SearchAsk us anythingarrow rightCan I use Romex as an extension cord?A Romex cord is not very flexible and it's not generally used for extension cables. It's not recommend for use in that capacity.Let's Get It Fixed!Our virtual experts can diagnose your issue (for free!) and resolve simple problems.Chat with a live expertChat nowCall 1 (855) 466-3948Call nowRATESHARECopy linkTwitterFacebookmagnifying glassLink copied to clipboard.SUBMIT AN ANSWERShop Recommended ProductsShop HomeX Recommended ProductsRELATED QUESTIONSCan I run an extension cord through a wall?Only temporary use of extension cords. You can't run them in or out of a wall. It is a violation, yes.Can I use a heavy duty extension cord with space heater?An extension cord should never be used on a space heater. Space heaters draw a lot of power and should always be plugged into an electrical wall outlet. Some people say the extension cord is safe because it is a heavy duty type.Can I use a 2 pole breaker for 120v?A double pole breaker is required for a 120V circuit. A two pole breaker is needed if 3 wire romex is used as a branch circuit to supply two 120V circuits.Can I use 12 gauge wire on a 15 amp receptacle?What size of wire should I use? Use #14 copper wire or #12 copper-clad aluminum wire. This circuit is rated for 15 Amps. You can use either #12 copper wire or #10 copper-clad aluminum wire for a 20-Amp circuit.Can I use an extension cord to power an outlet?An extension cord can be plugged into the electrical system. If you want to plug an extension cord into a power strip, this is the time. When not being used, extension cords are not to be plugged into wall outlets.Can you wire an extension cord to an outlet?There are 2 brass screws on each side of the electrical outlet. Is that correct? Attach the third ground wire to either the green screw in the bottom of the electrical box or the green screw on the electrical outlet, if you are using an extension cord with it.