07:06AM | 06/19/04
Member Since: 06/18/04
1 lifetime posts
my old 1953 house has 2-prong circuit/voltage tester is telling me that the receptacle is grounded (i touched the tester to the hot slot and the other wire to the screw that holds the receptacle cover and it lit up)...the box that the receptacle is in is metal and the wires going into and out of it are contained in a brown cloth-like cable...

can i:

1. replace the receptacle with a self-grounded 3-prong receptacle?

2. attach a clip or screw to the metal box, connect a green grounding wire to it then connect this green wire to the 3-prong receptacle's ground screw?

3. install a gfci receptacle (i don't really want to do that but will if i absolutely have to)?

i think i can do all 3 options but i'd rather hear that from an expert (or two)...

thank you so much for any insight you can provide...

Tom O

04:03AM | 06/20/04
Member Since: 09/17/02
477 lifetime posts
Somehow, I doubt that you really have an equipment ground available at teach box. The cable you describe is the old version of non-metallic sheathed cable and the physical description sounds about right for that era. It did not contain an equipment ground.

If your tester uses a neon lamp, you may be getting a false indication of ground. Before betting your life on an inexpensive tester, hire an electrician to come ouot & check to see if the boxes really are grounded.

1. If the metal box should prove to be properly grounded, yes.

2.If the box is properly grounded and the device yoke will make metal to metal contact, don't bother with clips, screws or jumpers. You'll need to remove the little retaining washer from the screws. Or, you can buy receptacles that have a spring clip that assures positive contact. The spring holds one of the screws in place. Again, you won't need to mess with clips, screws or jumpers. If you like doing electrical work, your way is also acceptable.

3. Permitted, but it is not a solution for all locations. The NEC requires certain equipment (if it is not double insulated) to be grounded and there are no exceptions that allow the use of an ungrounded GFI for this instance.



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

If you are interested in more about fans and air conditioning, consider: How To: Install a Ceiling Fan How To: Choos... It turns out that many bath and kitchen cleansers contain chemicals that are dangerous to the skin and eyes, and often pro... So often we paint tiny nooks white to make them appear larger, but opting for a dark, dramatic wall color like this one—Be... Chocolate-colored walls and large window frames allow the exposed wood beams to take center stage in this small screened p... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... Like no other floor type, a checkerboard design works wonders to underscore the retro kitchen theme. Vinyl flooring, ceram... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... If you put the washing machine in the mudroom, you can stop the kids from walking through the house in dirty, grass-staine...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon