FprEN IEC 63360:2024

SLOVENSKI STANDARD
oSIST prEN IEC 63360:2023
01-julij-2023
Tekočine za elektrotehniko - Mešanica plinov kot alternativa SF6
Fluids for electrotechnical application: Mixtures of gases alternative to SF6
Ta slovenski standard je istoveten z: prEN IEC 63360:2023
ICS:
71.100.20 Industrijski plini Gases for industrial
application
oSIST prEN IEC 63360:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 63360:2023
oSIST prEN IEC 63360:2023
10/1197/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63360 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-05-05 2023-07-28
SUPERSEDES DOCUMENTS:
10/1166/CD, 10/1184A/CC
IEC TC 10 : FLUIDS FOR ELECTROTECHNICAL APPLICATIONS
SECRETARIAT: SECRETARY:
Italy Mr Massimo Pompili
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 14, SC 17A, SC 17C, SC 36A, TC 38, TC 112
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,
• any relevant “in some countries” clauses to be included should this proposal proceed. Recipients are reminded that the enquiry
stage is the final stage for submitting "in some countries" clauses. See AC/22/2007.

TITLE:
Fluids for electrotechnical application: Mixtures of gases alternative to SF6

PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

oSIST prEN IEC 63360:2023
– 2 – IEC CDV 63360 © IEC:2023
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1. Scope . 7
2. Normative references . 7
3. Terms, definitions and abbreviated terms . 8
3.1. General terms and definitions . 8
3.2 Terms and definitions for compressed air . 9
3.3 Terms and definitions for natural-origin gases . 9
3.4 Terms and definitions for C F O (C5-FK) in mixtures with N , CO , O
5 10 2 2 2
(C5‑FK mixtures) . 10
3.5 Terms and definitions for C F N (C4-FN) in mixtures with N , CO , O
4 7 2 2 2
(C4‑FN mixtures) . 10
3.6 Terms and definitions for C4H2F6 (HFO1336mzzE) in mixtures with N2, CO2,
O (HFO1336mzzE mixtures) . 10
3.7 Abbreviated terms . 10
4. General requirements . 10
5. Requirements for gases alternative to SF6 . 10
5.1. General . 10
5.2. Compressed air . 11
5.3. Technical grade synthetic air . 11
5.4. Technical grade natural-origin gases: . 12
5.5. Technical grade C F O (C5-FK) . 12
5 10
5.6. Technical grade C4F7N (C4-FN) . 13
5.7. Technical grade HFO1336mzzE . 13
6. Mixing ratio and tolerances . 14
7. Handling, storage and transportation . 14
7.1. Gas handling procedures . 14
7.2. Storage and transportation . 14
8. Environmental impact . 15
Annex A (informative) Environmental, health, and safety effects of gases alternative to
SF6 . 16
A.1 General . 16
A.2 Physical Hazards . 16
A.3 Hazard to human health . 16
A.4 Environmental hazard . 17
A.5 Ozone depletion . 18
A.6 Global warming/climate change (greenhouse effect) . 18
A.7 Reducing the environmental impact of the use of gases alternative to SF
in electrical power equipment . 18
Annex B (informative) On-site detection techniques . 20
Annex C (informative) Mole fraction (%mol) versus volume fraction (%vol) . 24
C.1 General . 24
C.2 Definitions of the fractions and compressibility factor . 24
C.2.1 Mole fraction (%mol) . 24
C.2.2 Volume fraction (%vol). 24

oSIST prEN IEC 63360:2023
IEC CDV 63360 © IEC 2023 – 3 –
C.2.3 Mass fraction (%wt) . 24
C.2.4 Compressibility factor (Z) . 25
C.2.5 Names and symbols . 25
C.3 Examples %mol vs %vol for C4-FN / O / CO mixtures. 25
2 2
C.3.1 General . 25
C.3.2 Variation with pressure . 25
C.3.3 Variation with temperature . 26
Bibliography . 27

oSIST prEN IEC 63360:2023
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLUIDS FOR ELECTROTECHNICAL APPLICATION:
SPECIFICATION OF GASES ALTERNATIVE TO SF
TO BE USED IN ELECTRICAL POWER EQUIPMENT

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,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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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
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Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
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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
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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.
IEC 63360 has been prepared by subcommittee WG 41 of TC 10: SPECIFICATION
OF GASES ALTERNATIVE TO SF6 TO BE USED IN ELECTRICAL POWER EQUIPMENT, of
IEC technical committee 10: FLUIDS FOR ELECTROTECHNICAL APPLICATIONS. It is an
International Standard
The text of this International Standard is based on the following documents:
Draft Report on voting
10/XXXX/FDIS 10/XXXX/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.

oSIST prEN IEC 63360:2023
IEC CDV 63360 © IEC 2023 – 5 –
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at http://www.iec.ch/standardsdev/publications.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under 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.
oSIST prEN IEC 63360:2023
– 6 – IEC CDV 63360 © IEC:2023
1 INTRODUCTION
2 The International Electrotechnical Commission (IEC) draws attention to the fact that it is claimed
3 that compliance with this document can involve the use of a patent. IEC takes no position
4 concerning the evidence, validity, and scope of this patent right.
5 The holder of this patent right has assured IEC that s/he is willing to negotiate licences under
6 reasonable and non-discriminatory terms and conditions with applicants throughout the world.
7 In this respect, the statement of the holder of this patent right is registered with IEC. Information
8 can be obtained from the patent database available at http://patents.iec.ch.
9 Attention is drawn to the possibility that some of the elements of this document can be the
10 subject of patent rights other than those in the patent database. IEC shall not be held
11 responsible for identi
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