CLC IEC/TR 62271-307:2019

High-voltage switchgear and controlgear - Part 307: Guidance for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV

This Part of IEC 62271, which is a Technical Report, refers to prefabricated metal-enclosed and solid-insulation enclosed (both hereinafter called enclosed) switchgear and controlgear assemblies for alternating current of rated voltages above 1 kV and up to and including 52 kV as specified in IEC 62271-200 and IEC 62271-201, and to other equipment included in the same enclosure with any possible mutual influence. This Technical Report may be used for the extension of the validity of type tests performed on one test object with a defined set of ratings to another switchgear assembly of the same family with a different set of ratings or different arrangements of components. It supports the selection of representative test objects composed of functional units of a family of switchgear and controlgear aimed at the optimization of type tests in order to perform a consistent conformity assessment. This Technical Report utilises a combination of sound technical and physical principles, manufacturer and user experience and calculations to establish guidance for the extension of validity of type tests, covering various design and rating aspects.

Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 307: Leitfaden für die Erweiterung des Geltungsbereichs von Typprüfungen von metall- und isolierstoffgekapselten Wechselstrom-Schaltanlagen für Bemessungsspannungen über 1 kV und bis einschließlich 52 kV

Appareillage à haute tension - Partie 307: Lignes directrices pour l'extension de validité des essais de type d'appareillages en courant alternatif sous enveloppe métallique et d’isolation solide pour tensions assignées supérieures à 1 kV et jusqu'à 52 kV inclus

L'IEC TR 62271-307:2015 se réfère aux ensembles d'appareillage sous enveloppe métallique et d'isolation solide (appelés ci-dessous appareillages sous enveloppe) pour des tensions assignées en courant alternatif supérieures à 1 kV et jusqu'à 52 kV inclus, tels que spécifiés dans l'IEC 62271-200 et l'IEC 62271-201, et aux autres équipements inclus dans la même enveloppe et pouvant avoir une influence mutuelle. Cette publication doit être lue conjointement avec l' IEC 62271-200:2011 et l' IEC 62271-201:2014.

Visokonapetostne stikalne in krmilne naprave - 307. del: Navodilo za podaljšanje veljavnosti preskusov tipa za izmenične (AC) stikalne in krmilne naprave v kovinskih ohišjih in ohišjih iz trdih izolacijskih materialov za naznačene napetosti nad 1 kV do vključno 52 kV (CLC IEC/TR 62271-307:2019)

Ta del standarda IEC 62271, ki je tehnično poročilo, se navezuje na predizdelane sklope stikalnih in krmilnih naprav v kovinskih ohišjih in ohišjih iz trdih izolacijskih materialov (v nadaljevanju »v ohišju«) za izmenični tok naznačenih napetosti nad 1 kV in do vključno 52 kV, kot je opredeljeno v standardih IEC 62271-200 in IEC 62271-201, ter na drugo opremo, ki je vključena v istem ohišju s kakršnim koli možnim medsebojnim vplivanjem.
To tehnično poročilo je mogoče uporabljati za podaljšanje veljavnosti tipskih preskusov, ki se izvajajo na enem preskušancu z določenim naborom napetosti, na drug sklop stikalnih naprav iz iste družine z drugačnim naborom napetosti ali drugačno razporeditvijo komponent. Podpira izbiro reprezentativnih preskušancev, sestavljenih iz funkcionalnih enot iz družine stikalnih in krmilnih naprav, ki je usmerjena na optimizacijo tipskih preskusov za dosledno ugotavljanje skladnosti.
To tehnično poročilo uporablja kombinacijo smotrnih tehničnih in fizikalnih načel, izkušenj proizvajalcev in uporabnikov ter izračunov za vzpostavitev smernic za podaljšanje veljavnosti tipskih preskusov, ki zajemajo različne vidike zasnove in napetosti.

