標準號：IEC 60099-5-2018
中文標準名稱：避雷器.第5部分:選擇和應用建議
英文標準名稱：Surge arresters - Part 5: Selection and application recommendations
標準類型：K49
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：K49
國際標準分類號：29.120.50;29.240.10
引用標準：IEC 60071-1-2006;IEC 60071-1 AMD 1-2010;IEC 60071-2-1996;IEC/TR 60071-4-2004;IEC 60099-4-2014;IEC 60099-6-2002;IEC 60099-8-2011;IEC 60507-2013;IEC/TS 60815-1-2008;IEC 62271-200-2011;IEC 62271-203-2011
適用范圍：This part of IEC 60099 provides information, guidance, and recommendations for the selection and application of surge arresters to be used in three-phase systems with nominal voltages above 1 kV. It applies to gapless metal-oxide surge arresters as defined in IEC 60099-4, to surge arresters containing both series and parallel gapped structure - rated 52 kV and less as defined in IEC 60099-6 and metal-oxide surge arresters with external series gap for overhead transmission and distribution lines (EGLA) as defined in IEC 60099-8. In Annex J, some aspects regarding the old type of SiC gapped arresters are discussed. Surge arrester residual voltage is a major parameter to which most users have paid a lot of attention to when selecting the type and rating. Typical maximum residual voltages are given in Annex F. It is likely, however, that for some systems, or in some countries, the requirements on system reliability and design are sufficiently uniform, so that the recommendations of the present standard may lead to the definition of narrow ranges of arresters. The user of surge arresters will, in that case, not be required to apply the whole process introduced here to any new installation and the selection of characteristics resulting from prior practice may be continued. Annexes H and I present comparisons and calculations between old line discharge classification and new charge classification.