EN 60079-31:2014

Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"

IEC 60079-31:2013 is applicable to electrical equipment protected by enclosure and surface temperature limitation for use in explosive dust atmospheres. It specifies requirements for design, construction and testing of electrical equipment and Ex Components. 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 standard does not apply to dusts of explosives, which do not require atmospheric oxygen for combustion, or to pyrophoric substances. This standard does not apply to electrical equipment or Ex Components intended for use in underground parts of mines as well as those parts of surface installations of such mines endangered by firedamp and/or combustible dust. This standard does not take account of any risk due to an emission of flammable or toxic gas from the dust. Consideration of additional protective measures is required where the application of electrical equipment is in atmospheres, which can contain combustible dust as well as explosive gas, whether simultaneously or separately. Where the electrical equipment has to meet other environmental conditions, for example, protection against ingress of water and resistance to corrosion, additional measures can be necessary. The measures used should not adversely affect the integrity of the enclosure. This second edition cancels and replaces the first edition published in 2008. This edition constitutes a technical revision. The major technical changes include: - The marked maximum surface temperature shall be measured on the external surfaces of the enclosure and the surfaces of the internal components for equipment with types of protection 'ta'; - Additional protection for arcing and sparking parts for 'ta'; - Test for internal enclosure for level 'ta' added. Keywords: explosive dust atmospheres

Explosionsgefährdete Bereiche - Teil 31: Geräte-Staubexplosionsschutz durch Gehäuse "t"

Atmosphères explosives - Partie 31: Protection contre l’inflammation de poussières par enveloppe “t” relative au matériel

L'IEC 60079-31:2013 est applicable au matériel électrique protégé par enveloppe et limitation de la température de surface, pour une utilisation en atmosphère de poussière explosive. Elle spécifie les exigences de conception, de construction et d'essai pour le matériel électrique et les composants Ex. La présente norme complète et modifie les exigences générales de l'IEC 60079-0. Lorsqu'une exigence de la présente norme est en conflit avec une exigence de l'IEC 60079-0, l'exigence de la présente norme prévaut. La présente norme ne s'applique pas aux poussières d'explosifs qui ne nécessitent pas l'oxygène de l'air pour leur combustion, ni aux substances pyrotechniques. La présente norme ne s'applique ni au matériel électrique ni aux composants Ex destinés à une utilisation dans les parties souterraines des mines, ni aux parties des installations de surface des mines où il existe des risques de grisou et/ou de poussières combustibles. La présente norme ne prend en compte aucun risque résultant d'une émission de gaz inflammable ou toxique provenant de la poussière. La considération des mesures de protection complémentaires est exigée en cas d'utilisation d'un matériel électrique dans des atmosphères, pouvant contenir de la poussière combustible ainsi que du gaz explosif, que ce soit simultanément ou séparément. Lorsque le matériel électrique doit satisfaire à d'autres conditions environnementales, par exemple, la protection contre la pénétration de l'eau ou la résistance à la corrosion, des mesures supplémentaires peuvent être nécessaires. Il convient que les mesures utilisées ne dégradent pas l'intégrité de l'enveloppe. Cette deuxième édition annule et remplace la première édition parue en 2008. Cette édition constitue une révision technique. Les modifications techniques majeures suivantes: - La température maximale de surface marquée doit être mesurée sur les surfaces externes de l'enveloppe et les surfaces des composants internes pour les matériels avec des modes de protection 'ta'; - Protection supplémentaire pour les parties produisant des arcs et des étincelles pour 'ta'; - Protection supplémentaire pour les parties produisant des arcs et des étincelles pour 'ta'. Mots clés : atmosphère de poussière explosive

Eksplozivne atmosfere - 31. del: Zaščita opreme pred vžigom gorljivega prahu z ohišjem "t" (IEC 60079-31:2013)

Standard EN IEC 60079-31 velja za električno opremo, zaščiteno z ohišjem in omejitvijo površinske temperature, za uporabo v eksplozivnih prašnih atmosferah. Določa zahteve za projektiranje, gradnjo in preskušanje električnih naprav ter sestavnih delov s protieksplozijsko zaščito Ex. 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. Ta standard ne velja za prah eksplozivov, ki za zgorevanje ne potrebujejo atmosferskega kisika, ali za piroforne snovi. Ta standard ne velja za električno opremo ali sestavne dele s protieksplozijsko zaščito Ex, ki so namenjeni uporabi v podzemnih delih rudnikov in tiste dele površinskih instalacij takih rudnikov, ki jih ogroža jamski eksplozivni plin in/ali vnetljiv prah. Ta standard ne upošteva morebitnega tveganja zaradi emisije vnetljivega ali strupenega plina iz prahu. Kadar se električna oprema uporablja v atmosferah, ki lahko vsebujejo vnetljiv prah in eksplozivni plin, hkrati ali ločeno, je potrebno upoštevati dodatne zaščitne ukrepe. Če mora električna oprema izpolnjevati druge okoljske razmere, na primer zaščito pred vdorom vode in odpornost proti koroziji, so morda potrebni dodatni ukrepi. Uporabljeni ukrepi naj ne bi negativno vplivali na celovitost ohišja.

