Home>IEC 60099-6 : 1.0

IEC 60099-6 : 1.0

IEC 60099-6 : 1.0

SURGE ARRESTERS - PART 6: SURGE ARRESTERS CONTAINING BOTH SERIES AND PARALLEL GAPPED STRUCTURES - RATED 52 KV AND LESS

International Electrotechnical Committee

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Table of Contents

FOREWORD<br>INTRODUCTION<br>1 General<br>&nbsp;&nbsp;&nbsp;1.1 Scope<br>&nbsp;&nbsp;&nbsp;1.2 Normative references<br>2 Definitions<br>3 Identification and classification<br>&nbsp;&nbsp;&nbsp;3.1 Arrester identification<br>&nbsp;&nbsp;&nbsp;3.2 Arrester classification<br>4 Standard ratings<br>&nbsp;&nbsp;&nbsp;4.1 Standard rated voltages<br>&nbsp;&nbsp;&nbsp;4.2 Standard rated frequencies<br>&nbsp;&nbsp;&nbsp;4.3 Standard nominal discharge currents<br>&nbsp;&nbsp;&nbsp;4.4 Service conditions<br>5 Requirements<br>&nbsp;&nbsp;&nbsp;5.1 Insulation withstand of the arrester housing<br>&nbsp;&nbsp;&nbsp;5.2 Reference voltage<br>&nbsp;&nbsp;&nbsp;5.3 Impulse protective levels<br>&nbsp;&nbsp;&nbsp;5.4 Partial discharges<br>&nbsp;&nbsp;&nbsp;5.5 Seal leakage<br>&nbsp;&nbsp;&nbsp;5.6 Thermal stability<br>&nbsp;&nbsp;&nbsp;5.7 Long duration current impulse withstand<br>&nbsp;&nbsp;&nbsp;5.8 Operating duty<br>&nbsp;&nbsp;&nbsp;5.9 Power frequency voltage versus time characteristics <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;of an arrester<br>&nbsp;&nbsp;&nbsp;5.10 Short-circuit withstand<br>&nbsp;&nbsp;&nbsp;5.11 Disconnectors<br>&nbsp;&nbsp;&nbsp;5.12 Requirements for internal and external grading <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;components<br>&nbsp;&nbsp;&nbsp;5.13 Power frequency sparkover<br>&nbsp;&nbsp;&nbsp;5.14 Grading current<br>&nbsp;&nbsp;&nbsp;5.15 Weather ageing tests<br>6 General procedures<br>&nbsp;&nbsp;&nbsp;6.1 Measuring equipment and accuracy<br>&nbsp;&nbsp;&nbsp;6.2 Reference voltage measurements<br>&nbsp;&nbsp;&nbsp;6.3 Test samples<br>7 Type tests (design tests)<br>&nbsp;&nbsp;&nbsp;7.1 General<br>&nbsp;&nbsp;&nbsp;7.2 Insulation withstand tests on the arrester housing<br>&nbsp;&nbsp;&nbsp;7.3 Impulse protective level tests<br>&nbsp;&nbsp;&nbsp;7.4 Long duration current impulse withstand test<br>&nbsp;&nbsp;&nbsp;7.5 Operating duty tests<br>&nbsp;&nbsp;&nbsp;7.6 Tests of arrester disconnectors<br>&nbsp;&nbsp;&nbsp;7.7 Power frequency voltage sparkover tests<br>&nbsp;&nbsp;&nbsp;7.8 Moisture ingress tests<br>&nbsp;&nbsp;&nbsp;7.9 Weather ageing tests<br>8 Routine tests and acceptance tests<br>&nbsp;&nbsp;&nbsp;8.1 Routine tests<br>&nbsp;&nbsp;&nbsp;8.2 Acceptance tests<br>Annex A (normative) Abnormal service conditions<br>Annex B (normative) Test to verify thermal equivalency <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;between complete arrester and arrester section<br>Annex C (normative) Procedure to verify the power frequency <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;voltage versus time characteristics of an arrester<br>Annex D (normative) Artificial pollution testing of <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;metal-oxide surge arresters containing gapped <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;structures<br>Annex E (informative) Typical information given with <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;inquiries and tenders<br>Annex F (informative) Typical maximum protective levels<br>Bibliography<br>Figures<br>Tables

Abstract

Applicable to non-linear metal-oxide resistor type surge arresters with spark gaps designed to limit voltage surges on a.c. power circuits. It mainly applies to all metal-oxide surge arresters with gaps and housed in either porcelain or polymeric housings.

General Product Information

Document Type Standard
Status Current
Publisher International Electrotechnical Committee
Committee TC 37

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