SIST EN ISO/IEC 80079-38:2017
(Main)Explosive atmospheres - Part 38: Equipment and components in explosive atmospheres in underground mines (ISO/IEC 80079-38:2016)
Explosive atmospheres - Part 38: Equipment and components in explosive atmospheres in underground mines (ISO/IEC 80079-38:2016)
This International Standard specifies the explosion protection requirements for the design, construction, assessment and information for use (maintenance, repair, marking) of equipment that 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. The standard atmospheric conditions (relating to the explosion characteristics
of the atmosphere) under which it may be assumed that equipment can be operated are:
temperature -20 °C to +60 °C;
pressure 80 kPa (0,8 bar) to 110 kPa (1,1 bar); and
air with normal oxygen content, typically 21 % v/v.
This International Standard applies for equipment and components according to EPL Mb to be used in explosive atmospheres containing firedamp and/or combustible dust.
Explosionsfähige Atmosphären - Teil 38: Geräte und Komponenten in explosionsfähigen Atmosphären in untertägigen Bergwerken (ISO/IEC 80079-38:2016)
Diese Internationale Norm legt die explosionsschutztechnischen Anforderungen an die Konzeption, den Bau, die Bewertung und die Benutzerinformation (Instandhaltung, Reparatur, Kennzeichnung) der Geräte fest, die entweder Einzelstücke sein können oder Baugruppen bilden. Dies schließt Geräte und Komponenten ein, die von einem einzelnen Lieferanten in Verkehr gebracht werden und die für die Verwendung in Bergwerken vorgesehen sind, die durch Grubengas und/oder brennbare Stäube gefährdet werden können. Die atmosphärischen Normbedingungen (bezogen auf die Explosionseigenschaften der Atmosphäre), unter denen angenommen werden kann, dass die Geräte betrieben werden, sind:
- Temperatur -20 °C bis +60 °C,
- Luftdruck 80 kPa (0,8 bar) bis 110 kPa (1,1 bar), und
- Luft mit einem Sauerstoffgehalt von üblicherweise 21 % Volumenanteile.
Diese Internationale Norm gilt für Geräte und Komponenten nach EPL Mb zur Verwendung in explosionsfähigen Atmosphären, die Grubengas und/oder brennbarem Staub enthalten.
ANMERKUNG In einigen Ländern könnte es Unterschiede hinsichtlich verschiedener Einteilungen geben, z. B. ist Mb ähnlich der Kategorie M 2 in der Europäischen Union.
Es ist notwendig, den äußeren Bedingungen der Geräte Rechnung zu tragen, die die Gefährdung und die daraus hervorgehenden Schutzmaßnahmen beeinflussen können. Diese Maßnahmen können Bewetterung, Gasmessung und Gasabsaugung beinhalten.
Diese Internationale Norm behandelt auch die Vermeidung von Zündungen von explosionsfähigen Atmosphären durch Brände (oder Glimmbrände) von brennbaren Materialien wie Gewebefasern, Kunststoff-O-Ringen, Gummidichtungen, Schmierölen oder -fetten, die in der Konstruktion benötigt werden, wenn solche Teile eine Zündquelle sein könnten. Z. B. kann Reibungshitze durch einen mechanischen Fehler oder rotierende Wellenlager den Plastikkäfig, die Plastikdichtung selbst oder das Schmierfett entzünden.
Anforderungen und Prüfverfahren an die druckfeste Kapselung des Motors und die Flammensperren im Lufteinlass- und Abgassystem sind nicht Teil dieser Internationalen Norm.
Detaillierte Anforderungen und Prüfverfahren für den Brandschutz von Fördergurten sind nicht Teil dieser Internationalen Norm.
