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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1answer
858 views

Broken ground wire in receptacle box

I’m pretty new to home DIY and had to replace a few outlets this weekend. On the last one the ground wire snapped as soon as I unscrewed the old outlet. It looks like the wire was clamped to the other ...
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202 views

Is the advice “don't operate light switches barefoot” outdated?

I was taught in my young age (1980s-1990s) not to operate light switches (or anything electrical) barefoot. Is this advice still relevant in 2021 (in a modern house in Western Europe with grounding, ...
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On a side by side house that has two meters and two separate main panels. How many ground rods are required

How many ground rods are required for a side by side house that has two meters and two separate main panels.
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54 views

Do I need a ground rod in addition to a pipe? Subpanel in separate structure

The scenario: detached garage with a subpanel supplied by a 30a 240v feeder from the house, with two hots, neutral, and EGC. There is also an Ethernet cable from the house to the garage, carrying a ...
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1answer
66 views

Can I bond my ground to my gas pipes?

Do I have to install the grounding electrode all the way to the service section, or can I bond the gas pipe to building steel which is continuous through out bldg and then bond the steel to the ...
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119 views

Where does ground of wall socket actually go?

Where does ground of wall socket actually go? Like maybe a nail in soil beneath building? Or maybe high voltage power grid utility has it's own ground, which connects to a power plant, and our ...
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2answers
80 views

When installing a 14-30R dryer receptacle, do I need an additional ground connection to the box?

Thanks to Stackexchange's Hot Network Questions, I found out that my 3-prong dryer outlet was a safety hazard and I'm replacing it with a 4-conductor 14-30R receptacle and matching cord. I've replaced ...
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34 views

No Neutral Wire to Install Smart 3 Way Dimmer

I am replacing a 3 Way switch (master) and remote dimmer with Decora Smart devices. The master has the correct wires to install the smart 3-way dimmer master. The remote box had a dimmer device with ...
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1answer
54 views

Connecting Sub Ground to Main

A year and half ago I set up my sub panel around the back side of my home for pool equipment and further outlets and patio lighting/fans. I set 3x #3 copper THHN in a 1.25 ENT in the ground from my ...
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2answers
43 views

Where is the grounding in this fixture box

We are replacing a light fixture and I removed the old one and am having trouble understanding the grounding here. There are 3 twisted together copper wires up there that you can see in the photo. Are ...
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43 views

How to tell whether metal junction box is properly grounded?

I have a detached garage that is powered by a circuit breaker in the main house’s breaker box, which is properly grounded. The outlets in the garage have metal junction boxes, fed by metal conduit ...
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At a wall socket, is using thin wires at ground pin dangerous?

I paid a hardware shop owner to modify my wall light switch to socket for my washing machine in bathroom. The power in my area right now is 3 phase 220V AC. At first it is a switch. Then we modified ...
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3answers
82 views

Where do I attach the Ground and Neutral inside a sub-panel?

I'm wiring 100 amp subpanel to detached Garage with 2/2/2/4 copper. I'm hoping to replace the subpanel to my detached garage which was previously wired to run on a 40 or 60 amp subpanel with like 6 ...
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56 views

Outlet grounded by conduit - how do I add a second outlet with Romex?

I tested the outlet with an outlet tester which states that it is properly wired. However, I know that conduit is not necessarily always sufficient to provide a proper ground. So I tested the outlet ...
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Can I use a *ground wire only* conduit for copper data cables?

Hypothetical question. I won't self-answer. The purpose is to inform potential answers on another person's question. Suppose I have a shed with a 200A subpanel, with 3-wire feed that was installed ...
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43 views

Bare ground inside conduit? [duplicate]

I'm finishing up the rough in wiring for a kitchen remodel, but I have a situation where I can't run cables through studs for a light switch because there is no wall cavity. I decided to run it strait ...
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4answers
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Buying a home with 2 prong outlets but the bathroom has 3 prong outets

I'm looking at a home for my family and trying to assess the amount of work needed (no home-inspection is present). I saw that most of the electrical ports have 2 prong outlets and am worried that I ...
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2answers
84 views

