[quote=“Pantastic, post:35, topic:765767”]
Yeah, like I said a typical consumer UPS will offer a reasonably good level of surge protection plus battery backup for a home user at a cost that’s affordable,/QUOTE]
Even though none of its specification numbers claim that protection? Where is any spec number to justify that believe? Hundreds of joule (near zero) surge is convert by electronics into DC voltages to power its semiconductors. So the UPS protects from something that is not destructive.
What does a UPS do when a destructive (ie hundreds of thousands of joules) surge happens? Facilities that cannot have damage do not use that UPS. Facilities and homes with effective protection implement single point earth ground. And protectors or a hardwire connected low impedance (ie less than 10 feet) to that ground. Only then add protectors on branch circuits when an additional (maybe 0.2%) protection is desired.
If that ‘whole house’ solution does not exist, then adjacent protectors can even make damage easier. Another problem is fire.
Dr Martzloff discuses this in his Oct 1994 IEEE paper. His first conclusion says what happens when plug-in protectors are used without properly earthed (whole house) protection. We who did this stuff for decades have seen this often:
OP had no reason to fear a blackout. If protecting appliances is desired, then only a ‘whole house’ solution is needed.
That near zero joule and adjacent protector never claims to protect from anomalies that are destructive. Blackouts do not damage appliances. Linemen error do. Money is best spent on an earthed ‘whole house’ solution. So easy and inexpensive as to even be sold in Lowes or Home Depot. Or installed by a girl who also reads electric meters.
Blackouts and power restoration do not create destructive surges.