General Information

• Status: Published
• Publication Date: 10-Jul-2014
• Withdrawal Date: 31-Dec-2016
• ICS: 29.260.20 - Electrical apparatus for explosive atmospheres
• Technical Committee: CLC/TC 31 - Electrical apparatus for explosive atmospheres - General requirements
• Drafting Committee: IEC/TC 31 - Electrical apparatus for potentially explosive atmospheres
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 11-Jul-2014
• Completion Date: 11-Jul-2014
• Directive: 2014/34/EU - Directive 2014/34/EU Of The European Parliament And Of The Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to equipment and protective systems intended for use in potentially explosive atmospheres (recast)
• Directive: 94/9/EC - Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres
• Ref Project: SIST EN 60079-31:2014 - Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t" (IEC 60079-31:2013)

Relations

• Replaces: EN 60079-31:2009 - Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"
• Effective Date: 28-Jan-2023
• Replaced By: EN IEC 60079-31:2024 - Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure "t"
• Effective Date: 23-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60079-31:2014
01-september-2014
1DGRPHãþD
SIST EN 60079-31:2010
(NVSOR]LYQHDWPRVIHUHGHO=DãþLWDRSUHPHSUHGYåLJRPJRUOMLYHJDSUDKX]
RKLãMHPW,(&
Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure
"t" (IEC 60079-31:2013)
Explosionsgefährdete Bereiche - Teil 31: Geräte-Staubexplosionsschutz durch Gehäuse
„t“ (IEC 60079-31:2013)
Atmosphères explosives - Partie 31: Protection du matériel contre l'inflammation des
poussières par enveloppe "t" (CIE 60079-31:2013)
Ta slovenski standard je istoveten z: EN 60079-31:2014
ICS:
29.260.20 (OHNWULþQLDSDUDWL]D Electrical apparatus for
HNVSOR]LYQDR]UDþMD explosive atmospheres
SIST EN 60079-31:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60079-31:2014

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SIST EN 60079-31:2014


EUROPEAN STANDARD EN 60079-31

NORME EUROPÉENNE

EUROPÄISCHE NORM
July 2014
ICS 29.260.20 Supersedes EN 60079-31:2009
English Version
Explosive atmospheres - Part 31: Equipment dust ignition
protection by enclosure "t"
(IEC 60079-31:2013)
Atmosphères explosives - Partie 31: Protection contre Explosionsgefährdete Bereiche - Teil 31: Geräte-
l'inflammation de poussières par enveloppe "t" relative au Staubexplosionsschutz durch Gehäuse "t"
matériel (IEC 60079-31:2013)
(CEI 60079-31:2013)
This European Standard was approved by CENELEC on 2014-01-01. 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 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
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 60079-31:2014 E

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SIST EN 60079-31:2014
EN 60079-31:2014 - 2 -
Foreword
The text of document 31/1079/FDIS, future edition 2 of IEC 60079-31, prepared by IEC/TC 31 "Equipment
for explosive atmospheres" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC
as EN 60079-31:2014.

The following dates are fixed:
(dop) 2015-01-01
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2017-01-01
• latest date by which the national
standards conflicting with the
document have to be withdrawn

This document supersedes EN 60079-31:2009.

The State of the Art is included in Annex ZY “Significant changes between this European Standard and
EN 60079-31:2009”.

For the significant changes with respect to EN 60079-31:2009, see Annex ZY.

This standard is to be read in conjunction with EN 60079-0.

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.

For the relationship with EU Directive see informative Annex ZZ, which is an integral part of this document.

Endorsement notice
The text of the International Standard IEC 60079-31:2013 was approved by CENELEC as a European
Standard without any modification.

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SIST EN 60079-31:2014
- 3 - EN 60079-31:2014
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following documents, in whole or in
...

