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Chicago doesn't have ground wires. Everything in Chicago is in metal conduit with metal boxes. Those, together, provide the grounding system for everything. I mean, you're allowed to add ground wires if you really want to - belt and suspenders. Every junction box should have a screw hole that is pre-tapped #10-32 for a ground screw. (you can also add them ...


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Straight from the linked Amazon page: Neutral wire required; That is all that matters. There may be other issues - the page talks about all kinds of certifications but not UL listing, though if it is properly ETL listed (as seems to be indicated), that should be equivalent. But it is quite clear about the neutral. Not "neutral optional" or "...


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If and only if the dimmer's instructions say so Bootlegging neutral off ground is not allowed, no. However, a small number of dimmers are made to do that. The instructions say to use ground for neutral if neutral is not available; otherwise they want you to use neutral. This method has been approved by UL, and they approved the instructions as part of ...


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Can you determine if the screw(s) holding the cover-plate of the two-prong outlets are connected to a good ground? In many countries, before grounded outlets were deployed, the receptacle box was grounded through armored (BX) cable. Since that may be questionable in your location, check local rules and, perhaps check resistance to an earth ground or the ...


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