Return to the Electrical Wiring Forum | Post a Follow-Up

retro fitting non grounded receptacles

Posted by larry1987 (My Page) on
Thu, May 13, 10 at 2:03

have a simple question: i would like to replace the old non ground receps in my 1955 house with grounded, three prong receps. each existing outlet box is metal and has a white and black entering the box but no green or bare wire. how would you suggest i install the new receps with 3 prongs? Should i use those "green clips" that attached to the side of metal boxes and that hold the bare wire which is then screwed onto the green ground screw of the new recep? what is the right way to go? thanks!! larry

Follow-Up Postings:

RE: retro fitting non grounded receptacles

You need to determine if the box is actually grounded before you can use those clips.

You can use GFCI receptacles and not connect anything to the ground screw. You will be able to plug in three prong devices but they will still not be grounded.

RE: retro fitting non grounded receptacles

Or you can just replace the old 2-prong with new 2-prong.

RE: retro fitting non grounded receptacles

I assume you want a ground for the added safety. If so, your "ground" needs to be connected to an actual ground. It is not safe to assume that all metal boxes are grounded. If it is just a metal box in the wall, then that won't help at all.

If those boxes aren't connected to ground, you would need to run new cable to each outlet you want grounded.

RE: retro fitting non grounded receptacles

You can obtain nearly the same level of protection by using GFCI receptacles.

This is a code approved way to put 3-hole receptacles on a circuit without a grounding conductor.

Every GFCI receptacle comes with the required stickers.
The 'No equipment ground sticker' goes on the GFCI receptacle, while any downstream (load side of the GFCI) 3-hole duplex receptacles get the 'GFCI protected' AND a 'No equipment ground' stickers.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Electrical Wiring Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here