prEN IEC 61869-20:2024
(Main)IEC 61869-20: Safety requirements of Instrument Transformers for High Voltage applications
IEC 61869-20: Safety requirements of Instrument Transformers for High Voltage applications
IEC 61869-20: Varnostne zahteve instrumentalnih transformatorjev za visokonapetostne aplikacije
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN IEC 61869-20:2024
01-april-2024
IEC 61869-20: Varnostne zahteve instrumentalnih transformatorjev za
visokonapetostne aplikacije
IEC 61869-20: Safety requirements of Instrument Transformers for High Voltage
applications
Ta slovenski standard je istoveten z: prEN IEC 61869-20:2024
ICS:
17.220.20 Merjenje električnih in Measurement of electrical
magnetnih veličin and magnetic quantities
oSIST prEN IEC 61869-20:2024 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN IEC 61869-20:2024
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oSIST prEN IEC 61869-20:2024
38/786/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61869-20 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-02-09 2024-05-03
SUPERSEDES DOCUMENTS:
38/725/NP, 38/771A/RVN
IEC TC 38 : INSTRUMENT TRANSFORMERS
SECRETARIAT: SECRETARY:
Italy Mr Filippo Frugoni
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 64
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:
IEC 61869-20: Safety requirements of Instrument Transformers for High Voltage applications
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 61869-20:2024
38/786/CDV – 2 – IEC CDV 61869-20 © IEC:2023
1 CONTENTS
2
3 FOREWORD . 4
4 1 Scope . 6
5 2 Normative references . 6
6 3 Terms and definitions . 6
7 4 Protection against electric shock . 7
8 4.1 General . 7
9 4.2 Earthing of housing, terminals and connection to carrier-frequency
10 accessory . 7
11 4.2.1 General . 7
12 4.2.2 Earthing of HV CTs . 7
13 4.2.3 Earthing of HV VTs . 9
14 4.3 Access to secondary terminals . 12
15 4.3.1 General . 12
16 4.3.2 Indoor instrument transformers . 12
17 4.3.3 Outdoor instrument transformers . 12
18 4.3.4 Protection of equipment against mechanical impact under normal
19 service conditions . 13
20 4.4 Ri
...
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