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Questions tagged [grounding]

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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6
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6answers
438 views

Buzzing on laptop, stove and other electrical devices in Canary Islands

I have a friend who has moved to the Canary Islands (Spain) for a while. She has told me that there is a buzzing that she feels when she touches many of the electrical devices. I noted something ...
3
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3answers
29k views

No Ground Wires - Can I connect a wire to the metal box for ground?

I want to install new z-wave light switches that require a ground, but it appears that none of the electrical boxes in my house have ground wires and the previous light switches didn't use a ground. ...
9
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2answers
3k views

Add grounding to a 9th floor apartment in country with no electric code at all

I live in a 9th floor 1940s-era apartment in a country with no electrical code and no professional licensing for electricians. My 'electrician,' such as he is, is a security guard who does wiring on ...
1
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4answers
1k views

What are the risks of sending low-current neutral through the ground wire?

I have an existing switch that controls an outlet. I'd like to replace it with a smart-home switch, which requires a neutral wire to power the switch itself. However, there is no neutral wire at the ...
2
votes
1answer
73 views

House and shop on separate meters, will water line between the 2 be a problem?

Since my utility pole is halfway between my house and pole building (shop), there is a meter at each service entry. My (house and shop) panels are grounded properly with ground rods and subpanels are ...
0
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1answer
176 views

Replacing light switch with dimmer - can't identify wire colours; no ground

I'm trying to do a straight replacement of a single pole light switch from a regular rocker switch to a dimmer. I pulled the old switch out of the box and found the following: two wires coming out ...
1
vote
2answers
287 views

Electrical wiring/grounding - continuity via metal junction box?

Question about grounding in a metal junction box. I have a 4x4 steel junction box, with 4 cables coming into it. 1 cable comes in from the main panel, 3 separate cables go out to 3 separate ...
2
votes
1answer
958 views

Generator RCD trips after startup

We currently have a renewable power system (solar, hydro and wind sources charging a 48v DC battery bank) connected to an inverter, which in turn supplies 230V power to a house. Due to the lack of ...
10
votes
2answers
2k views

Had ground rod connection added to my electric panel, should old ground to copper water pipe be disconnected?

My 1970 house with slab foundation originally had a connection to the copper water line as the only ground. I had a pair of ground rods 6' 6" apart added and would like to disconnect the ground to the ...
0
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0answers
79 views

Chandelier wiring

I'm building a hanging light wither with multiple hanging bulbs. Basically, I'm wrapping and hanging 10 medium base , cloth cords around a 6x6x6 beam. On top of the beam I have them connecting to two ...
0
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3answers
43 views

verify if the Ground cable is connected to Neutral cable

I want to verify if electricity outlet is grounded. For this I did a test using a bulb connecting it to Phase and Neutral and it lit (to verify if bulb works). Then connected with Phase and Ground and ...
1
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2answers
226 views

Confusing result on three-light outlet tester

I have a switched outlet which, when turned on, reads as correctly wired on one of the three-light plug-in testers. When turned off, however, I get it weakly lighting as "hot and ground reversed". I ...
1
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1answer
2k views

How can I tell if an appliance is grounded?

We're doing some kitchen remodeling in our 100-year-old home and came across some very sketchy wiring hidden in the soffit. There is never any current running through the junction, and because there ...
2
votes
2answers
247 views

Is my rental house safe even if the electrical is not grounded at all?

Just found out when the electrician came today that the entire house I am renting is not grounded. I really like this place and real estate here is a nightmare. But, we have some iridescent lights ...
0
votes
2answers
3k views

Is this neutral-ground bus bar configuration correct?

Looking inside the electrical panel in the house I bought, I was surprised to see the neutral bus bar crowded right up next to the ground bus bar, so much so that it seems the ground bus bar is ...
1
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2answers
75 views

Replacing switches and outlets

We painted our first floor and the outlets are all brown so I wanted to replace them and the switches with white ones. In doing so I was taking a ground wire off the old outlet and it snapped off of ...
0
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0answers
102 views

Do I need a permit to route ground wire through the walls to outlet?

