Be aware that the laws and requirements for grounding (and associated lighting protection) vary across the globe and within a country, to the point where something required in one location is illegal in another.

I've been attempting to quantify this in a podcast episode for years, but it's currently beyond my resources to adequately document, let alone explain succinctly.

In my opinion your best bet is a locally licensed electrician or better yet, one who is also an amateur.

Fair warning, this rabbit hole goes deep .. very deep!