Surge arresters - Metal-oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kV Ingestion-build-53008 This European Standard specifies three

This European Standard specifies three equipment classes (fixed

b) a description of the extensions to ISO/IEC 15408 evaluation concepts needed to evaluate such operational systems

It also specifies their requirements for installation

BS EN 62675 illustrates the technicalities to carry out various test procedures to determine the parameters measurement tolerances

• Annex B (informative) Allocation of optical devices by categories and working groups

Surge arresters - Metal-oxide surge arresters with external series gap (EGLA) for overhead transmission and distribution lines of a.c. systems above 1 kV Ingestion-build-53008 This European Standard specifies threeWhat is BS EN IEC 60099 8 Externally gapped line arresters (EGLA) about? BS EN IEC 60099 8 is the eighth part of the IEC 60099 multi series that discusses surge arresters. BS EN IEC 60099 8 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. BS EN IEC 60099 8 defines