Explosive atmospheres - Part 47: Equipment protection by 2-wire intrinsically safe Ethernet concept (2-WISE)

This part of IEC 60079, which is a technical specification, specifies requirements for the construction, marking, and documenting of apparatus, systems and installations for use with the 2-Wire Intrinsically Safe Ethernet concept (2-WISE). The physical layer specification for 2-wire Ethernet 10BASE-T1L is defined in IEEE 802.3cg
2-WISE is the 2-Wire Intrinsically Safe Ethernet concept for advance physical layer (APL), designed to simplify the examination process for components and cable Entity Parameters within APL segments. This is achieved by defining universal Entity Parameter limits for APL ports, according to location and type of hazardous atmosphere, and listing a concise set of rules for the segment setup.
The requirements for construction and installation of 2-WISE apparatus and systems are included in IEC 60079-11, IEC 60079-14, and IEC 60079-25, except as modified by this technical specification. Parts of a 2-WISE apparatus may be protected by any Type of Protection listed in IEC 60079-0 appropriate to the EPL for the intended use. In these circumstances, the requirements of this technical specification apply only to intrinsically safe circuits of the apparatus.

Explosionsgefährdete Bereiche - Teil 47: Geräteschutz durch eigensicheres 2-Draht-Ethernet-Konzept (2-WISE)

Atmosphères explosives - Partie 47: Protection du matériel par le concept Ethernet de sécurité intrinsèque à 2 fils (2-WISE)

Eksplozivne atmosfere - 47. del: Zaščita opreme z lastnovarnim dvožičnim konceptom Ethernet (2-WISE)

General Information

Status
Published
Publication Date
08-Nov-2021
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
27-Jul-2021
Due Date
01-Oct-2021
Completion Date
09-Nov-2021

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SLOVENSKI STANDARD
SIST-TS CLC IEC/TS 60079-47:2021
01-december-2021
Eksplozivne atmosfere - 47. del: Zaščita opreme z lastnovarnim dvožičnim
konceptom Ethernet (2-WISE)

Explosive atmospheres - Part 47: Equipment protection by 2-wire intrinsically safe

Ethernet concept (2-WISE)

Explosionsgefährdete Bereiche - Teil 47: Geräteschutz durch eigensicheres 2-Draht-

Ethernet-Konzept (2-WISE)

Atmosphères explosives - Partie 47: Protection du matériel par le concept Ethernet de

sécurité intrinsèque à 2 fils (2-WISE)
Ta slovenski standard je istoveten z: CLC IEC/TS 60079-47:2021
ICS:
29.260.20 Električni aparati za Electrical apparatus for
eksplozivna ozračja explosive atmospheres
SIST-TS CLC IEC/TS 60079-47:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CLC IEC/TS 60079-47:2021
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SIST-TS CLC IEC/TS 60079-47:2021
TECHNICAL SPECIFICATION CLC IEC/TS 60079-47
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
July 2021
ICS 29.260.20
English Version
Explosive atmospheres - Part 47: Equipment protection by 2-
wire intrinsically safe Ethernet concept (2-WISE)
(IEC/TS 60079-47:2021)

Atmosphères explosives - Partie 47: Protection du matériel Explosionsgefährdete Bereiche - Teil 47: Geräteschutz

par le concept Ethernet de sécurité intrinsèque à 2 fils (2- durch eigensicheres 2-Draht-Ethernet-Konzept (2-WISE)

WISE) (IEC/TS 60079-47:2021)
(IEC/TS 60079-47:2021)
This Technical Specification was approved by CENELEC on 2021-07-05.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly

at national level in an appropriate form. It is permissible to keep conflicting national standards in force.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels

© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. CLC IEC/TS 60079-47:2021 E
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SIST-TS CLC IEC/TS 60079-47:2021
CLC IEC/TS 60079-47:2021 (E)
European foreword

This document (CLC IEC/TS 60079-47:2021) consists of the text of IEC/TS 60079-47:2021 prepared

by IEC/TC 31 "Equipment for explosive atmospheres".

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Any feedback and questions on this document should be directed to the users’ national committee. A

complete listing of these bodies can be found on the CENELEC website.
Endorsement notice

The text of the International Technical Specification IEC/TS 60079-47:2021 was approved by

CENELEC as a European Technical Specification without any modification.
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SIST-TS CLC IEC/TS 60079-47:2021
CLC IEC/TS 60079-47:2021 (E)
Annex ZA
(normative)
Normative references to international publications with their
corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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 1 Where an International Publication has been modified by common modifications, indicated by (mod), the

relevant EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available

here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60079-0 - Explosive atmospheres - Part 0: EN IEC 60079-0 -
Equipment - General requirements
IEC 60079-11 - Explosive atmospheres - Part 11: EN 60079-11 -
Equipment protection by intrinsic safety "i"
IEC 60079-14 - Explosive atmospheres - Part 14: Electrical EN 60079-14 -
installations design, selection and erection
IEC 60079-25 - Explosive atmospheres - Part 25: EN 60079-25 -
Intrinsically safe electrical systems
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SIST-TS CLC IEC/TS 60079-47:2021
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SIST-TS CLC IEC/TS 60079-47:2021
IEC TS 60079-47
Edition 1.0 2021-02
TECHNICAL
SPECIFICATION
Explosive atmospheres –
Part 47: Equipment protection by 2-wire intrinsically safe Ethernet concept
(2-WISE)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.260.20 ISBN 978-2-8322-9317-1

