1、BRITISH STANDARDBS EN1710:2005Equipment and components intended for use in potentially explosive atmospheres in underground minesICS 73.100.30; 29.260.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g
2、40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58+A1:2008 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 1710:2005This British Standard waspublished under the authorit
3、yof the Standards Policy andStrategy Committee on 31 July 2006 BSI 2009National forewordThis British Standard is the UK implementation of . It supersedes BS EN 1710:2005 which is withdrawnThe UK participation in its preparation was entrusted to Technical CommitteeFSH/23, Fire precautions in industri
4、al and chemical plant.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions of acontract. Users are responsible for its correct application. Amendments/corrigenda issued since publica
5、tionEN 1710:2005+A1:2008. The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“ . Compliance with a British Standard
6、 fromlegal obligations.cannot confer immunity Date Comments Implementation of CEN amendment A1:2008ISBN 978 0 580 6 0510 9Amendment A1:2008 makes no technical changes, but confirms the relationship between the standard, and the updated machinery directive, which is due to come into force in all EU e
7、mber tates in December 200 .m s 9+A1:2008 30 June 2009Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1710:2005+A1 April 2008
8、 ICS 73.100.30 Supersedes EN 1710:2005 English Version Equipment and components intended for use in potentially explosive atmospheres in underground mines Appareils et composants destins tre utiliss dans les mines souterraines grisouteuses Gerte und Komponenten fr den Einsatz in schlagwettergefhrdet
9、en Bereichen von untertgigen Bergwerken This European Standard was approved by CEN on 26 September 2005 and includes Amendment 1 approved by CEN on 18 March 2008. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standar
10、d 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 Management Centre or to any CEN member. This European Standard exists in three official versions (English, French,
11、German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Cze
12、ch Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUR
13、OPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1710:2005+A1:2008: ECopyright European Committee for Standardization P
14、rovided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2 Contents Page Foreword4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .8 4 Requirements for equipment (machines) and components8 4.1 General8 4.2 Non
15、-electrical equipment and components9 4.3 Electrical equipment and components9 4.3.1 General9 4.3.2 Electrical equipment protection.10 4.3.3 Overcurrent protection10 4.3.4 Earth-fault protection 11 4.3.5 Mechanical protection of live parts11 4.3.6 Electric cables that are part of the equipment11 5 A
16、dditional requirements for specific equipment and components12 5.1 Cutting and stripping equipment .12 5.1.1 General12 5.1.2 Machines with cutting picks .12 5.1.3 Stripping machines13 5.2 Rope haulages for level and inclined transport .13 5.3 Fans.13 5.3.1 Ventilating fans for use underground .13 5.
17、3.2 Other fans .15 5.4 Diesel engines16 5.5 Air compressors 16 5.6 Drilling equipment and components .16 5.7 Brakes .16 5.8 Traction batteries, starter batteries and vehicle lighting batteries 17 5.9 Optical fibres used on machines and electromagnetic radiation from components on machines 17 6 Fire
18、protection17 6.1 General17 6.2 Non-metallic materials 18 6.3 Internal combustion engines fitted to machines18 6.4 Hydraulic and pneumatic equipment.18 6.5 Additional requirements for cable-reeled machines18 6.6 Fire prevention on electric cables that are part of the machine .19 6.7 Conveyor belting1
19、9 7 Information for use 19 7.1 Signals and warning notices 19 7.2 User instructions .19 7.2.1 General19 7.2.2 Information on use.20 7.2.3 Information on maintenance and repair 20 7.3 Marking .20 BS EN 1710:2005+A1:2008EN 1710:2005+A1:2008 (E) Copyright European Committee for Standardization Provided
20、 by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3 Annex A (informative) Example of an ignition hazard assessment for a conveyor belt intended for use in a coal mine21 A.1 General .21 A.2 Category and intended use of the equipment 21 A.
