IEC 62271-212:2016

IEC 62271-212 ®
Edition 1.0 2016-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 212: Compact Equipment Assembly for Distribution Substation (CEADS)

Appareillage à haute tension –
Partie 212: Ensemble Compact d'Equipement pour Postes de Distribution
(ECEPD)
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IEC 62271-212 ®
Edition 1.0 2016-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –

Part 212: Compact Equipment Assembly for Distribution Substation (CEADS)

Appareillage à haute tension –

Partie 212: Ensemble Compact d'Equipement pour Postes de Distribution

(ECEPD)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10 ISBN 978-2-8322-3633-8

– 2 – IEC 62271-212:2016 © IEC 2016
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 General . 10
1.1 Scope . 10
1.2 Normative references . 10
2 Normal and special service conditions . 12
2.1 Normal service conditions . 12
2.2 Special service conditions . 12
3 Terms and definitions . 12
4 Ratings . 14
4.1 Rated voltage . 14
4.2 Rated insulation level . 15
4.3 Rated frequency (f ) . 15
r
4.4 Rated normal current and temperature rise . 15
4.4.1 Rated normal current (I ,I ) . 15
r nA
4.4.2 Temperature rise . 15
4.5 Rated short-time withstand currents (I , I , I ) . 16
k ke cw
4.5.101 Rated short-time phase to phase and rated short-time phase to earth
withstand currents of high-voltage functional unit and rated short-time
withstand current of high-voltage interconnection (I , I ) . 16
k ke
4.5.102 Rated short-time withstand currents of low-voltage functional unit and
low-voltage interconnection (I ). 16
cw
4.5.103 Short-time withstand currents of high-voltage/low-voltage transformer
functional unit . 16
4.6 Rated peak withstand currents (I , I , I ) . 16
p pe pk
4.6.101 Rated peak phase to phase and rated peak phase to earth withstand
currents of high-voltage functional unit and rated peak withstand current
of high-voltage interconnection (I , I ) . 16
p pe
4.6.102 Rated peak withstand currents of low-voltage and low-voltage
interconnection (I ) . 17
pk
4.6.103 Peak withstand currents of high-voltage/low-voltage transformer

functional unit . 17
4.7 Rated durations of short circuit (t , t , t ) . 17
k ke cw
4.7.101 Rated duration of phase to phase short circuit (t ) and rated duration of
k
phase to earth short circuit (t ) of high-voltage functional unit and
ke
rated duration of short-circuit of high-voltage interconnection . 17
4.7.102 Rated duration of short circuit (t ) for low-voltage functional unit and
cw
low-voltage interconnection . 17
4.7.103 Duration of short circuit for high-voltage/low-voltage transformer
functional unit . 17
4.8 Rated supply voltage of closing and opening devices and of auxiliary and
control circuits . 17
4.9 Rated supply frequency of closing and opening devices and of auxiliary
circuits . 17
4.101 Rated power and total losses of CEADS . 18
4.102 Ratings of the internal arc classification (IAC) . 18
4.102.1 General . 18
4.102.2 Types of accessibility (A, B, AB) . 18
4.102.3 Classified sides . 18

4.102.4 Rated arc fault currents (I , I ) . 18
A Ae
4.102.5 Rated arc fault duration (t , t ) . 19
A Ae
5 Design and construction . 19
5.1 Requirements for liquids in switchgear and controlgear . 19
5.2 Requirements for gases in switchgear and controlgear . 20
5.3 Earthing of switchgear and controlgear . 20
5.4 Auxiliary and control equipment . 20
5.5 Dependent power operation . 20
5.6 Stored energy operation . 21
5.7 Independent manual or power operation (independent unlatched operation) . 21
5.8 Operation of releases . 21
5.9 Low- and high-pressure interlocking and monitoring devices . 21
5.10 Nameplates. 21
5.11 Interlocking devices . 21
5.12 Position indication . 21
5.13 Degrees of protection provided by enclosures . 21
5.14 Creepage distances for outdoor insulators . 22
5.15 Gas and vacuum tightness . 22
5.16 Liquid tightness . 22
5.17 Fire hazard (flammability) . 22
5.18 Electromagnetic compatibility (EMC) . 22
5.19 X-ray emission . 22
5.20 Corrosion . 23
5.101 Protection against mechanical stresses .
...