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2

In general, yes; in terms of grounding this is no different from plugging such a cord directly into an outlet. Where you need to be careful is that your extension cord is rated for the power that your device is going to draw, but this has nothing to do with two-prong vs. three-prong plugs. (Also, grounded extension cords are typically rated for more current ...


19

If the power cord on the router is one of the modern type like this ... Picture Source ... with one blade wider than the other then you have a polarized plug with the neutral routed through that wider prong. You want to make sure to properly orient the plug at the extension cord so that the wider blade goes into the wider slot. Note that there are lower ...


35

Yes you can safely plug the appliance into a 3-wire cord and plug set, as long as that is the factory installed cord and plug on the router. Appliances that are double insulated do not require an equipment grounding conductor to earth because the live electrical parts are specially separated/insulated from the case in a way that prevents any single failure ...


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