Here is a very non biased opinion... (tongue firmly implanted in cheek)... It is the strikes in the 0-2 mile zone that induce the damaging currents in all conductors.
http://www.surge-suppression.org/ From: Jason McKemie Sent: Friday, February 17, 2017 1:35 PM To: af@afmug.com Subject: [AFMUG] Lightening protection I'm curious if anyone else has seen a benefit to installing suppression outdoors near the radio in tower situations (either straight DC or PoE). I've seen mixed results with this, but had a couple of situations last season that had me wondering if it would make a difference. -Jason