General Information

• Status: Published
• Publication Date: 04-Jul-2019
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: CLC/TC 17AC - High-voltage switchgear and controlgear
• Drafting Committee: CLC/TC 17AC - High-voltage switchgear and controlgear
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 05-Jul-2019
• Due Date: 29-Nov-2019
• Completion Date: 05-Jul-2019
• Ref Project: SIST-TP CLC IEC/TR 62271-307:2019 - High-voltage switchgear and controlgear - Part 307: Guidance for the extension of validity of type tests of AC metal and solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (CLC IEC/TR 62271-307:2019)

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2019
Visokonapetostne stikalne in krmilne naprave - 307. del: Navodilo za podaljšanje
veljavnosti preskusov tipa za izmenične (AC) stikalne in krmilne naprave v
kovinskih ohišjih in ohišjih iz trdih izolacijskih materialov za naznačene napetosti
nad 1 kV do vključno 52 kV (CLC IEC/TR 62271-307:2019)
High-voltage switchgear and controlgear - Part 307: Guidance for the extension of
validity of type tests of AC metal and solid-insulation enclosed switchgear and
controlgear for rated voltages above 1 kV and up to and including 52 kV (CLC IEC/TR
62271-307:2019)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 307: Leitfaden für die
Erweiterung des Geltungsbereichs von Typprüfungen von metall- und
isolierstoffgekapselten Wechselstrom-Schaltanlagen für Bemessungsspannungen über 1
kV und bis einschließlich 52 kV (CLC IEC/TR 62271-307:2019)
Appareillage à haute tension - Partie 307: Lignes directrices pour l'extension de validité
des essais de type d'appareillages en courant alternatif sous enveloppe métallique et
d’isolation solide pour tensions assignées supérieures à 1 kV et jusqu'à 52 kV inclus
(CLC IEC/TR 62271-307:2019)
Ta slovenski standard je istoveten z: CLC IEC/TR 62271-307:2019
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.

TECHNICAL REPORT CLC IEC/TR 62271-307

RAPPORT TECHNIQUE
TECHNISCHER BERICHT
July 2019
ICS 29.130.10
English Version
High-voltage switchgear and controlgear - Part 307: Guidance
for the extension of validity of type tests of AC metal and solid-
insulation enclosed switchgear and controlgear for rated
voltages above 1 kV and up to and including 52 kV
(IEC/TR 62271-307:2015)
Appareillage à haute tension - Partie 307: Lignes directrices Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil
pour l'extension de validité des essais de type 307: Leitfaden für die Erweiterung des Geltungsbereichs
d'appareillages en courant alternatif sous enveloppe von Typprüfungen von metall- und isolierstoffgekapselten
métallique et d'isolation solide pour tensions assignées Wechselstrom-Schaltanlagen für Bemessungsspannungen
supérieures à 1 kV et jusqu'à 52 kV inclus über 1 kV und bis einschließlich 52 kV
(IEC/TR 62271-307:2015) (IEC/TR 62271-307:2015)

This Technical Report was approved by CENELEC on 2019-06-17.

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

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. CLC IEC/TR 62271-307:2019 E

European foreword
This document (CLC IEC/TR 62271-307:2019) consists of the text of IEC/TR 62271-307:2015
prepared by SC 17C "Assemblies" of IEC/TC 17 "High-voltage switchgear and controlgear".
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice
The text of the International Standard IEC/TR 62271-307:2015 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60865-1 NOTE Harmonized as EN 60865-1
IEC 60071-1:2006 NOTE Harmonized as EN 60071-1:2006 (not modified)
IEC 60071-1:2006/A1:2010 NOTE Harmonized as EN 60071-1:2006/A1:2010 (not modified)

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-441 1984 International Electrotechnical Vocabulary. - -
Switchgear, controlgear and fuses
+ A1 2000  - -
IEC 62271-1 2007 High-voltage switchgear and controlgear -- EN 62271-1 2008
Part 1: Common specifications
+ A1 2011  + A1 2011
IEC 62271-200 2011 High-voltage switchgear and controlgear - EN 62271-200 2012
Part 200: AC metal-enclosed switchgear
and controlgear for rated voltages above 1
kV and up to and including 52 kV
IEC 62271-201 2014 High-voltage switchgear and controlgear - EN 62271-201 2014
Part 201: AC solid-insulation enclosed
switchgear and controlgear for rated
voltages above 1 kV and up to and
including 52 kV
IEC TR 62271-307 ®
Edition 1.0 2015-09
TECHNICAL
REPORT
RAPPORT
TECHNIQUE
colour
inside
High-voltage switchgear and controlgear –

