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.

Filter by
Sorted by
Tagged with
2
votes
1answer
75 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 ...
2
votes
1answer
993 views

Can I run a new ground wire from junction box in attic down the wall to replace 2 prong outlet

I have an older home where some of the house has updated electrical and some doesn't. In a few rooms I still have several of the 2 prong outlets with no ground wire in the box and I want to replace ...
2
votes
2answers
140 views

Is it proper and/or smart to independently ground an older 3 prong dryer outlet and upgrade it to 4 prong? [duplicate]

Just bought an older home that has a 3 prong dryer outlet. It is right above an unfinished crawl space so it would be easy to run a good grounding cable to a grounding rod and/or an iron water pipe ...
2
votes
2answers
5k views

Is it safe to substitute a 10-gauge wire for ground strap on dryer?

I am backfitting a dryer with a 3-prong plug. The manual says to connect the body to the neutral terminal using a copper ground strap. I don't have a ground strap and none of the stores around carry ...
2
votes
2answers
214 views

What did cable installer use to tap onto my service ground?

I have a somewhat mysterious service ground apparently underneath a concrete entryway. All that is visible now is a heavy gauge bare copper wire coming through the cement. When the cable company ...
2
votes
2answers
8k views

Converting a Samsung Dryer from a 4-prong cord to a 3-prong cord?

I just bought my first home and I need to replace my 4-prong cord on my dryer to a 3-prong. I've removed the four prong and now I see this: I know how to hook up the three prong, I'm just unsure ...
2
votes
2answers
1k views

How can I tell if my two-pronged outlets have ground wires behind them?

I have two-pronged outlets in my apartment. They look like this: Is there a way to check whether they have a ground or not? Some guides talk about use a circuit tester and touching the screw, but I ...
2
votes
1answer
89 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). ...
2
votes
2answers
893 views

Is water pipe grounding achieved thru pipe or thru water?

I've got a 1901 house, with copper (new) piping. Some of the electrical (old knob and tube circuits) are grounded to the water pipes. The copper pipe goes out to my shutoff valve located outside. so ...
2
votes
2answers
40k views

Does an extension cord from 2 to 3 prongs have any benefits?

If you're plugging a device with a 2-prong plug into an extension cord that has 3 prongs on the other end, does that give it the grounding benefit of the third prong?
2
votes
2answers
242 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 ...
2
votes
2answers
3k 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 ...
2
votes
1answer
2k views

Why is it OK to bond the neutral and ground in an appliance?

I am installing a new built-in oven, and while it has both neutral and ground pigtails, the manual states that they are "twisted together." I am interpreting this as "electrically connected." Given ...
2
votes
1answer
295 views

Attaching a grounding pigtail to a junction without a tapped hole?

I'm trying to ground an outlet in my home to the metal of the junction box. I'm using a grounding pigtail of 14AWG wire with a 10/32 terminal attached to one end. Unfortunately it seems the metal ...
2
votes
1answer
200 views

what size ground wire should i buy?

I am trying to connect my house to the current meter pole that is 300 feet away I am going to buy 250kcmil for the load conductors. I know that I can save some money by buying a smaller size ground ...
2
votes
4answers
4k views

How to properly bond metal junction box with 6 AWG conductors

What is the appropriate way to bond a metal junction box containing a receptacle wired with 6 AWG wire? It seems that most metal junction boxes have a 10-32 tapped hole to accept a ground screw but ...
2
votes
3answers
3k views

When are copper pipes a ground?

There is an exposed copper wire attached to the cold-water pipe near the dryer plug in my house. It's not attached to anything and I'm wondering when it would be useful if at all? This wire just ...
2
votes
2answers
147 views

Electric Guitar at an outdoor show - Grounding issues? [closed]

I play electric guitar and today I had an experience where the guitar would give very slight tingling sensations - I wouldn't quite call any of them a bad shock because none of them really hurt badly, ...
2
votes
1answer
116 views

Can I temporarily ground an outlet in my home to use a pressure washer outside it?

Can I temporarily ground an outlet by attaching a wire to its central screw and then to a grounding rod situated outside my house? I want to use an electrical pressure washer, but it requires a ...
2
votes
3answers
2k views

Is it safe to ground/earth an extension cord with the radiator?

I just moved into a dutch student house without any grounded plugs which is quite usual around here. I get the 'Macbook Tingle' after some time, which solved by nudging the Macbook to the Radiator. ...
2
votes
2answers
2k views

How should I connect a grounding wire from a device to this box?

I'm replacing this simple 2-connector light switch with a 4-wire dimmer. The 2 new wires present on the dimmer are neutral and ground, and only neutral has an obvious home. The box has no visible ...
2
votes
2answers
4k views

Japanese Appliance has a Green/Yellow Ground Wire coming out of it, What should I do?

