1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationExplosive atmospheresPart 35-2: Caplights for use in mines susceptible to firedamp Performance and other safety-related matters(IEC 60079-35-2:2011)BS EN 60079-35-2:2012National
2、forewordThis British Standard is the UK implementation of EN 60079-35-2:2012. It is identical to IEC 60079-35-2:2011. It supersedes BS EN 62013-2:2006,which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee EXL/31, Equipment for explosive atmospheres.A list of
3、 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 2012Published by BSI Standards Limite
4、d 2012 ISBN 978 0 580 72294 3 ICS 29.260.20; 73.100.20Compliance 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 30 September 2012.Amendments issued since publicationAmd. N
5、o. Date Text affectedBRITISH STANDARDBS EN 60079-35-2:2012EUROPEAN STANDARD EN 60079-35-2 NORME EUROPENNE EUROPISCHE NORM August 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Manag
6、ement Centre: Avenue Marnix 17, B - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60079-35-2:2012 E ICS 29.260.20 Supersedes EN 62013-2:2006English version Explosive atmospheres - Part 35-2: Caplights for use
7、in mines susceptible to firedamp - Performance and other safety-related matters (IEC 60079-35-2:2011) Atmosphres explosives - Partie 35-2: Lampes chapeaux utilisables dans les mines grisouteuses - Performances et autres sujets relatifs la scurit (CEI 60079-35-2:2011) Explosionsfhige Atmosphre - Teil
8、 35-2: Kopfleuchten fr die Verwendung in schlagwettergefhrdeten Grubenbauen - Gebrauchstauglichkeit und andere sicherheitsrelevante Themen (IEC 60079-35-2:2011) This European Standard was approved by CENELEC on 2012-01-11. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations
9、 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.
10、 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.
11、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 Neth
12、erlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 60079-35-2:2012EN 60079-35-2:2012 Foreword The text of document 31/955/FDIS, future edition 1 of IEC 60079-35-2, prepared by IEC/TC 31 “Equipment for explosive atmospheres
13、“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60079-35-2:2012. 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 (dop) 2013-02-10 latest date by
14、which the national standards conflicting with the document have to be withdrawn (dow) 2015-01-11 This document supersedes EN 62013-2:2006. The general revision and updating of EN 62013-2:2006 has been necessitated by the advent of new technologies related to caplight design, in particular those rela
15、ted light-emitting diode (LED) light sources. It is intended that there should be a stronger link between Part 1 (Construction) and Part 2 (Performance) of this standard by upgrading the reference in the scope of part 1 from a note to a requirement. In addition, as this standard is now to become one
16、 of the EN 60079 series, changes have been made to bring it more in line with others in the series by cross referencing. This has enabled there to be a reduction in the number and length of clauses in the standard. Attention is drawn to the possibility that some of the elements of this document may
17、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 60079-35-2:2011 was approved by CENELEC as a European Standard without any modification. BS EN 60079-35-2:201
18、2EN 60079-35-2:2012 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 t
19、he 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 IEC
20、60050-845 - International Electrotechnical Vocabulary (IEV) - Chapter 845: Lighting - - IEC 60079-35-1 - Explosive atmospheres - Part 35-1: Caplights for use in mines susceptible to firedamp - General requirements - Construction and testing in relation to the risk of explosion EN 60079-35-1 - IEC 60
21、983 - Miniature lamps EN 60983 - ISO 80000-1 - Quantities and units - Part 1: General - - BS EN 60079-35-2:201260079-35-2 IEC:2011 CONTENTS 1 Scope . . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Light output . . 5 4.1 Light sources 5 4.2 Light source holder 6 4.3 Luminous intensity a
22、nd illuminance . 6 4.4 Auxiliary light source . . 6 4.5 Focus . . 6 4.6 Chromaticity . 6 5 Reliability . 6 5.1 Lamp life . . 6 5.2 Battery life (charge/discharge cycles) 7 5.3 Caplight useful working period . . 7 5.4 Durability . . 7 5.4.1 Fasteners and connectors 7 5.4.2 Resistance to abrasion . 7
23、5.4.3 Operability after mechanical tests . 7 6 Ergonomics . . 7 6.1 Mass . 7 6.2 Ease of operation 8 6.3 Maintainability . 8 6.4 Headpiece security 8 7 Type tests Illumination throughout the useful working period . 8 8 Instructions. 9 9 Marking . 9 Annex A (informative) Examples of the manufacturers
24、 instructions for routine testing by the user. 10 Figure A.1 Schematic drawing of a typical photometric sphere 11 Table A.1 Tabulation of tests 12 BS EN 60079-35-2:201260079-35-2 IEC:2011 5 EXPLOSIVE ATMOSPHERES Part 352: Caplights for use in mines susceptible to firedamp Performance and other safet
25、y-related matters 1 Scope This part of IEC 60079-35 details those performance and other safety features of caplights, including those with a point of connection for another equipment, not covered in IEC 60079-35-1, but which are important for the safety and working conditions of the user. It may als
26、o be applied to caplights for use in mines not likely to be endangered by firedamp. NOTE When this part of the standard is used as a “stand-alone“ document for non-gassy mines, any relevant constructional requirements should be the subject of agreement between the supplier and the user and, where po
27、ssible, be as described in IEC 60079-35-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amen
28、dments) applies. IEC 60050-845, International Electrotechnical Vocabulary (IEV) Chapter 845: Lighting IEC 60983, Miniature lamps IEC 60079-35-1, Explosive atmospheres Part 35-1: Caplights for use in mines susceptible to firedamp General requirements Construction and testing in relation to the risk o
29、f explosion1ISO 80000-1, Quantities and units Part 1: General 3 Terms and definitions For the purposes of this document, the definitions of ISO 80000-1 and IEC 60050(845) and the following apply: 3.1 useful working period period in hours defined by the manufacturer, taking into account the current d