SLOVENSKI SIST EN 60079-31

STANDARD
september 2014











Eksplozivne atmosfere – 31. del: Zaščita opreme pred vžigom gorljivega
prahu z ohišjem "t" (IEC 60079-31:2013)

Explosive atmospheres – Part 31: Equipment dust ignition protection by
enclosure "t" (IEC 60079-31:2013)

Atmosphères explosives - Partie 31: Protection contrel' inflammation de
poussières par enveloppe "t" relative au matériel (CEI 60079-31:2013)


Explosionsgefährdete Bereiche - Teil 31: Geräte-Staubexplosionsschutz durch

Gehäuse „t“ (IEC 60079-31:2013)





















Referenčna oznaka

ICS 29.260.20 SIST EN 60079-31:2014 (sl)



Nadaljevanje na straneh II in III ter od 1 do 18



© 2014-12. Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60079-31 : 2014
NACIONALNI UVOD

Standard SIST EN 60079-31 (sl), Eksplozivne atmosfere – 31. del: Zaščita opreme pred vžigom
gorljivega prahu z ohišjem "t" (IEC 60079-31:2013), 2014, ima status slovenskega standarda in je
istoveten evropskemu standardu EN 60079-31 (en), Explosive atmospheres – Part 31: Equipment
dust ignition protection by enclosure "t" (IEC 60079-31:2013), 2014-07.

Ta standard nadmešča SIST EN 60079-31:2010.

NACIONALNI PREDGOVOR

Evropski standard EN 60079-31:2014 je pripravil tehnični pododbor Mednarodne elektrotehniške
komisije IEC/31 Oprema za eksplozivne atmosfere, vzporedno je standard potrdil tehnični odbor
Evropskega komiteja za standardizacijo v elektrotehniki CENELEC/TC 31 Električna oprema za
eksplozijske atmosfere.

Slovenski standard SIST EN 60079-31:2014 je prevod evropskega standarda EN 60079-31:2014. V
primeru spora glede besedila slovenskega prevoda v tem standardu je odločilen izvirni evropski
standard v angleškem jeziku. Slovensko izdajo standarda je potrdil tehnični odbor SIST/TC EXP
Električni aparati za eksplozivne atmosfere.

Odločitev za privzem tega standarda je 24. julija 2014 sprejel tehnični odbor SIST/TC EXP Električni
aparati za eksplozivne atmosfere.

ZVEZA Z NACIONALNIMI STANDARDI

S privzemom tega evropskega standarda veljajo za omejeni namen referenčnih standardov vsi
standardi, navedeni v izvirniku, razen standardov, ki so že sprejeti v nacionalno standardizacijo:
SIST EN 60079-0:2012 Eksplozivne atmosfere – 0. del: Oprema – Splošne zahteve (IEC 60079-
0:2011, spremenjen)
SIST EN 60127 (skupina) Miniaturne varovalke (IEC 60127)
SIST EN 60691  Termični taljivi vložki – Zahteve in navodilo za uporabo (IEC 60691)

OSNOVA ZA IZDAJO STANDARDA

– privzem standarda EN 60079-31:2014

PREDHODNA IZDAJA

– SIST EN 60079-31:2010, Eksplozivne atmosfere - 31. del: Zaščita opreme pred vžigom
gorljivega prahu z ohišjem "t" (IEC 60079-31:2008 + corrigendum Mar. 2009)

OPOMBE

– Povsod, kjer se v besedilu standarda uporablja izraz “evropski standard”, v SIST EN
60079-31:2014 to pomeni “slovenski standard”.

– Nacionalni uvod in nacionalni predgovor nista sestavni del standarda.

II

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SIST EN 60079-31 : 2014
– Ta nacionalni dokument je istoveten EN 60079-31:2014 in je objavljen z dovoljenjem

  CEN /CENELEC
  Upravni center
  Avenue Marnix 17
B-1000 Bruselj

This national document is identical with EN 60079-31:2014 and is published with the
permission of

  CEN /CENELEC
  Management Centre
  Avenue Marnix 17
B -1000 Brussels












































III

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SIST EN 60079-31 : 2014






























(Prazna stran)
IV

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EVROPSKI STANDARD EN 60079-31
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM julij 2014
ICS 29.260.20 Nadomešča EN 60079-31:2009




Slovenska izdaja

Eksplozivne atmosfere – 31. del: Zaščita opreme pred vžigom gorljivega prahu
z ohišjem "t" (IEC 60079-31:2013)

Explosive atmospheres – Atmosphères explosives - Partie 31: Explosionsgefährdete Bereiche -
Part 31: Equipment dust ignition Protection contrel' inflammation de Teil 31: Geräte-
protection by enclosure "t" poussières par enveloppe "t" relative au Staubexplosionsschutz durch
(IEC 60079-31:2013) matériel (CEI 60079-31:2013) Gehäuse „t“ (IEC 60079-31:2013)




Ta evropski standard je CENELEC sprejel 1. januarja 2014. Člani CENELEC morajo izpolnjevati
notranje predpise CEN/CENELEC, ki določajo pogoje, pod katerimi dobi ta standard status
nacionalnega standarda brez kakršnih koli sprememb.
Najnovejši seznami teh nacionalnih standardov in njihovi bibliografski podatki se na zahtevo lahko
dobijo pri Upravnem centru CEN-CENELEC ali katerem koli članu CENELEC.
Ta evropski st
...