Grounding, also earthing, refers to the practice of providing a direct conductive path to the physical ground for an electric short to a chassis. Tag questions involving the installation or retrofitting of grounding with this.

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Potential Home Grounding Issue - Illinois

I recently bought a new manufactured home. There are instances where people have touched the front door and received an electric shock. Using a non-contact voltage detector, I confirmed that there ...
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128 views

Is water pipe grounding achieved thru pipe or thru water?

I've got a 1901 house, with copper (new) piping. Some of the electrical (old knob and tube circuits) are grounded to the water pipes. The copper pipe goes out to my shutoff valve located outside. so ...
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22 views

Rewiring Garage, building grounds

I'm rewiring my garage from in my opinion is an odd setup. In my house panel (200A split phase) there is a 20A breaker there is a junction somewhere ( I haven't traced it out yet which branches this ...
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1answer
187 views

Do I need to ground black gas pipe?

The backstory: My HVAC friend, my dad and myself installed new gas pipes in my house after the 40 y/o pipe started leaking. Suffice to say, the old pipe was beyond repair, every retightening of the ...
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27 views

Are metal face plates safe for metal gang boxes?

So if I understand household wiring correctly: The ground prong is meant to safely conduct stray current (shorts, etc) to the ground. All outlets and switches need to be grounded to the gang box. A ...
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1answer
41 views

Why would the documentation say to wire a pole of the 3-way occupancy switch to ground?

I'm currently wiring up an occupancy sensor to a 3-way switch, I'm leaving one of the mechanical switches in place, and here is the wiring instructions. according to the instructions I need to wire ...
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1answer
69 views

Where does the C wire connect in a dual transformer system?

When wiring a common ground (C wire) for a dual transformer system, does it matter which transformer you connect the ground too? I'd assume that the ground on either transformer would serve as a ...
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2answers
55 views

What could be causing an earthing fault in a specific socket?

When I connect a device to one specific plug socket, I get a current in the device body. When I connect the device to any other plug in my house, then the device is normal, i.e no current in the ...
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4answers
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Does a grounding wire from a breaker panel to an outside grounding rod need to be in conduit?

I've got a breaker panel in my detached garage (it is not a sub-panel, but is a primary forked off just past the meter). The panel seems to be wired correctly- the neutral and ground bars are tied ...
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3answers
64k views

Where does the ground wire go in a 3-prong dryer cord configuration?

We moved to a new place where the dryer connection is 3-prong instead of 4-prong. The dryer was originally 4-prong, so we bought a 3-prong cord and installed it. It works fine, except I am not ...
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0answers
62 views

Where should I bond neutral to ground? [duplicate]

I have an old house that was remodeled with a bathroom addition added years ago. I have two breaker panels: the outside service entrance panel (A) and another panel in the garage (B). I found bonds ...
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3answers
4k views

2 prong to 3 prong outlet help

I don't know too much about replacing outlets, only what I've read online or through YouTube videos. The house was built in the early 50s. Some outlets have been replaced (brand new kitchen) but some ...
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Would you ever wire white and ground together?

I was replacing some outlets in my house with tamper-resistant ones, and came across one where the white and ground were wired together, as seen in this picture. Why? Is that okay or appropriate ...
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3answers
7k views

3 wire service to panel… neutral and ground wires on the same bar?

I'm getting two conflicting reports and was wondering if anyone can help me. I was told that on the distribution panel, grounded conductors (neutral) and ground wires need to be separated in the ...
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1answer
31 views

Can I temporarily ground an outlet in my home to use a pressure washer outside it?

Can I temporarily ground an outlet by attaching a wire to its central screw and then to a grounding rod situated outside my house? I want to use an electrical pressure washer, but it requires a ...
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2answers
43 views

Light sconces tripping circuit breaker

I recently installed two sconces in our kitchen to replace some old halogen lights with LED bulbs. The boxes had three (?!) White wires twisted together, two black wires twisted, and one red. I ...
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2answers
4k views

Is my circuit breaker box grounded? If not, can it be?

