EN 61241-11:2006
(Main)Electrical apparatus for use in the presence of combustible dust - Part 11: Protection by intrinsic safety "iD"
Electrical apparatus for use in the presence of combustible dust - Part 11: Protection by intrinsic safety "iD"
This part of EN 61241 specifies requirements for the construction and testing of intrinsically safe apparatus intended for use in potentially explosive dust cloud or dust layer environments and for associated apparatus that is intended for connection to intrinsically safe circuits which enter such environments.
Elektrische Betriebsmittel zur Verwendung in Bereichen mit brennbarem Staub - Teil 11: Schutz durch Eigensicherheit "iD"
Matériels électriques pour utilisation en présence de poussières combustibles - Partie 11: Protection par sécurité intrinsèque "iD"
Cette partie de la EN 61241 spécifie les exigences relatives à la construction et aux essais des matériels à sécurité intrinsèque destinés à être utilisés dans des environnements de nuage ou de couches de poussières combustibles, et des matériels associés destinés à être connectés à des matériels à sécurité intrinsèque qui entrent dans de tels environnements.
Električne naprave za uporabo v prisotnosti gorljivega prahu - 11. del: Zaščita z lastno varnostjo “iD” (IEC 61241-11:2005 s popravkom feb. 2006)
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Standards Content (Sample)
STANDARD(OHNWULþQHQDSUDYH]DXSRUDERYSULVRWQRVWLJRUOMLYHJDSUDKXGHO=DãþLWDz lastno varnostjo “iD” (IEC 61241-11:2005 s popravkom feb. 2006)Electrical apparatus for use in the presence of combustible dust - Part 11: Protection by intrinsic safety "iD" (IEC 61241-11:2005 + corrigendum Feb. 2006) !#"$%&'& *+5HIHUHQþQDãWHYLONDSIST EN 61241-11:2007(en)ICS29.260.20
EUROPEAN STANDARD EN 61241-11 NORME EUROPÉENNE
EUROPÄISCHE NORM December 2006
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2006 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61241-11:2006 E
ICS 29.260.20
English version
Electrical apparatus for use in the presence of combustible dust
Part 11: Protection by intrinsic safety "iD" (IEC 61241-11:2005 + corrigendum February 2006)
Matériels électriques pour utilisation en présence de poussières combustibles
Partie 11: Protection par sécurité intrinsèque "iD" (CEI 61241-11:2005
+ corrigendum février 2006)
Elektrische Betriebsmittel zur Verwendung in Bereichen mit brennbarem Staub
Teil 11: Schutz durch Eigensicherheit "iD"(IEC 61241-11:2005
+ Corrigendum Februar 2006)
This European Standard was approved by CENELEC on 2005-11-01. 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 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 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, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
at national level by publication of an identical
national standard or by endorsement
(dop)
2007-07-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2008-11-01 This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and covers essential requirements of EC Directive 94/9/EC. See Annex ZZ. Annexes ZA and ZZ have been added by CENELEC. __________
Endorsement notice The text of the International Standard IEC 61241-11:2005 and its corrigendum February 2006 was approved by CENELEC as a European Standard without any modification. __________
- 3 - EN 61241-11:2006
Annex ZA (normative)
Normative references to international publications with their corresponding European publications
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 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 60079-0 (mod) - 1) Electrical apparatus for explosive gas atmospheres
Part 0: General requirements EN 60079-0 2006 2)
IEC 60079-11
- 1) Explosive atmospheres
Part 11: Equipment protection by intrinsic safety "i" EN 60079-11 200X 3)
IEC 60079-25 - 1) Electrical apparatus for explosive gas atmospheres
Part 25: Intrinsically safe systems EN 60079-25 + corr. April
2004 2)2006
IEC 60529 - 1) Degrees of protection provided by
enclosures (IP Code) EN 60529 + corr. May
1991 2)1993
IEC 61241-0 (mod)
- 1) Electrical apparatus for use in the presence of combustible dust
Part 0: General requirements EN 61241-0 2006 2)
IEC 61241-1 - 1) Electrical apparatus for use in the presence of combustible dust
Part 1: Protection by enclosures "tD" EN 61241-1 + corr. December
2004 2)2006
1) Undated reference.
