I have a Janome 11000; it is plugged into a single-plug Surge Master which, in turn, is plugged into a Surge Master bar. I also have stereo components, pressure iron/steamer, and shop light plugged into that bar. The bar is always turned off when I'm not using any of those things and I never have it on when we have one of our frequent electrical storms. I have all my computer equipment plugged into an APC battery backup ... this is the second battery backup I've had ... a lightning bolt recently killed the first one, but it did its job of shutting down my computer first, so there was no harm done to anything else. The backup was still under warranty, so I was out of pocket only for the $$$ it cost to ship it back to the company.
I have to get down on my belly and crawl under my sewing desk to unplug the bar and again to plug it back in ... that's not likely to happen!