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Installing additional outlet to the same line

I know, it sounds rudimentary, but I don't want to make a mistake.
I have two dedicated power lines going to the same wall location, terminated with double outlet each. I need to add one more outlet to each of the two lines, so I'll have 4 total outlets connected to 2 lines.
I have replaced outlets before, so I do know how to do it, bu the wiring diagram, I'm not so sure about.
Thanks in advance
maril555
meiwan
399 posts
 
Each outlet has 2 sets of positive and negative connectors plus one common ground.

Use the second set of connectors (unused) to link the second outlet to the first.

If unclear, call an electrician.
maril555 OP
619 posts
 
Meiwan,
Thank you, that was one of the options I considered. Wasn't sure every outlet has two sets of + and - connectors.
Question- how do i connect ground wire? I don't think there is a second ground connector.
The other option is to make two sets of jumpers from the power line, each connected to one of the two outlets.
rodman99999
6,030 posts
 
Be certain to connect the black(hot) wires to the brass colored screws and the white ones(neutral), to the nickle colored screws, so you don't reverse phase, between the outlets. Regarding the ground: just get some crimp-on, spade terminals and you can attach two wires(Romex ground and jumper) to your existing outlet's ground screw. (http://www.wiringproducts.com/contents/en-us/d150_fork_spade_terminals.html)
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