Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

0
votes
1answer
56 views

Electrical Bonding for an exterior building

I have to upgrade the service I have for an exterior building. The wiring follows the old code, and I'll need a permit to do it. So I am going to have to update the service and everything to the ...
1
vote
0answers
38 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
1answer
34 views

How do I connect the ground wires to the new light fixture?

Took out old fluorescent fixture and putting in new LED one. There are 2 switches for this fixture. Not sure what’s going on with the 3 ground wires. I’m not an electrician so dumb it down please.😊
2
votes
0answers
44 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
2answers
75 views

Grounding subpanel

I have a simple question, that I believe I already know the answer to, but just need confirmation before moving on. I had an electrician install a 100 amp subpanel installed on a newly built ...
2
votes
1answer
52 views

Grounding a subpanel using existing wiring

I had a 60 amp breaker that was connected to an oven in the kitchen. Since this is no longer needed, I'm trying to re-purpose this #6 wire to connect to a new Electric water heater I'm putting in the ...
0
votes
1answer
40 views

What type and gauge ground wire do I need when using 1/0 hot and neutral wires

I have a 260 ft run from my main 225A panel to a 100A subpanel in a steel shop out in my yard. I have a #4 bare copper wire grounded to the rebar in the foundation of the shop. Not knowing what I ...
6
votes
4answers
1k views

Can you run a ground wire from stove directly to ground pole in the ground [duplicate]

Directly to ground pole outside drove into ground
1
vote
3answers
75 views

Bridging Neutral and ground in a Light Switch

I changed my bathroom light switch for a Occupancy Sensor Switch but it would not turn off. Since the package said Ground Wire Required I figured it was a ground issue. The location has wiring from ...
1
vote
2answers
67 views

Would connecting an ungrounded cable to a new grounded cable in a box violate code?

A wire in my garage got damaged. Breaker is off now. The wire feeds the stove on the other side of a split level home. It is an old cloth covered wire, with no ground. Red, white, and black wires only....
2
votes
2answers
66 views

Grounding a switch that has no ground screw or wire

I have a timer switch (see photo 1) that has No Grounding Screw and ** No Grounding Wire** protruding from it. It is to be installed into a plastic gang box and replace a switch which is currently ...
0
votes
1answer
58 views

Adding Ground Wire to Existing NEMA 10-30 socket

I have a question about changing my 10-30 wall outlet to 14-30 for charging my EV. I thought it was a simple trip to Home Depot but it seems I may be not code compliant. I bought a Level 2, 20 amp ...
0
votes
2answers
102 views

Can I strip a neutral wire and use it to pigtail ground wires?

I need to ground outlets in my house and need to pigtail the ground wires. Just wondering if I can salvage the old neutral wires, strip them, and use them to pigtail to the outlet instead of cutting ...
0
votes
2answers
67 views

EMT Grounding requirements

I'am running 2" EMT from an outside enclosure through the exterior wall into a switch room that is being attached with beam clamps, The EMT is carrying a Fiber optic cable feed to the switch room that ...
3
votes
6answers
214 views

Why is the neutral tied to ground in my home's electrical panel? [duplicate]

What keeps the Electric from shorting to ground? On my electric panel the Neutral is tied to the ground. The ground is a bare copper wire run back to my water main. a. Electricity chooses the path ...
2
votes
3answers
168 views

Why won't my furnace complete the startup sequence when powered by a portable generator?

We recently had a power outage that lasted several days and the house was down to 41 degrees and expected power restore was several days in the future. I purchased a 3500 watt (5250 starting watts) ...
1
vote
2answers
63 views

Does a non grounded GFCI meet code?

Background So I live in Michigan (which of course affects code) and I have a bunch of two prong outlets in a house that I own. If I want to convert these to be 3 prong outlets is it still up to code ...
0
votes
1answer
36 views

Dangers of connecting Neutral to case of blower?

