefahr Teil 2-11: Prüfungen mit dem Glühdraht Prüfung mit dem Glühdraht zur Entflammbarkeit von Enderzeugnissen (IEC 60695-2-11:2000) This European Standard was approved by CENELEC on 2000-11-01. CENELEC members are the national electrotechnical committees of Austria.`--- Copyright British Standards Institution Reproduced by IHS under license with BSI . Spain. Ireland..-`-`.220.All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Portugal. Sweden. Ref. Denmark. Germany. B .`.EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM ICS 13. This European Standard exists in three official versions (English. Greece.. 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. Czech Republic.. Belgium. Switzerland and United Kingdom. Luxembourg.29. France.1050 Brussels © 2001 CENELEC .. CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung Central Secretariat: rue de Stassart 35. German).`.Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale //^:^^#^~^^""~:@":^*^~$~"#:*~"@"~:$:~:~~@^~:^:@:~*:$"\\ .`. French. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. Finland.. No..`. `. The following dates were fixed: – latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement – latest date by which the national standards conflicting with the EN have to be withdrawn This standard is to be used in conjunction with EN 60695-2-10. Annexes designated "informative" are given for information only.... Fire hazard testing.. __________ //^:^^#^~^^""~:@":^*^~$~"#:*~"@"~:$:~:~~@^~:^:@:~*:$"\\ Copyright British Standards Institution Reproduced by IHS under license with BSI .. was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60695-2-11 on 2000-11-01.`.-`-`. In this standard.. Annex ZA has been added by CENELEC. prepared by IEC TC 89. Annexes designated "normative" are part of the body of the standard. __________ (dop) 2001-08-01 (dow) 2003-11-01 Endorsement notice --`.`.`.Page 2 6 NE960-5-2:110021 EN 60695−2−11:2001 -2- Foreword The text of document 89/413/FDIS.`--- The text of the International Standard IEC 60695-2-11:2000 was approved by CENELEC as a European Standard without any modification. annex ZA is normative and annex A is informative. This European Standard supersedes EN 60695-2-1/1:1996. future edition 1 of IEC 60695-2-11.Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale . wherever applicable. any of these publications do not apply. Fire hazard testing – Part 2-10: Glowing/hot-wire based test methods – Glow-wire apparatus and common test procedure ISO/IEC 13943:2000..`--- 3 Definitions For the purpose of this part of IEC 60695. One of the responsibilities of a technical committee is..`. 2 Normative references The following normative documents contain provisions which. end-product means electrotechnical equipment.. its subassemblies. For the purpose of this standard. Fire hazard testing – Part 2: Test methods – Section 2: Needle-flame test IEC 60695-2-10:2000. parties to agreements based on this part of IEC 60695 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. IEC 60695-2-2:1991. and components.Uncontrolled Copy No reproduction or networking permitted without license from IHS © BSI 06-2001 Not for Resale //^:^^#^~^^""~:@":^*^~$~"#:*~"@"~:$:~:~~@^~:^:@:~*:$"\\ . as well as the following definition.`. apply. through reference in this text. Copyright British Standards Institution Reproduced by IHS under license with BSI . to make use of basic safety publications in the preparation of its publications. or revisions of. constitute provisions of this part of IEC 60695.. However.`. Fire safety – Vocabulary --`..-`-`. Members of IEC and ISO maintain registers of currently valid International Standards..Page 3 EN 60695−2−11:2001 FIRE HAZARD TESTING – Part 2-11: Glowing/hot-wire based test methods – Glow-wire flammability test method for end-products 1 Scope This part of IEC 60695 specifies the details of the glow-wire test to be applied to end-products for fire hazard testing. the latest edition of the normative document referred to applies. For undated references.`. subsequent amendments to. the definitions given in ISO/IEC 13943. For dated references. or b) cut an aperture in the complete end-product to allow the glow-wire access. If the test specimen emits flames during the application of the glow-wire.. or of burning or glowing particles falling in the vicinity of. under defined conditions. //^:^^#^~^^""~:@":^*^~$~"#:*~"@"~:$:~:~~@^~:^:@:~*:$"\\ --`.. the test shall be invalid. A small aperture may affect the results by leading to the ignition of the surroundings. or c) remove the part under examination in its entirety and test it separately.-`-`.. ventilation. during the test. has a limited duration of burning without spreading fire by flames or by burning or glowing particles falling from the test specimen. possibly. The test is carried out to ensure that. The test specimen shall be chosen so that the conditions of the test will not be significantly different from those occurring in normal use with regard to shape. and that a part. any part of the equipment containing the test specimen is ignited by extraneous heat from the glow-wire and so influences the thermal conditions at the test specimen. Technical committees should define in their relevant specifications what may be removed to achieve access. If.`. the fire hazard created may necessitate further tests using other ignition sources such as the needle-flame applied to those parts which are reached by the emitted flames. whereas too large an aperture may permit more oxygen than would normally be available. of flames occurring in. the needle-flame test in IEC 60695-2-2. or unless otherwise specified by the relevant specification. the test specimen.