EN IEC 60079-25:2022/prA1:2024
(Amendment)Explosive atmospheres - Part 25: Intrinsically safe electrical systems
Explosive atmospheres - Part 25: Intrinsically safe electrical systems
Explosionsgefährdete Bereiche - Teil 25: Eigensichere Systeme
Atmosphères explosives - Partie 25: Systèmes électriques de sécurité intrinsèque
Eksplozivne atmosfere - 25. del: Lastnovarni električni sistemi - Dopolnilo 1
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Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2024
Eksplozivne atmosfere - 25. del: Lastnovarni električni sistemi - Dopolnilo 1
Amendment 1 - Explosive atmospheres - Part 25: Intrinsically safe electrical systems
Explosionsgefährdete Bereiche - Teil 25: Eigensichere Systeme
Atmosphères explosives - Partie 25: Systèmes électriques de sécurité intrinsèque
Ta slovenski standard je istoveten z: EN IEC 60079-25:2022/prA1:2024
ICS:
29.260.20 Električni aparati za Electrical apparatus for
eksplozivna ozračja explosive atmospheres
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
31G/396/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60079-25/AMD1 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-05-17 2024-08-09
SUPERSEDES DOCUMENTS:
31G/385/CD, 31G/395/CC
IEC SC 31G : INTRINSICALLY-SAFE APPARATUS
SECRETARIAT: SECRETARY:
United Kingdom Mr Nicholas Ludlam
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 18,SC 31J
Other TC/SCs are requested to indicate their interest, if
any, in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Amendment 1 - Explosive atmospheres - Part 25: Intrinsically safe electrical systems
-2- 31G/395/CDV
PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
-3- 31G/395/CDV
1 INTERNATIONAL ELECTROTECHNICAL COMMISSION
2 ____________
4 EXPLOSIVE ATMOSPHERES –
6 Part 25: Intrinsically safe electrical systems
8 AMENDMENT 1
10 FOREWORD
11 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all
12 national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co -
13 operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition
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15 Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is
16 entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate
17 in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also
18 participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO)
19 in accordance with conditions determined by agreement between the two organizations.
20 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
21 consensus of opinion on the relevant subjects since each technical committee has representation from all interested
22 IEC National Committees.
23 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
24 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
25 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
26 misinterpretation by any end user.
27 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
28 transparently to the maximum extent possible in their national and regional publications. Any divergence between
29 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
30 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
31 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services
32 carried out by independent certification bodies.
33 6) All users should ensure that they have the latest edition of this publication.
34 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
35 members of its technical committees and IEC National Committees for any personal injury, property damage or other
36 damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising
37 out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
38 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
39 indispensable for the correct application of this publication.
40 9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a) patent(s).
41 IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in respect thereof.
42 As of the date of publication of this document, IEC had not received notice of (a) patent(s), which may be required
43 to implement this document. However, implementers are cautioned that this may not represent the latest information,
44 which may be obtained from the patent database available at https://patents.iec.ch [and/or] www.iso.org/patents. IEC
45 shall not be held responsible for identifying any or all such patent rights.
46 Amendment 1 to IEC 60079-25:2020 has been prepared by subcommittee 31G: Intrinsic safety, of
47 IEC technical committee 31: Explosive atmospheres.
-4- 31G/395/CDV
48 The text of this Amendment is based on the following documents:
Draft Report on voting
XX/XX/XXXX XX/XX/XXX
50 Full information on the voting for its approval can be found in the report on voting indicated in the
51 above table.
52 The language used for the development of this Amendment is English
53 This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
54 accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available at
55 www.iec.ch/members_experts/refdocs. The main document types developed by IEC are described
56 in greater detail at www.iec.ch/publications/.
57 The committee has decided that the contents of this document will remain unchanged until the
58 stability date indicated on the IEC website under webstore.iec.ch in the data related to the specific
59 document. At this date, the document will be
60 • reconfirmed,
61 • withdrawn, or
62 • revised.
-5- 31G/395/CDV
65 1 Scope
rd
66 Replace the text of the 3 paragraph with the following new text:
67 The installation requirements of Group II or Group III systems designed in accordance with this
68 standard are specified in IEC 60079-14. Where a specific requirement of IEC 60079-14 is applied
69 by this standard the same requirements may be applied for Group I.
70 2 Normative references
71 Add the following normative reference:
72 IEC TS 60079-47, Explosive atmospheres – Part 47: Equipment protection by 2-wire intrinsically safe
73 Ethernet concept (2-WISE)
74 3 Definitions
75 Add the ‘Note 1 to entry’ to the following definition:
76 3.3
77 descriptive system document
78 document in which the items of apparatus, their intrinsic safety parameters and those of the
79 interconnecting wiring are specified
81 Note 1 to entry: Document in this context is any means of recording the required information. Examples include reports, drawings,
82 spreadsheets, and databases.
84 Add the following definition:
86 3.10
87 2-WISE system
88 assembly of interconnected items of 2-WISE devices, described in a descriptive system document, in
89 which the circuits or parts of the circuits, intended to be used in an explosive atmosphere, are intrinsically
90 safe circuits
92 7 Non-intrinsically safe circuits
93 Replace the text of this clause with the following new text:
94 The descriptive system doc
...
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