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

IEC 60079-47:2021(E), 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.

General Information

Status
Published
Publication Date
02-Feb-2021
Current Stage
PPUB - Publication issued
Start Date
23-Feb-2021
Completion Date
03-Feb-2021
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IEC TS 60079-47:2021 - Explosive atmospheres - Part 47: Equipment protection by 2-wire intrinsically safe ethernet concept (2-WISE)
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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)

IEC TS 60079-47:2021-02(en)

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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)

























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ELECTROTECHNICAL


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ICS 29.260.20 ISBN 978-2-8322-9317-1




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– 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
...

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