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
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SIST-TS CLC IEC/TS 60079-47:2021
– 2 – IEC TS 60079-47:2021  IEC 2021
CONTENTS

FOREWORD ........................................................................................................................... 3

1 Scope .............................................................................................................................. 5

2 Normative references ...................................................................................................... 5

3 Terms and definitions ...................................................................................................... 5

4 Requirements for 2-WISE devices ................................................................................... 6

4.1 General ................................................................................................................... 6

4.2 2-WISE power source ports .................................................................................... 7

4.3 2-WISE power load ports and 2-WISE auxiliary device ports ................................... 7

4.4 2-WISE communication only ports ........................................................................... 8

4.5 Simple apparatus .................................................................................................... 8

5 Requirements for 2-WISE systems .................................................................................. 8

5.1 General ................................................................................................................... 8

5.2 Wiring systems ....................................................................................................... 9

5.3 Powered 2-WISE systems ....................................................................................... 9

5.4 Communication only 2-WISE systems ..................................................................... 9

5.5 Descriptive system document ................................................................................ 10

6 Schedule drawings and instructions for 2-WISE devices ................................................ 10

7 Marking ......................................................................................................................... 11

7.1 General ................................................................................................................. 11

7.2 Examples of marking ............................................................................................. 11

Bibliography .......................................................................................................................... 14

Figure 1 – DC-powered 2-WISE system .................................................................................. 9

Figure 2 – Communication only 2-WISE system .................................................................... 10

Table 1 – Intrinsically safe parameters for 2-WISE Power load ports and auxiliary

device ports ............................................................................................................................ 7

Table 2 – Intrinsically safe parameters for 2-WISE communication only ports ......................... 8

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SIST-TS CLC IEC/TS 60079-47:2021
IEC TS 60079-47:2021  IEC 2021 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EXPLOSIVE ATMOSPHERES –
Part 47: Equipment protection by 2-wire intrinsically
safe Ethernet concept (2-WISE)
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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

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 nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent

rights. IEC shall not be held responsible for identifying any or all such patent rights.

The main task of IEC technical committees is to prepare International Standards. In exceptional

circumstances, a technical committee may propose the publication of a technical specification

when

• the required support cannot be obtained for the publication of an International Standard,

despite repeated efforts, or

• the subject is still under technical development or where, for any other reason, there is the

future but no immediate possibility of an agreement on an International Standard.

Technical specifications are subject to review within three years of publication to decide whether

they can be transformed into International Standards.

IEC TS 60079-47, which is a technical specification, has been prepared by subcommittee 31G:

Intrinsically safe apparatus, of IEC technical committee 31: Equipment for explosive

atmospheres.
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SIST-TS CLC IEC/TS 60079-47:2021
– 4 – IEC TS 60079-47:2021  IEC 2021
The text of this technical specification is based on the following documents:
Enquiry draft Report on voting
31G/323/DTS 31G/334/RVC

Full information on the voting for the approval of this technical specification can be found in the

report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 60079 series, published under the general title Explosive

atmospheres, can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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SIST-TS CLC IEC/TS 60079-47:2021
IEC TS 60079-47:2021  IEC 2021 – 5 –
EXPLOSIVE ATMOSPHERES –
Part 47: Equipment protection by 2-wire intrinsically
safe Ethernet concept (2-WISE)
1 Scope

This part of IEC 60079, which is a technical specification, specifies requirements for the

construction, marking and documenting of apparatus, systems and installations for use with the

2-Wire Intrinsically Safe Ethernet concept (2-WISE), such as the physical layer specification for

2-Wire Ethernet 10BASE-T1L as defined in IEEE 802.3cg.

2-WISE is a concept for an advanced physical layer (APL), designed to simplify the examination

process for intrinsic safety parameters of components and cabling within APL segments. This

is achieved by defining universal intrinsic safety parameter limits for APL ports, according to

the specific hazardous area requirements and listing a concise set of rules for the segment

setup.

The requirements for construction and installation of 2-WISE devices and systems are included

in IEC 60079-11, IEC 60079-14, and IEC 60079-25, except as modified by this document. Parts

of a 2-WISE device can be protected by any Type of Protection listed in IEC 60079-0

appropriate to the EPL for the intended hazardous area. In these circumstances, the

requirements of this technical specification apply only to intrinsically safe circuits of the

apparatus.

Where a requirement of this document conflicts with a requirement of IEC 60079-0,

IEC 60079-11, IEC 60079-14 or IEC 60079-25, the requirements of this document take

precedence.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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
...

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