SIST EN 60137:2008
(Main)Insulated bushings for alternating voltages above 1 000 V (IEC 60137:2008)
Insulated bushings for alternating voltages above 1 000 V (IEC 60137:2008)
This International Standard specifies the characteristics and tests for insulated bushings. This standard is applicable to bushings, as defined in Clause 3, intended for use in electrical apparatus, machinery, transformers, switchgear and installations for three-phase alternating current systems, having highest voltage for equipment above 1 000 V and power frequencies of 15 Hz up to and including 60 Hz. Subject to special agreement between purchaser and supplier, this standard may be applied, in part or as a whole, to the following: - bushings used in other than three-phase systems; - bushings for high-voltage direct current systems; - bushings for testing transformers; - bushings for capacitors. Special requirements and tests for transformer bushings in this standard apply also to reactor bushings. This standard is applicable to bushings made and sold separately. Bushings which are a part of an apparatus and which cannot be tested according to this standard should be tested with the apparatus of which they form part.
Isolierte Durchführungen für Wechselspannungen über 1 000 V (IEC 60137:2008)
Traversées isolées pour tensions alternatives supérieures à 1 000 V (CEI 60137:2008)
La CEI 60137:2008 donne les caractéristiques et les essais applicables aux traversées isolées, destinées à être utilisées dans les dispositifs électriques, les machines, les transformateurs, les appareillages de commutation et les installations pour des systèmes à courant alternatif triphasé possédant une tension plus élevée pour le matériel dépassant 1 000 V et des fréquences industrielles comprises entre 15 Hz et 60 Hz (inclus). Les conditions spéciales et les essais concernant les traversées pour transformateurs se trouvant dans cette norme s'appliquent également aux traversées pour réacteurs. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - La tension de longue durée à fréquence industrielle pour les traversées des transformateurs; - Des exigences particulières pour les essais de type et d'acceptation applicables aux traversées des transformateurs et des appareillages sous enveloppe métallique à isolation gazeuse (GIS); - Des niveaux d'isolement spécifiques pour les traversées destinées aux transformateurs et aux GIS; - Conformément au Guide CEI 111, des articles relatifs à la sécurité et à l'environnement ont été ajoutés; et - La procédure de correction d'altitude a été révisée (> 1 000 m).
Izolirani skoznjiki za izmenične napetosti nad 1000 V (IEC 60137:2008)
Ta mednarodni standard določa lastnosti in preskuse za izolirane skoznjike.
Ta standard se uporablja za skoznjike, kot so opredeljeni v točki 3, za uporabo v električnih napravah, strojih, transformatorjih, stikalnih napravah in elementih trifaznih električnih sistemov izmeničnega toka z najvišjo napetostjo nad 1000 V in omrežnimi frekvencami od 15 Hz do vključno 60 Hz.
Na podlagi dogovora med kupcem in dobaviteljem se ta standard lahko delno ali v celoti uporablja za:
• skoznjike, ki se uporabljajo v sistemih, ki niso trifazni električni sistemi,
• skoznjike za visokonapetostne sisteme enosmernega toka,
• skoznjike za preskušanje transformatorjev,
• skoznjike za kondenzatorje.
Posebne zahteve in preskusi za skoznjike za transformatorje iz tega standarda se lahko uporabljajo tudi za reaktorske skoznjike.
Ta standard se uporablja za skoznjike, ki so proizvedeni in se prodajajo ločeno od ostale opreme. Skoznjike, ki so del naprave in jih ni mogoče preskusiti skladno s tem standardom, je treba preskusiti z napravo, katere del so.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60137:2008
01-december-2008
1DGRPHãþD
SIST EN 60137:2004
,]ROLUDQLVNR]QMLNL]DL]PHQLþQHQDSHWRVWLQDG9 ,(&
Insulated bushings for alternating voltages above 1 000 V (IEC 60137:2008)
Isolierte Durchführungen für Wechselspannungen über 1 000 V (IEC 60137:2008)
Traversées isolées pour tensions alternatives supérieures à 1 000 V (CEI 60137:2008)
Ta slovenski standard je istoveten z: EN 60137:2008
ICS:
29.080.20 Skoznjiki Bushings
SIST EN 60137:2008 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60137:2008
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SIST EN 60137:2008
EUROPEAN STANDARD
EN 60137
NORME EUROPÉENNE
October 2008
EUROPÄISCHE NORM
ICS 29.080.20 Supersedes EN 60137:2003
English version
Insulated bushings for alternating voltages above 1 000 V
(IEC 60137:2008)
Traversées isolées pour tensions Isolierte Durchführungen
alternatives supérieures à 1 000 V für Wechselspannungen über 1 000 V
(CEI 60137:2008) (IEC 60137:2008)
This European Standard was approved by CENELEC on 2008-10-01. 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, Bulgaria, 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
© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60137:2008 E
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SIST EN 60137:2008
EN 60137:2008 - 2 -
Foreword
The text of document 36A/134/FDIS, future edition 6 of IEC 60137, prepared by SC 36A, Insulated
bushings, of IEC TC 36, Insulators, was submitted to the IEC-CENELEC parallel vote and was approved
by CENELEC as EN 60137 on 2008-10-01.
