EN 60079-7:2015
(Main)Explosive atmospheres - Part 7: Equipment protection by increased safety "e"
Explosive atmospheres - Part 7: Equipment protection by increased safety "e"
IEC 60079-7:2015(E) specifies the requirements for the design, construction, testing and marking of electrical equipment and Ex Components with type of protection increased safety "e" intended for use in explosive gas atmospheres. Electrical equipment and Ex Components of type of protection increased safety "e" are either: - Level of Protection "eb" (EPL "Mb" or "Gb"); - or Level of Protection "ec" (EPL "Gc"). Level of Protection "eb" applies to equipment or Ex Components, including their connections, conductors, windings, lamps, and batteries; but not including semiconductors or electrolytic capacitors. Level of Protection "ec" applies to equipment or Ex Components, including their connections, conductors, windings, lamps, and batteries; and also including semiconductors and electrolytic capacitors. The requirements of this standard apply to both Levels of Protection unless otherwise stated. For Level of Protection "eb", this standard applies to electrical equipment where the rated voltage does not exceed 11 kV r.m.s., a.c. or d.c. For Level of Protection "ec", this standard applies to electrical equipment where the rated voltage does not exceed 15 kV r.m.s., a.c. or d.c. This standard supplements and modifies the general requirements of IEC 60079-0. Where a requirement of this standard conflicts with a requirement of IEC 60079-0, the requirement of this standard takes precedence. This fifth edition cancels and replaces the fourth edition published in 2006, and constitutes a technical revision. Refer to the Foreword of the document for a complete listing of the technical changes between edition 5.0 and previous edition of the document. Keywords: electrical equipment and Ex Components with type of protection increased safety "e" intended for use in explosive gas atmospheres.
Explosionsgefährdete Bereiche - Teil 7: Geräteschutz durch erhöhte Sicherheit "e"
Atmosphères explosives - Partie 7: Protection du matériel par sécurité augmentée "e"
L'IEC 60079-7:2015 spécifie les exigences spécifiques de conception, de construction, d'essais et de marquage du matériel électrique et des composants Ex avec mode de protection de sécurité augmentée "e" destinés à être utilisés dans les atmosphères explosives gazeuses. Le matériel électrique et les composants Ex de mode de protection de sécurité augmentée "e" sont: - d'un niveau de protection "eb" (EPL "Mb" ou "Gb"); ou - d'un niveau de protection "ec" (EPL "Gc"). Le niveau de protection "eb" s'applique au matériel ou aux composants Ex, y compris leurs connexions, conducteurs, enroulements, lampes et batteries; mais n'inclut pas les semi-conducteurs ou les condensateurs électrolytiques. Le niveau de protection "ec" s'applique au matériel ou aux composants Ex, y compris leurs connexions, conducteurs, enroulements, lampes et batteries; cela inclut également les semi-conducteurs ou les condensateurs électrolytiques. Sauf indication contraire, les exigences de la présente norme s'appliquent aux deux niveaux de protection. Pour le niveau de protection "eb", la présente norme s'applique au matériel électrique si la tension assignée n'est pas supérieure à une valeur efficace de 11 kV, c.a. ou c.c. Pour le niveau de protection "ec", la présente norme s'applique au matériel électrique si la tension assignée n'est pas supérieure à une valeur efficace de 15 kV, c.a. ou c.c. La présente norme complète et modifie les exigences générales de l'IEC 60079-0. Lorsqu'une exigence de la présente norme entre en conflit avec une exigence de l'IEC 60079-0, l'exigence de la présente norme prévaut. Cette cinquième édition annule et remplace la quatrième édition parue en 2006. Cette édition constitue une révision technique. Reportez-vous à l'avant-propos du document pour une liste complète des modifications techniques entre l'édition 5.0 et édition précédente du document. Mots clés: matériel électrique et des composants Ex avec mode de protection de sécurité augmentée "e" destinés à être utilisés dans les atmosphères explosives gazeuses
Eksplozivne atmosfere - 7. del: Zaščita opreme s povečano varnostjo "e" (IEC 60079-7:2015)
Ta del standarda IEC 60079 določa zahteve za načrtovanje, konstrukcijo, preskušanje in označevanje električne opreme in komponent EX z zaščito s povečano varnostjo »e«, ki je namenjena uporabi v eksplozivnih plinskih atmosferah.
Električna oprema in komponente Ex z zaščito s povečano varnostjo »e« imajo:
a) nivo zaščite »eb« (EPL »Mb« ali »Gb«) ali
b) nivo zaščite »ec« (EPL »Gc«)
Nivo zaščite »eb« velja za opremo ali komponente Ex, vključno z njihovimi priključki, vodniki, navitjem, sijalkami in baterijami, pri čemer so polprevodniški elementi ali elektrolitski kondenzatorji izključeni.
OPOMBA 1: Uporaba elektronskih komponent, kot so polprevodniški elementi ali elektrolitski kondenzatorji, ni vključena v nivo zaščite »eb«, saj lahko pričakovane okvare povzročijo prekomerne temperature ali obloke in iskre, če notranje ločilne razdalje niso upoštevane. V splošnem ni praktično vzdrževati ločilnih razdalj in delovanja elektronske komponente.
Nivo zaščite »ec« velja za opremo ali komponente Ex, vključno z njihovimi priključki, vodniki, navitjem, sijalkami in baterijami ter tudi polprevodniškimi elementi ali elektrolitskimi kondenzatorji.
