If anyone has read my recent posts, you know that I have been replacing ungrounded receptacles in a residence with grounding type. Also, so far this particular residence has no ground available in the device boxes. I'm running a seperate ground wire.
This has me wondering if those surge protection devices that plug into a grounding receptacle REQUIRE a ground to work properly. I noticed that the homeowner has a computer plugged into one of these and the receptacle has an open ground. Someone had improperly replaced an ungrounded receptacle with a grounding type. I have only grounded a few of their receptacles so far but I would like to advocate bringing some of these illegal ones up to code. In addition to making them code-compliant, I'd like to have a technical argument concerning the operation of the surge protection devices i.e. do they need a ground?
Don
