《BS-EN-61241-17-2005.pdf》由会员分享，可在线阅读，更多相关《BS-EN-61241-17-2005.pdf（30页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 61241-17:2005 Electrical apparatus for use in the presence of combustible dust Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines) The European Standard EN 61241-17:2005 has the status of a British Standard ICS 29.260.20 ? Lice
2、nsed Copy: sheffieldun sheffieldun, na, Fri Nov 10 09:25:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 61241-17:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 10 August 2005 BSI 10 August 2005 ISBN 0 580 46048 7 National foreword
3、This British Standard is the official English language version of EN 61241-17:2005. It is identical with IEC 61241-17:2005. Together with BS EN 61241-14:2004, it partially supersedes BS EN 50281-1-2:1999, which will be withdrawn on 1 September 2007. Together with BS EN 61241-0, BS EN 61241-1:2004 an
4、d BS EN 61241-14:2004, it partially supersedes BS 6467-1:1985 and BS 6467-2:1988, which are being kept current until BS EN 61241-0 is published. The UK participation in its preparation was entrusted by Technical Committee GEL/31, Electrical apparatus for explosive atmospheres, to Subcommittee GEL/31
5、/20, Electrical apparatus for use in the presence of combustible dusts, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications
6、 referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary
7、provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpreta
8、tion, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 26, an inside back cover and a back c
9、over. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 09:25:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 61241-17 NO
10、RME EUROPENNE EUROPISCHE NORM May 2005 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels ICS 29.260.20 Partly supersedes EN 50281-
11、1-2:1998 + A1:2002 English version Electrical apparatus for use in the presence of combustible dust Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines) (IEC 61241-17:2005) Matriels lectriques pour utilisation en prsence de poussires combustibles Part
12、ie 17: Inspection et maintenance des installations lectriques situes en emplacements dangereux (autres que les mines) (CEI 61241-17:2005) Elektrische Betriebsmittel zur Verwendung in Bereichen mit brennbarem Staub Teil 17: Prfung und Instandhaltung elektrischer Anlagen in explosionsgefhrdeten Bereic
13、hen (ausgenommen Grubenbaue) (IEC 61241-17:2005) This European Standard was approved by CENELEC on 2005-04-01. 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
14、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
15、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, Cyprus, Czech Republic, Denmark, Estonia, Finland,
16、 France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CE
17、NELEC members. Ref. No. EN 61241-17:2005 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 09:25:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 61241-17:2005 - 2 - Foreword The text of document 31H/191/FDIS, future edition 1 of IEC 61241-17, prepared by SC 31H, Apparatus for use in the pres
18、ence of combustible dust, of IEC TC 31, Electrical apparatus for explosive atmospheres, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61241-17 on 2005-04-01. This European Standard, together with EN 61241-1-14:2004, supersedes EN 50281-1-2:1998 + corrigendum Decemb
19、er 1999 + A1:2002. 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) 2006-01-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 20
20、08-04-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61241-17:2005 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indica
21、ted: IEC 60079-0 NOTE Harmonized as EN 60079-0:2004 (not modified). IEC 60079-17 NOTE Harmonized as EN 60079-17:2003 (not modified). IEC 60204-1 NOTE Harmonized as EN 60204-1:1997 (not modified). IEC 61241-1 NOTE Harmonized as EN 61241-1:2004 (not modified). IEC 61241-18 NOTE Harmonized as EN 61241-
22、18:2004 (not modified). _ Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 09:25:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 EN 61241-17:2005 CONTENTS INTRODUCTION 4 1 Scope 5 2 Normative references .5 3 Terms and definitions .6 4 General requirements .8 4.1 Documentation 8 4.2 Qualificati
23、on of personnel 8 4.3 Inspections 8 4.4 Regular periodic inspections 10 4.5 Continuous supervision by skilled persons .10 4.6 Maintenance requirements .12 4.7 Environmental conditions .13 4.8 Isolation of apparatus 14 4.9 Earthing and equipotential bonding 16 4.10 Conditions of use.16 4.11 Movable a
24、pparatus and its connections 16 4.12 Inspection schedules (Tables 1 to 3) 16 5 Additional inspection schedule requirements .17 5.1 Type of protection “iD“ Intrinsic safety (see Table 2 and IEC 61241-11) .17 5.2 Type of protection “pD“ Pressurized enclosure (see Table 3 and IEC 61241-4) .20 5.3 Appar
25、atus used in zone 22 20 5.4 Types of protection “mD” (encapsulation) .20 6 Typical inspection schedules 21 Annex A (informative) Typical inspection procedure for periodic inspections24 Annex ZA (normative) Normative references to international publications with their corresponding European publicati
26、ons25 Table 1 Inspection schedule for Ex “tD“ installations .21 Table 2 Inspection schedule for Ex “iD“ installations .22 Table 3 Inspection schedule for Ex “pD“ installations 23 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 09:25:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 61241-17:20
27、05 4 INTRODUCTION Electrical installations in hazardous areas possess features specially designed to render them suitable for operations in such atmospheres. It is essential for reasons of safety in those areas that, throughout the life of such installations, the integrity of those special features
28、is preserved; they therefore require initial inspection and either a) regular periodic inspections thereafter, or b) continuous supervision by skilled personnel in accordance with this standard and, when necessary, maintenance. NOTE Correct functional operation of hazardous area installations does n
