EN 62271-108:2006

High-voltage switchgear and controlgear - Part 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages of 72,5 kV and above

This part of EN 62271 applies to high-voltage alternating current disconnecting circuit-breakers for operation at frequencies of 50 Hz and 60 Hz on systems having voltages of 72,5 kV and above. This standard identifies which requirements of EN 60694, EN 62271-100 and EN 62271-102 standards are applicable. It also gives the additional requirements specific to these devices. This standard covers a circuit-breaker which, when in the open position, satisfies the requirements of both a circuit-breaker and a disconnector.

Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 108: Hochspannungs-Wechselstrom-Leistungsschalter mit Trennfunktion für Bemessungsspannungen größer oder gleich 72,5 kV

Appareillage à haute tension - Partie 108: Disjoncteurs-sectionneurs à courant alternatif à haute tension de tensions assignées supérieures ou égales à 72,5 kV

La présente partie de la EN 62271 s'applique aux disjoncteurs-sectionneurs à courant alternatif à haute tension fonctionnant à des fréquences de 50 Hz et 60 Hz sur des systèmes de tension assignée supérieure ou égale à 72,5 kV. La présente norme identifie les exigences des normes EN 60694, EN 62271-100 et EN 62271-102 qui sont applicables. Elle donne également les exigences supplémentaires spécifiques à ces appareils. La présente norme couvre un disjoncteur qui, en position d'ouverture, satisfait à la fois aux exigences d'un disjoncteur et d'un sectionneur.

Visokonapetostne stikalne naprave – 108. del: Odklopniki za visokonapetostni izmenični tok za naznačene napetosti 72,5 kV in več (IEC 62271-108:2005)

General Information

• Status: Withdrawn
• Publication Date: 30-Mar-2006
• Withdrawal Date: 30-Nov-2008
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: CLC/TC 17AC - High-voltage switchgear and controlgear
• Drafting Committee: IEC/SC 17A - IEC_SC_17A
• Parallel Committee: IEC/SC 17A - IEC_SC_17A
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 13-Aug-2023
• Completion Date: 13-Aug-2023
• Ref Project: SIST EN 62271-108:2006 - High-voltage switchgear and controlgear -- Part 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages of 72,5 kV and above

Relations

• Replaced By: EN IEC 62271-108:2020 - High-voltage switchgear and controlgear - Part 108: High-voltage alternating current disconnecting circuit-breakers for rated voltages above 52 kV
• Effective Date: 25-Jan-2023

Standards Content (Sample)

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EUROPEAN STANDARD
EN 62271-108
NORME EUROPÉENNE
March 2006
EUROPÄISCHE NORM
ICS 29.130.10
English version
High-voltage switchgear and controlgear
Part 108: High-voltage alternating current disconnecting
circuit-breakers for rated voltages of 72,5 kV and above
(IEC 62271-108:2005)
Appareillage à haute tension Hochspannungs-Schaltgeräte
Partie 108: Disjoncteurs-sectionneurs und -Schaltanlagen
à courant alternatif à haute tension Teil 108: Hochspannungs-Wechselstrom-
de tensions assignées supérieures Leistungsschalter mit Trennfunktion
ou égales à 72,5 kV für Bemessungsspannungen
(CEI 62271-108:2005) größer oder gleich 72,5 kV
(IEC 62271-108:2005)
This European Standard was approved by CENELEC on 2005-12-01. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62271-108:2006 E
Foreword
The text of document 17A/742/FDIS, future edition 1 of IEC 62271-108, prepared by SC 17A, High-
voltage switchgear and controlgear, of IEC TC 17, Switchgear and controlgear, was submitted to the
IEC-CENELEC parallel vote and was approved by CENELEC as EN 62271-108 on 2005-12-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-10-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2008-12-01
This European Standard should be read in conjunction with EN 62271-100:2001, EN 62271-102:2002
and EN 60694:1996, to which it refers and which is applicable, unless otherwise specified. In order to
simplify the indication of corresponding requirements, the same numbering of clauses and subclauses is
used as in EN 60694. Additional subclauses are numbered from 101.
This European Standard makes reference to International Standards. Where the International Standard
referred to has been endorsed as a European Standard or a home-grown European Standard exists, this
European Standard shall be applied instead. Pertinent information can be found on the CENELEC web
site.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62271-108:2005 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 62271-108:2006
Annex ZA
(informative)
A-deviations
A-deviation: National deviation due to regulations, the alteration of which is for the time being outside the
competence of the CENELEC member.
A-deviations in an EFTA-country are valid instead of the relevant provisions of the European Standard in
that country until they have been removed.
Clause Deviation
1.1 Italy
1)
(I.S.P.E.S.L. Rules, 95 revision: VSR.8.B.1; VSR.8.B.2; M.15.D.2)
Italian laws apply to gas pressurized enclosures made of both insulating and metallic
materials with a capacity of 25 litres or above, a design pressure higher than
0,05 kg/cm² and a temperature range: -25 °C/+100 °C (only for insulating materials).