I have an ungrounded 2-prong outlet I'd like to upgrade to a 3 prong with proper grounding. I'm in GA if region matters. If I bought a spool of the correct gauge solid copper wire, either bare wire ...
1
vote
2answers
166 views

One hand in the sink and one hand on the stove, I feel a tingle. How dangerous and how to fix? (Not my home)

I was staying with a friend recently and after cooking dinner I was washing up. I had water running in the sink, and one hand in the water rinsing a glass. With my other hand I reached to grab a ...
5
votes
2answers
1k views

Voltage increase when connecting a large load to household circuit

So in the place I'm currently staying, they use an inline hot water heater1. This is a ~5500W, 50A beast2 that replaces the shower head and heats up the water as it comes out. Notably, even 5500W isn'...
1
vote
1answer
431 views

Subpanel or not? Neutral and ground bonded?

How do I fix the AC unit to be connected properly to its circuit? How should the AC Unit/Garage/Subpanel be setup? Maybe I can separate the neutral and ground, then ground by connecting to the garage ...
0
votes
0answers
841 views

Voltage detected when separate breaker is shut off

I just moved into a new home. The living room has a covered up switch and a covered up receptacle nearby. Since there is no ceiling light, I presume this used to be a switch-controlled receptacle. It ...
0
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0answers
187 views

A room with no grounding

I entered into a 32-years-old apartment. I checked all sockets with a super-tester. All of them are OK, except two sockets in a single room, where the super-tester shows "no grounding". I talked ...
0
votes
1answer
190 views

Trying to install Cooper surface LED down light to ceiling but don't see a ground wire

I'm trying to install a Cooper LED down light to a pre-existing ceiling metal electric box that has been un-used. I know to turn off electricity at the breaker and that white wire from light ...
0
votes
2answers
718 views

Can I ground my new exhaust fan to the metal box where there is no grounded conductor?

Can I add a green ground screen to my exhaust fan's housing (metal) and connect the green ground wire to it? There is no ground wire in the old supply wiring.
1
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0answers
91 views

Power on disconnected ground wire

Last week I've put lights in the garden. There was already a wire coming out from a switch in the house so it was an easy job. Since there is a door at the other end of the garden I though it would be ...
1
vote
3answers
158 views

Are these my ground wires?

So I'm replacing a ceiling fixture and my new fixture has a ground wire but the old one didn't. My outlet box has two places where wires come in - one with a black, white, and bare and the other with ...
0
votes
2answers
116 views

Grounding of an old house

I am replacing the wiring of an old house( partially burned),some of the 220v appliances such the stove and the clothes dryer have only 3 wires( black, red and white), I think (not sure) the house is ...
0
votes
1answer
127 views

Receving 120 and 220 volt readings when testing a home outlet

I recently redid a room in my house (older home built in the 60's i believe). I decided to replace the outlets as well as they where loose and wouldn't hold plugs very well. When i pulled a few of the ...
3
votes
2answers
445 views

How does a water meter affect the continuity of a grounding electrode system when a jumper is present?

250.53(D)(1) Continuity. Continuity of the grounding path or the bonding connection to interior piping shall not rely on water meters or filtering devices and similar equipment. 250.68(C) ...
0
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1answer
419 views

Are ungrounded three-way switches dangerous?

I have 3-Way Switch 1 and 3-Way Switch 2 going to a light / ceiling fan. Older house. I replaced the old switches and the light works when I wire them as below, but I'm worried about the safety: ...
1
vote
1answer
2k views

Ground wires crimped in copper sleeves in switch box?

I had to move a two-gang switch box to a new location on my wall. This meant disassembling everything, moving the box, and reassembling it as I found it. The only thing that seems a bit sketchy is ...
4
votes
1answer
507 views

Running a jumper ground wire from panel to non grounded outlet

I opened up my panel and ran a green wire for ground (14 solid awg) from the grounding bar up through the floor into my office in order to ground an existing outlet. I have also done some grounding ...
2
votes
1answer
52 views

Grounding a 2 gang metal box in a wet area

In my pool area, I have a metal box that has 2 switches (spa air and pool light). Each switch has a green screw and the box itself has 2 green screws. There is also ground coming into the box. How are ...
1
vote
0answers
1k views

Could a loose ground wire cause an AFCI breaker to trip every 3-4 days?