Atmosphères explosives - Partie 38: Appareils et composants destinés à être utilisés dans les mines souterraines grisouteuses (ISO/IEC 80079-38:2016)
ISO/IEC 80079-38:2016 est publiée en tant que norme sous double logo et spécifie les exigences relatives aux techniques de protection contre l'explosion au niveau de la conception, de la construction, de l'évaluation et des informations sur l'utilisation (maintenance, réparation et marquage) des appareils qui peuvent être des éléments individuels ou faire partie d'un assemblage. Ces appareils comprennent les machines et les composants prévus pour être utilisés dans les mines pouvant présenter des risques liés au grisou et/ou poussières combustibles. Les conditions atmosphériques normales (relatives aux caractéristiques de l'explosion de l'atmosphère), selon lesquelles il peut être pris pour hypothèse que les appareils peuvent fonctionner, sont les suivantes:
- température de -20 °C à 60 °C;
- pression de 80 kPa (0,8 bar) à 110 kPa (1,1 bar);
- et air à teneur normale en oxygène, généralement, typiquement 21 % v/v. La présente partie de l'ISO/IEC 80079 s'applique aux appareils et aux composants selon EPL Mb destinés à être utilisés en atmosphères explosives contenant le grisou et/ou les poussières combustibles. Les exigences de la présente norme, de l'ISO 80079-36 et de l'IEC 60079-0 s'appliquent aux appareils et aux composants selon EPL Ma. Les conditions externes doivent être prises en considération pour les appareils qui peuvent affecter les dangers et les mesures de protection qui en résultent. Ces mesures peuvent
inclure la ventilation, la détection de gaz et le captage de gaz. La présente partie de l'ISO/IEC 80079 traite également de la prévention des inflammations des atmosphères explosives provoquées par la combustion (ou le feu couvant) de matériaux combustibles tels que les fibres textiles, les joints toriques en matières synthétiques, les joints d'étanchéité en caoutchouc, les huiles et graisses de lubrification qui sont nécessaires à l'appareil lorsque ces éléments pourraient représenter une source d'inflammation. L'échauffement provoqué par friction par exemple en raison d'une défaillance d'ordre mécanique ou du palier d'arbre peut enflammer la cage en plastique, le joint en plastique lui-même ou le lubrifiant. Les exigences détaillées et les procédures d'essai pour la protection contre l'incendie des courroies transporteuses ne font pas partie de la présente partie de l'ISO/IEC 80079.
Mots clés: utilisés dans les mines souterraines grisouteuses, poussières combustibles
Eksplozivne atmosfere - 38. del: Oprema in komponente, namenjene za uporabo v eksplozivnih atmosferah v podzemnih rudnikih (ISO/IEC 80079-38:2016)
Ta mednarodni standard določa zahteve za zaščito pred eksplozijami za načrtovanje, izdelavo, ocenjevanje in podajanje informacij za uporabo (vzdrževanje, popravila, označbe) opreme v obliki posamezne enote ali sklopa. To vključuje stroje in sestavne dele, ki jih postavi na tržišče posamezen dobavitelj in ki so namenjeni za uporabo v rudnikih, izpostavljenih jamskemu eksplozivnemu plinu in/ali gorljivemu prahu. Standardni atmosferski pogoji (povezani z eksplozijskimi značilnostmi atmosfere), pod katerimi se lahko sklepa, da je mogoče električno opremo uporabljati, so: temperature od –20 °C do 60 °C; tlak od 80 kPa (0,8 bara) do 110 kPa (1,1 bara); zrak z normalno vsebnostjo kisika, običajno 21 % V/V. Ta mednarodni standard se uporablja za opremo in sestavne dele v skladu z ravnmi zaščite EPL Mb, namenjene za uporabo v eksplozivnih atmosferah, ki vsebujejo jamski eksplozivni plin in/ali vnetljiv prah.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO/IEC 80079-38:2017
01-april-2017
1DGRPHãþD
SIST EN 1710:2006+A1:2008
SIST EN 1710:2006+A1:2008/AC:2010
Eksplozivne atmosfere - 38. del: Oprema in komponente, namenjene za uporabo v
eksplozivnih atmosferah v podzemnih rudnikih (ISO/IEC 80079-38:2016)
Explosive atmospheres - Part 38: Equipment and components in explosive atmospheres
