Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems (IEC 60099-4:2014)

IEC 60099-4:2014 applies to non-linear metal-oxide resistor type surge arresters without spark gaps designed to limit voltage surges on a.c. power circuits with Us above 1 kV. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. The numerous changes between the second and third editions are listed in the Foreward of the document.
Keywords: testing of gapless metal-oxide surge arresters for a.c.power systems

Überspannungsableiter - Teil 4: Metalloxidableiter ohne Funkenstrecken für Wechselspannungsnetze (IEC 60099-4:2014)

Parafoudres - Partie 4: Parafoudres à oxyde métallique sans éclateur pour réseaux à courant alternatif (IEC 60099-4:2014)

L'IEC 60099-4:2014 s'applique aux parafoudres à résistance variable à oxyde métallique sans éclateur conçus pour limiter les surtensions sur les circuits d'alimentation à courant alternatif avec Us supérieure à 1 kV. Cette troisième édition annule et remplace la deuxième édition parue en 2009. Cette édition constitue une révision technique. Les nombreux changements entre les deuxième et troisième éditions sont répertoriés dans l'avant-propos du document.
Mots clés: essais des parafoudres sans éclateur à oxyde métallique utilisés sur les réseaux de puissance en courant alternatif

Prenapetostni odvodniki - 4. del: Kovinskooksidni prenapetostni odvodniki brez iskrišč za sisteme z izmenično napetostjo (IEC 60099-4:2014)

Standard EN IEC 60099-4 se uporablja za kovinskooksidne prenapetostne odvodnike z nelinearnimi upori brez iskrišč za omejevanje valovnih napetostnih udarov v izmeničnih močnostnih tokokrogih z Us nad 1 kV.

General Information

Status
Published
Publication Date
22-Oct-2014
Technical Committee
Current Stage
6100 - Translation of adopted SIST standards (Adopted Project)
Start Date
28-Sep-2023
Due Date
26-Sep-2024
Completion Date
02-Sep-2024

Relations

Overview

EN 60099-4:2014 (identical to IEC 60099-4:2014) specifies requirements and type‑test procedures for metal‑oxide surge arresters without gaps (gapless MO arresters) intended to limit over‑voltages on a.c. power systems with service voltage (Us) above 1 kV. This third edition supersedes earlier editions and is a technical revision that consolidates modern performance, safety and testing expectations for gapless MO arresters used in substations and distribution networks.

Keywords: EN 60099-4:2014, IEC 60099-4:2014, metal-oxide surge arresters without gaps, testing of gapless metal-oxide surge arresters for a.c. power systems.

Key Topics and Technical Requirements

The standard defines classification, ratings and a comprehensive suite of requirements and type tests, including:

  • Identification and classification: marking, rated voltages, frequencies and nominal discharge currents.
  • Service conditions: normal and abnormal environmental and operational conditions.
  • Electrical performance tests:
    • Insulation withstand (power‑frequency, lightning and switching impulse tests)
    • Reference voltage and residual voltage measurements (steep current impulse, lightning and switching impulses)
    • Internal partial‑discharge limits and measurement procedures
  • Thermal and long‑term stability:
    • Thermal stability and heat dissipation behavior
    • Long‑term stability under continuous operating voltage
    • Repetitive charge transfer (Qrs) and operating duty tests (energy/charge endurance)
  • Mechanical and safety features:
    • Short‑circuit performance, mechanical loads, bending moment and environmental resistance
    • Disconnector design, operation and withstand tests
    • Seal integrity (leak rate) and end‑of‑life criteria
  • Testing framework: test sample requirements, measuring equipment accuracy, type (design) tests and evaluation criteria.

Practical Applications and Users

EN 60099-4:2014 is essential for professionals involved in specification, manufacture, testing and deployment of surge arresters:

  • Manufacturers - design validation, production type‑testing and product documentation.
  • Test laboratories and certification bodies - performing type tests and conformity assessment for market access.
  • Utilities and substation designers - selecting arresters that meet system insulation coordination and protection requirements.
  • Specifiers and procurement teams - creating technical specifications and verifying supplier compliance.
  • Consulting engineers - ensuring arrester performance in insulation coordination studies and lifecycle planning.

Using this standard ensures reliable surge protection performance, consistent testing methodology and alignment with European/CENELEC harmonized practice.

Related Standards

EN 60099-4 references and complements other standards used in high‑voltage testing and insulation coordination, for example:

  • EN/IEC 60060-1/-2 (high‑voltage test techniques)
  • EN 60099-1, EN 60099-5 (other parts of surge arresters series)
  • EN 60071‑1/‑2 (insulation coordination)
  • Environmental and component standards such as EN 60068, EN 60507, EN 62217 and relevant switchgear standards.

Compliance with EN 60099-4:2014 supports robust surge protection design and standardized testing of gapless metal‑oxide surge arresters for a.c. power systems.

Standard
SIST EN 60099-4:2014
English language
172 pages
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Standard – translation
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Standards Content (Sample)


SLOVENSKI STANDARD
01-november-2014
1DGRPHãþD
SIST EN 60099-4:2005
SIST EN 60099-4:2005/A1:2007
SIST EN 60099-4:2005/A2:2009
3UHQDSHWRVWQLRGYRGQLNLGHO.RYLQVNRRNVLGQLSUHQDSHWRVWQLRGYRGQLNLEUH]
LVNULãþ]DVLVWHPH]L]PHQLþQRQDSHWRVWMR ,(&
Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems
Ta slovenski standard je istoveten z: EN 60099-4:2014
ICS:
29.240.10 Transformatorske postaje. Substations. Surge arresters
Prenapetostni odvodniki
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60099-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2014
ICS 29.240.10; 29.120.50 Supersedes EN 60099-4:2004
English Version
Surge arresters - Part 4: Metal-oxide surge arresters without
gaps for a.c. systems
(IEC 60099-4:2014)
Parafoudres - Partie 4: Parafoudres à oxyde métallique Überspannungsableiter - Teil 4: Metalloxidableiter ohne
sans éclateur pour réseaux à courant alternatif Funkenstrecken für Wechselspannungsnetze
(CEI 60099-4:2014) (IEC 60099-4:2014)
This European Standard was approved by CENELEC on 2014-08-04. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60099-4:2014 E
Foreword
The text of document 37/416/FDIS, future edition 3 of IEC 60099-4, prepared by IEC/TC 37 "Surge
arresters" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
– latest date by which the document has to be implemented at (dop) 2015-05-04
national level by publication of an identical national
standard or by endorsement
– latest date by which the national standards conflicting with (dow) 2017-08-04
the document have to be withdrawn

This document supersedes EN 60099-4:2004.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60099-4:2014 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 60068-2-17 NOTE Harmonized as EN 60068-2-17.
IEC 60099-1 NOTE Harmonized as EN 60099-1.
IEC 60099-5:2013 NOTE Harmonized as EN 60099-5:2013 (not modified).
IEC 60721-3-2 NOTE Harmonized as EN 60721-3-2.
IEC 62271-202:2006 NOTE Harmonized as EN 62271-202:2007 (not modified).
ISO 3274 NOTE Harmonized as EN ISO 3274.

