What is an ideal height of lightning arrestor rod if i want to protect the DG?

Question

I want to know what is the ideal height for lightning arrestor.

Does this height depend on the KVA rating of the equipment to be protected?

What should be the size of the rod for lightning arrestor?

Answer 1

It will provide a cone of protection with a ground radius of the approximate height.

So if you want to protect everything within a radius of 25', you want to mount it 25' high.

A blunt one will provide better protection than a tapered one.

As far as size goes, that may well be determined by the code where you live.