`--- Copyright British Standards Institution Reproduced by IHS under license with BSI . projections on the surface and holes which are not greater than 2 mm on the largest dimensions are disregarded.. where each surface lies completely within a circle of 15 mm diameter or where some of the surface lies outside the 15 mm diameter circle but in such a way that it is not possible to place a circle of 8 mm diameter on any of this remaining surface NOTE When checking a surface. the glow-wire does not cause ignition of parts. if ignited. for example.1 small parts parts. it is acceptable to a) cut a piece containing the part under examination from it. If the test cannot be made on a complete end-product.`.`. Circles are 8 mm and 15 mm in diameter Surface To be tested using the glow-wire No glow-wire test is required IEC 2897/2000 4 Description of test considerations and test specimen selection If possible.Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale © BSI 06-2001 .Page 4 EN 60695−2−11:2001 3. by reducing the temperature of the glow-wire or by restricting the availability of oxygen.`.. The glow-wire test shall not be used for small parts for which reference may need to be made to other test methods.. the test specimen should be a complete end-product. effect of thermal stresses and. If the test specimen is a complete free-standing equipment..3 of IEC 60695-2-10. or the material or components normally surrounding or situated underneath the test specimen..`.3 of IEC 60695-2-10 extending for at least 100 mm outside the base of the equipment in all directions.-`-`. 8 Conditioning If not otherwise specified in the relevant specification.2 of IEC 60695-2-10. the test specimen and the specified layer to be used is conditioned for 24 h in an atmosphere having a temperature between 15 °C and 35 °C and a relative humidity between 45 % and 75 %. other test temperatures may be used.. 6 Severities The test temperature shall be chosen from the following values of table 1. by burning or glowing particles falling from the test specimen. The distances between the test specimen and the specified layer representing the surrounding material or components. for example. is placed underneath the test specimen. Table 1 – Test severities Preferred test temperatures °C 550 650 750 850 960 Tolerances K ±10 ±10 ±10 ±15 ±15 If required by the relevant specification. NOTE See annex A for guidance.`.. it is placed in its normal position of use on the specified layer as described in clause 5..Page 5 EN 60695−2−11:2001 5 Description of the test apparatus The description of the test apparatus is given in clause 5 of IEC 60695-2-10. To evaluate the possibility of spread of fire.`. Copyright British Standards Institution Reproduced by IHS under license with BSI .`--- . 7 Verification of the temperature measuring system The verification of the temperature measuring system is specified in 6. a specified layer as described in 5.. If the test specimen is a complete wall-mounted equipment. shall be equal to those when the test specimen is mounted in the electrotechnical product.Uncontrolled Copy No reproduction or networking permitted without license from IHS © BSI 06-2001 Not for Resale //^:^^#^~^^""~:@":^*^~$~"#:*~"@"~:$:~:~~@^~:^:@:~*:$"\\ --`.3 of IEC 60695-2-10.`. it is fixed in its normal position of use 200 mm ± 5 mm above the specified layer as described in 5. Page 6 EN 60695−2−11:2001 9 Initial measurements The test specimen shall be examined visually and.. b) the duration ( t e ) from the beginning of tip application up to the time when flames extinguish during or after the period of application.. e) any ignition of the specified layer placed underneath the test specimen. Clamping the test specimen onto the test apparatus shall not introduce excessive internal mechanical stresses in the test specimen during the test. The mechanical/electrical parameters shall be measured when specified in the relevant specification. and. when applied to the test specimen.1 In addition to clause 8 of IEC 60695-2-10..`.. when specified in the relevant specification.`. 10.2 If not otherwise specified by the relevant specification. c) the maximum height of any flame rounded up to the next 5 mm but disregarding the start of the ignition. which may produce a high flame for a period of approximately 1 s.`.Uncontrolled Copy No reproduction or networking permitted without license from IHS //^:^^#^~^^""~:@ Not for Resale © BSI 06-2001 . and the visible tip of the flame.`--- 11 Observations and measurements During application of the glow-wire ( t a ). and during a further period of 30 s. care shall be taken that any deterioration caused by previous tests will not affect the result of the test to be made. when viewed in subdued light. the tip of the glow-wire is applied at a place where the section is thinnest.-`-`. In cases where the test shall be made at more than one point on the same test specimen. the parts surrounding the test specimen and the specified layer placed below it shall be observed and the following shall be reported: a) the duration ( t i ) from the beginning of tip application up to the time at which the test specimen or the specified layer placed below it ignites. 