21、3 Construction/description of the equipment21 A.4 Assessment .22 Annex B (informative) Example of an ignition hazard assessment for a shearer loader intended for use in a potentially explosive atmosphere of a coal mine 26 B.1 General .26 B.2 Category and intended use of equipment.26 B.3 Construction
22、/description of the equipment with regard to ignition protection27 B.4 Ignition control and monitoring system27 B.5 Compliance with the basic methodology and requirements in EN 13463-128 B.6 Ignition hazard assessment of the electrical parts of the equipment28 B.7 Ignition hazard assessment of non-e
23、lectrical ignition sources .28 B.8 Equipment marking .28 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 94/9/EC35 Annex ZB (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 98/37
24、/EC38 Annex ZC (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC39 Bibliography40 BS EN 1710:2005+A1:2008EN 1710:2005+A1:2008 (E) Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo
25、 reproduction or networking permitted without license from IHS-,-,-4 Foreword This European Standard (EN 1710:2005+A1:2008) has been prepared by Technical Committee CEN/TC 305 “Potentially explosive atmospheres - Explosion prevention and protection”, the secretariat of which is held by DIN. This Eur
26、opean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2008, and conflicting national standards shall be withdrawn at the latest by October 2008. This document includes Amendment 1, approved by CEN on 20
27、08-03-18. This document supersedes EN 1710:2005. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and support
28、s essential requirements of EU Directive(s). !For relationship with EU Directive(s), see informative Annexes ZA, ZB and ZC which are integral parts of this document.“ According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to imple
29、ment this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland
30、and United Kingdom. BS EN 1710:2005+A1:2008EN 1710:2005+A1:2008 (E) Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5 Introduction This European Standard specifies requirements f
31、or the constructional features of equipment and components that may be an individual item or form an assembly, to enable them to be used in mines, or parts of mines, susceptible to explosive atmospheres of firedamp and/or combustible coal dust. Most of the electrical equipment used on mining machine
32、ry is certified as an individual item of equipment e.g. the motor, switchgear etc., and meets its own marking requirements. This Notified Body Certification, however, does not deal with the interconnection of these items of equipment by cables or the machine electrical power system as an entity. In
33、order to comply with 1.6.4 of the Essential Safety Requirements of the ATEX Directive (94/9/EC), the equipment and components including their interconnections should be assessed, from an ignition point of view, by the manufacturer. Both non-electrical equipment and the interconnection of electrical/
34、non-electrical equipment require an ignition hazard risk assessment to satisfy the Essential Health and Safety requirements of the ATEX Directive and be put in the appropriate declaration of conformity document. Therefore, it is necessary that not just the equipment, but all its parts, is examined b
35、y the manufacturer according to a formally documented hazard assessment that establishes and lists all the possible ignition sources of the equipment including the cables and electrical supply system. The documentation shall list the measures that shall be introduced to prevent possible ignition sou
36、rces becoming effective. The need for this European Standard arises because of major operational differences between underground mining operations and those in other industries working with, or in, potentially explosive atmospheres. Examples of these differences are: the product being won from the u
37、nderground strata may be combustible and continually releases firedamp during the winning process; the ignitability of the atmosphere around equipment and components usually depends upon the amount of dilution offered by an active ventilating system; the atmosphere in the general body of mine air in
38、 which machinery is working may change from one that is potentially explosive to one that is explosive (for example, during an outburst of firedamp); persons working in the mine are usually situated within the potentially explosive atmosphere; there is a need to monitor constantly the mine atmospher
39、e at strategic places to ensure that power can be disconnected from all equipment except that which is suitable for use in an explosive atmosphere; in gassy coal mines, an explosion of firedamp at a machine can raise a combustible dust cloud that exacerbates the explosion; some mining machinery, esp
40、ecially that associated with winning the product, contains cutting devices and drilling devices that are intended to cut into the combustible product as part of their normal operation. This introduces an ignition risk from frictional heating or frictional sparking from contact with strata containing
41、 high concentrations of quartz or iron pyrites; long roadways in coal mines are equipped with mineral conveying systems carrying a product that has a potential for raising an explosive dust cloud. To decide which equipment or its component parts should merit inclusion in this European Standard, igni
42、tion data has been examined based on French, German and UK experience. BS EN 1710:2005+A1:2008EN 1710:2005+A1:2008 (E) Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-6 When draf
43、ting this European Standard, it has been assumed that equipment and components are: designed in accordance with good engineering practice, taking account of expected shocks, vibrations and failure modes; of sound mechanical and electrical construction; made of materials with adequate strength and of
44、 suitable quality; free from defects and are kept in good repair and working order, e.g. so that the required dimensions remain within permissible tolerance despite wear. 1 Scope This European Standard specifies the explosion protection requirements for the construction and marking of equipment that
45、 may be an individual item or form an assembly. This includes machinery and components placed on the market by a single supplier for use in mines susceptible to explosive atmospheres of firedamp and/or combustible dust (at atmospheric conditions as defined in EN 1127-2). NOTE 1 This European Standar
46、d deals only with the ignition protection of mining machinery and manufacturers will need to take account of all other relevant EU Directives relating to the construction of machines e.g. the consolidated Machinery Directive 98/37/EC !and Directive 2006/42/EC“. Additionally, manufacturers will need
47、to take account of any national legislation in the country where they intend to market their equipment. NOTE 2 Where the flammable gas in the atmosphere is not predominantly methane, reference will need to be made to 4.1 in either EN 60079-0:2004 or EN 13463-1:2001. NOTE 3 The definition of equipmen
48、t is contained in EN 13463-1. The definition of assembly can be found the ATEX guidelines, published by the European Commission. Equipment complying with the relevant clauses of this European Standard is considered to meet the requirements for equipment of Group I - Category M2. This European Standa
49、rd also deals with the prevention of ignitions of explosive atmospheres caused by burning (or smouldering) of combustible material such as fabric fibres, plastic ”O”-rings, rubber seals, lubricating oils or greases used in the construction of the equipment if such items could be an ignition source. For example, the mechanical failure of rot
