Thank you all,
Many or these solutions have been considered @Donut417 has the right of it though, if power coming in takes a direct hit then stopping that kind of amperage is futile.
I think the Line Interactive UPS or full online UPS may be the go.
The two edit systems we have use these although they also get unplugged when not in use.
The server is also Air gaped from the rest of the network, only connected to the two edit pcs via fibre.
Mother nature can be a bitch