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.

52 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2
votes
0answers
51 views

How to reroute grounding system to a grounding rod?

I'm building a ham radio room and need to ground my coaxial cable and antenna. If you are not a radio ham, you might not understand but it does not matter. All the resouces I can find online tells me ...
2
votes
1answer
133 views

Connect two grounding rods

I added an exterior TV antenna and a grounding rod next to it with a 6 gauge copper wire going to both the antenna mast and the ground on the coax coming from the antenna. It is about 15 feet from ...
2
votes
0answers
81 views

Bathtub pump motor - ineffective ground through water pipe?

I opened up the space underneath my bathtub for the first time in this house. The tub is a "spa" style and has a pump motor to circulate water through jets. (I'm in NY / USA). I noticed that the ...
2
votes
0answers
170 views

Wanting to make existing 2-wire 220V outlet a 4-wire one

(Located in the USA) I've inherited a 220V (or 240V?) circuit which is just capped off inside a junction box. It's hooked up to a 30A breaker, and seems fine, except that it's only a 3-wire run--no ...
1
vote
0answers
51 views

Adding ground…“bare armored ground”: suggestions

I have a 1940's house. Modern panel and sub panel feeding cloth clad cable and knob and tube. Very hard to access crawl space or inside wall because wood ship lap over skip sheathing, shingles over ...
1
vote
0answers
67 views

Attaching a ground wire to a prong that plugs into an outlet adapter

The outlet shown in the image below doesn't have a ground wire connecting to its receptacle. A friend of mine is helping me setup a ups that requires ground wire, however what he did was run a ground ...
1
vote
1answer
31 views

Voltage on ground wire of LED light, changes when dimmed?

Why would there be a voltage on the ground wire of an LED light, that varies according to how the dimmer is set? When at full brightness, the ground wire reads ~30VAC, when it is mostly dimmed, it ...
1
vote
1answer
207 views

How urgent is it to resolve two-prong problems?

I have read How do I use three-prong appliances when my outlets are mostly two-prong?. I have recently moved into a house that has some two-prong and some three-prong outlets. The place in the ...
1
vote
1answer
95 views

Grounding metal electrical boxes

I would like confirmation on the following: Is any metal box automatically grounded if it is supplied by an armored cable (without a ground wire) that is properly connected to the box and back to the ...
1
vote
0answers
73 views

Dishwasher chassis outputting an AC voltage

I've recently noticed that touching the metal interior of my dishwasher gives me a slight tingling. I put that (stupidly) to static electricity. For "fun" I then decided to touch a finger on the ...
1
vote
0answers
52 views

Can armored cable cross over a drain pipe?

My electrical system uses the armored cable sheathing as a ground path. I was placing some lines of AC in my walls, and I uncovered a drain pipe in the way. At first, I covered the AC with ...
1
vote
0answers
56 views

How to correctly ground long distance from main disconnect to first panel

I've got a property with an existing very sluggish electrical installation which consists of a service drop at property entrance, no main disconnect and a 130' underground run to the living space (...
1
vote
0answers
47 views

Will improved panel grounding resolve AM radio static?

I live in a manufactured house. I have two electrical panels--one outside on the electrical pole where the electrical meter is at and another one in a utility room in the house. The one on the pole ...
1
vote
0answers
38 views

NEMA 14 with integral JB — how can I ground it to EMT?

There are two general styles of NEMA 14 receptacle in wide use -- one is the conventionally yoked style that is used with a separate junction box in flush mount applications, but can also be used in a ...
1
vote
0answers
101 views

Could a missing ground connection in a light box disable other fixtures?

I replaced an existing outside light fixture with these security lights. I properly connected the wires together (including ground). After installing I was reading the install instructions a bit ...
1
vote
0answers
359 views

Can I ground a new light to an old metal box via a switch yoke?

All of my switches are installed in old metal boxes with no threaded ground screw holes. The boxes are wired using old cloth BX with no ground wire(grounded via casing). Some of the BX wire ...
1
vote
0answers
192 views

Why showing bad ground on my detached garage?

Everything has to be conduit by code. When i use my stop shock tester everything in the house shows no problems which is two wired. However, when those wires run from the panel box to the detached ...
1
vote
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
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 ...
1
vote
1answer
1k views

What should I do with the ground wire on a replacement bathroom fan motor?

I bought a new motor for my bathroom vent fan and it came with a ground wire. The old motor does not have a ground wire, or not that I can see. What should I do with the ground wire?
1
vote
0answers
161 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 ...
1
vote
0answers
216 views

Has this light earthed itself?

After accidentally earthing the live wire going to the outside light whilst putting a faceplate back on (patched up now), the light has stopped working. I've just been out with a multimeter to see if ...
1
vote
1answer
368 views

Anything wrong with this ground wire? Is it supposed to be insulated?

Panel is from the late 1970's. Looks like there was some insulation on the ground wire, but most of it has come off. It's the same way through the crawlspace.
0
votes
1answer
53 views

What should I do with the ground wire from my light fixture when there's no ground in the box?

