Quoted from hank527:What about a cheap surge protector on the wall and then going into a higher end one?
The thought would be that the first surge would blow and if it made it through that the second layer would stop whatever was left?
I'm in this boat as well but unplugging 30 machines is a pain in the ass. So I did wall mounted surge protectors going into a higher end cyberlink protector. Any thoughts on this?
Unfortunately, cheap protectors use MOV's for so called 'surge' protection. And 'surge' is such a misnomer. An MOV shunts high peaks in voltage somewhere, and it only does it once. Once it is hit, it no longer works, but you or your surge protector won't know that. They're really built for taking a spike out of minimal voltage like a dryer motor kicking on. Not 10,000 volts from a lightning strike. And guess where that MOV shunts the spike. To ground. Now, you're outlet is not directly connected to earth ground, but to ground via a bunch of romex cables in the walls with ground splices everywhere. So that MOV just sent the high voltage spike through all those grounds connected to all sorts of equipment before it finally reaches earth ground back at your distribution panel. You're almost better off, NOT having a cheap surge protector in use for lightning.
The best you can do is unplug them. The next best is to install a whole house protector at your panel box with a short direct connection to earth ground. The worst is to use surge protector strips.