8 AWG solid EGC in raceway for 100 amp subpanel

I'm adding a 100 amp subpanel to my detached garage and have a question about the EGC I've already pulled through the underground LFNC-B raceway. Taking the advice from a similar post on this forum, I ...
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3answers
184 views

GFCI outlet on 2-wire ungrounded question

I have some 2-wire ungrounded outlets in a room that I want to put a bunch of electronics and computer. I know I can replace this with a GFCI outlet and label with "No equipment ground". ...
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1answer
44 views

How should I connect the ground wires for my new light fixture? [duplicate]

I have a question about what to do with ground wires. I am installing a new light fixture above my dining room table. Fixture comes with a ground wire obviously. Main electrical wiring has the ...
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40 views

What size wire feeders do I need [duplicate]

I have 100 Amp service. I can't determine the wire size but it appears to be 6/3 feeder's. My furnace is 14000 watts 240V at 60Amp. I have a 980sq ft home with a electric dryer, a refrigerator 20 Amp,...
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1answer
70 views

Light switch not working when grounded

I have a light switch connected to a split outlet (one always hot, other controlled by light switch) that appears not to work when the switch is grounded. To be clear, the switch no longer routes ...
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4answers
434 views

How to attach light with two ground wires to fixture with one ground wire?

I'm trying to replace a ceiling light and I'm unsure of all the connections to make because the light has 4 wires coming from it, but the ceiling only has 3. The ceiling light has black, white, green ...
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2answers
126 views

Doorbell transformer - Installed in panel -doesn't work when green is connected?

Earlier today I replaced my doorbell transformer in preparation to install video doorbells. The old transformer was connected outside the main panel, and only had 2 wires. One to hot, and the other ...
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3answers
75 views

Grounding electrical sub panel in separate structure

It pains me to ask this question when there are so many similar ones out there - but I feel like I’ve read them all and still don’t have a satisfactory understanding of what the correct options are. I ...
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2answers
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Was FMC >6ft Ever an Acceptable Grounding Path?

Wiring routes out of my garage subpanel through exposed flexible metal conduit (FMC) to metal boxes for just about everything. Garage is detached, and 1990's era. The pool equipment, pool lights, and ...
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1answer
58 views

Grounding branch circuits in gutter instead of in panel

Replacing a sub panel (with neutral from main panel and local ground rod). The branch circuits will come in via a Wiegmann gutter above the subpanel. Is there an issue having a grounding bar in the ...
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1answer
76 views

Ground wired to neutral in light switch

I'm a DIYer swapping out existing switches/receptacles for a different color. I ran across a light switch that had ground wired to neutral instead of the ground connection on the switch. This doesn't ...
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0answers
66 views

Electric current shock in Bathroom water tap

I live in india, 1 storeyed apartment with 2 flats on the ground floor and 2 flats on the first floor. It is annexed on the back side with same 2 + 2 model. My Bathroom has a 2000 Watts - 15 Liter ...
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3answers
81 views

Grounded Neutral Voltage Fluctuatons

BACKGROUND: Hi this is in Chicago so we use EMT Conduit as our grounding system and only use an EGC for stoves/dryers/sump pump/ etc... so I was working with my cousin to demo stuff in a basement in a ...
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1answer
43 views

Sharing a Ground Conductor Between Multiple Circuits

I'm thinking about running circuits for lights and an infrared heater to a patio. The heater is a 6000 W unit with two individually controlled tubes – I'm thinking this will start off in 12/2/2 NM-B ...
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1answer
65 views

Question about using a wired power strip to the electrical panel in home

Because I have no wall outlet grounded anywhere in the house, I asked an electrician to help and the solution that didn't involved destroying the walls was to wire a power strip directly into the ...
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3answers
178 views

Is 12 AWG ground wire adequate for a 60 Amp water heater circuit?