The ceiling light/fan I want to install has a short GREEN wire. It looks ready to be twisted onto another wire. There is NO ground (bare copper or another green wire) coming out of the ceiling box. ...
0
votes
1answer
62 views

Campground sub panel grounding question

I’m involved in maintaining a small campground. Some areas are served by overhead electric and an underground services. No ground wire was ever ran or pulled from the main breaker panels. Individual ...
0
votes
2answers
62 views

Sub panel grounding conductor “splicing” with main panel grounding conductor at electrode

I've looked through the sections in the Nec on grounding conductors how they can splice and placement and attachment of electrodes . I'm installing a meter socket disconnect combo making my main load ...
0
votes
1answer
44 views

Update on outbuilding grounding requirements

This isn't really a question, rather a correction to something I posted earlier. The main building with the primary service requires it's own grounding system (of course) with the neutral bonded to ...
0
votes
3answers
106 views

How to stop current originating from common ground wire?

A building has all the apartments' electric panels connected to a common ground wire. Theoretical situation: 1. one of the building's electric panels has its differential circuit breaker broken 2. it ...
0
votes
0answers
59 views

How do i ground a new overhead light fixture? I'm replacing a 2 wire fixture with a new 3 wire fixture wich includes a ground wire

How do I ground a new overhead light fixture? I'm replacing a 2 wire fixture with no grounding wire with a new 3 wire fixture which includes a ground wire.
0
votes
1answer
198 views

Oven has 2-prong plug plus earth wire. Socket is modern 3-prong. How to connect?

My 110V toaster oven has a 2-prong cable. Also, the oven's chassis has a screw with a connected green/yellow earth wire, which I want to ground. My wall socket is a modern 3-prong with earth and all. ...
0
votes
0answers
66 views

Electric Shock in Walls and Electrical Equipment

I'm getting a shock when I touch walls, electrical equipment like a water cooler, fridge, etc in my home. I have followed this procedure as I only have a DMM with me. The readings I got after ...
0
votes
0answers
69 views

How can I test which mains wire belongs to neutral and which to ground?

I currently live in Spain, in an old building, where apparently electrical codes don't strictly apply... because not all outlets have ground or, indeed, not all connections are grounded. To make ...
0
votes
0answers
38 views

I have a ground rod but I have no grounds in the house

My panel is connected to the main water intake jumping the meter and I just installed an 8 foot copper ground rod. Even connecting a new breaker with only one outlet attached to it shows that I have ...
0
votes
0answers
61 views

Ground rod driver for very large ground rods?

I have a large Jack/Demolition hammer I use this to pound very large ground rods/stakes into the soil. These rods are those over 1” in diameter. The largest rod driver I can find will fit 1” ...
0
votes
0answers
46 views

Not properly grounded/earthed

I know next to nothing about electricity and wanted to ask for some advice. Apologies for any cross-posting. I moved into a rented house in Spain a few months ago. Turned out it wasn't grounded. ...
0
votes
0answers
52 views

Distance between grounding rods

Here in Hampshire County, WV we are required to have 2 grounding rods. Question #1 How deep do they need to be? #2 This mountain was formed by a rock glacier before I was born. I can drill down 18",...
0
votes
0answers
31 views

water heater circuit requires a ground connection

Purchased a British Standard water heater with 3 supply connections -live, neutral and earth. The circuit design requires a ground. Tried to fix the water heater in Philippines which only has 2 pin ...
0
votes
0answers
69 views

What's the purpose of a wire from stud to outside?

On a couple of my studs there is a small gauge wire that seems to go through the outside wall to the outdoors (into the flue cavity) as shown in the picture. What is its purpose? This is on the wall ...
0
votes
0answers
78 views

What's going on with the electrical wiring (or devices) in this room?

I was soldering components onto a circuit board that was placed on a rubber-like soldering mat on a table. Simultaneously, I was listening to audio from my desktop computer, using wired headphones. ...
0
votes
2answers
742 views

Replacing bathroom exhaust fan without ground

I'm replacing a bathroom exhaust fan. The previous fan is probably about 30 years old and was not grounded. In fact, the wiring in the bathroom does not have ground. The fan will be mounted to a steel ...
0
votes
0answers
536 views

I purchased a Lutron occupancy sensor MS-OPS5MH-WH. I have no ground available.

I purchased a Lutron MS-OPS5MH-Wh. It has 2 black wires one green one blue and one bare. I hooked up the two black wires but do not have a ground (green and bare).. When hooked up the light is on ...
0
votes
0answers
99 views

Grounding of a Metal Roof Vent

My kitchen range hood is vented through the roof. The vent pipe on the roof is made of metal and extends a bit higher than the roof ridge. It is connected via metal ducts to the range hood. The range ...
0
votes
0answers
51 views

Some of our electonics are being fried

Would having the ground from a 277/480 panel hooked up to the ground of a 120/240 panel have the potential of causing problems, such as fried electronics?
0
votes
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
votes
0answers
105 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 ...
0
votes
0answers
916 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
votes
0answers
230 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
0answers
131 views

Should I be worried that my ceiling light has current when turned “off”?

I am based in the UK. I was replacing a ceiling light when I noticed an issue. When I used a voltage screwdriver the live wire in the ceiling pendant was showing a voltage present even when the wall ...
0
votes
0answers
54 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 ...
0
votes
1answer
2k views

Just bought old house, only some plugs are grounded

please help me! I am a first time home buyer and i just bought an older home. I have been researching the web for an answer about grounding. On my first and second floor i have very few grounded ...