This European Standard supersedes EN 60137:2003.
EN 60137:2008 includes the following significant technical changes with respect to EN 60137:2003:
– long duration power-frequency voltage for transformer bushings;
– special requirements for type and acceptance tests applicable to transformer and GIS bushings;
– specific insulation levels for bushings fitted to transformers and GIS;
– according to IEC Guide 111, clauses relating to safety and the environment have been added;
– the altitude correction procedure has been revised ( > 1 000 m).
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) 2009-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-10-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60137:2008 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 60076-1 NOTE Harmonized as EN 60076-1:1997 (modified).
IEC 60076-2 NOTE Harmonized as EN 60076-2:1997 (modified).
IEC 60076-3 NOTE Harmonized as EN 60076-3:2001 (not modified).
IEC 60296 NOTE Harmonized as EN 60296:2004 (not modified).
IEC 60507 NOTE Harmonized as EN 60507:1993 (not modified).
IEC 60517 NOTE Harmonized as EN 60517:1996 (not modified).
IEC 60694 NOTE Harmonized as EN 60694:1996 (not modified).
IEC 60836 NOTE Harmonized as EN 60836:2005 (not modified).
IEC 60867 NOTE Harmonized as EN 60867:1994 (not modified).
IEC 62271-203 NOTE Harmonized as EN 62271-203:2004 (not modified).
__________
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SIST EN 60137:2008
- 3 - EN 60137:2008
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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 When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
1)
IEC 60038 (mod) 1983 IEC standard voltages HD 472 S1 1989
- - + corr. February 2002
- - A1 1995
A1 1994
A2 1997
IEC 60050-212 1990 International Electrotechnical Vocabulary - -
(IEV) -
Chapter 212: Insulating solids, liquids and
gases
2) 3)
IEC 60059 - IEC standard current ratings EN 60059 1999
2) 3)
IEC 60060-1 - High-voltage test techniques - HD 588.1 S1 1991
Part 1: General definitions and test
requirements
3)
IEC 60068-2-17 1994 Environmental testing - EN 60068-2-17 1994
Part 2: Tests - Test Q: Sealing
2) 3)
IEC 60071-1 - Insulation co-ordination - EN 60071-1 2006
Part 1: Definitions, principles and rules
2) 3)
IEC 60076-5 - Power transformers - EN 60076-5 2006
Part 5: Ability to withstand short circuit
2)
IEC 60076-7 - Power transformers - - -
Part 7: Loading guide for oil-immersed power
transformers
2) 3)
IEC 60216-2 - Electrical insulating materials - Thermal EN 60216-2 2005
endurance properties -
Part 2: Determination of thermal endurance
properties of electrical insulating materials -
Choice of test criteria
2) 3)
IEC 60270 - High-voltage test techniques - Partial EN 60270 2001
discharge measurements
2) 3)
IEC 60376 - Specification of technical grade sulfur EN 60376 2005
hexafluoride (SF ) for use in electrical
6
equipment
2) 3)
IEC 60480 - Guidelines for the checking and treatment of EN 60480 2004
sulphur hexafluoride (SF ) taken from
6
electrical equipment and specification for its
re-use
1)
The title of HD 472 S1 is: Nominal voltages for low voltage public electricity supply systems.
2)
Undated reference.
3)
Valid edition at date of issue.
