prEN IEC 62271-201:2024

SLOVENSKI STANDARD
01-junij-2024
Visokonapetostne stikalne in krmilne naprave - 201. del: Izolacijsko obdane
izmenične stikalne in krmilne naprave za napetosti nad 1 kV in do vključno 52 kV
High-voltage switchgear and controlgear - Part 201: AC solid-insulation enclosed
switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 201: Isolierstoffgekapselte
Wechselstrom-Schaltanlagen für Bemessungsspannungen über 1 kV bis einschließlich
52 kV
Appareillage à haute tension - Partie 201: Appareillage sous enveloppe isolante solide
pour courant alternatif de tensions assignées supérieures à 1 kV et inférieures ou égales
à 52 kV
Ta slovenski standard je istoveten z: prEN IEC 62271-201:2024
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

17C/928/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62271-201 ED3
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-03-22 2024-06-14
SUPERSEDES DOCUMENTS:
17C/897/CD, 17C/904/CC
IEC SC 17C : ASSEMBLIES
SECRETARIAT: SECRETARY:
Germany Mr Mark Kuschel
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

TC 17,SC 17A
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
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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
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This document is still under study and subject to change. It should not be used for reference purposes.
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final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
High-voltage switchgear and controlgear - Part 201: AC solid-insulation enclosed switchgear and
controlgear for rated voltages above 1 kV and up to and including 52 kV

PROPOSED STABILITY DATE: 2032
NOTE FROM TC/SC OFFICERS:
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.

IEC CDV 62271-201 © IEC 2024 2 17C/928/CDV

1 CONTENTS
2 FOREWORD. 6
3 INTRODUCTION . 8
4 1 Scope . 9
5 2 Normative references . 9
6 3 Terms and definitions . 10
7 3.1 General terms and definitions . 10
8 3.2 Assemblies of switchgear and controlgear . 11
9 3.3 Parts of assemblies . 12
10 3.4 Switching devices . 12
11 3.5 Parts of switchgear and controlgear . 12
12 3.6 Operational characteristics of switchgear and controlgear . 15
13 3.7 Characteristic quantities . 18
14 3.8 Index of definitions . 18
15 4 Normal and special service conditions . 20
16 5 Ratings . 21
17 5.1 General . 21
18 5.2 Rated voltage (U ) . 21
r
19 5.3 Rated insulation level(U , U , U ) . 21
d p s
20 5.4 Rated frequency (f ) . 21
r
21 5.5 Rated continuous current (I ) . 21
r
22 5.6 Rated short-time withstand current (I ,I ) . 21
k ke
23 5.7 Rated peak withstand current (I , I ) . 22
p pe
24 5.8 Rated durations of short-circuit (t , t ) . 22
k ke
25 5.9 Rated supply voltage of auxiliary and control circuits (U ) . 22
a
26 5.10 Rated supply frequency of auxiliary circuits . 23
27 5.11 Rated pressure of compressed gas supply for controlled pressure systems . 23
28 5.101 Classification of earthing function through main switching device . 23
29 5.102 Rated cable test voltages (U , U ) . 23
ct (AC) ct (DC)
30 5.103 Ratings of the internal arc classification (IAC) . 23
31 6 Design and construction . 24
32 6.1 Requirements for liquids in switchgear and controlgear . 24
33 6.2 Requirements for gases in switchgear and controlgear . 25
34 6.3 Earthing of switchgear and controlgear . 25
35 6.4 Auxiliary and control equipment . 26
36 6.5 Dependent power operation . 26
37 6.6 Stored energy operation . 26
38 6.7 Independent unlatched operation (independent manual or power operation) . 26
39 6.8 Manually operated actuators . 26
40 6.9 Operation of releases . 26
41 6.10 Pressure/level indication . 26
42 6.11 Nameplates . 27
43 6.12 Locking devices . 28
44 6.13 Position indication . 29
45 6.14 Degrees of protection provided by enclosures . 29
46 6.15 Creepage distances for outdoor insulators . 30
47 6.16 Gas and vacuum tightness . 30
48 6.17 Tightness for liquid systems . 30

IEC CDV 62271-201 © IEC 2024 3 17C/928/CDV

49 6.18 Fire hazard (flammability) . 30
50 6.19 Electromagnetic compatibility (EMC) . 30
51 6.20 X-ray emission . 30
52 6.21 Corrosion . 30
53 6.22 Filling levels for insulation, switching and/or operation . 30
54 6.101 General requirements for assemblies . 30
55 6.102 Solid insulating enclosure . 31
56 6.103 High-voltage compartments . 34
57 6.104 Removable parts . 37
58 6.105 Provisions for dielectric tests on cables . 38
59 6.106 Internal arc fault . 38
60 7 Type tests . 38
61 7.1 General . 38
62 7.2 Dielectric tests . 39
63 7.3 Radio interference voltage (RIV) test . 43
64 7.4 Resistance measurement . 43
65 7.5 Continuous current tests . 44
66 7.6 Short-time withstand current and peak withstand current tests . 46
67 7.7 Verification of the protection . 48
68 7.8 Tightness tests . 48
69 7.9 Electromagnetic compatibility tests (EMC) . 48
70 7.10 Additional tests on auxiliary and control circuits . 48
71 7.11 X-radiation test procedures for vacuum interrupters . 49
72 7.101 Verification of making and breaking capacities . 49
73 7.102 Mechanical operation tests . 50
74 7.103 Pressure withstand test for gas-filled compartments . 52
75 7.104 Tests to verify the protection of persons against dangerous electrical effects . 54
76 7.105 Internal arc test . 55
77 7.106 Thermal stability test . 58
78 7.107 Humidity test . 59
79 8 Routine tests . 59
80 8.1 General . 59
81 8.2 Dielectric test on the main circuit . 59
82 8.3 Tests on auxiliary and control circuits . 60
83 8.4 Measurement of the resistance of the main circuit . 60
84 8.5 Tightness test . 60
85 8.6 Design and visual checks . 60
86 8.101 Partial discharge measurement . 60
87 8.102 Mechanical operation tests . 61
88 8.103 Pressure tests of gas-filled compartments . 61
89 8.104 Tests after erection on site . 61
90 8.105 Measurement of fluid condition after filling on site . 62
91 9 Guide to the selection of switchgear and controlgear (informative) . 62
92 9.1 General . 62
93 9.2 Selection of rated values . 62
94 9.3 Cable-interface considerations . 62
95 9.4 Continuous or temporary overload due to changed service conditions . 63
96 9.5 Env
...