and a side note:
Most of the electrical issues one might encounter, such as the story mentioned above, is not necessarily a problem that effects individual RVs, or their electrical systems, but effects the electrical system in the area, at the park, or even a whole city. A transformer having an issue, whether lightning strike, or just because it was old and on it's last leg and the summer's demands brought it down, only creates a loss of electricity - i.e., the power goes out.
It effects everyone exactly the same: power loss.
Power Loss is not anything that can 'fry' your RV, or cause any issue whatsoever, no more than when you pull the shore power plug when you are ready to leave - you are simply losing power. RVs are designed for that. They are engineered that way. They are mobile. They even EXPECT to lose power. None of that, in itself, is harmful.
Your home loses power, and then eventually it is restored. Nothing changes, and you didn't have an EMS or protection for it... why the need for one for the RV?
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