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SIST EN 60137:2008
EN 60137:2008 - 4 -
Publication Year Title EN/HD Year
2) 3)
IEC 60505 - Evaluation and qualification of electrical EN 60505 2004
insulation systems
2)
IEC/TR 60815 - Guide for the selection of insulators in respect - -
of polluted conditions
2) 3)
IEC 61462 - Composite hollow insulators - EN 61462 2007
Pressurized and unpressurized insulators for
use in electrical equipment with rated voltage
greater than 1 000 V - Definitions, test
methods, acceptance criteria and design
recommendations
2)
IEC 61463 - Bushings - Seismic qualification - -
2) 3)
IEC 62155 (mod) - Hollow pressurized and unpressurized EN 62155 2003
ceramic and glass insulators for use in
electrical equipment with rated voltages
greater than 1 000 V
2) 3)
IEC 62217 - Polymeric insulators for indoor and outdoor EN 62217 2006
use with a nominal voltage > 1 000 V - + corr. December 2006
General definitions, test methods and
acceptance criteria
IEC 62271 Series High-voltage switchgear and controlgear EN 62271 Series
2) 4)
IEC 62271-1 - High-voltage switchgear and controlgear - EN 62271-1 200X
Part 1: Common specifications
2)
IEC Guide 109 - Environmental aspects - Inclusion in - -
electrotechnical product standards
2)
IEC Guide 111 - Electrical high-voltage equipment in high-- -
voltage substations - Common
recommendations for product standards
CISPR 16-1 Series Specification for radio disturbance and EN 55016-1 Series
immunity measuring apparatus and methods -
Part 1: Radio disturbance and immunity
measuring apparatus
2)
CISPR 18-2 - Radio interference characteristics of overhead - -
power lines and high-voltage equipment -
Part 2: Methods of measurement and
procedure for determining limits
4)
To be ratified.
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SIST EN 60137:2008
IEC 60137
Edition 6.0 2008-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Insulated bushings for alternating voltages above 1 000 V
Traversées isolées pour tensions alternatives supérieures à 1 000 V
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
XA
CODE PRIX
ICS 29.080.20 ISBN 2-8318-9916-8
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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SIST EN 60137:2008
– 2 – 60137 © IEC:2008
CONTENTS
FOREWORD.6
INTRODUCTION.8
1 Scope.9
2 Normative references .9
3 Terms and definitions .10
4 Ratings.16
4.1 Standard values of highest voltage for equipment (U ).16
m
4.2 Standard values of rated current (I ).16
r
4.3 Standard values of rated thermal short-time current (I ).16
th
4.4 Standard values of rated dynamic current (I ) .17
d
4.5 Minimum withstand values of cantilever load .17
4.6 Angle of mounting .18
4.7 Minimum nominal creepage distance .18
4.8 Temperature limits and temperature rise .18
4.9 Standard insulation levels .20
4.10 Test tap on transformer bushings .22
5 Operating conditions .22
5.1 Temporary overvoltages .22
5.2 Altitude.22
5.3 Temperature of ambient air and immersion media .23
5.4 Seismic conditions .24
6 Ordering information and markings .24
6.1 Enumeration of characteristics .24
6.1.1 Application .24
6.1.2 Classification of bushings .24
6.1.3 Ratings.24
6.1.4 Operating conditions.24
6.1.5 Design.25
6.2 Markings .26
7 Test requirements .27
7.1 General requirements.27
7.2 Test classification.27
7.2.1 Type tests .28
7.2.2 Routine tests .29
7.2.3 Special tests.29
7.3 Condition of bushings during dielectric and thermal tests .29
8 Type tests .31
8.1 Dry or wet power-frequency voltage withstand test .31
8.1.1 Applicability .31
8.1.2 Test method and requirements .31
8.1.3 Acceptance .31
8.2 Long duration power-frequency voltage withstand test (ACLD) .32
8.2.1 Applicability .32
8.2.2 Test method and requirements .32
8.2.3 Acceptance .32
8.3 Dry lightning impulse voltage withstand test (BIL).33
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60137 © IEC:2008 – 3 –
8.3.1 Applicability .33
8.3.2 Test method and requirements .33
8.3.3 Acceptance .33
8.4 Dry or wet switching impulse voltage withstand test (SIL).34
8.4.1 Applicability .34
8.4.2 Test method and requirements .34
8.4.3 Acceptance .34
8.5 Thermal stability test .35
8.5.1 Applicability .35
8.5.2 Test method and requirements .35
8.5.3 Acceptance .36
8.6 Electromagnetic compatibility tests (EMC).36
8.6.1 Emission test.36
8.6.2 Immunity test.37
8.7 Temperature rise test .37
8.7.1 Applicability .37
8.7.2 Test method and requirements .37
8.7.3 Acceptance .39
8.8 Verification of thermal short-time current withstand .39
8.8.1 Applicability .39
8.8.2 Verification method and requirements.39
8.8.3 Acceptance .40
8.9 Cantilever load withstand test.41
8.9.1 Applicability .41
8.9.2 Test method and requirements .41
8.9.3 Acceptance .41
8.10 Tightness test on liquid-filled, compound-filled and liquid-insulated bushings .41
8.10.1 Applicability .41
8.10.2 Test method and requirements .42
8.10.3 Acceptance .42
8.11 Internal pressure test on gas-filled, gas-insulated and gas-impregnated
bushings .42
8.11.1 Applicability .42
8.11.2 Test method and requirements .42
8.11.3 Acceptance .42
8.12 External pressure test on partly or completely gas-immersed bushings .42
8.12.1 Applicability .42
8.12.2 Test method and requirements .42
8.12.3 Acceptance .43
8.13 Verification of dimensions .43
8.13.1 Applicability .43
8.13.2 Acceptance .43
9 Routine tests .43
9.1 Measurement of dielectric dissipation factor (tan δ) and capacitance at
43
ambient temperature .
