People often mis-remember 60050-195 as 600995 (by dropping the dash and merging digits). This standard defines terms like:
Some key topics covered in the standard include:
Transitioning from the old "line discharge class" (e.g., Class 1–5) to a more precise charge-based classification ( Qrscap Q sub r s end-sub Qthcap Q sub t h end-sub
, which aligns with modern metal-oxide surge arrester technologies. 1. What is IEC 60099-5? IEC 60099-5, part of the IEC 60099 series, focuses on selection and application . While IEC 60099-4 provides the