30、rawn by the main light source and if appropriate, the average current drawn by any accessories during that period, during which the main light source of the caplight may be continuously used and comply with the minimum luminous intensity requirements of this standard 4 Light output 4.1 Light sources
31、 4.1.1 Every headpiece shall have a minimum of two light sources, at least one of which shall be the main source and meet the requirements of this part of IEC 60079-35. Alternatively a _ 1To be published BS EN 60079-35-2:2012 6 60079-35-2 IEC:2011 single light source may be used provided it is a non
32、-filament type and it meets the lamp life defined in 5.1. 4.1.2 Where a caplight is fitted with two light sources, each of which is capable of being the main source, the manufacturer shall designate which of these shall be the main source and which the auxiliary source; otherwise, both sources shall
33、 meet the requirements for the main source. 4.1.3 Filament lamps for main and auxiliary sources shall comply with IEC 60983. Where the relevant data sheet is not given in IEC 60983, an equivalent shall be provided by the caplight manufacturer. 4.2 Light source holder The holder for the main light so
34、urce shall be capable of locating and retaining it securely in a focused position with respect to the reflector profile in accordance with 4.5. 4.3 Luminous intensity and illuminance The main beam of light from a headpiece mounted on its intended helmet, in its normal operating orientation, shall po
35、int 10 degrees 5 degrees down from the horizontal. NOTE A statement from the caplight manufacturer stating compliance with this requirement is acceptable and need not be verified if certification is sought. At the end of the useful working period, the luminous intensity from the main light source in
36、 a fully assembled headpiece, mounted on its intended helmet in its normal operating orientation, shall extend a cone with a minimum of 1 cd (1 lux at 1m). This cone shall not be less than 30 degrees up from the main beam of light, 60 degrees down from the main beam of light and 60 degrees to each s
37、ide. This may be calculated from manufacturers data or tested in accordance with Clause 7. The maximum illumination shall not be less than 1 500 cd (1 500 lux at 1 m). 4.4 Auxiliary light source The auxiliary light source is primarily intended for emergency use if the main source fails and is exempt
38、 from the type tests in Clause 7. 4.5 Focus The main light source shall be focused, or capable of being focused, so that the light pattern is not impaired by distortion. 4.6 Chromaticity For non-filament light sources, the colour correlated temperature (CCT) shall be greater than 5 000 K and the col
39、our rendering index (CRI) shall be greater than 70, unless alternative values are specified by the caplight manufacturer and included in the user instructions. NOTE The values of CCT and CRI supplied by the caplight manufacturer need not be verified if certification is sought. 5 Reliability 5.1 Lamp
40、 life The light source life of caplights fitted with two filament light sources shall comply with the requirements of Lamps for miners caplights in IEC 60983. If the lamp manufacturer provides a data sheet showing such test results, it may be accepted without further testing. The BS EN 60079-35-2:20
41、1260079-35-2 IEC:2011 7 minimum life shall be not less than 200 h for the main source and 50 h for the auxiliary source. The light source life of caplights fitted with two non-filament light sources shall be not less than 200 h for the main source and 50 h for the auxiliary source, when tested at th
42、e maximum operating ambient temperature and nominal battery voltage. For caplights with two light sources, after 200 hours the luminous intensity of the main light source shall meet the requirements of 4.3. The life of non-filament type single light sources shall not be less than 5 000 h when determ
43、ined either by test of the entire caplight headpiece or by using manufacturers life data, junction temperature, maximum operating ambient temperature, nominal battery voltage and appropriate calculations based on the entire caplight headpiece. The resultant luminous intensity after 5 000 hours sourc
44、e shall meet the requirements of 4.3. 5.2 Battery life (charge/discharge cycles) It is not possible to specify a cyclic life for the battery due to the multiplicity of battery types, charging regimes and conditions of use. The manufacturer shall prepare instructions to the user on the recharge time
45、and routine checks which are necessary to ensure that the battery is capable of performing its intended duties during the actual working period. See Clause 8 and Annex A. NOTE The choice of battery charging equipment will depend on the time available between successive actual working periods. When t
46、he recharge time is insufficient to fully recharge the battery, the manufacturer may need to advise the user to provide additional caplights. 5.3 Caplight useful working period The manufacturer shall declare the useful working period of the caplight when new, taking into account the current drawn by
47、 the main light source and, if appropriate, the average current drawn by any accessories during that period. The test requirements are given in Clause 7. 5.4 Durability 5.4.1 Fasteners and connectors Fasteners and connectors shall be designed so that they are not likely to loosen in normal use. 5.4.
48、2 Resistance to abrasion The caplight shall be constructed from materials which are resistant to abrasion in normal use. 5.4.3 Operability after mechanical tests Following completion of the Drop tests in IEC 60079-35-1, at least one light source shall still be operable and there shall be no leakage
49、of electrolyte. 6 Ergonomics 6.1 Mass Unless otherwise agreed between the manufacturer and the user, the mass of the battery and container shall not exceed 2 750 g and the total mass of the complete caplight assembly shall not exceed 3 250 g. BS EN 60079-35-2:2012 8 60079-35-2 IEC:2011 Unless otherwise agreed between the manufacturer and the user, the mass of headpiece only caplights (caplights with an integral battery) shall not exceed 250 g. The recommended maximum mass of the headpiece
