The industry standard for station protection.
Annex J provides guidance for older silicon carbide (SiC) gapped arresters still in service. Key Technical Components iec 600995 pdf
Detailed comparisons between the old line discharge classes and the new charge-based classification, including simplified estimation methods for switching energies. Why Professionals Use the IEC 60099-5 PDF The industry standard for station protection
Engineers use this standard to establish maintenance protocols. It details several methods for monitoring arrester health in-service: iec 600995 pdf
Specifically for overhead transmission and distribution lines.
Estimating the lightning charge transfer requirements, crucial for lines below 245 kV where Station Light (SL) arresters are common.
Often considered the most reliable diagnostic indicator (Method B2 in the standard).