9.1.1 Applicability .43
9.1.2 Test method and requirements .43
9.1.3 Acceptance .43
9.2 Dry lightning impulse voltage withstand test (BIL).44
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SIST EN 60137:2008
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9.2.1 Applicability .44
9.2.2 Test method and requirements .44
9.2.3 Acceptance .44
9.3 Dry power-frequency voltage withstand test .44
9.3.1 Applicability .44
9.3.2 Test method and requirements .45
9.3.3 Acceptance .45
9.4 Measurement of partial discharge quantity .45
9.4.1 Applicability .45
9.4.2 Test method and requirements .45
9.4.3 Acceptance .45
9.5 Tests of tap insulation .46
9.5.1 Applicability and test requirements .46
9.5.2 Acceptance .46
9.6 Internal pressure test on gas-filled, gas-insulated and gas-impregnated
bushings .46
9.6.1 Applicability .46
9.6.2 Test method and requirements .47
9.6.3 Acceptance .47
9.7 Tightness test on liquid-filled, compound-filled and liquid-insulated bushings .47
9.7.1 Applicability .47
9.7.2 Test method and requirements .47
9.7.3 Acceptance .47
9.8 Tightness test on gas-filled, gas-insulated and gas-impregnated bushings .47
9.8.1 Applicability .47
9.8.2 Test method and requirements .47
9.8.3 Acceptance .48
9.9 Tightness test at the flange or other fixing device.48
9.9.1 Applicability .48
9.9.2 Test method and requirements .48
9.9.3 Acceptance .48
9.10 Visual inspection and dimensional check.49
9.10.1 Applicability .49
9.10.2 Acceptance .49
10 Requirements and tests for bushings of highest voltages for equipment equal to or
less than 52 kV made of ceramic, glass or inorganic materials, resin or combined
insulation.49
10.1 Temperature requirements .49
10.2 Level of immersion medium .49
10.3 Markings .49
10.4 Test requirements .50
10.4.1 Type tests .50
10.4.2 Routine tests .50
11 Recommendations for transport, storage, erection, operation and maintenance.51
11.1 Conditions during transport, storage and installation .51
11.2 Installation .51
11.3 Unpacking and lifting.51
11.4 Assembly .52
11.4.1 Mounting .52
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60137 © IEC:2008 – 5 –
11.4.2 Connections .52
11.4.3 Final installation inspection.52
11.5 Operation .53
11.6 Maintenance.53
11.6.1 General .53
11.6.2 Recommendation for the manufacturer .53
11.6.3 Recommendations for the user .53
11.6.4 Failure report.54
12 Safety.55
12.1 Electrical aspects .55
12.2 Mechanical aspects.55
12.3 Thermal aspects.55
13 Environmental aspects .55
Bibliography.57
Figure 1 – Altitude correction factor .23
Figure 2 – Marking plate for bushings for highest voltage for equipment greater than
100 kV (see 6.2) .26
Figure 3 – Marking plate for bushings for highest voltage for equipment equal to or
less than 100 kV, except for bushings for which Figure 2 is applicable (see 6.2).27
Figure 4 – Marking plate for bushings for highest voltage for equipment equal to or
less than 52 kV made of ceramic, glass or inorganic materials, resin or combined
insulation (see 10.3) .27
Figure 5 – Voltage profile for long duration test ACLD .32
Table 1 – Minimum values of cantilever withstand load (see 4.5 and 8.9).17
Table 2 – Maximum values of temperature and temperature rise above ambient air
(see 4.8) .19
Table 3 – Temperature of ambient air and immersion media (see 5.3) .20
Table 4 – Insulation levels for highest voltage for equipment (see 4.9, 8.1, 8.3, 8.4, 9.2
and 9.3) .21
Table 5 – Applicability of
...
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