I recently bought a house that was built in 1960. During the inspection, I was told that the majority of outlets weren't grounded. However, it appears a few are such as in the bathroom. How do I ...
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1answer
15 views

Stacked dryer washer grounding

I got a 10/3 wire for my Dryer/Washer stacked. There is a Ground attached to the Dryer/Washer. Can I attache the ground wire from my 10/3 directly to the ground on my Dryer/Washer?
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2answers
801 views

Suitability of flexible metallic conduit serving as ground

EDIT: The attached photo is the most easily accessible example of the conduit used in the entire house. This shows the conduit attached to the garbage disposal with the previously mentioned 3/4 set ...
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2answers
61 views

Can I connect the grounding conductor to the neutral when installing a remote for a ceiling fan in an ungrounded box?

I would like to install an in-wall remote control for a ceiling fan. The remote is wired up with two black wires (in and out) and a ground wire. It controls the fan's functions via wireless signal. ...
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2answers
9k views

Is ceiling fan missing grounding wire from the ceiling box, and is this safe?

I recently had a contractor/handyman install a Hunter ceiling fan for me. It worked great, but my wife came home and thought it was too big. I ordered a different Hunter fan, and figured I could ...
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1answer
48 views

surge protection — grounding in a slummy apartment without ground access

I live in an apartment, where NONE of the outlets are actually grounded although they're all 3 prong... my landlord is a slumlord, fundamentally. He has fixed absolutely nothing electrical (lighting ...
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4answers
554 views

Can armored bx cable come into contact with other metal objects?

I am running armored 12/2 bx to wire 4 high hats, the armored cable is grounded. There is a heating duct which I must go over, but the AC will come in contact with it... Is this ok or do I need to ...
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2answers
59 views

How to track down a short circuit in attic with pressed metal ceiling?

When switching on a light the circuit breaker tripped. On the distribution board, I switched off the sub-circuit for the light. The rest of the house and the plugs in the room with the light still ...
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2answers
175 views

Grounding requirements for main panel and subpanel

I recently had my main service professionally upgraded to 200A and had a 60A subpanel installed in my master suite to support future additions. All work passed city inspection, for whatever that's ...
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2answers
155 views

Can having a bad grounding situation destroy a circuit breaker?

We moved into a home, built a while ago. there are wires hanging and covered in black tape on a chimney. I bought 2 sconces and put them in place. i did not hook up the ground wire on one of them, ...
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1answer
90 views

How do I make ground connections at my receptacle boxes?

I searched for my question but could not find the answers. I had the inspector out for my rough in on electrical inspection. He said I did a very nice job but I need to make all my grounds at all my ...
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2answers
67 views

Replacing receptacle, ground and neutral are connected

My house was built in 1974. I have doubts the wiring has changed since then (aluminum everywhere) and have already noticed some bad things (downstairs potlights on same breaker as upstairs living ...
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0answers
59 views

Is there a safe alternative to electrical grounding for computers in Argentina?

I came across this APC product page for Microsol Isolator Modules, which purportedly provide "safe power in places with poor or nonexistent grounding." The unit is meant for Brazil, so it won't work ...
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3answers
2k views

Is it dangerous if the ground pin of a 3 prong plug breaks off in the outlet?

The grounding prong of a 3 prong plug broke off in an outlet. Could this be an electrical hazard should a child touch it?
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2answers
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How should I connect the ground wire for my light fixture?

I am replacing a light fixture in my bathroom and have the following setup: The electrical box is plastic The wire coming from supply has black (hot), white (neutral) and copper (ground). The light ...
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3answers
2k views

Is it okay to connect 2 ground wires to a single ground screw?

I have 2 ground wires that I can get around the ground screw on an outlet. Is it okay to do this or do I need to use a pigtail to join the wires and have only one wire attach to the ground screw?
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77 views

How to prove there is presence of electricity leakage?

Recently just moved to a new place that is above higher ground. I found that my joint crack more often and tingling feeling like there is energy running all over my body. It feels like there are ...
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1answer
63 views

Can a grounding rod be connected to service neutral only?