2) Valid edition at date of issue.
3) To be published.
Coverage of Essential Requirements of EC Directives This European Standard has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association and within its scope the standard covers only the following essential requirements out of those given in Annex II of the EC Directive 94/9/EC: – ER 1.0.1, ER 1.0.2, ER 1.0.4, ER 1.0.5 (partly), ER 1.0.6 (partly) – ER 1.1 (partly) – ER 1.2.1 (partly), ER 1.2.2 (partly), ER 1.2.4 to ER 1.2.6 – ER 1.3.1 – ER 1.6.4 – ER 2.1.2, ER 2.1.2.1 to ER 2.1.2.2 – ER 2.2.2.1, ER 2.2.2.2 Compliance with this standard provides one means of conformity with the specified essential requirements of the Directive concerned. WARNING: Other requirements and other EC Directives may be applicable to the products falling within the scope of this standard.
NORME INTERNATIONALECEIIEC INTERNATIONAL STANDARD 61241-11Première éditionFirst edition2005-10 Matériels électriques pour utilisation en présence de poussières combustibles – Partie 11: Protection par sécurité intrinsèque «iD»
Electrical apparatus for use in the presence
of combustible dust – Part 11: Protection by intrinsic safety 'iD'
Pour prix, voir catalogue en vigueur For price, see current catalogue IEC 2005
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Web: www.iec.ch CODE PRIX PRICE CODE Q Commission Electrotechnique InternationaleInternational Electrotechnical Commission
61241-11 IEC:2005 – 3 – CONTENTS FOREWORD.5 INTRODUCTION.11 1 Scope.15 2 Normative references.19 3 Terms and definitions.19 4 Grouping and classification of intrinsically safe apparatus and associated apparatus.19 5 Categories of electrical apparatus.19 6 Apparatus construction.21 6.1 Enclosures.21 6.2 Temperatures of apparatus immersed in dust.21 6.3 Facilities for connection of external circuits.23 6.4 Separation distances.25 6.5 Protection against polarity reversal.25 6.6 Earth conductors, connections and terminals.25 6.7 Encapsulation used for exclusion of potentially explosive atmosphere.25 7 Components on which intrinsic safety depends.25 7.1 Rating of components.25 7.2 Connectors for internal connections, plug-in cards and components.25 7.3 Fuses.25 7.4 Primary and secondary cells and batteries.25 7.5 Semiconductors.25 7.6 Failure of components and connections.25 7.7 Piezo-electric devices.25 8 Infallible components, infallible assemblies of components and infallible connections.25 9 Diode safety barriers.27 10 Type verifications, assessments and type tests.27 10.1 Spark ignition assessment.27 10.2 Temperature tests.27 10.3 Voltage tests.27 10.4 Small component ignition test.27 10.5 Determination of parameters of loosely specified components.27 10.6 Tests for cells and batteries.27 10.7 Mechanical test.27 10.8 Tests for apparatus containing piezoelectric devices.29 10.9 Type tests for diode safety barriers and safety shunts.29 10.10 Cable pull test.29 11 Routine verifications and tests.29 12 Marking.29 12.1 General.29 12.2 Marking of connection facilities.31 13 Documentation.33
Annex A (normative)
See Annex B of IEC 60079-11.35 Annex B (informative)
See Annex C of IEC 60079-11.35 Annex C (normative)
See Annex D of IEC 60079-11.35
61241-11 IEC:2005 – 5 – INTERNATIONAL ELECTROTECHNICAL COMMISSION ___________
ELECTRICAL APPARATUS FOR USE IN THE PRESENCE OF COMBUSTIBLE DUST –
Part 11: Protection by intrinsic safety ‘iD’
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 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) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the 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 nearly 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 sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition 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 natu
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