in underground mines (ISO/IEC 80079-38:2016)
Explosionsfähige Atmosphären - Teil 38: Geräte und Komponenten in explosionsfähigen
Atmosphären in untertägigen Bergwerken (ISO/IEC 80079-38:2016)
Atmosphères explosives - Partie 38: Appareils et composants destinés à être utilisés
dans les mines souterraines grisouteuses (ISO/IEC 80079-38:2016)
Ta slovenski standard je istoveten z: EN ISO/IEC 80079-38:2016
ICS:
29.260.20 (OHNWULþQLDSDUDWL]D Electrical apparatus for
HNVSOR]LYQDR]UDþMD explosive atmospheres
73.100.30 Oprema za vrtanje in Equipment for drilling and
izkopavanje mine excavation
SIST EN ISO/IEC 80079-38:2017 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO/IEC 80079-38:2017
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SIST EN ISO/IEC 80079-38:2017
EN ISO/IEC 80079-38
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2016
EUROPÄISCHE NORM
ICS 29.260.20 Supersedes EN 1710:2005+A1:2008
English Version
Explosive atmospheres - Part 38: Equipment and
components in explosive atmospheres in underground
mines (ISO/IEC 80079-38:2016)
Atmosphères explosives - Partie 38: Appareils et Explosionsfähige Atmosphären - Teil 38: Geräte und
composants destinés à être utilisés dans les mines Komponenten in explosionsfähigen Atmosphären in
souterraines grisouteuses (ISO/IEC 80079-38:2016) untertägigen Bergwerken (ISO/IEC 80079-38:2016)
This European Standard was approved by CEN on 18 February 2016.
CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO/IEC 80079-38:2016 E
worldwide for CEN national Members.
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SIST EN ISO/IEC 80079-38:2017
EN ISO/IEC 80079-38:2016 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2014/34/EU . 4
Annex ZB (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC . 6
Annex ZC (informative) Significant technical changes between this document and the
previous edition of this European Standard . 7
2
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SIST EN ISO/IEC 80079-38:2017
EN ISO/IEC 80079-38:2016 (E)
European foreword
This document (EN ISO/IEC 80079-38:2016) has been prepared by subcommittee 31M: Nonelectrical
equipment and protective systems for explosive atmospheres, of IEC technical committee 31:
Equipment for explosive atmospheres" in collaboration with Technical Committee CEN/TC 305
“Potentially explosive atmospheres - Explosion prevention and protection” the secretariat of which is
held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2017, and conflicting national standards shall be
withdrawn at the latest by June 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
The significant changes with respect to EN 1710+A1:2008 are included in Annex ZC “Significant changes
between this European Standard and EN 1710+A1:2008".
This document supersedes EN 1710:2005+A1:2008.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s) 2014/34/EU
and 2006/42/EC.
For relationship with EU Directives, see informative Annex ZA and ZB, 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 implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO/IEC 80079-38:2016 has been approved by CEN as EN ISO/IEC 80079-38:2016 without
any modification.
3
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SIST EN ISO/IEC 80079-38:2017
EN ISO/IEC 80079-38:2016 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2014/34/EU
This European Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association to provide a means of conforming to Essential
Requirements of the New Approach Directive 2014/34/EU
Once this standard is cited in the Official Journal of the European Union under that Directive and has
been implemented as a national standard in at least one Member State, compliance with the clauses of
this standard given in Table ZA.1 confers, within the limits of the scope of this standard, a presumption
of conformity with the corresponding Essential Requirements of that Directive and associated EFTA
regulations.
