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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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1answer
29 views

Grounding light switch to electrical box?

I've been replacing a few light switch in the house. Ran into a small snag. Old house, so there isn't a ground wire in the box for the switch, just the line and load wires. I've connected the new ...
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1answer
18 views

Installing a new smart switch into box, wanting to double check plan (primarily with regards to ground wires)

I'm looking to install a new smart switch into a 3 gang box. The current box has 3 toggle switches, each of which is without connection to a ground wire. The box itself has 5 sets of wires coming into ...
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1answer
46 views

How do I connect light fixture’s ground to supply wires?

Location: US While not exactly a novice in regards to electrical, I’m a little confused here. Replacing ceiling fan+light combo controlled by two switches with light fixture (removing one switch/...
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1answer
992 views

How to electrically ground a gas furnace connected with an armoured cable

My gas furnace will not turn on. I verified 120V where the armoured cable enters the furance, so I was going to continue testing for voltage before and after the transformer (with the door safety ...
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4answers
160 views

Can I connect the ground pin of the wall socket to neutral?

I have leaking currents issues in my apartment. There are some appliances in the apartment that don't have a problem with a wall socket that doesn't have a ground; like, TV, mobile charger, laptop ...
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1answer
69 views

Is there a Grounding Electrode that can be buried less than 18"?

A house that is being constructed is being built on ground that is only 18" deep before it hits bedrock. The rebar can't be used as the grounding electrode because there is a vapor barrier below the ...
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1answer
99 views

How critical is it to use the correct wire colors within the same electrical outlet?

I am replacing "razor only" receptacles to GFCI. The outlet contains a LINE cable (black, white, bare copper). The previous receptacle of course did not use three prongs, so the ground was just ...
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3answers
917 views

grounded outlets and code compliance

I live in a residential unit in Oakland, CA and I am curious what the rules are about grounded outlets. Is grounded power required? My outlets are 3-prong and an outlet tester reads that there is ...
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2answers
74 views

Do branch circuits sharing conduit with sub-panel feeder wires require separate grounding?

I have installed a 75 amp sub panel with three #6THHN and a #8 ground from the main. I need to move two branch circuits from main to sub since I do not have space in the 200amp main for the sub panel ...
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1answer
103 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 ...
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2answers
47 views

Ground Wires in Bathroom Vanity Light

I am replacing a vanity light in my condo. I removed the old fixture, which was a cheap long shallow box with five round bulbs. Lo and behold, there was no junction box behind the fixture, as all ...
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2answers
94 views

What is the correct way to attach two grounding sources to my electrical panel?

I replaced my existing electrical panel with this electrical panel in order to have more available slots to redo my kitchen. I have one 6# copper wire ran & attached the water main and one 6# ...
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1answer
73 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 ...
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2answers
58 views

Ground Bus Bar on Sub Panel

I was working on a house with a sub panel for a shed/workshop. The sub panel was fed off the house main panel via 2pole 50A breaker. The sub was a load center type with no main breaker. The neutral ...
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2answers
45 views

Can a grounding conductor from equipment terminate in a metal box grounded via EMT?

I have EMT leading to a metal junction box, and from that box goes plastic liquid tight to some equipment. Currently I have a ground conductor running all the way back to the panel, but I'm wondering ...
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3answers
3k views

Can ground attached to neutral fool a receptacle tester?

I'm using a basic outlet tester like the one from picture below. Let's say someone wired the ground to the neutral in some outlet, to provide a fake ground. What would the tester report? Would it be "...
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0answers
63 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 ...
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56 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.
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1answer
72 views

Grounding for Outdoor Outlet

I have an outdoor outlet about 60' from my house. It is properly wired using an underground cable with ground. It is in a plastic box with plastic conduit protecting the stub-up. Recently a tree ...
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2answers
154 views

My outlets have ground wires twisted together and bonded to the metal box, but not the outlet. Is this ok?

In my home, I've been replacing the outlets. The old ones are so loose that things don't stay plugged in! While doing this, I noticed that the ground wire(s) in every outlet are twisted together and ...
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3answers
70 views

Grounding Requirements for same structure subpanel

I understand that unless a 250.32(B) (NEC 2014) applies, a separate ground wire should run from the main to a subpanel where the service is in a separate structure. Still confused however about NEC ...
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2answers
93 views

A shorted to ground compressor can't be a pre-existing condition can it?

