Specifically for overhead transmission and distribution lines.
The IEC 60099-5:2018 edition introduced significant changes to align with the energy and charge classification system first set in IEC 60099-4:2014. The PDF outlines formulas and methods to determine:
Typical maximum residual voltages for various arrester types.
Engineers use this standard to establish maintenance protocols. It details several methods for monitoring arrester health in-service:
The industry standard for station protection.
Calculating the energy an arrester must absorb during switching surges or capacitor bank operations.
IEC 60099-5:2013 - Surge Arresters Selection and Application Guide
Annex J provides guidance for older silicon carbide (SiC) gapped arresters still in service. Key Technical Components