Typical maximum residual voltages for various arrester types.

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

Using "Thermo Vision" to detect abnormal temperature rises on the housing.

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:

The industry standard for station protection.

Often considered the most reliable diagnostic indicator (Method B2 in the standard).