- 3 - EN 60099-4:2014
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When 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 60060-1 -  High-voltage test techniques - EN 60060-1 -
Part 1: General definitions and test
requirements
IEC 60060-2 -  High-voltage test techniques - EN 60060-2 -
Part 2: Measuring systems
IEC 60068-2-11 1981 Environmental testing - EN 60068-2-11 1999
Part 2: Tests - Test Ka: Salt mist
IEC 60068-2-14 -  Environmental testing - EN 60068-2-14 -
Part 2-14: Tests - Test N: Change of
temperature
IEC 60071-1 -  Insulation co-ordination - EN 60071-1 -
Part 1: Definitions, principles and rules
IEC 60071-2 1996 Insulation co-ordination - EN 60071-2 1997
Part 2: Application guide
IEC 60270 -  High-voltage test techniques - EN 60270 -
Partial discharge measurements
IEC 60507 2013 Artificial pollution tests on high-voltage EN 60507 2014
ceramic and glass insulators to be used on
a.c. systems
IEC 62217 -  Polymeric HV insulators for indoor and EN 62217 -
outdoor use - General definitions, test
methods and acceptance criteria
IEC 62271-1 2007 High-voltage switchgear and controlgear - EN 62271-1 2008
Part 1: Common specifications
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 62271-203 2011 High-voltage switchgear and controlgear - EN 62271-203 2012
Part 203: Gas-insulated metal-enclosed
switchgear for rated voltages above 52 kV

Publication Year Title EN/HD Year
IEC/TS 60815-1 2008 Selection and dimensioning of high-voltage - -
insulators intended for use in polluted
conditions -
Part 1: Definitions, information and general
principles
IEC/TS 60815-2 2008 Selection and dimensioning of high-voltage - -
insulators intended for use in polluted
conditions -
Part 2: Ceramic and glass insulators for
a.c. systems
ISO 4287 -  Geometrical Product Specifications (GPS) - EN ISO 4287 -
Surface texture: Profile method - Terms,
definitions and surface texture parameters
ISO 4892-1 -  Plastics - Methods of exposure to EN ISO 4892-1 -
laboratory light sources -
Part 1: General guidance
ISO 4892-2 -  Plastics - Methods of exposure to EN ISO 4892-2 -
laboratory light sources -
Part 2: Xenon-arc lamps
ISO 4892-3 -  Plastics - Methods of exposure to EN ISO 4892-3 -
laboratory light sources -
Part 3: Fluorescent UV lamps
CISPR/TR 18-2 -  Radio interference characteristics of - -
overhead power lines and high-voltage
equipment -
Part 2: Methods of measurement and
procedure for determining limits

IEC 60099-4 ®
Edition 3.0 2014-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Surge arresters –
Part 4: Metal-oxide surge arresters without gaps for a.c. systems

Parafoudres –
Partie 4: Parafoudres à oxyde métallique sans éclateur pour réseaux à courant

alternatif
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XH
ICS 29.120.50; 29.240.10 ISBN 978-2-8322-1646-0

– 2 – IEC 60099-4:2014 © IEC 2014
CONTENTS
FOREWORD . 11
INTRODUCTION . 14
1 Scope . 15
2 Normative references . 15
3 Terms and definitions . 16
4 Identification and classification . 26
4.1 Arrester identification . 26
4.2 Arrester classification . 26
5 Standard ratings and service conditions . 27
5.1 Standard rated voltages . 27
5.2 Standard rated frequencies . 27
5.3 Standard nominal discharge currents . 27
5.4 Service conditions . 27
5.4.1 Normal service conditions . 27
5.4.2 Abnormal service conditions . 27
6 Requirements . 28
6.1 Insulation withstand . 28
6.2 Reference voltage . 28
6.3 Residual voltages . 28
6.4 Internal partial discharges . 29
6.5 Seal leak rate. 29
6.6 Current distribution in a multi-column arrester . 29
6.7 Thermal stability . 29
6.8 Long term stability under continuous operating voltage . 29
6.9 Heat dissipation behaviour of test sample . 29
6.10 Repetitive charge transfer withstand . 29
6.11 Operating duty . 29
6.12 Power-frequency voltage versus time characteristics of an arrester . 29
6.13 Short-circuit performance . 30
6.14 Disconnector . 30
6.14.1 Disconnector withstand . 30
6.14.2 Disconnector operation . 30
6.15 Requirements on internal grading components . 30
6.16 Mechanical loads . 31
6.16.1 General . 31
6.16.2 Bending moment . 31
6.16.3 Resistance against environmental stresses . 31
6.16.4 Insulating base and mounting bracket . 31
6.16.5 Mean value of breaking load (MBL). 31
6.16.6 Electromagnetic compatibility . 31
6.17 End of life . 31
6.18 Lightning impulse discharge capability . 31
7 General testing procedure . 32
7.1 Measuring equipment and accuracy . 32
7.2 Reference voltage measurements . 32