Table ZA.1 — Correspondence between this European Standard and Directive 2014/34/EU
Clause(s)/sub-clause(s) of this Essential Requirements (ERs)
Qualifying remarks/Notes
EN of Directive 2014/34/EU
4; 5 1.0.1 EN ISO 80079-36
4; 5 1.0.2
6.2; 6.3 1.0.3
4.1; 5.1.2; 5.1.3 1.0.4 EN ISO 80079-36
8 1.0.5 EN ISO 80079-36
7.2 1.0.6
4; 4.1; 5.3 1.1.1 EN ISO 80079-36, EN 60079-0
4.1; 4.3; 5.4; 5.5; 5.6; 5.7; 5.9 1.1.2 EN ISO 80079-36, EN 60079-0,
IEC 60204-1
4.1 1.1.3 EN ISO 80079-36, EN 60079-0
4.1 1.2.1
4 1.2.4
4 1.2.5
7.1 1.2.6 EN ISO 80079-36, EN 60079-0
1; 4.4; 5.3.1.7; 5.8 1.2.7 a) EN 60204-1, EN 60204-11 and
standards supporting Directive
98/37/EC deal with this subject
1; 4.1; 4.2.3; 4.4.3.1; 5.4.2; 5.5; 1.2.7 b)
5.6; 5.7; 5.9; 6.1; C.8; C.9; C.10
1; 4.2; 6.2 1.2.7 c) EN ISO 80079-36
1; 4.4.3; 5.8 1.2.7 d)
4.1; 4.2; 4.3; 5.3.1.7; 5.4.1; 5.4.2; 1.2.8
4
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SIST EN ISO/IEC 80079-38:2017
EN ISO/IEC 80079-38:2016 (E)
Clause(s)/sub-clause(s) of this Essential Requirements (ERs)
Qualifying remarks/Notes
EN of Directive 2014/34/EU
5.4.6
4.3; 4.4 1.2.9 EN ISO 80079-36, EN 60079-1
1; 4.1; 4.2.3; 4.4.3.1; 5.1; 5.4.2; 1.3.1
5.4.3; 5.5; 5.6; 5.7; 6.1; 7.2
4.1; 4.4.6.2; 5.3.2; 5.4.1; 5.4.5; 1.3.2 EN ISO 80079-36, EN 60079-0
6.6; C.6
4.1; 4.4.6; C.4; C.5 1.3.3 EN 60204-1, EN 60204-11
5.3.1.7; 5.4.2 1.3.4 EN 60204-1, EN 60204-11
1.4.1 External effects are the subject
of agreement between the
manufacturer and user.
4.1 1.4.2 Resistance to chemical attack is
subject to agreement between
the manufacturer and user.
5.4.1; 5.7.1; 5.8 1.5.1 to 1.5.8 EN ISO 80079-37 and standards
supporting the use of Work
Equipment Directive
(95/63/EC)
5.4.1 1.6.1 to 1.6.5
1 (not applicable) 2.0.1
1; 4; 5 2.0.2 EN ISO 80079-36, EN 60079-0
1; 4; 5 2.0.2.1 EN ISO 80079-36, EN 60079-0
7.1 2.0.2.2
1 (not applicable ) 2.0.2.3
1 (not applicable) 2.1
1 (not applicable) 2.2
1 (not applicable ) 2.3
WARNING — Other requirements and other EU Directives may be applicable to the product(s)
falling within the scope of this standard.
5
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SIST EN ISO/IEC 80079-38:2017
EN ISO/IEC 80079-38:2016 (E)
Annex ZB
(informative)
Relationship between this European Standard and the Essential
Requirements of EU Directive 2006/42/EC
This European Standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association to provide a means of conforming to Essential
Requirements of the New Approach Directive 2006/42/EC.
Once this standard is cited in the Official Journal of the European Communities under that Directive and
has been implemented as a national standard in at least one Member State, compliance with the
normative clauses of this standard confers, within the limits of the scope of this standard, a
presumption of conformity with Essential Requirement 1.5.7 of that Directive and associated EFTA
regulations.
WARNING — Other requirements and other EU Directives may be applicable to the product(s)
falling within the scope of this standard.
6
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SIST EN ISO/IEC 80079-38:2017
EN ISO/IEC 80079-38:2016 (E)
Annex ZC
(informative)
Significant technical changes between this document and the previous
edition of this European Standard
This European Standard replaces EN 1710+A1:2008.
Table ZC.1 — Significant technical changes between this document and EN 1710+A1:2008
Significant changes Clause Type
Minor Extension Major
and technical
editorial changes
changes
Normative references updated,
especially references on CEN/CENELEC
and their publications changed into all clauses X
references on international available
publications
Terms and definitions has been
3 X
amended.