OPOMBA 2: Uporaba elektronskih komponent, kot so polprevodniški elementi ali elektrolitski kondenzatorji, je dovoljena pri nivoju zaščite »ec«, saj je njihovo delovanje preverjeno tako v normalnih pogojih kot pri običajnih pričakovanih dogodkih, tako da ni pričakovati prekomerne temperature ali oblokov in isker. Ker zahteve za ločilne razdalje ne veljajo za njihovo notranjo zgradbo, so komercialno dostopne elektronske komponente v splošnem primerne, če so njihove zunanje ločilne razdalje ustrezne.
Zahteve tega standarda veljajo za oba nivoja zaščite, razen če je drugače navedeno. V okviru nivoja zaščite »eb« se ta standard uporablja za električno opremo z efektivno izmenično ali enosmerno napetostjo do 11 kV.
V okviru nivoja zaščite »ec« se ta standard uporablja za električno opremo, katere nazivna napetost ne presega 15 kV (efektivna vrednost, izmenični tok ali enosmerni tok).
OPOMBA 3: Kratkostični tok, ki teče prek povezav s povečano varnostjo glavnega tokokroga, se ne obravnava kot znatno tveganje za vžig eksplozivne plinske atmosfere zaradi premikanja povezav, ki je posledica mehanskih obremenitev, ki jih tak tok povzroča. Običajni industrijski standardi zahtevajo, da se upošteva vplive kratkočasnega visokega toka na varnost povezav. Prisotnost eksplozivne plinske atmosfere nima negativnega vpliva na varnost povezave.
OPOMBA 4: Kakršnegakoli kratkoročnega odklona toplote, ki je posledica odklona električnega toka nad običajnim nazivnim tokom, kot na primer pri zagonu motorjev, se ne obravnava kot znatno tveganje za vžig eksplozivne plinske atmosfere zaradi relativno kratkega trajanja dogodka in konvekcije,
do katere pride pri dogodku.
OPOMBA 5: Visokonapetostne povezave in z njimi povezane napeljave (nad 1 kV) so lahko občutljive na povečano delno razelektritev, ki so lahko vir vžiga. Običajno so podani povečani odmiki od ozemljenih površin ali drugih povezav in ustrezne metode za zmanjšanje visokih napetosti na priključkih.
Ta standard dopolnjuje in spreminja splošne zahteve standarda IEC 60079-0. Kadar je zahteva iz tega standarda v nasprotju z zahtevo iz standarda IEC 60079-0, ima prednost zahteva iz tega standarda.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60079-7:2016
01-marec-2016
1DGRPHãþD
SIST EN 60079-7:2007
(NVSOR]LYQHDWPRVIHUHGHO =DãþLWDRSUHPHVSRYHþDQRYDUQRVWMRH ,(&
Explosive atmospheres -- Part 7: Equipment protection by increased safety "e" (IEC
60079-7:2015)
Explosionsfähige Atmosphäre - Teil 7: Geräteschutz durch erhöhte Sicherheit "e" (IEC
60079-7:2015)
Atmosphères explosives -- Partie 7: Protection de l'équipement par sécurité augmentée
"e" (IEC 60079-7:2015)
Ta slovenski standard je istoveten z: EN 60079-7:2015
ICS:
29.260.20 (OHNWULþQLDSDUDWL]D Electrical apparatus for
HNVSOR]LYQDR]UDþMD explosive atmospheres
SIST EN 60079-7:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60079-7:2016
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SIST EN 60079-7:2016
EUROPEAN STANDARD EN 60079-7
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2015
ICS 29.260.20 Supersedes EN 60079-7:2007
English Version
Explosive atmospheres - Part 7: Equipment protection by
increased safety "e"
(IEC 60079-7:2015)
Atmosphères explosives - Partie 7: Protection de Explosionsfähige Atmosphäre - Teil 7: Geräteschutz durch
l'équipement par sécurité augmentée "e" erhöhte Sicherheit "e"
(IEC 60079-7:2015) (IEC 60079-7:2015)
This European Standard was approved by CENELEC on 2015-07-31. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
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 Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60079-7:2015 E
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SIST EN 60079-7:2016
EN 60079-7:2015 (E)
European foreword
The text of document 31/1182/FDIS, future edition 5 of IEC 60079-7, prepared by
IEC/TC 31 "Equipment for explosive atmospheres" was submitted to the IEC-CENELEC parallel vote
and approved by CENELEC as EN 60079-7:2015.
The following dates are fixed:
(dop) 2016-06-11
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2018-07-31
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60079-7:2007.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
Endorsement notice
The text of the International Standard IEC 60079-7:2015 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 indicated:
IEC/TS 60034-17 NOTE Harmonized as CLC/TS 60034-17.
IEC 60034-18-41 NOTE Harmonized as EN 60034-18-41.
IEC/TS 60034-25 NOTE Harmonized as CLC/TS 60034-25.
IEC 60079-14 NOTE Harmonized as EN 60079-14.
IEC 60079-17 NOTE Harmonized as EN 60079-17.
IEC 60079-18 NOTE Harmonized as EN 60079-18.
IEC 60079-20-1 NOTE Harmonized as EN 60079-20-1.
IEC 60079-28 NOTE Harmonized as EN 60079-28.
IEC 60079-29-2 NOTE Harmonized as EN 60079-29-2.
IEC 60079-30-2 NOTE Harmonized as EN 60079-30-2.
IEC 60079-35-1 NOTE Harmonized as EN 600
...
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