IEC 60099-4:2014 © IEC 2014 – 3 –
7.3 Test samples . 32
7.3.1 General . 32
7.3.2 Arrester section requirements . 33
8 Type tests (design tests) . 34
8.1 General . 34
8.2 Insulation withstand tests . 35
8.2.1 General . 35
8.2.2 Tests on individual unit housings . 36
8.2.3 Tests on complete arrester assemblies . 36
8.2.4 Ambient air conditions during tests . 36
8.2.5 Wet test procedure . 36
8.2.6 Lightning impulse voltage test . 37
8.2.7 Switching impulse voltage test . 37
8.2.8 Power-frequency voltage test. 37
8.3 Residual voltage tests . 38
8.3.1 General . 38
8.3.2 Steep current impulse residual voltage test . 38
8.3.3 Lightning impulse residual voltage test . 39
8.3.4 Switching impulse residual voltage test . 39
8.4 Test to verify long term stability under continuous operating voltage . 39
8.4.1 General . 39
8.4.2 MO resistor elements stressed below U . 40
ref
8.4.3 Test procedure for MO resistor elements stressed at or above U . 41
ref
8.5 Test to verify the repetitive charge transfer rating, Qrs . 44
8.5.1 General . 44
8.5.2 Test procedure . 45
8.5.3 Test evaluation . 46
8.5.4 Rated values of repetitive charge transfer rating, Q . 46
rs
8.6 Heat dissipation behaviour of test sample . 47
8.6.1 General . 47
8.6.2 Arrester section requirements . 47
8.6.3 Procedure to verify thermal equivalency between complete arrester and
arrester section . 47
8.7 Operating duty test . 47
8.7.1 General . 47
8.7.2 Test procedure . 48
8.7.3 Rated thermal energy and charge values, W and Q . 51
th th
8.8 Power-frequency voltage-versus-time test . 52
8.8.1 General . 52
8.8.2 Test samples . 53
8.8.3 Initial measurements . 54
8.8.4 Test procedure . 54
8.8.5 Test evaluation . 55
8.9 Tests of arrester disconnector . 55
8.9.1 General . 55
8.9.2 Operating withstand test . 55
8.9.3 Disconnector operation . 56
8.9.4 Mechanical tests . 57
8.9.5 Temperature cycling and seal pumping test . 58

– 4 – IEC 60099-4:2014 © IEC 2014
8.10 Short-circuit tests . 58
8.10.1 General . 58
8.10.2 Preparation of the test samples . 59
8.10.3 Mounting of the test sample . 63
8.10.4 High-current short-circuit tests . 64
8.10.5 Low-current short-circuit test . 67
8.10.6 Evaluation of test results . 67
8.11 Test of the bending moment . 67
8.11.1 General . 67
8.11.2 Overview . 67
8.11.3 Sample preparation . 68
8.11.4 Test procedure . 68
8.11.5 Test evaluation . 68
8.11.6 Test on insulating base and mounting bracket . 69
8.12 Environmental tests . 69
8.12.1 General . 69
8.12.2 Sample preparation . 69
8.12.3 Test procedure . 69
8.12.4 Test evaluation . 70
8.13 Seal leak rate test . 70
8.13.1 General . 70
8.13.2 Sample preparation . 70
8.13.3 Test procedure . 70
8.13.4 Test evaluation . 70
8.14 Radio interference voltage (RIV) test . 70
8.15 Test to verify the dielectric withstand of internal components . 72
8.15.1 General . 72
8.15.2 Test procedure . 72
8.15.3 Test evaluation . 72
8.16 Test of internal grading components . 72
8.16.1 Test to verify long term stability under continuous operating voltage . 72
8.16.2 Thermal cyclic test . 73
9 Routine tests and acceptance tests . 74
9.1 Routine tests. 74
9.2 Acceptance tests . 75
9.2.1 Standard acceptance tests . 75
9.2.2 Special thermal stability test . 76
10 Test requirements on polymer-housed surge arresters . 76
10.1 Scope . 76
10.2 Normative references . 76
10.3 Terms and definitions . 76
10.4 Identification and classification . 76
10.5 Standard ratings and service conditions . 76
10.6 Requirements . 76
10.7 General testing procedure . 77
10.8 Type tests (design tests) . 77
10.8.1 General . 77
10.8.2 Insulation withstand tests . 77

IEC 60099-4:2014 © IEC 2014 – 5 –
10.8.3 Residual voltage tests . 77
10.8.4 Test to verify long term stability under continuous operating voltage . 78
10.8.5 Test to verify the repetitive charge transfer rating, Q . 78
rs
10.8.6 Heat dissipation behaviour of test sample . 78
10.8.7 Operating duty tests . 78
10.8.8 Power frequency voltage-versus-time test. 78
10.8.9 Tests of arrester disconnector . 79
10.8.10 Short-circuit tests . 79
10.8.11 Test of the bending moment . 85
10.8.12 Environmental tests . 92
10.8.13 Seal leak rate test . 92
10.8.14 Radio interference voltage (RIV) test . 92
10.8.15 Test to verify the dielectric withstand of internal components . 92
10.8.16 Test of internal grading components . 92
10.8.17 Weather ageing test. 92
10.9 Routine tests. 94
11 Test requirements on gas-insulated metal enclosed arresters (GIS-arresters) . 94
11.1 Scope . 94
11.2 Normative references . 94
11.3 Terms and definitions . 94
11.4 Identification and classification . 94
11.5 Standard ratings and service conditions . 95
11.6 Requirements . 95
11.6.1 Withstand voltages . 95
11.7 General testing procedures . 98
11.8 Type tests (design tests) . 98
11.8.1 General . 98
11.8.2 Insulation withstand tests . 98
11.8.3 Residual voltage tests . 101
11.8.4 Test to verify long term stability under continuous operating voltage . 101
11.8.5 Test to verify the repetitive charge transfer rating, Q . 101
rs
11.8.6 Heat dissipation behaviour of test sample . 101
11.8.7 Operating duty tests . 101
11.8.8 Power frequency voltage-versus-time test. 101
11.8.9 Tests of arrester disconnector . 101
11.8.10 Short-circuit tests . 101
11.8.11 Test of the bending moment . 101
11.8.12 Environmental tests . 102
11.8.13 Seal leak rate test . 102
11.8.14 Radio interference voltage (RIV) test . 102
11.8.15 Test to verify the dielectric withstand of internal components . 102
11.8.16 Test of internal grading components . 102
11.9 Routine tests. 102
11.10 Test after erection on site . 102
12 Separable and dead-front arresters . 102
12.1 Scope . 102
12.2 Normative references . 103
12.3 Terms and definitions . 103