Ignition hazard assessment added
(Clauses related to mining equipment 4 X
adopted from ISO 80079-36)
Requirements for electric cable
4.4.6 X
configurations expanded
Requirements for impellers and
5.3.1.4 X
impeller rings expanded
Requirements for brakes added 5.7 X
Requirements for optical fibres used on
machines and electromagnetic radiation 5.9 X
from components on machines added
Requirements for hydraulic and
6.3 X
pneumatic equipment added
Requirements for cable-reeled
6.4 X
equipment expanded
Marking of equipment changed in
8 X
accordance with ISO 80079-36
Annex C „Ignition sources“ added Annex C X
Annex D „Guidance on potential risks
Annex D X
for converter-fed motors“added
Annex E „ Tests for surface protective
coating for group I hand tools of EPL Mb Annex E X
“added
7
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SIST EN ISO/IEC 80079-38:2017
EN ISO/IEC 80079-38:2016 (E)
Explanations:
A) Definitions
Minor and editorial changes clarification
decrease of technical requirements
minor technical change
editorial corrections
Changes in a standard classified as ‘Minor and editorial changes’ refer to changes regarding the
previous standard, which modify requirements in an editorial or a minor technical way. Also changes of
the wording to clarify technical requirements without any technical change are classified as ‘Minor and
editorial changes’.
A reduction in level of existing requirement is also classified as ‘Minor and editorial changes’
Extension addition of technical options
Changes in a standard classified as ‘extension’ refers to changes regarding the previous standard, which
add new or modify existing technical requirements, in a way that new options are given, but without
increasing requirements for equipment that was fully compliant with the previous standard. Therefore
these ‘extensions’ will not have to be considered for products in conformity with the preceding edition.
Major technical changes addition of technical requirements
increase of technical requirements
Changes in a standard classified as ‘Major technical change’ refer to changes regarding the previous
standard, which add new or increase the level of existing technical requirements, in a way that a
product in conformity with the preceding standard will not always be able to fulfil the requirements
given in the standard. ‘Major technical changes’ have to be considered for products in conformity with
the preceding edition. For every change classified as ‘Major Technical Change’ additional information is
provided in clause B) of the Annex ZC.
1
NOTE These changes represent current technological knowledge . However, these changes should not
normally have an influence on equipment already placed on the market.
B) Information about the background of ‘Major Technical Changes’
None
1
see also ATEX Guide 10.3 and Annex ZA
8
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SIST EN ISO/IEC 80079-38:2017
ISO/IEC 80079-38
Edition 1.0 2016-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Explosive atmospheres –
Part 38: Equipment and components in explosive atmospheres in underground
mines
Atmosphères explosives –
Partie 38: Appareils et composants destinés à être utilisés dans les mines
souterraines grisouteuses
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.230; 29.260.20 ISBN 978-2-8322-3180-7
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.
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SIST EN ISO/IEC 80079-38:2017
– 2 – ISO/IEC 80079-38:2016
ISO/IEC 2016
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 9
2 Normative references. 9
3 Terms, definitions and abbreviated terms . 10
4 Requirements for equipment (machines) and components . 14
4.1 General . 14
4.2 Ignition hazard assessment . 15
4.2.1 Formal analysis . 15
4.2.2 Assessment for equipment-group I, EPL Mb . 15
4.2.3 Establishing the maximum surface temperature . 15
4.2.4 Dust deposits and other material in the gap of moving parts . 15
4.2.5 Ignition hazard assessment report . 16
4.2.6 Ignition sources . 16
4.3 Non-electrical equipment and components . 16
4.4 Electrical equipment and components . 16
4.4.1 General . 16
4.4.2 Electrical equipment protection . 17
4.4.3 Over-current protection . 17
4.4.4 Earth-fault protection . 18
