[TowerTalk] Grounding of cables to tower?

[Shawn Donley]

Jim wrote:


"In your case, one could put a 1:1 transformer at the remote building,
primary side fed from the house, secondary side feeding your subpanel,
where neutral and ground would be connected(because it's an entirely
separate system). There would be no "ground path" from house to garage."


I wonder what the breakdown voltage would be between the primary and secondary of such a transformer, and what might happen to it of the tower took a direct strike  (tower bonded to the sub-panel)?