– 6 – IEC 60099-4:2014 © IEC 2014
12.4 Identification and classification . 103
12.5 Standard ratings and service conditions . 103
12.6 Requirements . 103
12.7 General testing procedure . 104
12.8 Type tests (design tests) . 104
12.8.1 General . 104
12.8.2 Insulation withstand tests . 104
12.8.3 Residual voltage tests . 106
12.8.4 Test to verify long term stability under continuous operating voltage . 106
12.8.5 Test to verify the repetitive charge transfer rating, Q . 107
rs
12.8.6 Heat dissipation behaviour of test sample . 107
12.8.7 Operating duty tests . 107
12.8.8 Power-frequency voltage versus time test . 108
12.8.9 Tests of disconnector . 108
12.8.10 Short-circuit test . 108
12.8.11 Test of the bending moment . 109
12.8.12 Environmental tests . 109
12.8.13 Seal leak rate test . 109
12.8.14 Radio interference voltage (RIV) test . 109
12.8.15 Test to verify the dielectric withstand of internal components . 110
12.8.16 Test of internal grading components . 110
12.8.17 Internal partial discharge test. 110
12.9 Routine tests and acceptance tests . 110
13 Liquid-immersed arresters . 110
13.1 Scope . 110
13.2 Normative references . 111
13.3 Terms and definitions . 111
13.4 Identification and classification . 111
13.5 Standard ratings and service conditions . 111
13.6 Requirements . 111
13.7 General testing procedure . 112
13.8 Type tests (design tests) . 112
13.8.1 General . 112
13.8.2 Insulation withstand tests . 112
13.8.3 Residual voltage tests . 112
13.8.4 Test to verify long term stability under continuous operating voltage . 113
13.8.5 Test to verify the repetitive charge transfer rating, Q . 113
rs
13.8.6 Heat dissipation behaviour of test sample . 114
13.8.7 Operating duty tests . 114
13.8.8 Power frequency voltage-versus-time test. 114
13.8.9 Tests of arrester disconnector . 114
13.8.10 Short-circuit tests . 114
13.8.11 Test of the bending moment . 116
13.8.12 Environmental tests . 116
13.8.13 Seal leak rate test . 117
13.8.14 Radio interference voltage (RIV) test . 117
13.8.15 Test to verify the dielectric withstand of internal components . 117
13.8.16 Test of internal grading components . 117

IEC 60099-4:2014 © IEC 2014 – 7 –
13.9 Routine tests and acceptance tests . 117
Annex A (normative) Abnormal service conditions . 118
Annex B (normative) Test to verify thermal equivalency between complete arrester
and arrester section . 119
Annex C (normative) Artificial pollution test with respect to the thermal stress on
porcelain housed multi-unit metal-oxide surge arresters . 121
C.1 Glossary . 121
C.1.1 Measured quantities . 121
C.1.2 Calculated quantities . 121
C.2 General . 122
C.3 Classification of site severity . 125
C.4 Preliminary heating test: measurement of the thermal time constant τ and
calculation of β . 125
C.5 Verification of the need to perform the pollution tests . 126
C.6 General requirements for the pollution test . 126
C.6.1 Test sample . 126
C.6.2 Testing plant . 127
C.6.3 Measuring devices and measuring procedures . 127
C.6.4 Test preparation . 129
C.7 Test procedures . 129
C.7.1 Slurry method . 129
C.7.2 Salt fog method . 131
C.8 Evaluation of test results . 132
C.8.1 Calculation of K . 132
ie
C.8.2 Calculation of the expected temperature rise ∆T in service . 133
z
C.8.3 Preparation for the operating duty test . 133
C.9 Example. 133
C.9.1 Preliminary heating test . 134
C.9.2 Verification of the need to perform the pollution test . 134
C.9.3 Salt fog tests . 134
C.9.4 Calculation performed after five test cycles . 135
C.9.5 Calculation performed after 10 test cycles . 136
Annex D (informative) Typical information given with enquiries and tenders . 137
D.1 Information given with enquiry . 137
D.1.1 System data . 137
D.1.2 Service conditions . 137
D.1.3 Arrester duty . 137
D.1.4 Characteristics of arrester . 138
D.1.5 Additional equipment and fittings . 138
D.1.6 Any special abnormal conditions . 138
D.2 Information given with tender . 138
Annex E (informative) Ageing test procedure – Arrhenius law – Problems with higher
temperatures . 139
Annex F (informative) Guide for the determination of the voltage distribution along
metal-oxide surge arresters . 141
F.1 General . 141
F.2 Modelling of the surge arrester . 141
F.3 Modelling of the boundary conditions . 142
F.4 Calculation procedure . 142

– 8 – IEC 60099-4:2014 © IEC 2014
F.4.1 Capacitive representation of the MO resistor column . 142
F.4.2 Capacitive and resistive representation of the MO resistor column . 143
F.4.3 Determination of U . 143
ct
F.5 Example calculations . 143
F.5.1 Modelling of the arrester and the boundary conditions . 144
F.5.2 Resistive effects of the metal-oxide MO resistors . 144
F.5.3 Results and conclusions from electric field calculations . 144
Annex G (normative) Mechanical considerations . 149
G.1 Test of bending moment. 149
G.2 Seismic test . 150
G.3 Definition of mechanical loads . 150
G.4 Definition of seal leak rate . 151
G.5 Calculation of wind-bending-moment. 152
G.6 Procedures of tests of bending moment for porcelain/cast resin and polymer-
housed arresters . 153
Annex H (normative) Test procedure to determine the lightning impulse discharge
capability .
...


SIST EN 60099-4
SL O V EN S K I
S T ANDAR D  november 2014
Prenapetostni odvodniki – 4. del: Kovinskooksidni prenapetostni odvodniki
brez iskrišč za sisteme z izmenično napetostjo (IEC 60099-4:2014)

Surge arresters – Part 4: Metal-oxide surge arresters without gaps for a.c.
systems (IEC 60099-4:2014)
Parafoudres – Partie 4: Parafoudres à oxyde métallique sans éclateur pour
réseaux à courant alternatif (CEI 60099-4:2014)

Überspannungsableiter – Teil 4: Metalloxidableiter ohne Funkenstrecken für
Wechselspannungsnetze (IEC 60099-4:2014)

Referenčna oznaka
ICS 29.240.10 SIST EN 60099-4:2014 (sl)

Nadaljevanje na straneh II do III in od 1 do 172

2024-09. Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno.

SIST EN 60099-4 : 2014
NACIONALNI UVOD
Standard SIST EN 60099-4 (sl), Prenapetostni odvodniki – 4. del: Kovinskooksidni prenapetostni
odvodniki brez iskrišč za sisteme z izmenično napetostjo, 2014, ima status slovenskega standarda in je
istoveten evropskemu standardu EN 60099-4 (en), Surge arresters – Part 4: Metal-oxide surge arresters
without gaps for a.c. systems, 2014.

Ta standard nadomešča SIST EN 60076-11:2004, SIST EN 60099-4:2005/A1:2007 in SIST EN 60099-
4:2005/A1:2007.
NACIONALNI PREDGOVOR
Evropski standard EN 60099-4:2014 je pripravil tehnični odbor Evropskega komiteja za standardizacijo
v elektrotehniki CLC/SR 37 Prenapetostni odvodniki.