Moreover the manufacturer of any electrical equipment which comprehends gas
pressurized enclosures must submit the design of the pressurized enclosures itself to
a proper legal Authority indicating the stresses and the loads which have any influence
on the design itself. For each of the stresses the manufacturer must indicate the
design values and the relevant computations.

– For metal-enclosed switchgear and controlgear containing gas-filled
compartments, the design pressure is limited to a maximum of 0,5 bar (gauge) and
the volume is limited to a maximum of 2 m .

– Gas filled compartments having a design pressure exceeding 0,5 bar (gauge) or a
volume exceeding 2 m shall be designed according to Italian pressure vessel code
for electrical switchgear (DM 1 December 1980 and DM 10 September 1981
published on Gazzetta Ufficiale n° 285 dated 16.10.1981).

5 Italy
1)
(I.S.P.E.S.L. Rules, 95 revision: VSR.8.B.1 and M.15.D.3. Tab I for porcelain)
Only the use of porcelain type A or S. (Aluminous or Siliceous) is permitted.

6 Italy
1)
(I.S.P.E.S.L. Rules, 95 revision: VSR.8.B.1 Clause 2)
The type test shall be performed in the presence of the Authority Supervisor.

1)
(I.S.P.E.S.L. Rules, 95 revision: VSR.8.B.2 Clause 2; M.15.D.4)
An additional pressure test shall be performed on a complete pressurized enclosure.
This has to withstand 1,5 times the design pressure without failure for five minutes.

Temperature cycles test and electrical test shall be made; after these tests shall be
carried out consecutively the pressure test at pressure p ≥ 4,25 times the design
pressure.
7 Italy
1)
(I.S.P.E.S.L. Rules, 95 revision: VSR.8.B.1 subclause 4.1.2)
For a homogeneous batch of 100 pieces max., one hollow insulator shall be subjected
to the failure test with a pressure 4,25 times the design pressure.

1)
I.S.P.E.S.L.: Istituto Superiore per la Prevenzione e la Sicurezza del Lavoro

NORME CEI
INTERNATIONALE
IEC
62271-108
INTERNATIONAL
Première édition
STANDARD
First edition
2005-10
Appareillage à haute tension –
Partie 108:
Disjoncteurs-sectionneurs à courant alternatif
à haute tension de tensions assignées
supérieures ou égales à 72,5 kV

High-voltage switchgear and controlgear –
Part 108:
High-voltage alternating current disconnecting
circuit-breakers for rated voltages of 72,5 kV
and above
 IEC 2005 Droits de reproduction réservés  Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
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International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue

62271-108  IEC:2005 – 3 –
CONTENTS
FOREWORD.7

1 General .11
1.1 Scope and object.11
1.2 Normative references .11
2 Normal and special service conditions .11
3 Terms and definitions .13
3.1 General terms .13
3.2 Assemblies of switchgear and controlgear .13
3.3 Parts of assemblies.13
3.4 Switching devices.13
3.5 Parts of switchgear and controlgear .13
3.6 Operation .15
3.7 Characteristic quantities .15
4 Ratings.17
4.2 Rated insulation level.19
4.112 Rated static terminal load.19
5 Design and construction .25
5.10 Nameplates .25
5.11 Interlocking devices.25
5.12 Position indication.25
5.102 Requirements in respect of the isolating distance of disconnecting circuit-
breakers.25
5.104.1 Securing of position.25
5.104.2 Additional requirements for power operated mechanisms .25
6 Type tests .27
6.1 General .27
6.2 Dielectric tests.27
6.3 Radio interference (r.i.v.) tests .27
6.4 Measurement of the resistance of the main circuit .27
6.5 Temperature-rise tests.27
6.6 Short-time withstand current and peak withstand current tests .27
6.7 Verification of the degree of protection .27
6.8 Tightness tests.27
6.9 Electromagnetic compatibility tests.27
6.101 Mechanical and environmental tests.29
6.102 Miscellaneous provisions for making and breaking tests.29
6.103 Test circuits for short-circuit making and breaking tests.29
6.104 Short-circuit test quantities.29
6.105 Short-circuit test procedure.29
6.106 Basic short-circuit test-duties.29
6.107 Critical current tests .29
6.108 Single-phase and double-earth fault tests.31
6.109 Short-line fault tests.31
6.110 Out-of-phase making and breaking tests .31

62271-108  IEC:2005 – 5 –
6.111 Capacitive current switching tests .31
6.112 Special requirements for making and breaking tests on class E2
disconnecting circuit-breakers .31
6.113 Tests to verify the proper function of the position indicating device .31
A.6.105Tests to verify the proper function of the position indicating device.31
6.114 Combined function test.33
7 Routine tests .43
8 Guide to the selection of disconnecting circuit-breakers for service .43
9 Information to be given with enquires, tenders and orders .43
10 Rules for transport, storage, installation, operation and maintenance .43
11 Safety.
...