I have some network equipment that I want to connect to ground (they come with 2-prong wall wart PSUs and have a separate screw hole for a grounding pigtail) - but where would I get ground from in a regular home?
For me, the obvious choice would be an existing wall outlet (regular USA 120V 15A NEMA 5-15R). But I don't need the 120V, I kinda just want to get the ground, connect it to a copper grounding strip or bus bar, and then connect grounding pigtails to that.
If that is sane, then I wonder: How would I get the ground out of the wall socket? I guess I could just jam a banana plug or something into the grounding hole, or cut open a power cable and make sure the +/- electrical plugs aren't connected. But that seems hack-ish and dangerous.
But there also don't seem to be "simple" NEMA 5-15R-ground-taps available (kinda the exact opposite of this), which makes me wonder if a) this approach is actually the correct one and b) whether there might be a much simpler/better way to get ground from somewhere in a regular home. (A non-corrosive steel post outside isn't an option really here, no good way to run a wire into the room)