Slovenski standard SIST EN 60099-4:2014 je prevod evropskega standarda EN 60099-4:2014. V
primeru spora glede besedila slovenskega prevoda v tem standardu je odločilen izvirni evropski
standard v angleškem jeziku. Slovensko izdajo standarda je potrdil tehnični odbor SIST/TC POD
Prenapetostni odvodniki.
Odločitev za privzem tega standarda je novembra 2014 sprejel tehnični odbor SIST/TC POD
Prenapetostni odvodniki.
ZVEZA Z NACIONALNIMI STANDARDI

S privzemom tega evropskega standarda veljajo za omejeni namen referenčnih standardov vsi
standardi, navedeni v izvirniku, razen tistih, ki so že sprejeti v nacionalno standardizacijo:

SIST EN 60060-1 Visokonapetostne preskusne tehnike – 1. del: Splošne definicije in
preskusne zahteve (IEC 60060-1:2010)

SIST EN 61557-2 Tehnike visokonapetostnega preskušanja – 2. del: Merilni sistemi (IEC
60060-2:2010)
SIST EN 60068-2-11:2001 Okoljsko preskušanje – 2-11. del: Preskusi – Preskus Ka: Slana megla

SIST EN IEC 60068-2-14 Okoljsko preskušanje – 2-14. del: Preskusi – Preskus N: Temperaturne
spremembe (IEC 60068-2-14:2023)

SIST EN IEC 60071-1 Koordinacija izolacije – 1. del: Definicije, načela in pravila

SIST EN 60071-2:2001 Koordinacija izolacije – 2. del: Vodilo za uporabo

SIST EN 60270 Visokonapetostne preskusne tehnike – Meritve delnih razelektritev

SIST EN 60507:2014 Preskusi z umetnim onesnaženjem visokonapetostnih keramičnih in
steklenih izolatorjev, namenjenih za sisteme z izmenično napetostjo

SIST EN 62217 Polimerni visokonapetostni izolatorji za notranjo in zunanjo uporabo –
Splošne definicije, preskusne metode in prevzemna merila (IEC
62217:2012)
SIST EN 62271-1:2009 Visokonapetostne stikalne in krmilne naprave – 1. del: Skupne
specifikacije (IEC 62271-1:2007)

SIST EN 62271-200:2012 Visokonapetostne stikalne in krmilne naprave – 200. del: Stikalne in
krmilne naprave v kovinskih ohišjih za naznačene izmenične napetosti nad
1 kV in do vključno 52 kV (IEC 62271-200:2011)

SIST EN 62271-203:2012 Visokonapetostne stikalne in krmilne naprave – 203. del: Plinsko izolirane
stikalne naprave v kovinskih ohišjih za naznačene napetosti nad 52 kV
(IEC 62271-203:2011)
II
SIST EN 60099-4 : 2014
SIST EN ISO 4287 Specifikacija geometrijskih veličin izdelka – Tekstura površine: profilna
metoda – Poimenovanja, definicije in parametri teksture površine

SIST EN ISO 4892-1 Polimerni materiali – Metode izpostavljanja laboratorijskim virom svetlobe
– 1. del: Splošna navodila (ISO 4892-1:2016)

SIST EN ISO 4892-2 Polimerni materiali – Metode izpostavitve laboratorijskim virom svetlobe –
2. del: Ksenonske svetilke (ISO 4892-2:2013)

SIST EN ISO 4892-3 Polimerni materiali – Metode izpostavljanja laboratorijskim virom svetlobe
– 3. del: Fluorescentne UV-svetilke (ISO 4892-3:2016)

OSNOVA ZA IZDAJO STANDARDA
– privzem standarda EN 60099-4:2014

PREDHODNA IZDAJA
– SIST EN 60099-4:2005 (sl), Prenapetostni odvodniki – 4. del: Kovinsko-oksidni prenapetostni
odvodniki brez iskrišč za sisteme z izmenično napetostjo

– SIST EN 60099-4:2005/A1:2007 (sl), Prenapetostni odvodniki – 4. del: Kovinsko-oksidni
prenapetostni odvodniki brez iskrišč za sisteme z izmenično napetostjo

– SIST EN 60099-4:2005/A2:2009 (sl), Prenapetostni odvodniki – 4. del: Kovinsko-oksidni
prenapetostni odvodniki brez iskrišč za sisteme z izmenično napetostjo

OPOMBE
– Povsod, kjer se v besedilu standarda uporablja izraz "evropski standard", v SIST EN 60099-4:2014
to pomeni "slovenski standard".

– Nacionalni uvod in nacionalni predgovor nista sestavni del standarda.

– Ta nacionalni dokument je enakovreden EN 60099-4:2014 in je objavljen z dovoljenjem

CEN-CENELEC
Upravni center
Avenue Marnix 17
B-1000 Bruselj
This national document is identical with EN 60099-4:2014 and is published with the permission of

CEN-CENELEC
Management Centre
Avenue Marnix 17
B-1000 Bruxelles
POMEMBNO: Logotip "v barvah" na platnicah te publikacije opozarja, da vsebuje barve, ki so potrebne
za pravilno razumevanje njene vsebine. Uporabniki naj zato tiskajo ta dokument z barvnim tiskalnikom.

III
SIST EN 60099-4 : 2014
(prazna stran)
IV
EVROPSKI STANDARD              EN 60099-4

EUROPEAN STANDARD
september 2014
NORME EUROPÉENNE
EUROPÄISCHE NORM
ICS 29.240.10; 29.120.50 Nadomešča EN 60099-4:2004

Slovenska izdaja
Prenapetostni odvodniki – 4. del: Kovinskooksidni prenapetostni odvodniki
brez iskrišč za sisteme z izmenično napetostjo
(IEC 60099-4:2014)
Surge arresters – Part 4: Metal-oxide Parafoudres – Partie 4: Parafoudres à Überspannungsableiter –
surge arresters withoutgaps f or a.c. oxyde métallique sans éclateur pour Teil 4: Metalloxidableiter ohne
systems (IEC 60099-4:2014) réseaux à courant alternatif (CEI Funkenstrecken für
60099-4:2014) Wechselspannungsnetze
(IEC 60099-4:2014)
Ta evropski standard je CENELEC sprejel 4. avgusta 2014. Člani CENELEC morajo upoštevati interne
predpise CEN/CENELEC, ki določajo, da ta evropski standardi dobi status nacionalnega standarda brez
kakršnekoli spremembe.
Seznami najnovejših izdaj teh nacionalnih standardov in njihovi bibliografski podatki so na voljo pri
Upravnem centru CEN-CENELEC ali članih CENELEC.

