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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27 views

How to ground antenna that is on shed with cable running underground to house

I want to mount a TV antenna to my shed in my back yard and run the wire underground to my house. Google has led me to a lot of explanation of grounding with the antenna on the house and it states ...
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0answers
21 views

grounding for large building [closed]

we are rehabbing a large loft 10 stories and about 10,000 per floor for business and residential as the top officials of the business will have a floor to them selves to live on here is what we have ...
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0answers
21 views

TV Arcs with Cablebox through both Coax and HDMI [duplicate]

Here is our setup Outlet in older house that was replaced with a GFI last year. (no issues until recent) The GFI doesn't have a ground wire running up from the basement. Just the white and black ...
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2answers
60 views

Installing a fixture with no ground, no ceiling box

I recently bought some nice track lighting to brighten a room who's only light source was buried in a corner. I removed the old fixture and found (to my horror) this: Two wires, no ground, no box ...
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1answer
52 views

Ceiling Fan Install - Ground Wire

I' removed an old ceiling fan and I am replacing it with a new one. My home was built in the 60s and I'm installing so it works off one switch. After the removing the old fan the ceiling revealed two ...
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3answers
105 views

Should data ground wires be attached to plumbing?

I have ground wires attached to copper plumbing on the house side of the dielectric coupling. The telephone service box has a ground wire which I found attached to copper plumbing. The satellite ...
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1answer
64 views

How do I properly ground a light fixture?

I installed a light fixture in my bathroom and need help grounding it properly. The previous fixture wasn't grounded. When I removed the fixture, there were two wires, one black and one white, from ...
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0answers
26 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
82 views

Is it okay to drill a ground rod through pavement?

All the sides of my house are paved, and I need to drive a new ground rod for an antenna. Would it be against code (NEC) to drill a hole in the concrete to pound in a ground rod? Bonus question: How ...
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2answers
68 views

How far does a ground rod need to be from the foundation?

I need to ground an antenna strapped to my chimney, which requires hammering in a new ground rod. However, the entire side of my house is paved, meaning I can't dig it up to find the foundation ...
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2answers
113 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
154 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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2answers
276 views

Does an extension cord from 2 to 3 prongs have any benefits?

If you're plugging a device with a 2-prong plug into an extension cord that has 3 prongs on the other end, does that give it the grounding benefit of the third prong?
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1answer
170 views

Do I need to ground Ethernet cable run beneath a pier & beam house?

I'm fairly amateur when it comes to home networking, though I get the basic concepts. I bought a 1000' spool of this Cat6 Ethernet cable, simply because it was the only outdoor-rated cable sold by ...
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2answers
84 views

Where do I attach the earth conductor on a plastic fixture?

I'm replacing some outdoor lights. The old ones were metal, and the earth wire was connected to a screw on the base. The new fixtures are plastic, and there's no earthing screw. Where should I connect ...
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1answer
51 views

A ground rod where a drain needs to go

My house sits on a hill, and the gutters don't properly drain. As a result, I'm digging a new drain along the side of the house to re-route the water. However, while digging the drain, I came upon a ...
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4answers
223 views

How to solve a miswiring of neutral and ground

An Outlet in the dining room which had a microwave plugged into it stopped working. I found 120+ volts from hot to ground and 96+ from hot to neutral. Also at one point my "three light tester" showed ...
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2answers
258 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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4answers
157 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
250 views

Japanese Appliance has a Green/Yellow Ground Wire coming out of it, What should I do?

So I recently purchased a Japanese Toiletseat thing (I can't read japanese but I've just been translating little by little), and it has a ground wire (a green/yellow wire) Coming out of the back, ...
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1answer
69 views

Does HVAC lineset need to be grounded?

My HVAC contractor says the installation of the line set between the air handler and the condenser outside is complete but he has not grounded the lines. Do HVAC copper pipes need to be grounded?
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0answers
39 views

Ligth Switch with 4 wires

I removed an old light-switch and the following appeared: I went to Brico, showed them the old switch, and got the one below. I am wondering a bit how to connect it. I am a bit worried that I only ...
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3answers
763 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
58 views

New Fan Switch Grounding Cable issues

I installed a new switch for a new ceiling fan. For power, I pigtailed the 3 wire cable to my new switch from an existing light switch. My problem is with the newly installed ground cable. The 2 ...
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2answers
146 views

What do I do with the ground wire?

I just bought a wall timer to replace a three-way switch. The wall timer comes with three wires, one for the common screw wire, and the other two are for the travelers, with no place for a ground ...
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1answer
118 views

Integrating into knob-and-tube wiring: okay to borrow a ground [duplicate]

I have a mixture of knob-and-tube and NM-B. If I'm extending from knob and tube, but I have a (different) an NM-B circuit nearby, is it technically allowable to ground via ground wire in the other ...
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5answers
1k views

Since neutral is connected to ground how is current kept off of ground?

