grounding gcfi outlets with metal box in old house I've replaced some old GFCI receptacles in my kitchen, which live in metal electrical boxes. The old GFCIs did not have grounding conductors attached, but it seems that the boxes themselves are grounded. A shielding gas is required to protect the weld puddle from atmospheric contamination during GMA (MIG) welding. The most common shielding gas used for collision repair welding of mild and high-strength steels is a mix of 75 percent argon and 25 percent CO2.
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The real version is fitting 3-prong outlets in grandfathered 2-prong sites require ground, or, may instead be GFCI protected. The GFCI protection doesn't need to be at the . I've replaced some old GFCI receptacles in my kitchen, which live in metal electrical boxes. The old GFCIs did not have grounding conductors attached, but it seems that the boxes themselves are grounded. If you have an old fuse box, not a panel with breakers you can also replace that metal outlet box with a deep plastic rework box. This box will give you more room for the larger device. At some point, you will want to upgrade the . Yes, use the "no equipment ground" labels that came with the GFCI receptacle when you replace an older 2 prong receptacle with the GFCI and you don't see ground wires .
One of the recommended approaches to grounding outlets in an old house is by replacing 2-prong receptacles with 3-prong GFCI receptacles. GFCI (Ground Fault Circuit . In this video, This Old House master electrician Heath Eastman teaches host Kevin O'Connor everything he needs to know about ground fault circuit interrupters. .
Replace with a grounding-type receptacle. If you have a branch circuit with a series of daisy-chained receptacles around a room, you can install a GFCI receptacle in the first receptacle box as mentioned above, then install .
The NEC allows a listed self grounding receptacle to bond the device to the metal box. My electrical answers are based on 2017 NEC, you may have local amendments. . If running new wiring isn’t feasible, installing a GFCI outlet is an acceptable alternative. GFCIs detect ground faults and quickly shut off power to prevent shocks. You can install a GFCI in four steps: Turn off the power to the . Where a grounding means exists in the receptacle box, three-prong grounding-type receptacles must be installed as replacements. The green grounding terminal on the receptacle must be connected to the grounding .If the box is properly grounded, yes you can ground your outlet to it. There is nothing unsafe or "bootleg" about that. There are even self grounding outlets you can buy that have a specially-designed strap that lets the outlet become grounded simply by screwing it to a grounded metal box, no wiring required. In the early '60s it was common to ground boxes but not have .
Under current/recent NEC rules I believe the grounding pigtail is required, so that the outlet will still be grounded even if it's not screwed to the box [or because the ground pigtail is regarded as a better connection to the box than the mounting screws are, I'm less sure of the intent than that current rules require the pigtail.]. Consider that if they considered the mounting . A grounding receptacle mounted in a recessed box must either be connected to an equipment grounding conductor (which shall also be connected to the metal box), or be listed as self grounding and attached to a grounded metal box. An intact metal raceway system may satisfy the equipment grounding conductor for the box and receptacle. Background:. The kitchen area outlets, all 2-prong, seem to be original to our 1950s California house, or perhaps modified in the late 1960s. In preparation for installing a grounding wire "bus" to properly ground the outlets, and convert them to 3-prong GFCI outlets, I (a) took off the faceplate from one counter outlet to see what I could see (photos below) and . If your house is very old you may have metallic tubes that contains the wires. If you open an ungrounded outlet and find a metal box with metal conduit connections, simply replace the outlet with a grounded outlet and connect the ground by a wire to the metal box. Romex always has a ground wire. Before Romex wires had to be in a metallic tube.
Same situation for me. House has ungrounded 3 prong receptacles. Can i replace with a new 3 prong that has a green screw and can i just use a ground tail? That runs from the ground screw on the receptacle to the back of the metal box with a 10-32? No ground wire makes me think the panel is not grounded.
Self-grounding receptacles will only work if from the box you have has an effective ground path back to your panel. So if you have Romex coming into the box, the ground from that romex would have to be grounded to the box for a self grounding receptacle to be effective.If you replace a two-prong receptacle with a three-prong receptacle, each receptacle replaced must be a GFCI, and the receptacle must be labeled "No Equipment Ground". If there is grounding wire, you can wire a normal 3-prong. If there is no grounding wire, you cannot ground to the metal box because there is still no path for current to travel.Earth ground, motherboard digital ground, TV floating ground, appliance chassis ground, and breaker box neutral bus bar ground are all electrically different - even if interconnected. Protection means that potentially destructive current connects low impedance (ie less than 10 feet) to single point 'earth' ground. P.S. on the metal boxes -- since it sounds like your house is a mix of K&T and other wiring techniques (perhaps NM additions), you cannot ground to the boxes -- that technique only works if your house was wired with BX/AC, MC, or metallic conduit (RMC/IMC/EMT).