Our home warranty company is trying to deny our a/c claim because the technician they sent said, our compressor was 'shorted to ground.' They say that this was a pre-existing condition and that ...
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3answers
121 views

Can you attach more than one wire in a given hole on a bus in an electrical panel?

Is it permissible to attach more than one neutral or ground wire to any terminal screw on the service panel bus? A home inspector says this is not allowed. THAT DOESN'T SEEM RIGHT, because all of ...
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1answer
60 views

Can I use the grounding rods of a main panel as the grounding rods for my sub panel

I ran 3 #6 B/R/W and 1 #8 Grn from my main panel through 1" sch 40 PVC to my garage and will be installing a 100A sub panel with separate ground and neutral blocks. I understand that since it is a ...
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1answer
97 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. ...
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1answer
125 views

Can I use the same junction box for two appliances?

Complete noob here. I'm finishing building my kitchen and the last part - the wiring of electrical oven and glass cooking plates, is presenting me with some challenges. I am located in Germany. ...
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1answer
66 views

Do lights in a circuit have to be grounded for the whole circuit to be grounded?

I have a circuit in my old house (built 1918), it’s gone through many remodels during its lifespan and multiple owners. This one circuit has no grounded outlets, so I had a look behind the outlet to ...
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1answer
470 views

Strange outlet behavior

I am going to be updating electrical outlets in my house, so today I checked them all with the 3 lamp tester. Only a few are properly grounded and others not. One outlet is showing strange behavior. ...
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1answer
89 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 ...
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1answer
130 views

Can I connect the ground wire for my dryer to a different hole in the chassis?

I am installing a new GE electric dryer (model GTD42EASJ2WW) and attempting to connect the 4-wire cord. The last step is to connect the green ground wire with a supplied ground screw. The hole that ...
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0answers
61 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 ...
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1answer
88 views

What should happen with plumbing ground connections when converting to Pex?

My house is being re-piped by replacing all of the copper with PEX starting at the water service entrance. I'm on a well which is 150' from the house and the service line is CPVC. Currently, there is ...
21
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3answers
6k views

Why don't I have ground wiring on any of my outlets?

My house in California was built in 1989 (I believe) And in the last 5 years I've replaced at least 20 outlets myself (successfully), and noticed there were never any ground wires to connect to the ...
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1answer
40 views

Grounded outlet with load for ungrounded outlet

Moved into a place, nearly every outlet is ungrounded with the exception of a couple GFCI in the kitchen and bath. Needed three prong for the fridge (and really didn't want the new appliance ...
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1answer
42 views

grounding wire extension

I have an above ground pool which was grounded for safety. I had to buy a new pump (motor) and unfortunately the ground wire was too short to reach the pump. I had to move the filter and pump to reach ...
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0answers
68 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 ...
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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 ...
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2answers
68 views

Can I ground a ceiling fan to another electrical ceiling box nearby?

I want to install a ceiling fan where a ceiling light currently exists in my garage. The box for the current light has only two wires coming in however: a black & a white (no ground - looks like ...
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4answers
6k views

Dimmer switch not connected to ground

I know just the basics of electricity and am trying to replace an older dimmer switch that broke with a new very similar switch. The old switch is not connected to ground. The new switch has the ...
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0answers
37 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 ...
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1answer
81 views

60 amp sub panel, 100 ft away from main panel. Grounding rod or not?

Adding a 60amp sub panel (4breakers) on the 2nd floor for a dehumidification system and some misc. Running 100 feet of 6/3 wire. I am assuming that I can use the ground wire in the 6/3 from that ...
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1answer
130 views

Should I connect the ground wire to the panel when the conduit is grounded?

I ran 10/3 BX cable to my attached garage for an outlet. The BX has its own green wire for grounding, but since my home is grounded all through the conduit/outlet boxes and is bonded to the neutral in ...
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0answers
36 views

Is it legal to add a ground wire to a dryer circuit? [duplicate]

It would be much easier to put a ground in outside the dryer outlet than doing a homerun to the electrical panel assuming you pull both the existing wiring and the ground to the same surface mount 30A ...
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1answer
69 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 ...
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0answers
55 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 (...
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1answer
61 views

Bonding vs grounding a main and sub panel

I am in the process of building a new home and of course I'm saving some money by doing all the wiring myself. I do have a decent bit of experience with electrical work, but the main panel is a little ...
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1answer
60 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.😊
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0answers
65 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 ...
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2answers
123 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 ...
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1answer
58 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 ...