Originally Posted by gale
Actually I think that's not recommended. It's called Daisy Chaining and from everything I've read it's best to not do that.
Plug five protectors in a daisy chain (which is considered a human safety threat). Or plug all five (and the sewing machine) separately into six wall receptacles. You have not (electrically) changed the protection circuit. A protector does not sit between the machine and a surge. A sewing machine attached to one socket and the power strip protector plugged into an adjacent receptacle is an unchanged protection circuit (when the machine is plugged into the power strip).
Most do not know that due to lies and myths promoted by advertising. There is no magic surge blocker inside any surge protector. That magic is hyped by folklore and hearsay. A power strip manufacturer will not claim any surge protection in his numeric specs. He cannot lie in numeric specs. He can in advertising.
They are selling myths; not protection. A $3 power strip with some ten cent protector parts selling for $40 or $150 because so many believe advertising; not 100 years of well proven science. These protectors are promoted by the same subjective propaganda that also proved Saddam had WMDs. Advertising is that effective.