• IEC 60099-8:2017

    Current The latest, up-to-date edition.

    Surge arresters - Part 8: Metal-oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kV

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English, English - French

    Published date:  14-11-2017

    Publisher:  International Electrotechnical Committee

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Identification and classification
    5 Standard ratings and service conditions
    6 Requirements
    7 General testing procedure
    8 Type tests
    9 Routine tests
    10 Acceptance tests
    Annex A (informative) - Example of a test
            circuit for the follow current
            interrupting test
    Annex B (normative) - Mechanical considerations
    Annex C (normative) - Special service conditions
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC 60099-8:2017 is available as IEC 60099-8:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

    IEC 60099-8:2017 covers metal-oxide surge arresters with external series gap (externally gapped line arresters (EGLA)) that are applied on overhead transmission and distribution lines, only to protect insulator assemblies from lightning-caused flashovers. This document defines surge arresters to protect the insulator assembly from lightning-caused over-voltages only. Therefore, and since metal-oxide resistors are not permanently connected to the line, the following items are not considered for this document:
    - switching impulse spark-over voltage;
    - residual voltage at steep current and switching current impulse;
    - thermal stability;
    - long-duration current impulse withstand duty;
    - power-frequency voltage versus time characteristics of an arrester;
    - disconnector test;
    - aging duties by power-frequency voltage.
    Considering the particular design concept and the special application on overhead transmission and distribution lines, some unique requirements and tests are introduced, such as the verification test for coordination between insulator withstand and EGLA protective level, the follow current interrupting test, mechanical load tests, etc. Designs with the EGLA's external series gap installed in parallel to an insulator are not covered by this document. This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
    The Lightning discharge capability test has been completely re-written and re-named to Test to verify the repetitive charge transfer rating, Qrs with lightning discharges to reflect changes introduced in IEC 60099-4 Ed.3 (2014) regarding new methods for rating the energy and charge handling capability of metal-oxide arresters. In addition to testing to evaluate the performance of the MO resistors, procedures for evaluating the performance of the EGLA series gaps have been introduced.
    - Omissions from Ed. 1 of this standard have been included, notably an RIV test and a means for determining the thermal time constant of the SUV portion of the EGLA.
    - Definitions for new terms have been added
    - A number of NOTES in Ed. 1 have been converted to normative requirements
    Keywords: externally gapped line arresters (EGLA), lightning-caused over-voltages

    General Product Information - (Show below) - (Hide below)

    Committee TC 37
    Development Note Stability Date: 2020. (11/2017)
    Document Type Standard
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    17/30339060 DC : 0 BS EN 60071-2 - INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDE (PROPOSED HORIZONTAL STANDARD)
    IEC 60099-5:2018 RLV Surge arresters - Part 5: Selection and application recommendations
    CEI EN 60099-5 : 2014 SURGE ARRESTERS - PART 5: SELECTION AND APPLICATION RECOMMENDATIONS
    IEC 60071-2:2018 RLV Insulation co-ordination - Part 2: Application guidelines
    16/30340451 DC : DRAFT APR 2016 BS EN 60099-5 - SURGE ARRESTERS - PART 5: SELECTION AND APPLICATION RECOMMENDATIONS
    BS EN 60099-5:2013 SURGE ARRESTERS - PART 5: SELECTION AND APPLICATION RECOMMENDATIONS
    EN IEC 60071-2 : 2018 INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDELINES (IEC 60071-2:2018)
    I.S. EN IEC 60071-2:2018 INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDELINES
    NF EN 60099-5 : 2017 SURGE ARRESTERS - PART 5: SELECTION AND APPLICATION RECOMMENDATIONS
    I.S. EN 60099-5:2013 SURGE ARRESTERS - PART 5: SELECTION AND APPLICATION RECOMMENDATIONS (IEC 60099-5:2013 (EQV))
    EN IEC 60099-5 : 2018 SURGE ARRESTERS - PART 5: SELECTION AND APPLICATION RECOMMENDATIONS (IEC 60099-5:2018)
    IEC 60071-2 REDLINE : 4ED 2018 INSULATION CO-ORDINATION - PART 2: APPLICATION GUIDELINES
    IEC 60099-5:2018 Surge arresters - Part 5: Selection and application recommendations
    IEC 60099-5 REDLINE : 3.0 SURGE ARRESTERS - PART 5: SELECTION AND APPLICATION RECOMMENDATIONS
    10/30210015 DC : 0 BS EN 60099-5 - SURGE ARRESTERS - SELECTION AND APPLICATION RECOMMENDATIONS
    I.S. EN IEC 60099-5:2018 SURGE ARRESTERS - PART 5: SELECTION AND APPLICATION RECOMMENDATIONS
    IEC 60071-2:2018 Insulation co-ordination - Part 2: Application guidelines
    EN 60099-5:2013 SURGE ARRESTERS - PART 5: SELECTION AND APPLICATION RECOMMENDATIONS (IEC 60099-5:2013)

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60060-2:2010 High-voltage test techniques - Part 2: Measuring systems
    ISO 4892-1:2016 Plastics Methods of exposure to laboratory light sources Part 1: General guidance
    IEC 60270:2000+AMD1:2015 CSV High-voltage test techniques - Partial discharge measurements
    ISO 4287:1997 Geometrical Product Specifications (GPS) — Surface texture: Profile method — Terms, definitions and surface texture parameters
    IEC 60099-4:2014 Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems
    IEC 62217:2012 Polymeric HV insulators for indoor and outdoor use - General definitions, test methods and acceptance criteria
    IEC 60068-2-11:1981 Basic environmental testing procedures - Part 2-11: Tests - Test Ka: Salt mist
    ISO 4892-3:2016 Plastics Methods of exposure to laboratory light sources Part 3: Fluorescent UV lamps
    ISO 3274:1996 Geometrical Product Specifications (GPS) — Surface texture: Profile method — Nominal characteristics of contact (stylus) instruments
    ISO 4892-2:2013 Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps
    IEC 60060-1:2010 High-voltage test techniques - Part 1: General definitions and test requirements
    IEC 60507:2013 Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems
    IEC 60068-2-14:2009 Environmental testing - Part 2-14: Tests - Test N: Change of temperature
    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
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