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Engineers use this standard to establish maintenance protocols. It details several methods for monitoring arrester health in-service:

The standard covers several types of modern overvoltage protection devices:

Including those with series or parallel gaps rated up to 52 kV.

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

Estimating the lightning charge transfer requirements, crucial for lines below 245 kV where Station Light (SL) arresters are common.