BS EN IEC 60099-5:2018 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.


Cross References:
EN 60507
EN 62271-200
IEC 60507
IEC TR 60071-4
IEC 62271-200
IEC/TR 60071-4
EN 60071-2:1997
EN 62271-203
IEC 62271-203
EN 60099-8 (IEC 60099-8:2011) AS
IEC 60099-4:2004/AMD2:2009
IEC 60099-4:2004/AMD1:2006
IEC 60099-4:2014
IEC 60099-8:2011
IEC 60071-2:1996
EN 60099-4 (IEC 60099-4:2014) AS
EN 60099-4:2004
EN 60071-1 Amd 1 (02/10) (IEC AS)
IEC 60071-1:2006
EN 60099-4:2004/A2:2009
IEC 60099-4:2004
EN 60099-4:2004/A1:2006
IEC 60099-6:2002
IEC TS 60815-1:2008
EN 60071-1 (IEC 60071-1:2006) AS
IEC 60071-1:2006/AMD1:2010
IEC/TR 62271-300
CIGRE 63:1991


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