29、ot mean, and should not be interpreted as meaning, that the integrity of the special features referred to above is preserved. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 09:25:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 5 EN 61241-17:2005 ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF
30、COMBUSTIBLE DUST Part 17: Inspection and maintenance of electrical installations in hazardous areas (other than mines) 1 Scope This part of IEC 61241 is intended to be applied by users and covers factors directly related to the inspection and maintenance of electrical installations within hazardous
31、areas only. It does not include conventional requirements for electrical installations, nor the testing and certification of electrical apparatus. This standard supplements the requirements laid down in IEC 60364-6-61. NOTE The text is based on IEC 60079-17. This standard assumes effective housekeep
32、ing based on a system of cleaning for the plant. The principles of this standard can also be followed when combustible fibres or flyings may cause a hazard. This standard is intended to be applied where there can be a risk due to the presence of explosive dust/air mixtures or combustible dust layers
33、 under normal atmospheric conditions. It does not apply to underground mining areas, areas where a risk can arise due to the presence of hybrid mixtures, dusts of explosives that do not require atmospheric oxygen for combustion, or to pyrophoric substances. 2 Normative references The following refer
34、enced 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 amendments) applies. IEC 60079-14:2002, Electrical apparatus for explosive gas atmosphere
35、s Part 14: Electrical installations in hazardous areas (other than mines) IEC 60364-6-61: Electrical installations of buildings Part 6-61: Verification Initial verification IEC 61241-4, Electrical apparatus for use in the presence of combustible dust Part 4: Type of protection “pD” IEC 61241-10, Ele
36、ctrical apparatus for use in the presence of combustible dust Part 10: Classification of areas where combustible dusts are or may be present Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 09:25:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 61241-17:2005 6 IEC 61241-11, Electrical apparatu
37、s for use in the presence of combustible dust Part 11: Protection by intrinsic safety “iD”1 IEC 61241-14:2004, Electrical apparatus for use in the presence of combustible dust Part 14: Selection and installation 3 Terms and definitions For the purposes of this document, the following terms and defin
38、itions apply. 3.1 explosive atmosphere mixture with air, under atmospheric conditions, of flammable substances in the form of gas, vapour, mist or dust, in which after ignition, combustion spreads throughout the unconsumed mixture 3.2 explosive dust atmosphere mixture with air, under atmospheric con
39、ditions, of flammable substances in the form of dust, fibres or flyings in which, after ignition, combustion spreads throughout the unconsumed mixture 3.3 hazardous area area in which an explosive atmosphere is present, or may be expected to be present, in quantities such as to require special preca
40、utions for the construction, installation and use of apparatus NOTE For the purposes of this standard, an area is a three-dimensional region or space. 3.4 non-hazardous area area in which an explosive atmosphere is not expected to be present in quantities such as to require special precautions for t
41、he construction, installation and use of apparatus 3.5 maintenance combination of any actions carried out to retain an item in, or restore it to, conditions in which it is able to meet the requirements of the relevant specification and perform its required functions 3.6 inspection action comprising
42、careful scrutiny of an item carried out either without dismantling, or with the addition of partial dismantling as required, supplemented by means such as measurement, in order to arrive at a reliable conclusion as to the condition of an item 3.6.1 visual inspection inspection which identifies, with
43、out the use of access equipment or tools, those defects, such as missing bolts, which will be apparent to the eye _ 1 To be published. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 10 09:25:31 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 7 EN 61241-17:2005 3.6.2 close inspection inspection which
44、 encompasses those aspects covered by a visual inspection and, in addition, identifies those defects, such as loose bolts, which will be apparent only by the use of access equipment, for example steps, (where necessary), and tools NOTE Close inspections do not normally require the enclosure to be op
45、ened, or the equipment to be de- energized. 3.6.3 detailed inspection inspection which encompasses those aspects covered by a close inspection and, in addition, identifies those defects, such as loose terminations, which will only be apparent by opening the enclosure, and/or using, where necessary,
46、tools and test equipment 3.6.4 initial inspection inspection of all electrical apparatus, systems and installations before they are brought into service 3.6.5 periodic inspection inspection of all electrical apparatus, systems and installations carried out on a routine basis 3.6.6 sample inspection
47、inspection of a proportion of the electrical apparatus, systems and installations 3.7 continuous supervision frequent attendance, inspection, service, care and maintenance of the electrical installation by skilled personnel who have experience in the specific installation and its environment in orde
48、r to maintain the explosion protection features of the installation in satisfactory condition 3.8 skilled personnel people who meet the requirements for the qualification of personnel in accordance with 4.2 3.9 technical person with executive function person providing technical management of the ski
49、lled personnel, having adequate knowledge in the field of explosion protection, having familiarity with the local conditions, having familiarity with the installation and who has overall responsibility and control of the inspection systems for the electrical equipment within hazardous areas 3.10 associated apparatus electrical apparatus in which the circuits, or parts of circu