prEN IEC 61203:2023

Synthetic esters - Guidelines for maintenance and use in electrical equipment

Technical reason justifying the negative vote. The technical reason will be included in the voting report, together with the compilation of comments submitted via the comment files.

Esters organiques de synthèse à usages électriques - Guide de maintenance des esters pour transformateurs dans les matériels

Sintetični estri - Smernice za vzdrževanje in uporabo v električni opremi

General Information

• Status: Not Published
• Publication Date: 02-Apr-2025
• ICS: 29.040.10 - Insulating oils
• ICS: 29.180 - Transformers. Reactors
• Technical Committee: CLC/SR 10 - Fluids for electrotechnical applications
• Drafting Committee: IEC/TC 10 - IEC_TC_10
• Current Stage: 4060 - Enquiry results established and sent to TC, SR, BTTF - Enquiry
• Start Date: 01-Dec-2023
• Completion Date: 01-Dec-2023
• Ref Project: oSIST prEN IEC 61203:2023 - Synthetic esters - Guidelines for maintenance and use in electrical equipment

Relations

• Revises: EN 61203:1994 - Synthetic organic esters for electrical purposes - Guide for maintenance of transformer esters in equipment
• Effective Date: 26-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN IEC 61203:2023
01-november-2023
Sintetični estri - Smernice za vzdrževanje in uporabo v električni opremi
Synthetic esters - Guidelines for maintenance and use in electrical equipment
Synthetische organische Ester für elektrotechnische Zwecke - Leitlinie zur Wartung von
Transformator-Estern in Betriebsmitteln
Esters organiques de synthèse à usages
électriques - Guide de maintenance des esters pour transformateurs dans
les matériels
Ta slovenski standard je istoveten z: prEN IEC 61203:2023
ICS:
29.035.20 Plastični in gumeni izolacijski Plastics and rubber insulating
materiali materials
29.180 Transformatorji. Dušilke Transformers. Reactors
oSIST prEN IEC 61203:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN IEC 61203:2023

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oSIST prEN IEC 61203:2023
10/1203/CDV

COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61203 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-09-08 2023-12-01
SUPERSEDES DOCUMENTS:
10/1177/CD, 10/1198/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, TC 20, SC 36A, TC 38, TC 99, 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.
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:
Synthetic esters – Guidelines for maintenance and use in electrical equipment

PROPOSED STABILITY DATE: 2028

NOTE FROM TC/SC OFFICERS:


Copyright © 2023 International Electrotechnical Commission, IEC. All rights reserved. It is permitted to download this
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.

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oSIST prEN IEC 61203:2023
– 2 – IEC CDV 61203 © IEC 2023
CONTENTS

1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 8
4 Categories of equipment . 8
5 In-service synthetic ester diagnostic tests. 9
6 Evaluation of synthetic esters in new equipment . 10
7 Evaluation of synthetic ester in equipment in service . 11
7.1 General . 11
Application of synthetic esters in transformers is recommended for both sealed and free breathing
equipment. . 11
7.2 Frequency of examination . 11
7.3 Testing procedures . 12
...