I have a circuit connected to an AFCI breaker circuit breaker, which is running into our upstairs bonus room as well as upstairs guest room area. I changed out an outlet in one of the boxes, and ...
0
votes
2answers
144 views

Watt's the best way to run a new ground to my garage?

To keep this concise, here are the facts: This is an old house, with a lot of 2-prong outlets. The garage is fed off a 20A breaker (which is not grounded). I'm finishing the garage. I don't plan on ...
0
votes
1answer
126 views

USA outlet states not grounded from surge protector for all outlets in only 1 room in my house

I have 1 room that will be my theater room in my house, and for all the outlets in this room, the grounded light on multiple surge protectors doesn't light up. If i move those surge protectors to any ...
0
votes
2answers
885 views

How to test grounding in AC outlets?

How I can test that the ground cable of my AC power outlet is really grounded / correctly grounded ? Is a quick test that I can do or an instrument that does just that ? Also, how is grounding ...
2
votes
1answer
718 views

Replacing subpanel in detached building - yet another ground/neutral question

Here's the situation. I've added on to my detached shop/garage and need to upgrade the very small subpanel. The existing garage pre-dates the 2008 NEC by at least a decade, and is supplied by a 3 ...
1
vote
3answers
9k views

Existing 3 wire service feed to sub panel: bonding grounded neutral and ground bars?

I know variations of this question have been asked (the closest I could find is here), but I'm still confused. @Tester101 explained if the existing feed to the subpanel is 3 wire with a grounded ...
-1
votes
3answers
9k views

Can I run a sub-panel with only 3 conductors?

I am going to be adding a 3-wire fed subpanel to a dwelling. My understanding of the plan of attack is attached below (Please forgive my crappy, minimalistic MS-Paint schematics). As you'll notice, ...
0
votes
1answer
416 views

Do I need a ground for a 2-wire BX cable to a stove?

I am installing a new electric stove in a 20 year old condo. The existing BX cable has only 2 wires and both are hot legs. Do I need a ground wire or can I use the BX armor as the ground??
2
votes
1answer
85 views

Ground to neutral bus/connector on receptacle

I'm replacing an old/aged receptacle. Incoming hot wired to hot on receptacle. Neutral had been previously connected but snipped off and wire is loose in box (copper end more or less insulated). ...
0
votes
1answer
458 views

grounding homemade light fixture

I am making a light fixture with iron plumbing pipe and 18-2 lamp wire (yeah, I'm one of those people). I just want to clarify a couple of things - with the 2-strand lamp wire, the one with the ridge ...
1
vote
1answer
1k views

Why does my Dewalt power drill only have a 2 prong plug? [duplicate]

Why does my Dewalt power drill only have a 2 pin plug rather than a 3 pin with a ground?
2
votes
1answer
13k views

Main service electric panel has no neutral wire - both neutral and ground wires on same bar - sub panel question

My main service panel is 200 amps and has only 2 black wires coming in, there is no neutral wire like I was told is commonly how it should be. All neutral and ground wires for the individual circuits ...
0
votes
1answer
85 views

main breaker panel to sub panel

The main breaker panel has the grounds and neutral hooked together and has bonding screw installed. Where do I put the ground wire for the sub panel? Do I put it on the neutral bare where the white ...
0
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3answers
292 views

Can I safely create another 120V outlet using the fourth neutral wire from a 4 wire 240V line?

I recently just ran a 4 conductor 240 volt line out to my shed. I chose to run the extra conductor just in case, but I do not currently need it for my application. My question is, can I add a 120V ...
0
votes
2answers
1k views

Grounding an industrial pipe fitting lamp, which wire to use?

I'm working on creating an industrial lamp using black metal pipe fittings. Since this pipe is all metal it should be properly grounded. I'm looking around for 16/3 or 18/3 lamp cord, but finding it ...
3
votes
2answers
107 views

120V measured between different outlet grounds

I'm experiencing some electrical issues with the apartment I'm subletting. While connecting up a projector/speaker setup using outlets from different sides of the room, we discovered (through means of ...
2
votes
2answers
2k views

Should outdoor deck gazebos or grills be grounded?

We recently put up a put up a gazebo on the deck of our condo unit to provide some much needed shade. The gazebo is 10'x12' and the deck is 12'x16'. The frame is light gauge hollow steel thats powder-...