(Not an Electrician) I have a 220V air handler (not part of the HVAC system its for a homemade wind tunnel) that I need to get power to. There is an old dryer receptacle (10-30R) in the basement that ...
0
votes
3answers
64 views

Confusion while diagnosing an open ground

I have an outlet tester and it says the outlet in my bathroom has an open ground and I'm trying to see if I can fix this by replacing the receptacle or if the problem is elsewhere. With a voltage ...
0
votes
0answers
55 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” ...
1
vote
1answer
50 views

Does the UFER Ground require to be visible?

Is there something on the NEC code that states the UFER ground needs to be permanently visible? I had my rough in electrical inspection the other day. He stated that per NEC 250.64(E) (1), I have to ...
1
vote
2answers
56 views

Dryer connection changes from 10-3 with ground to 10-3 without ground

The previous homeowner did some electrical work to upgrade the dryer outlet to a 4-prong receptacle along with new 10-3 wiring. It was all brand new and looked copacetic. I'm thinking of moving the ...
0
votes
1answer
118 views

Grounding Wire to copper pipe for cable

I'm working on renovating my basement, but first am replacing all of my existing copper pipes with modern CPVC to eliminate the constant leak headache since we are on a well. Last night I found this ...
1
vote
3answers
66 views

What tests can I perform to figure out if a wire is my Grounding Electrode Conductor?

As part of some investigation into the systems of the house I live in, I was looking at the grounding and bonding wiring for the house, as most of it is accessible from the basement utility room. In ...
0
votes
1answer
28 views

How to add grounded junction boxes when installing recessed lighting?

I'm interested in adding recessed lighting in my basement where there are only two flush mount fluorescent fixtures, so I'd be adding 8 or 10 additional fixtures. My home has no dedicated ground wire, ...
2
votes
2answers
51 views

If my heat pump does not have a neutral, do I still need a neutral wire?

I had a friend wire 10-3 line for a new heat pump. He connected the red and black conductor wires in the house to the 2-pole 60 amp breaker and the neutral white to the neutral bus bar. The outdoor ...
1
vote
2answers
54 views

Shared ground for 3 circuits

My septic system requires 3 circuits. A 10Amp & 2 20Amps. Using schedule 40 conduit in a 80ft run underground to the 3 pole emergency service disconnect. Can these three circuits share a ground? ...
0
votes
0answers
26 views

sub panel ground

I have a detached garage with a sub panel. upon inspection I do not see a ground from the main panel and all of the grounds and neutrals in the sub are connected to the same block. I am replacing the ...
0
votes
1answer
43 views

How to add grounds to a 120 amp panel and grounds electrical outlets

I'm buying an older home. The inspection showed no ground on the panel and no ground on some outlets. I'm assuming the outlets are near water, sinks, etc, that need the reset protection. I currently ...
1
vote
0answers
45 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 ...
0
votes
1answer
95 views

Why is neutral wired to ground at this switch?

I was looking to add an outlet near my light switch in the garage. When I opened the box for the switch I noticed that the neutral is wired to the ground. In the picture of the switch, the top wire ...
2
votes
2answers
85 views

Does the ground wire for my pool connect to the pumps?

I am in the midst of a new gunite in-ground pool install. I have the electrical background to tackle this job but I want to know I have it right, particularly around the bonding and grounding. I got ...
-5
votes
1answer
100 views

Is it possible to charge a battery from a live with without creating a second ground? [closed]

This came about out of a conversation with a friend and we were wondering if it was theoretically possible to power a device with a hot wire and have that device's neutral/ground be attached back to ...
0
votes
1answer
58 views

Is my ground correct at my subpanel?

I have a subpanel at my garage. It has 2 hots, one neutral and one ground from the service panel. The neutral and ground in the subpanel are not bonded. All the outlets including GFCIs all work ...
1
vote
1answer
39 views

Intersystem grounding bus ran out of terminals; now what?