If neutral is connected to ground and current desires ground then I would think it would go to ground. But my understanding is that it is kept off of ground until it's "upstream" of the breaker box, ...
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1answer
268 views

Where do I attach the fixture grounding wire when no supply grounding wire is provided?

I am replacing an undercounter light and I have a black, white and red supply wire but no green or bare copper supply wire. Where do I attach the green ground wire attached to the fixture?
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1answer
400 views

How do I add grounding to my old electrical wiring?

This old house is (50's) is wired with cloth covered 12/2 Romex with no ground and all metal boxes. Can I just run a 12 ga or 14 ga solid wire between boxes and then to the ground bus of my service ...
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2answers
934 views

Can I terminate a ground wire to the neutral bus if the ground bus is full?

I have a Crouse-Hinds main load center. The ground bus is at the top left of panel and the neutral bus is at the bottom right of the panel. I want to add a 15 amp circuit for two outlets in my ...
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1answer
150 views

Ground wire behaves weird

I never experienced this and it doesn't really make sense. I installed recessed lights(6) with the switch. I connected them all in parallel. The house uses only two wires for lights, white and black. ...
4
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1answer
186 views

Why do I hear intermittent speaker hum that goes away when I turn lights off or on?

I'm hearing speaker hum in a stereo system that I recently hooked up. I can't pinpoint when the hum begins, but I've identified that turning certain lights off or on in the same room eliminates the ...
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1answer
2k 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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1answer
93 views

Why do I detect voltage on my ground of surge protector?

Renting an older home and upon moving in was saddened to see outlets without grounds (two prongs). So, for one of the outlets I bought a 2 to 3 prong with ground clip and ran the ground to some vent ...
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2answers
509 views

How should I connect to a short ground wire in a metal box?

I live in a 50's era house that has breakers and a ground wire in every metal box of the house. The problem is they only used 2 prong outlets. They cut the ground wire short and wrapped it around the ...
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4answers
7k views

I have a 3-pronged receptacle but no ground wire connected to it. Is this ok?

I removed the plates from outlets to paint walls and noticed that some of my electric boxes have ground wires connected to outlets while others do not have a green wire at all. Is this ok? I know ...
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2answers
19k 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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1answer
4k views

Is it okay to have an ungrounded light fixture?

I recently moved into an older home (built in 1968) and have been replacing some of the older light fixtures. We pulled down one of the lights and found that there is a ground running into the box but ...
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2answers
248 views

Are directTV dishes energized in some way?

Are directTV dishes usually energized in some way? I was recently at my grandmothers house installing an over the air digital tv antenna. I decided to use the same coax cable that originally ran to ...
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2answers
3k views

Is there a length limit on grounding conductor to ground rod?

My service panel is over a concrete patio, it was improperly grounded in the crawlspace. I cannot drive a proper ground rod in the crawlspace so I would like to drive one into the earth on the side ...
4
votes
1answer
2k views

How many ground rods are required for panel and subpanel?

I have a main service panel with two breakers: the main service breaker and a single large breaker to another subpanel in the same structure. All other circuits are serviced from the subpanel. My ...
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3answers
1k views

Can I attach the main ground from my service panel to the old steel water main in my house?

My current main ground is improperly connected to the water line in my house and I am planning on changing it this week. It is "connected" to (read: formerly soldered, now kind-of-sort-of laying on) a ...
3
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1answer
775 views

DIY solution for open ground wiring where electronics need to be plugged in?

Although many of the original two-prong outlets in a rental property (built around 1958) have been replaced with three-prong ones almost none of them are actually grounded (the couple that are ...
4
votes
1answer
272 views

How would I ground an internal ethernet surge protector?

I have a Cat-6 cable running to an external PoE security camera that I'd like to have surge protected, but I'm unsure how to ground the protector. It has a prong coming off that I assume is the ground ...
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1answer
5k views

Where do I attach the grounding conductor to my bedroom light fixture?

I have a problem, I broke the center piece that holds the glass part on my light fixture in my room. I purchased a replacement and removed the two screws holding my fixture on to the ceiling. Now I ...
4
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2answers
760 views

How should I ground two switches in a handy box that were previously ungrounded?

I am replacing two light switches in my bathroom. One controls the light above the sink and the other controls the fan in the ceiling. When I took the old switches out, I saw that the three neutrals ...
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2answers
2k views

Can I extend the ground/bus bar in a main service to accomodate subpanel equipment ground?

I am about to replace the main service breaker panel in my house. The old panel (a 200amp Siemens 40-circuit) had bus bars that extended the entire vertical length of the box. The new panel I would ...
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1answer
247 views

Can I obtain grounding from a different outlet?

I have a room with 2 ungrounded (2-prong) outlets and 1 switched grounded (3-prong) outlet. This has not been a serious inconvenience so far, as most of the equipment I wish to connect has ungrounded ...
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2answers
909 views

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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2answers
445 views

Is this switch properly grounded?

I replaced a standard single pole switch with an Intermatic ST01 timer switch, into a metal electrical box with three other switches. The switch I was replacing had no ground connection, but some of ...