Part 307: Guidance for the extension of validity of type tests of AC metal and

solid-insulation enclosed switchgear and controlgear for rated voltages above

1 kV and up to and including 52 kV

Appareillage à haute tension –

Partie 307: Lignes directrices pour l'extension de validité des essais de type

d'appareillages en courant alternatif sous enveloppe métallique et d’isolation

solide pour tensions assignées supérieures à 1 kV et jusqu'à 52 kV inclus

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10 ISBN 978-2-8322-2903-3

– 2 – IEC TR 62271-307:2015  IEC 2015
CONTENTS
FOREWORD . 5
1 General . 7
1.1 Scope . 7
1.2 Normative references . 7
2 Terms and definitions . 7
3 Use of extension criteria . 9
3.1 General . 9
3.2 Parameters for extension criteria . 10
3.3 Use of calculations . 10
3.3.1 General . 10
3.3.2 Temperature rise calculations . 11
3.3.3 Electric field calculations . 11
3.3.4 Mechanical stress calculations. 11
3.3.5 Short-circuit current calculations . 11
3.3.6 Internal arc pressure rise calculations . 12
3.4 Information needed for extension of type test validity . 12
4 Application of extension criteria . 12
4.1 Dielectric tests . 12
4.2 Temperature rise tests . 13
4.3 Mechanical tests . 15
4.4 Short-time and peak withstand current tests . 15
4.5 Making and breaking tests . 16
4.6 Internal arc fault tests . 17
4.6.1 General . 17
4.6.2 Extension criteria with respect to design . 17
4.6.3 Extension criteria with respect to ratings and installation conditions . 18
5 Extending the validity of type tests . 19
5.1 General . 19
5.2 Extension of validity of a test report to other functional units (situation a) . 20
5.3 Validation of a family by selection of test objects (situation b) . 21
5.3.1 General . 21
5.3.2 Mapping of the family . 21
5.3.3 Specification of test objects . 22
5.4 Validation of an assembly by existing test reports (situation c) . 22
5.5 Validation of a design modification (situation d) . 23
Annex A (informative) Rationale for the extension criteria . 24
A.1 General . 24
A.2 Dielectric tests . 24
A.2.1 General . 24
A.2.2 Clearances (Items 1 and 2) . 24
A.2.3 Insulating supports and material (Items 3 and 4) . 24
A.2.4 Live parts (Items 5 and 6) . 25
A.2.5 Open contact gap and isolating distance (Items 7 and 8) . 25
A.2.6 Minimum functional pressure for insulation (Item 9) . 25
A.3 Temperature rise tests . 25
A.3.1 General . 25

IEC TR 62271-307:2015  IEC 2015 – 3 –
A.3.2 Centre distance between phase conductors (Item 1) . 26
A.3.3 Phase to earth distance (Item 2) . 26
A.3.4 Enclosure and compartment volume (Item 3) . 26
A.3.5 Insulating gas (Item 4) . 27
A.3.6 Conductors (Items 5 and 6) . 27
A.3.7 Conductor joints and connections (Items 7, 8 and 9) . 27
A.3.8 Ventilation area of partitions and enclosure (Item 10) . 27
A.3.9 Power dissipation of components (Item 11) . 28
A.3.10 Insulating barriers (Item 12) . 28
A.3.11 Insulating coating of conductors and enclosures (Item 13 and 14) . 28
A.3.12 Insulating material in contact with conductors (Item 15) . 29
A.4 Mechanical tests . 29
A.4.1 General . 29
A.4.2 Shutter systems (Item 1) . 29
A.4.3 Contacts of removable parts (Item 2) . 30
A.4.4 Interlocking systems (Items 3 and 4). 30
A.5 Short-
...