Ta evropski standard obstaja v treh izvirnih izdajah (angleški, francoski in nemški). Izdaje v drugih
jezikih, ki jih člani CENELEC na lastno odgovornost prevedejo in izdajo ter prijavijo pri Upravnem centru
CEN-CENELEC, veljajo kot uradne izdaje.

Člani CENELEC so nacionalni elektrotehniški komiteji Avstrije, Belgije, Bolgarije, Cipra, Češke
republike, Danske, Estonije, Finske, Francije, Grčije, Hrvaške, Islandije, Irske, Italije, Latvije, Litve,
Luksemburga, Madžarske, Malte, Nekdanje jugoslovanske republike Makedonije, Nemčije,
Nizozemske, Norveške, Poljske, Portugalske, Romunije, Slovaške, Slovenije, Španije, Švedske, Švice,
Turčije in Združenega kraljestva.

CENELEC
Evropski komite za standardizacijo v elektrotehniki
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Upravni center CEN-CENELEC: Avenue Marnix 17, B-1000 Bruselj

© 2014 CENELEC Vse pravice do izkoriščanja v kakršnikoli obliki in na kakršenkoli Ref. oznaka EN 60099-4:2014 E
način imajo nacionalni člani CENELEC.

SIST EN 60099-4 : 2014
VSEBINA  Stran
Evropski predgovor .12
Dodatek ZA: Normativna sklicevanja na mednarodne publikacije z njihovimi ustreznimi
evropskimi publikacijami .13
Predgovor .15
Uvod .17
1 Področje uporabe .18
2 Zveze s standardi .18
3 Izrazi in definicije .19
4 Opredelitev in razvrstitev .28
4.1 Opredelitev prenapetostnega odvodnika . 28
4.2 Razvrstitev prenapetostnega odvodnika . 29
5 Standardizirane naznačene karakteristike in obratovalni pogoji .29
5.1 Standardizirane naznačene napetosti . 29
5.2 Standardizirani naznačeni frekvenci . 30
5.3 Standardizirani nazivni razelektritveni toki . 30
5.4 Obratovalni pogoji . 30
5.4.1 Normalni obratovalni pogoji . 30
5.4.2 Nenormalni obratovalni pogoji . 30
6 Zahteve .31
6.1 Zdržnost izolacije . 31
6.2 Referenčna napetost . 31
6.3 Preostale napetosti . 31
6.4 Notranje delne razelektritve . 32
6.5 Stopnja puščanja tesnil . 32
6.6 Porazdelitev toka v večstolpčnem prenapetostnem odvodniku . 32
6.7 Toplotna stabilnost . 32
6.8 Dolgotrajna stabilnost pri trajni obratovalni napetosti . 32
6.9 Odvajanje toplote iz preskusnega vzorca . 32
6.10 Zdržnost karakteristike ponavljajočega se prehajanja naboja . 32
6.11 Obratovanje . 33
6.12 Karakteristika napetost omrežne frekvence/čas prenapetostnega odvodnika . 33
6.13 Kratkostična zmogljivost . 33
6.14 Odklopnik. 33
6.14.1 Zdržnost odklopnika . 33
6.14.2 Obratovanje odklopnika. 34
6.15 Zahteve za notranje komponente za oblikovanje potenciala . 34
6.16 Mehanske obtežbe . 34
6.16.1 Splošno. 34
6.16.2 Upogibni moment . 34
SIST EN 60099-4 : 2014
6.16.3 Odpornost proti obtežbam iz okolja . 34
6.16.4 Izolacijska podlaga in montažni nosilec . 34
6.16.5 Srednja vrednost prelomne obtežbe (MBL) . 34
6.16.6 Elektomagnetna združljivost. 34
6.17 Konec življenske dobe . 35
6.18 Sposobnost praznitve pri udaru strele . 35
7 Splošni preskusni postopki .35
7.1 Merilna oprema in točnost . 35
7.2 Meritve referenčne napetosti . 35
7.3 Preskusni vzorci . 35
7.3.1 Splošno. 35
7.3.2 Zahteve za dele prenapetostnega odvodnika . 36
8 Preskusi tipa (preskusi zasnove) .37
8.1 Splošno . 37
8.2 Preskusi izolacije z zdržno napetostjo . 39
8.2.1 Splošno. 39
8.2.2 Preskusi na ohišjih posameznih enot . 39
8.2.3 Preskusi na celotnih sestavih prenapetostnih odvodnikov . 39
8.2.4 Stanje okoliškega zraka med preskusi . 39
8.2.5 Preskusni postopek v mokrem . 40
8.2.6 Preskus z napetostjo udara strele . 40
8.2.7 Preskus z napetostjo stikalnih udarov . 40
8.2.8 Preskus z napetostjo omrežne frekvence . 41
8.3 Preskusi preostale napetosti . 41
8.3.1 Splošno. 41
8.3.2 Preskus preostale napetosti pri strmem tokovnem udaru . 42
8.3.3 Preskus preostale napetosti pri udaru strele . 42
8.3.4 Preskus preostale napetosti pri stikalnih napetostnih udarih . 42
8.4 Preskus za preverjanje dolgotrajne stabilnosti pri trajni obratovalni napetosti . 43
8.4.1 Splošno. 43
8.4.2 Kovinskooksidni uporovni elementi z obremenitvijo pod U . 43
ref
8.4.3 Preskusni postopek za kovinskooksidne uporovne elemente,
obremenjene z napetostjo U ali višjo . 44
ref
8.5 Preskus za preverjanje vrednosti ponavljajočega se prehajanja naboja, Q . 47
rs
8.5.1 Splošno. 47
8.5.2 Preskusni postopek . 48
8.5.3 Vrednotenje preskusa . 49
8.5.4 Naznačene vrednosti ponavljajočega se prehajanja naboja, Q . 49
rs
8.6 Odvajanje toplote iz preskusnega vzorca . 50
8.6.1 Splošno. 50
8.6.2 Zahteve za dele prenapetostnih odvodnikov. 50
SIST EN 60099-4 : 2014
8.6.3 Postopek za preverjanje toplotne skladnosti med celotnim prenapetostnim odvodnikom
in njegovim delom . 50
8.7 Preskusi obratovanja . 50
8.7.1 Splošno. 50
8.7.2 Preskusni postopek . 51
8.7.3 Naznačena toplotna energija in vrednosti naboja, W in Q . 54
th th
8.8 Preskus karakteristike napetost omrežne frekvence/čas . 55
8.8.1 Splošno. 55
8.8.2 Preskusni vzorci . 56
8.8.3 Začetne meritve . 57
8.8.4 Preskusni postopek . 57
8.8.5 Vrednotenje preskusa . 58
