I have a device that comes with an AC adaptor, with the following description (whatever it all means): AC ADAPTOR CORD CONNECTED CLASS 2 POWER UNITS MODEL: TEAD-57-122000U INPUT: 120VAC 60Hz 36W OUTPUT: 12VDC 2A UL LISTED 4G38 E159614(T)
Then some diagram and MADE IN CHINA.
To me, it looks like a perfectly ordinary 2-prong adaptor. The instructions for the device that uses it (a shop machine with motors that run off the adaptor) say that it is important to ground it and that one needs to purchase a 3-prong adaptor and shows pictures of how it fits into a 3-prong wall socket.
I've done that in the past when I've connected stuff directly to wall sockets. There is usually a screw or something that one can use to connect a lead coming out of the 3-prong adaptor. However, at the moment, I want to plug it into a power strip and there is nothing to connect the lead wire to. So I'm not sure what to do.
Normally I wouldn't worry about it. I would just plug the 2 prong adaptor into the power strip and forget about the third hold. But I'm trying to do this as carefully as possible, including confronting possibly unnecessary details that might turn out to matter. So, with apologies in advance for what is undoubtedly the dumbest question of the new year so far, can someone please explain how to make sure the thing is properly grounded under these circumstances?