Use only power surge protection when your outlet voltage is not stable to reduce the overflow voltage. So, surge protection could help  reduce the risk of any parts of your miner.

however, if your miner is always shutdown every time your area is blackout without shutting it down your miner can  damage unless if you are using other bootable OS like ethOS or smOS these OS that I know it's safe for blackouts Also, I suggest you if you are using h110 btc pro you can set the bios to auto power on everytime your miner shutoff.