8.9 Preskusi odklopnika prenapetostnega odvodnika . 58
8.9.1 Splošno. 58
8.9.2 Preskus zdržnosti obratovanja . 58
8.9.3 Obratovanje odklopnika . 59
8.9.4 Mehanski preskusi . 60
8.9.5 Preskus s temperaturnim cikliranjem in preskus tesnjenja s črpanjem . 60
8.10 Kratkostični preskusi . 61
8.10.1 Splošno. 61
8.10.2 Priprava preskusnih vzorcev . 61
8.10.3 Namestitev preskusnega vzorca . 65
8.10.4 Kratkostični preskusi z velikim tokom . 66
8.10.5 Kratkostični preskus z majhnim tokom . 69
8.10.6 Vrednotenje rezultatov preskusa . 69
8.11 Preskus upogibnega momenta. 69
8.11.1  Splošno. 69
8.11.2 Pregled . 69
8.11.3 Priprava vzorca . 70
8.11.4 Preskusni postopek . 70
8.11.5 Vrednotenje preskusa . 70
8.11.6 Preskus izolacijske podlage in montažnega nosilca . 71
8.12 Okoljski preskusi . 71
8.12.1 Splošno. 71
8.12.2 Priprava vzorca . 71
8.12.3 Preskusni postopek . 71
8.12.4 Vrednotenje preskusa . 72
8.13 Preskus stopnje puščanja tesnil . 72
8.13.1 Splošno. 72
8.13.2 Priprava vzorca . 72
8.13.3 Preskusni postopek . 72
SIST EN 60099-4 : 2014
8.13.4 Vrednotenje preskusa .72
8.14 Preskus napetosti radiofrekvenčnega motenja (RIV) . 72
8.15 Preskus za preverjanje dielektrične zdržnosti notranjih komponent . 74
8.15.1 Splošno. 74
8.15.2 Preskusni postopek . 74
8.15.3 Vrednotenje preskusa . 74
8.16 Preskus notranjih komponent za oblikovanje potenciala . 74
8.16.1 Preskus za preverjanje dolgotrajne stabilnosti pri trajni obratovalni napetosti . 74
8.16.2 Preskus s toplotnim cikliranjem . 75
9 Kosovni in prevzemni preskusi .76
9.1 Kosovni preskusi . 76
9.2 Prevzemni preskusi . 77
9.2.1 Standardni prevzemni preskusi . 77
9.2.2 Posebni preskus toplotne stabilnosti . 78
10 Preskusne zahteve za prenapetostne odvodnike v polimernem ohišju . 78
10.1 Področje uporabe . 78
10.2 Zveze s standardi . 78
10.3 Izrazi in definicije . 78
10.4 Opredelitev in razvrstitev . 78
10.5 Standardizirane naznačene karakteristike in obratovalni pogoji . 78
10.6 Zahteve. 78
10.7 Splošni preskusni postopek. 79
10.8 Preskusi tipa (preskusi zasnove) . 79
10.8.1 Splošno. 79
10.8.2 Preskusi zdržnosti izolacije . 79
10.8.3 Preskusi preostale napetosti . 80
10.8.4 Preskus za preverjanje dolgotrajne stabilnosti pri trajni obratovalni napetosti . 80
10.8.5 Preskus za preverjanje vrednosti ponavljajočega se prehajanja naboja, Q . 80
rs
10.8.6 Odvajanje toplote iz preskusnega vzorca . 80
10.8.7 Preskusi obratovanja . 80
10.8.8 Preskus karakteristike napetost omrežne frekvence/čas . 80
10.8.9 Preskusi odklopnika prenapetostnega odvodnika . 81
10.8.10 Kratkostični preskusi . 81
10.8.11 Preskus upogibnega momenta . 87
10.8.12 Okoljski preskusi . 93
10.8.13 Preskus stopnje puščanja tesnil . 94
10.8.14 Preskus napetosti radiofrekvenčnega motenja (RIV) . 94
10.15 Preskus za preverjanje dielektrične zdržnosti notranjih komponent .94
10.8.16 Preskus notranjih komponent za oblikovanje potenciala . 94
10.8.17 Preskus vremenskega staranja . 94
10.9 Kosovni preskusi . 96
SIST EN 60099-4 : 2014
11 Zahteve za preskus plinsko izoliranih prenapetostnih odvodnikov v kovinskih ohišjih
(prenapetostni odvodniki GIS) .96
11.1 Področje uporabe . 96
11.2 Zveze s standardi . 96
11.3 Izrazi in definicije . 96
11.4 Opredelitev in razvrstitev . 96
11.5 Standardizirane naznačene karakteristike in obratovalni pogoji . 97
11.6 Zahteve. 97
11.6.1 Zdržne napetosti . 97
11.6.13 Kratkostična zmogljivost .101
11.6.14 Odklopnik . 101
11.6.15 zahteve za notranje komponente za oblikovanje potenciala. 101
11.7 Splošni preskusni postopki . 100
11.8 Preskusi tipa (preskusi zasnove) . 100
11.8.1 Splošno. 100
11.8.2 Preskusi zdržnosti izolacije . 100
11.8.3 Preskusi preostale napetosti . 103
11.8.4 Preskus za preverjanje dolgotrajne stabilnosti pri trajni obratovalni napetosti . 103
11.8.5 Preskus za preverjanje vrednosti ponavljajočega se prehajanja naboja, Q . 103
rs
11.8.6 Odvajanje toplote iz preskusnega vzorca . 103
11.8.7 Preskusi obratovanja . 103
11.8.8 Preskus karakteristike napetost omrežne frekvence/čas . 103
11.8.9 Preskusi odklopnika prenapetostnega odvodnika . 103
11.8.10 Kratkostični preskusi . 104
11.8.11 Preskus upogibnega momenta . 104
11.8.12 Okoljski preskusi . 104
11.8.13 Preskus stopnje puščanja tesnil . 104
11.8.14 Preskus napetosti radiofrekvenčnega motenja (RIV) . 104
11.8.15 Preskus za preverjanje dielektrične zdržnosti notranjih komponent . 104
11.8.16 Preskus notranjih komponent za oblikovanja potenciala . 104
11.9 Kosovni preskusi . 104
11.10 Preskus po namestitvi na kraju samem . 104
12 Ločljivi in čelno pokriti prenapetostni odvodniki .105
12.1 Področje uporabe . 105
12.2 Zveze s standardi . 105
12.3 Izrazi in definicije . 105
12.4 Opredelitev in razvrstitev . 105
12.5 Standardizirane naznačene karakteristike in obratovalni pogoji . 105
12.5.4 Normalni obratovalni pogoji . 105
12.6 Zahteve. 106
12.6.4 Notranje delne razelektritve. 106
SIST EN 60099-4 : 2014