My grounding rod is connected to the service neutral at the weatherhead where it enters the house. Should it not be connected to the ground bar in the 200A breaker panel?
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438 views

Is it legal to wire a bath fan using load from top of GFI outlet?

Purchased a place and we are re-wiring the bathroom and putting in a standing shower. The bathroom is quite small so there is just enough room for this. There is a dedicated circuit, a round box above ...
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1answer
84 views

Will I get electrocuted if I contact a live wire on an earthed appliance?

I have an appliance that has the wires connected well and it has been grounded (earthed). If I accidentally get into contact with a live wire will I get electrocuted considering it has already been ...
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What is a 'grounded neutral' and how bad is it?

I bought an electrical device a few months ago. A few weeks ago, it failed, complete with the release of magic smoke. I contacted the company, and they've had me mail it to them and have been ...
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1answer
339 views

Must I ground my dishwasher to a metal plate?

I bought a Bosch 800 Series Dishwasher Model SHP68T55UC to install into my year 2000 house. Whenever I read tutorials online for installing dishwashers, I see that the ground wire goes to a metal ...
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98 views

Is it safe to ground/earth an extension cord with the radiator?

I just moved into a dutch student house without any grounded plugs which is quite usual around here. I get the 'Macbook Tingle' after some time, which solved by nudging the Macbook to the Radiator. ...
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3k views

How to fix an “open ground” on a receptacle that seems grounded?

In the master bedroom on one wall there are two receptacle that when tested shows “open ground”, I have replaced the receptacle on both (with new tamperproof receptacles) and while doing that checked ...
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177 views

What reasons are there to rewire an ungrounded circuit instead of adding GFCI protection?

The NEC allows replacing non-grounding-type (2-prong) receptacles with grounding-type (3-prong) receptacles by adding GFCI protection at the breaker or first outlet. What reasons might there be for ...
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72 views

Grounding subpanel to box - 'tap threads'

I've installed a subpanel and need to ground the grounding bar to the actual panel box. I was instructed to run a #6 jumper to a hole on the box, attach with a screw, making sure to 'tap threads'. ...
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2answers
188 views

Can I use conduit to ground an antenna?

I have an HD antenna mounted to a storage shed, not even as high as the house roof. It's close to where the electrical service enters the house. There's no ground rod in sight. (House built in 1971.) ...
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4answers
3k views

Could bad grounding cause sparks and fire when connecting the cable box and TV?

I just moved into a home built in 1955. During inspection, it was noted that none of the outlets were grounded even though they had three prong outlets installed. Per our agreement, the owner ...
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1answer
148 views

Can two ground rods be bonded via a PVC conduit above ground?

According to my understanding, if a supplementary ground rod is installed, it must be bonded to the existing rod via a buried 6 AWG cable (NFPA 70). However, because virtually every side of my house ...
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2answers
276 views

What options are there to achieve both grounding/ground-fault and arc-fault protection on old 2-wire circuits?

The three receptacle circuits in my house are 2-wire NM, but have 3-prong receptacles. My electrician recommended and installed GFCI breakers to provide "grounding" to these circuits. I now realize ...
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242 views

Outlets not grounded? Remedy?

For some months, I'm renting an apartment in the Canary Islands. It looks like the plugs are not grounded. For example, when I connect my laptop, a ThinkPad T420si, then I feel an unpleasant sensation ...
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1answer
186 views

Adding electrical service to detached garage

Please let me know if this sounds correct- Sub panel fed from 80amp breaker in main building 200amp load center. Roughly 75' of 1" PVC conduit from existing load panel, under existing timber deck, ...
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1answer
5k views

Why doesn't my motion sensor light work?

I want to install a simple motion sensor (Lutron Maestro MS-OPS2) on a single pole switch in my garage. When I installed it the light would not turn off. The instructions (PDF) that come with the ...
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197 views

Cloth-covered NM questions

My 50s era ranch home is wired using cloth-covered NM, as you can see in these photos (taken in a basement closet located under the stairwell where the NM is run exposed): Should I be suspicious ...