So I recently purchased a Japanese Toiletseat thing (I can't read japanese but I've just been translating little by little), and it has a ground wire (a green/yellow wire) Coming out of the back, ...
2
votes
1answer
62k views

Where do I attach the grounding conductor to my bedroom light fixture?

I have a problem, I broke the center piece that holds the glass part on my light fixture in my room. I purchased a replacement and removed the two screws holding my fixture on to the ceiling. Now I ...
2
votes
2answers
78 views

Does the Long Leg of the Grounding Clip go Inside or Outside of the Electrical Box?

I have a model #GEE-B10-10 Grounding Clip that I'm not sure how to install. Does the long leg go on the outside or on the inside of the electrical box? Long side: Short side:
2
votes
3answers
493 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) ...
2
votes
2answers
810 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
100 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 ...
2
votes
2answers
2k 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 ...
2
votes
2answers
2k views

Grounding sheds and garages

I have a detached garage whose wiring is fed by just two conductors running back to the main panel. There's no ground wire in the feeder and no separate ground rod at the garage. The feeder has only ...
2
votes
4answers
2k views

Main Breaker Gets tripped every 1-2 hours but last longer in the night

Our home is located in India. We have an individual circuit breakers for all the 7 rooms in our home. And wrapping them whole is the main breaker. Earlier there used to be short circuit in certain ...
2
votes
2answers
674 views

Will this particular breaker box allow ground wire to connect at neutral?

House is ran with EMT.. I have two dedicated circuits coming in from outside the house for a swimming pool, with a dedicated ground to the main breaker box. I want to connect to far right bottom ...
2
votes
3answers
6k views

How to check if my house is properly grounded?

I live in an very very old house, recently I purchase a surge protector (APC P5B-GR) and it came with "grounded" light indicator, when I plug the surge protector into my house wall outlet, the ...
2
votes
2answers
250 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 ...
2
votes
1answer
740 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 ...
2
votes
2answers
869 views

What are the proper steps needed to install a grounding rod?

We had an electrician friend upgrade our service panel and install grounding rods. I've read that you have to drive the rod flush to or below ground. Please see these pictures. Is this okay? Do I need ...
2
votes
3answers
600 views

A closed breaker has some voltage going through - how is that possible?

Some background first: I have a single-phase system (220V). I installed an RCBO direct from the external supply and then the output from that went into the main breaker panel outside the house. I ...
2
votes
1answer
509 views

Is this panel ground rod correct?

I ran a 50 amp sub-panel to an outbuilding 120' from the main source panel with a four wire SOOW cable. I put the cable in an 1-1/2" conduit 2' deep. I connected the neutral to the neutral buss bar in ...
2
votes
2answers
3k views

What options are there to achieve both grounding/ground-fault and arc-fault protection on old 2-wire circuits?

The three receptacle circuits in my house are 2-wire NM, but have 3-prong receptacles. My electrician recommended and installed GFCI breakers to provide "grounding" to these circuits. I now realize ...
2
votes
5answers
84k views

3 wire service to panel… neutral and ground wires on the same bar? [duplicate]

I'm getting two conflicting reports and was wondering if anyone can help me. I was told that on the distribution panel, grounded conductors (neutral) and ground wires need to be separated in the ...
2
votes
1answer
74 views

Botched grounding in receptacle junction boxes

Background: I recently moved into an apartment building in Canada (built in 1969). I don't know much about the electrical code, how grand-fathering works within it, etc., but I have an intermediate ...
2
votes
1answer
157 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. ...
2
votes
1answer
75 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 ...
2
votes
2answers
169 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
2answers
2k views

What to do with dimmer ground wire?

I am replacing an old dimmer switch with no ground wire with a dimmer switch that has a ground wire. The metal box in my wall is grounded, but there is no ground screw or anywhere else to attach the ...
2
votes
1answer
240 views

How do i properly use conduit across roof shingles?

I am grounding an antenna and I have two 10 gauge copper wires from the antenna and coax ground block to the ground rod and I am going to put the wires in some 3/8" flexible conduit. Is there a proper ...
2
votes
3answers
2k views

Grounding an old 2-Wire system in my bathroom

I have been remodeling my bathroom in an old house with a 2 wire electrical system without conduit. It had a 2 prong outlet at the lower wall that I've replaced with a new standard 3 prong. Also I'...
2
votes
1answer
5k views

How do I/can I install a dimmer without a ground?

Full disclosure: I know very little about electrical work and was hoping for an easy fix. I have been getting a buzzing from my dimmer every time the dim feature is used, and I read that a low ...
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 ...
2
votes
1answer
989 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 ...
2
votes
3answers
909 views

Should I install GFCI outlets or run new grounded cabling in my older home?

I am renovating an old home(90 years) that my wife and I just purchased. The electrical system in the house is outdated - some of the outlets appear to be knob and tube but most are the brass and ...