12.6.13 Kratkostična zmogljivost . 106
12.7 Splošni preskusni postopki . 106
12.8 Preskusi tipa (preskusi zasnove) . 106
12.8.1 Splošno. 106
12.8.2 Preskusi zdržnosti izolacije . 107
12.8.3 Preskus preostale napetosti . 108
12.8.4 Preskus za preverjanje dolgotrajne stabilnosti pri trajni obratovalni napetosti . 108
12.8.5 Preskus za preverjanje vrednosti ponavljajočega se prehajanja naboja, Q . 109
rs
12.8.6 Odvajanje toplote iz preskusnega vzorca . 109
12.8.7 Preskusi obratovanja . 109
12.8.8 Preskus karakteristike napetost omrežne frekvence/čas . 110
12.8.9 Preskus odklopnika prenapetostnega odvodnika . 110
12.8.10 Kratkostični preskusi . 110
12.8.11 Preskus z upogibnim momentom . 112
12.8.12 Okoljski preskusi . 112
12.8.13 Preskus stopnje puščanja tesnil . 112
12.8.14 Preskus napetosti radiofrekvenčnega motenja (RIV) . 112
12.8.15 Preskus za preverjanje dielektrične zdržnosti notranjih komponent . 112
12.8.16 Preskus notranjih komponent za oblikovanja potenciala . 112
12.8.17 Preskus notranjih delnih razelektritev . 112
12.9 Kosovni in prevzemni preskusi . 112
13 Tekočinski prenapetostni odvodniki .113
13.1 Področje uporabe . 113
13.2 Zveze s standardi . 113
13.3 Izrazi in definicije . 113
13.4 Opredelitev in razvrstitev . 113
13.5 Standardizirane naznačene karakteristike in obratovalni pogoji . 113
13.6 Zahteve. 114
13.6.13 Kratkostična zmogljivost . 114
13.7 Splošni preskusni postopki . 114
13.8 Preskusi tipa (preskusi zasnove) . 114
13.8.1 Splošno. 114
13.8.2 Preskusi zdržnosti izolacije . 114
13.8.3 Preskusi preostale napetosti . 115
13.8.4 Preskus za preverjanje dolgotrajne stabilnosti pri trajni obratovalni napetosti . 115
13.8.5 Preskus za preverjanje vrednosti ponavljajočega se prehajanja naboja, Q . 116
rs
13.8.6 Odvajanje toplote iz preskusnega vzorca . 116
13.8.7 Preskusi obratovanja . 116
13.8.8 Preskus karakteristike napetost omrežne frekvence/čas . 116
13.8.9 Preskus odklopnika prenapetostnega odvodnika . 116
13.8.10 Kratkostični preskusi . 117
SIST EN 60099-4 : 2014
13.8.11 Preskus z upogibnim momentom . 119
13.8.12 Okoljski preskusi . 119
13.8.13 Preskus stopnje puščanja tesnil . 119
13.8.14 Preskus napetosti radiofrekvenčnega motenja (RIV) . 119
13.8.15 Preskus za preverjanje dielektrične zdržnosti notranjih komponent . 119
13.8.16 Preskus notranjih komponent za oblikovanja potenciala . 119
13.9 Kosovni in prevzemni preskusi . 119
Dodatek A (normativni): Nenormalni pogoji obratovanja .120
Dodatek B (normativni): Preskus za preverjanje toplotne skladnosti med celotnim
prenapetostnim odvodnikom in njegovim delom .121
Dodatek C (normativni): Preskus z umetnim onesnaženjem ob upoštevanju toplotne
obremenitve kovinskooksidnih prenapetostnih odvodnikov z več enotami v keramičnih
ohišjih .123
C.1 Glosar .123
C.1.1 Izmerjene veličine . 123
C.1.2 Izračunane veličine . 123
C.2 Splošno . 124
C.3 Klasifikacija resnosti onesnaženja kraja namestitve .127
C.4 Predhodni preskus s segrevanjem: meritev toplotne časovne konstante τ in izračun β .127
C.5 Preverjanje potrebe po izvedbi preskusov z onesnaženjem .128
C.6 Splošne zahteve za preskus z onesnaženjem .128
C.6.1 Preskusni vzorec . 128
C.6.2 Preskusna postavitev . 129
C.6.3 Merilne naprave in merilni postopki . 129
C.6.4 Priprava preskusa . 130
C.7 Pr
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Frequently Asked Questions

SIST EN 60099-4:2014 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems (IEC 60099-4:2014)". This standard covers: IEC 60099-4:2014 applies to non-linear metal-oxide resistor type surge arresters without spark gaps designed to limit voltage surges on a.c. power circuits with Us above 1 kV. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. The numerous changes between the second and third editions are listed in the Foreward of the document. Keywords: testing of gapless metal-oxide surge arresters for a.c.power systems

IEC 60099-4:2014 applies to non-linear metal-oxide resistor type surge arresters without spark gaps designed to limit voltage surges on a.c. power circuits with Us above 1 kV. This third edition cancels and replaces the second edition published in 2009. This edition constitutes a technical revision. The numerous changes between the second and third editions are listed in the Foreward of the document. Keywords: testing of gapless metal-oxide surge arresters for a.c.power systems

SIST EN 60099-4:2014 is classified under the following ICS (International Classification for Standards) categories: 29.240.10 - Substations. Surge arresters. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 60099-4:2014 has the following relationships with other standards: It is inter standard links to SIST EN 60099-4:2005, SIST EN 60099-4:2005/A1:2007, SIST EN 60099-4:2005/A2:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase SIST EN 60099-4:2014 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.