Induction might be more of a problem than a direct lightning hit.
I doubt any filter will survive a direct lightning hit.
I see more problems in higher voltages due to induction. You will only smoke some diveices, and there is no clear mark of a lightning hit. Perhaps hard to explain to the insurances company. I guess you cannot claim damage to the power company for supplying much more than normal voltages ?

Jaco

Sold all M equipment