4.4.5 Mechanical protection of live parts . 19
4.4.6 Electric cables that are part of the equipment . 19
5 Additional requirements for specific equipment and components . 20
5.1 Cutting and stripping equipment . 20
5.1.1 General . 20
5.1.2 Machines with cutting picks . 20
5.1.3 Stripping machines . 21
5.2 Rope haulages for level and inclined transport . 21
5.3 Fans . 21
5.3.1 Ventilating fans for use in underground parts of mine . 21
5.3.2 Other fans . 23
5.4 Internal combustion engines . 23
5.5 Air compressors . 24
5.6 Drilling equipment and components . 24
5.7 Brakes . 25
5.7.1 Brakes used only for stopping in emergency . 25
5.7.2 Service brakes (including friction brakes and fluid based retarders) . 25
5.7.3 Parking brakes . 25
5.8 Traction batteries, starter batteries and vehicle lighting batteries . 25
5.9 Optical fibres used on machines and electromagnetic radiation from
components on machines . 26
5.9.1 External pipes/optical fibres . 26
5.9.2 Radio-frequency radiation from equipment . 26
5.10 Gas monitoring systems . 26
6 Fire protection . 27
6.1 General . 27
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SIST EN ISO/IEC 80079-38:2017
ISO/IEC 80079-38:2016 – 3 –
ISO/IEC 2016
6.2 Non-metallic materials . 27
6.3 Hydraulic and pneumatic equipment . 27
6.4 Requirements for cable-reeled equipment . 29
6.4.1 General . 29
6.4.2 Special requirements . 29
6.5 Fire prevention on electric cables that are part of the machine . 29
6.6 Conveyor belting . 29
7 Information for use . 30
7.1 Signals and warning notices . 30
7.2 Instructions . 30
7.2.1 Information on use . 30
7.2.2 Information on maintenance and repair . 30
8 Marking . 30
Annex A (informative) Example of an ignition hazard assessment for a conveyor belt
intended for use in a coal mine. 32
A.1 General . 32
A.2 EPL and intended use of the equipment . 32
A.3 Construction and description of the equipment . 32
A.4 Assessment . 33
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 . 36
B.1 General . 36
B.2 EPL and intended use of equipment . 36
B.3 Construction/description of the equipment with regard to ignition protection . 36
B.4 Ignition control and monitoring system . 37
B.5 Compliance with the basic methodology and requirements in ISO 80079-36 . 37
B.6 Ignition hazard assessment of the electrical parts of the equipment . 38
B.7 Ignition hazard assessment of non-electrical ignition sources . 38
B.8 Equipment marking . 38
Annex C (normative) Ignition sources . 42
C.1 Hot surfaces . 42
C.2 Flames and hot gases (including hot particles) . 42
C.3 Mechanically generated sparks . 43
C.4 Electrical equipment . 43
C.5 Stray electric currents . 43
C.6 Static electricity. 44
C.7 Lightning . 44
4 12
C.8 Radio frequency (RF) electromagnetic waves from 10 Hz to 3 × 10 Hz
(high frequency) . 44
11 15
C.9 Electromagnetic waves from 3 × 10 Hz to 3 × 10 Hz . 45
C.10 Ionizing radiation . 45
C.11 Ultrasonics . 45
C.12 Adiabatic compression and shock waves . 45
C.13 Exothermic reactions, including self-ignition of dusts . 46
Annex D (informative) Guidance on potential risks for converter-fed motors . 47
Annex E (normative) Tests for surface protective coating for group I hand tools
of EPL Mb . 48
E.1 Incendive impact tests in explosive mixture . 48
E.1.1 Verification of ignition of the raw light alloy material . 48
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ISO/IEC 2016
E.1.2 Estimation of protective coating efficiency . 48
E.1.3 Evaluation of results . 49
E.2 Adhesion test of the protective coating . 49
Bibliography . 51
Figure B.1 – Layout and construction of the coal face shearer loader . 37
Figure E.1 – Rig for impact ignition test . 50
Table 1 – Combination of materials . 23
Table 2 – Limit values for hydraulic fluids . 28
Table A.1 – Example of an ignition hazard assessment for a mining conveyor, EPL Mb
(1 of 2) . 33
Table B.1 – Example of an ignition hazard assessment for a shearer loader, EPL Mb
(1 of 3) . 39
---------------------- Page: 14 ----------------------
SIST EN ISO/IEC 80079-38:2017
ISO/IEC 80079-38:2016 – 5 –
ISO/IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EXPLOSIVE ATMOSPHERES –
Part 38: Equipment and components in explosive
atmospheres in underground mines
FOREWORD
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