10.. Copyright British Standards Institution Reproduced by IHS under license with BSI . NOTE The height of the flame is the vertical distance measured between the upper edge of the glow-wire. then this shall be reported in the test report. In cases where the areas subjected to thermal stresses during normal use of the equipment are not specified in detail. the test specimen. The glow-wire shall be maintained as close to the horizontal as is practicable. if not otherwise specified. the test specimen shall be so arranged that the tip of the glow-wire is applied to the part of the surface of the test specimen which is likely to be subjected to thermal stresses in normal use.. d) if a test specimen passes the test by virtue of most of the flaming material being withdrawn with the glow-wire. 10 Test procedure See clause 8 of IEC 60695-2-10. but preferably not less than 15 mm from the upper edge of the test specimen. --`.`. the test is made on one test specimen. the mechanical/electrical parameters measured. 1). i.e... or if all of the following situations apply: a) if flames or glowing of the test specimen extinguish within 30 s after removal of the glowwire. the height of flame – should be introduced (see clause 11). g) The test temperature (see table 1).3). or whether other criteria – for example on t i . t e . d) The number of test specimens (see clause 10. e) The surface to be tested and the point of application of the glow-wire (see clause 10.`..Page 7 EN 60695−2−11:2001 12 Evaluation of test results Unless otherwise specified in the relevant specification.Uncontrolled Copy No reproduction or networking permitted without license from IHS © BSI 06-2001 Not for Resale //^:^^#^~^^""~:@":^*^~$~"#:*~"@"~:$:~:~~@^~:^:@:~*:$"\\ . c) Any conditioning of the test specimens (see clause 8). b) The method of preparation (see clause 4).`--- Copyright British Standards Institution Reproduced by IHS under license with BSI . j) --`. and b) when the specified layer of wrapping tissue is used there shall be no ignition of the wrapping tissue. 13 Information to be given in the relevant specification a) The type and description of the test specimen (see clause 4)..1).`.`.-`-`. t e ≤ t a + 30 s. f) The specified layer to be used to evaluate the effect of flaming particles (see clause 5). i) Whether the criteria specified are sufficient to check compliance with the safety requirements... the test specimen is considered to have passed the glow-wire test if there is no flaming or glowing.`. h) Whether the tests shall be made at more than one point on the same test specimen (see clause 10. The mechanical/electrical parameters to be measured (see clauses 9 and 11). . Table A.`. and the consequences to be expected as a result of such a failure.Page 8 EN 60695−2−11:2001 Annex A (informative) Guidance for glow-wire test The appropriate test temperature should be chosen by estimating the risk of failure due to inadequate response to abnormal heat. and which are not subjected to other tests in this respect (in order to eliminate highly combustible material) ___________ Copyright British Standards Institution Reproduced by IHS under license with BSI . current-carrying parts 650 °C 750 °C 750 °C 850 °C 960 °C 750 °C 960 °C 550 °C Enclosures and covers not retaining currentcarrying parts in position 650 °C 750 °C 750 °C 850 °C 960 °C 650 °C 750 °C 550 °C Equipment for attended use Equipment for unattended use but under less stringent conditions --`.Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale © BSI 06-2001 //^:^^#^~^^""~:@":^*^~$~"#:*~"@"~:$:~:~~@^~:^:@:~*:$"\\ .`... the following suggestions are made.`--- Equipment for attended use but under more stringent conditions Equipment for unattended use continuously loaded Equipment for unattended use continuously loaded but under more stringent conditions Fixed accessories in installation Equipment to be used near the central supply point of a building To ensure a minimum level of resistance to ignition of.. To assist the technical committees in describing adequately the application of the glow-wire test associated with the test temperatures shown in table 1.1 – Guidance for glow-wire test Parts made of insulation material Kind of equipment Parts in contact with. parts liable to contribute to a fire hazard.`. or retaining in position.`...-`-`. to ignition and to spread of fire. and/or spread of fire by. For undated references the latest edition of the publication referred to applies (including amendments). Publication IEC 60695-2-2 Year 1991 Title Fire hazard testing Part 2: Test methods -. indicated by (mod).`. NOTE When an international publication has been modified by common modifications.`....Glow-wire apparatus and common test procedure Fire safety ...`.Section 2: Needleflame test Part 2-10: Glowing/hot-wire based test methods .--3 EN 60695−2−11:2001 Page 9 E6 N960-5-2:110021 Annex ZA (normative) Normative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference.`. subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision.. For dated references.Vocabulary EN/HD EN 60695-2-2 Year 1994 IEC 60695-2-10 2000 EN 60695-2-10 2001 ISO/IEC 13943 2000 EN ISO 13943 2000 --`. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. provisions from other publications.Uncontrolled Copy No reproduction or networking permitted without license from IHS Not for Resale //^:^^#^~^^""~:@":^*^~$~"#:*~"@"~:$:~:~~@^~:^:@:~*:$"\\ .`--- Copyright British Standards Institution Reproduced by IHS under license with BSI .-`-`. the relevant EN/HD applies. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible. stored in a retrieval system or transmitted in any form or by any means – electronic. Copyright Copyright subsists in all BSI publications. Contact the Information Centre. Copyright British Standards Institution Reproduced by IHS under license with BSI . Buying standards Orders for all BSI. photocopying.. In response to orders for international standards.`. and size. Tel: 020 8996 9000. 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