Option A: take out the outlet, use a sawzall to cut out the old box (shut the circuit off first, of course), pop in an old work Carlon plastic box, and install a GFCI outlet. Option B: Purchase a GFCI breaker for the circuits you need to cover, and install at the panel. Yup, ground wire from the cable must go straight to the ground screw on the metal box. The outlet will pick up ground automagically via the steel domed cover. Just make a J-hook anyway you can, and put it on the green screw. I would expect the ground wire to be #10 or #8 at the absolute worst. Also, that cable clamp looks way too small for 6/2 . Understanding how to replace electrical outlet in an old house not only ensures the safety and efficiency of your beloved abode but also preserves its vintage charm with modern conveniences. As you embark on this electrifying DIY adventure, remember, that every tweak and change you make resonates with the stories of the past while crafting new .Tested the wires and found the prior homeowner wired them backward. I used white and black electrical tape to label the old wire correctly and installed the GFCI with new dogtails I also installed a ground wire from the GFCI to the box. I also added the "no equipment ground" sticker to the face plate. However, I've since watched a few YouTube .
My new house was built in 1966 and I've been told by the inspector and the electrician that put in the GFCI outlets that the meter and box are grounded but that no third wire was run through the house. When I installed the first GFCI there 20 years ago, I clipped a ground wire from the receptacle to the box, but it still tested as "open ground." So that box appears to not be grounded. Oddly enough, the kitchen boxes do test as grounded, as well as some in the living room and one of the bedrooms.
My house was built in 1957. It has the old, non-grounded “cloth” wiring. . personally, I had to update my '65 house since it was the same 2 wiring all over to an older fuse box. You can GFCI the individual outlets, like they have in kitchens/bathrooms or in other places. . When you put in a new grounding outlet, the metal yoke on the .
It is even more important to use the grounding screw on a GFCI outlet because of the built-in breaker. Also keep in mind that if you are using a metal junction box with outlets the electrical supply cord needs to be 12- / 14-gauge for 15-Amps. . looking thru my old posts I .
The grounding conductor attached to the old pancake box below using a grounding clip can only be used if a grounded BX cable or metal conduit is connected to this old box. Grounding clips are helpful when a tapped hole for a ground screw is unavailable. Old pancake box with a grounding conductor attached with a ground clip
Leviton self-grounding outlets is one option. Or GFCI outlets. . Self grounding outlets only work if the outlets are in metal boxes with metal raceways that are grounded. Most houses have plastic boxes. Installing a self grounding outlet on a plastic box will do nothing. . Opened up a concrete-cover in the garden of an old house. Filled .I have an older home and I replaced a 2 prong receptacle with a GFCI receptacle. It has a hot and neutral but no ground wire. There is also a double switch (lights and fan) in the metal junction box. The switches are powered by the GFCI receptable. The wiring for the double switch looks to be newer as they both have ground wires.
Some devices are rated for equipment ground - they have little brass squares on the tabs to make a continuous bond. Though this is so you can ground the box and bond the outlet to the box, not so you can wire the ground to the outlet then bond the box to it. It's electrically identical, but the latter would cause some confusion to the next person.
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Depending on when your house was built - the box may not have a ground wire, or the ground wire in the box might not run all the way back to your panel. Sometimes - outlets are grounded through the metal box+conduit running back to your panel (this is common in older houses). If that’s the case - self-grounding outlets are your friend.Unless you think they ran ground to all the boxes and then just forgot to connect the receptacles, I stand by the advice to not just "ground" the receptacle to the metal box. That is in fact what I have seen in old houses in the past: homeowners replacing two prong outlets with three prong ones and connecting the receptacle to the metal box . The house wiring isn't 80, but it is old enough to have Wadsworth breakers. The outlets are not grounded, and someone said if I get GFCI outlets this will ground the outlet (put on in each room they said.) One person said if I don't, my computer and electronics will get surges or fry. The house is grounded, but not the receptacles.The only trouble you may have, old houses often have smaller, metal boxes, and GFCI's are a bit bulkier than normal receptacles, so you may have to stuff some of your wiring back into the wall if you run out of space. GFCI outlets also use a different style of wallplate (usually called a decora plate), so you'll need one of those.
retrofit gfci into metal box
leviton gfci self grounding outlet
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grounding gcfi outlets with metal box in old house|attaching gfci to metal box