A tankless water heater I bought arrived with a pig tail with 3 6 AWG wires. Black, Red, and Yellow with Green stripe ground. The black and red go to a 2 pole 60 amp breaker with the yellow/green ...
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1answer
406 views

Green striped wire placement when changing from 3 prong to 4 on dryer

I recently moved into a new house which accepts a 4 prong dryer cord. My dryer, a Kenmore 110.66922501, is currently wired for 3. As wired for 3 prong, the neutral connection on the dryer has an ...
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3answers
83 views

can i stick 6ga wire directly in earth instead of using grounding rod?

can I stick a 6 or 8 ga copper wire directly into the ground a couple of feet deep then run it into the house to an earthing mat to ground it ?
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2answers
75 views

Can I use an existing Ground Rod for Sub-Panel in Detached Garage (Meter box is using the rod currently)

Two buildings: Home and Detached Garage (circa '04 US). Service comes in through a Meter on the Garage to a PVC conduit into the Main box in the home (Single phase 240V with Neutral). In the main box ...
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1answer
36 views

Grounding question with replacement to ceiling LED

I want to replace my 40 year old spot light cans with LED lighting. My issue: the cans are 6 inch and not very deep. They are bell shaped and lack the tension spring clips which wouldn't work anyway ...
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1answer
83 views

Is this scenario a bootleg ground? Is it safe? options?

I have a shop that has been fed a 3-wire (L1 - L2 - N)service years ago. The ground wires to the outlets are bonded to the neutral wires in the shop's subpanel. There is NO earth ground / ground rod ...
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1answer
48 views

Locating exterior ground rod?

Ground wire is disconnected in the back yard. I’ve dug around about the length of the exposed wire, but for the life of me I cannot find the ground rod. Any tips on how to locate it or should I just ...
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2answers
77 views

Dimmer with ungrounded box

I have a new Legrand dimmer switch. It has a connection for a ground. However the box it needs to go into appears not to be grounded. The dimmer is model LSCL453P. The load is an LED light about 30 ...
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3answers
110 views

Can outlet circuit ground wires be connected to the panel ground wire?

Introduction My house initially had many outlets grounded to the copper plumbing using ground pipe clamps like this one which I know are no longer allowed via code: I have gone through and replaced ...
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3answers
566 views

Installing nema 14-50 with no ground

Good morning, Im in the US and I have a problem that I can't seem to find a straight answer for. I recently bought a new range and the receptacle was a 3 prong but the oven uses a 4 prong cord. I see ...
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1answer
104 views

Does ground bar block my knockouts?

Can I use the knockouts right next to my ground bar, or does it permanently block them? I'm wondering if I am allowed to run conductors across/over the ground bar and if I can put EMT connectors in ...
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1answer
51 views

How should I go about connecting a switch's ground wire to this apparent grouping of ground wires?

We have an old dimmer switch in a two-switch box (next to a regular light bulb) (in California). The old dimmer switch's button no longer works right, so we wanted to replace it with a new one. We got ...
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2answers
58 views

Do I use all grounding screws in a metal box?

I'm wiring a 4-gang, metal box to hold multiple switches. It has 4 grounding screws. Do I need to pigtail around each of the box's grounding screws? My plan is to splice all the grounds together with ...
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0answers
64 views

Electrical voltage is between box and wire, not between hot and neutral. Not OK?

I live in a house that has significant issues. Here's the current one I'm wondering about. This electrical outlet box seems to be "live". There is 120v voltage running between one of the ...
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1answer
46 views

What do I do with two prong plugs in my house, when my fuse box is grounded?

To whom it may concern, I just bought a house that was built in 1958. When the house inspector went through the house, he noted that our main fuse box was grounded at the breaker, and then randomly ...
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0answers
44 views

Ground/outlet tester shows bad ground for entire house after switching single outlet

I just changed out a receptacle. Prior to changing I tested the original receptacle with a ground & outlet tester. It showed everything to be wired correctly (green light). After installing the ...
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1answer
104 views

grounding outlets and old wiring

Background: I recently moved into a house in the western US built in the late 1950's. Most of the receptacles are two prong and don't have any ground wire running to them. I would like to have three-...
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3answers
53 views

New GFCI to replace one that was in the subpanel of a hot tub

I have a dedicated 50 amp 240 v circuit to a hot tub. Had it over 15 yrs no problems. Recently the GFCI that was in the sub panel would buzz and then trip or sometimes work just fine after resetting....

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