1、 IEC 60079-35-2 Edition 1.0 2011-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Explosive atmospheres Part 352: Caplights for use in mines susceptible to firedamp Performance and other safety-related matters Atmosphres explosives Partie 35-2: Lampes chapeaux utilisables dans les mines grisouteuses P
2、erformances et autres sujets relatifs la scurit IEC60079-35-2:2011 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2011 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mec
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16、ation ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 60079-35-2Edition 1.0 2011-12INTERNATIONAL STANDARD NORME INTERNATIONALEExplosive atmospheres Part 352: Caplights for use in mines susceptible to
17、 firedamp Performance and other safety-related matters Atmosphres explosives Partie 35-2: Lampes chapeaux utilisables dans les mines grisouteuses Performances et autres sujets relatifs la scurit INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE MICS 29.260.20 PRICE
18、 CODECODE PRIXISBN 978-2-88912-818-1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 60079-35-2 IEC:2011 CONTENTS FOREWORD . 3 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Light output 5 4.1
19、 Light sources . 5 4.2 Light source holder 6 4.3 Luminous intensity and 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 Faste
20、ners and connectors . 7 5.4.2 Resistance to abrasion 7 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 Anne
21、x A (informative) Examples of the manufacturers 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 60079-35-2 IEC:2011 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ EXPLOSIVE ATMOSPHERES Part 35-2: Capl
22、ights for use in mines susceptible to firedamp Performance and other safety-related matters FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC
23、 is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS)
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25、he IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearl
26、y as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that
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29、 attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edi
30、tion of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether di
31、rect or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispen
32、sable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60079-35-
33、2 has been prepared by IEC technical committee 31: Equipment for explosive atmospheres. This first edition of IEC 60079-35-2 cancels and replaces the second edition (2005) of IEC 62013-2 published in 2005 and constitutes a full technical revision. The general revision and updating of Edition 2 of IE
34、C 62013-2 has been necessitated by the advent of new technologies related to caplight design, in particular those related 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
35、 the reference in the Scope of part 1 from a note to a requirement. In addition as this Standard is now to become one of the IEC 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 le
36、ngth of clauses in the Standard. 4 60079-35-2 IEC:2011 The text of this standard is based on the following documents: FDIS Report on voting 31/955/FDIS 31/963/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This
37、publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all the parts in the IEC 60079 series, under the general title Explosive atmospheres, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until
38、 the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. 60079-35-2 IEC:2011 5 EXPLOSIVE ATMOSPHERES Part 352: Caplights fo
39、r use in mines susceptible to firedamp Performance and other safety-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 impor
40、tant for the safety and working conditions of the user. It may also 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 su
41、bject of agreement between the supplier and the user and, where possible, 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,
42、 the latest edition of the referenced document (including any amendments) 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 Gener
43、al requirements Construction and testing in relation to the risk of 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 ho
44、urs defined by the manufacturer, taking into account the current drawn 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 intens
45、ity requirements of this standard 4 Light output 4.1 Light sources 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 6 60079-35-2 IEC:2011 single l
46、ight source may be used provided it is a non-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 aux
47、iliary source; otherwise, both sources shall 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 so
48、urce holder The holder for the main light source 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, i
49、n its normal operating orientation, shall point 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 a fully assembled headpiece, mounted on its intend