My intersystem grounding terminal bus is out of available terminals, and I have two additional communication wires to ground to it. Does NEC allow supplementary bus bars? NEC 250.94 seems to imply no, ...
0
votes
1answer
71 views

Grounding a 3-wire sub-panel in attic

Early 1960's home. 200-amp main service panel on first floor. 3-wire (L-L-N) feeder to 100-amp sub-panel in the second floor attic, about 25-30 feet from the main service panel. Neutral and ground ...
0
votes
1answer
137 views

Does a sub-panel in an outbuilding require a ground wire or rod? [duplicate]

My main elect panel in the house has a common neutral/ground bar and not separate bars. If I run from this panel to a sub panel in a detached pole barn and attach the two hots for 240V and one ...
1
vote
1answer
39 views

Does a ground need to be install in a 2' x 4' outside junction box?

i have a bunch of outdoors 2' x 4' open bottom concrete junction boxes. the question is, does each box need to have a ground rod installed and bonded to the ground wire? if so can someone please point ...
0
votes
0answers
40 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. ...
1
vote
1answer
175 views

Trying to install Kasa smart switch but having trouble with ground wire

I started to install my KASA smart switch but when I opened the unit I wasn't able to find a ground wire. I currently have two black wires (one stabbed into the switch and the other is wrapped around ...
3
votes
3answers
164 views

help me interpret the results of an outlet tester on some GFCI receptacles

I'm trying to figure out what might be wrong with some exterior GFCI receptacles that I have. The problem is that this is an old house, and I'm not really sure what is happening between the ...
0
votes
1answer
54 views

Are speaker wire output negative posts on receiver common-grounded? [closed]

I am buying a subwoofer (powered Sunfire HRS 12) that has high level inputs (bare speaker wire) and it says that it has it's negative posts joined (common-grounded) and that my receiver or amp also ...
1
vote
2answers
54 views

Do I need to install a local ground point for a secondary consumer unit in my shed?

I've just installed outdoor sockets on the side of my brick shed, where previously we just had a double socket inside the shed itself. The original socket in the shed is on a spur from the ring main ...
3
votes
1answer
427 views

What is the difference between a coaxial grounding block, an antenna discharge unit, and lightning arrestor

I've been reading about grounding outdoor TV antennas but these terms seem to be used interchangeably by various articles on the internet. For example, this article seems to make a distinction ...
1
vote
2answers
98 views

Grounding Rod for Residential application

I currently live in Florida, where the soil is basically sand and clay. My question is: how should my grounding rod for my house be installed? I've managed to dig up the grounding rod that was ...
2
votes
1answer
77 views

Grounding to the box and 3 Prong Receptacles

Recently bought a flip house. The flippers replaced every two prong receptacle with a three prong and a bootleg ground. In the process of undoing that unsafe practice, I've discovered that almost all ...
1
vote
3answers
143 views

How to mark an outlet as ungrounded

I'll be replacing my ungrounded three-prong outlets with tamper-proof GFCI outlets in my home in the USA. Maybe I'm overthinking this, but is there a way to 'universally' mark the outlets as ...
2
votes
2answers
513 views

Adding a ground wire to old 2 wire wiring before extending to grounded wiring.

I am remodeling a house and the partially unfinished attic has old ungrounded, 2 wire wiring. There are 2 circuits. There is a finished bedroom with one circuit on 3 walls, and a second on the 4th ...
1
vote
2answers
689 views

200amps service - ground rods instead of pipe connection

I upgraded my main circuit breaker today from 150amps to 200amps. See my previous posts here on the same project: Is RC2040M150CH MSP upgradable to 200amps main circuit breaker Neutral on main ...
3
votes
2answers
252 views

How can I connect a new ground rod?

Illinois house, built 1963. Not sure if there is a ground rod or just the water pipes used for ground. Want to put in another/first rod. Can I connect it to the clamp on the electrical meter housing ...