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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50 views

Wiring 2 prong outlet to 3 prong outlet

hi so i brought a old house and some of the rooms have 2 prong outlet with only hot/neutral wire and i changed the 2 prong outlet to a gfci 3 prong outlet but it doesnt have a ground. My question is ...
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Refrigerator restarts when a 3 pin plug is plugged to socket like Laptop Adaptor

Over last few months I'm noticing whenever I connect my Laptop cord and turn on the switch my Refrigerator in the kitchen is restarts as if power has gone and comeback. This happens primarily with 3 ...
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Are My Electrical Boxes Actually Grounded?

I have a building originally wired for electricity in 1952, with other sections done more piecemeal within the last thirty years or so. This old wiring is a two-wire, cloth-sheathed wire that feeds ...
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Mystery circuit breaker causing odd behavior in other circuits such as polarity switching and power on ground

There is one romex that runs from my box to the upstairs. This romex has 4 wires, black, red, white and green. The black wire goes to breaker 30, the red wire to breaker 32, the white wire to the ...
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51 views

TV antenna far from box - how to ground?

Following under the eaves of the house it is about 70 feet to the box. This seems a long way for a good ground connection. A shortcut through the attic is possible but the room closest to the box has ...
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adding new circuit to generator subpanel without a ground bar

I have a main Square D panel with a post-installed Generac (Siemens) subpanel with automatic transfer switch to standby generator. I want to add a new 15A circuit to the subpanel so I can move a ...
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what is the proper connection method for wire to wire connection for outdoor ground bonding

I'm putting an above ground pool in the backyard and code requires that I bury a #8 gauge wire 4-6" all around the perimeter. Then it is to be attached to the metal pool frame at 4 equidistant ...
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Grounding Upgrades While Replacing/Adding Panels

I've previously mentioned in other questions my plans to upgrade two old and insufficient subpanels which serve my garage and its upstairs apartment. Note that the garage is attached to the house; it ...
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Replacing an existing ground rod

I recently accidentally knocked the ground clamp off of one of my two ground rods with my lawn mower. This rod is the one connected to the water line, not the one connected to the main service panel. ...
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Off Grid - Panel(s) question

I currently have a 200amp Main panel in my off-grid cabin I am building. I want to feed the panel from my generator which is about 100' in a shed. Originally my contractor a few years back buried ...
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Why does light switch not use ground wires inside of box?

I was replacing some toggle type light switches to rocker type and ran into something I thought was unusual. There were 3 switches boxes (2 boxes had 1 switch, and the other had 2 switches) I was ...
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How to install an earthing system?

How can I wire an earthing system if I am installing a single phase panel board? Which type of grounding/earthing would be okay for such installation?
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How does metal bracket provide ground?

I am replacing an old light fixture. The junction box has no ground wire coming out of it. The instructions say that if this is the case to attach the ground wire from the light fixture to the green ...
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What purpose does a 3+1 outlet/circuit provide when the neutral bus is grounded?

I'm trying to wrap my head around what the benefit is of having to use a 4-prong outlet for newer appliances when it appears the neutral and ground both end up in the same spot. In a dual pole ...
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Can i connect my solar system to the ground wire of a grid outlet?

I have solar panels on the roof (ungrounded) and an ATS to switch between solar (ungrounded) and grid power. (grounded) EDIT : Sorry, my question wasn't clear enough, I'm talking about AC. My ...
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Does the ground bar on a subpanel need to be bonded to the subpanel?

I had a lightning strike near my house that damaged the electric in my shed and now I need to replace the subpanel. I have a question about the groundbar. In the subpanel I am replacing the grouond ...
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220ft Feeder Run to Storage Shed

The Objective: Run a combo Heat/Cool Window unit, 1 switched light and some outlets to a detached storage shed 140 ft from home. Temperature goal is 60F min in winter and 80F max in summer. Located in ...
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Grounding 3 wires to electrical box with 2 ground screws

I've installed a metal electrical box. There are 3 cables coming into the box. The standard box only has 2 ground screws. My inspector said I am supposed to have 1 single ground per screw... So, how ...
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Is grounding the subpanel not required some times

Is the sub panel properly grounded, only Load and Neutral wiring were located at the sub panel as shown below. This Sub panel is at a single floor Condo, built 1970, Updated with Newer Electrical ...
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Ground a dryer converting to a 3-prong cord - manufacturer hardware missing

I need to change the cord on an electric dryer from 4-prong to 3-prong. My questions concern 1) what to do with the ground when moving to the 3-prong dryer and 2) how to test whether the installation ...
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Lighting fixture: 2 live, 2 neutral, no ground - Is is okay to have the 2nd neutral used as a ground?

I live in Germany and I have just moved into a new apartment and started to change the light fixtures, but I ran into confusion. Wires coming out of the ceiling are - two black & two white (no ...
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71 views

Running wire for new subpanel in garage, how to best utilize existing wiring considering the scope of my project?

I have a 200amp main panel in my home, and my garage has a subpanel fed by a two pole 50amp breaker by approximately 85' of 6/3 plus ground cable. I use my garage as a workshop, greenhouse, and office....
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Daisy chaining ungrounded LED, what do with last ground wire?

I’m daisy chaining 4 LEDs that aren’t grounded and was wondering what to do with the last ground wire. For the first 3 LEDs, I connected the grounds with a wire nut (see picture). What should I do ...
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54 views

Can neutral be used instead of ground for a tankless water heater?

A friend wants to install a tankless water heater under the kitchen sink for faster hot water and plans to use a 40A circuit near the sink that is meant for an electric range. The house was built in ...
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Is the ground resistance meter indispensable when grounding your home?

I'm Brazilian and I need to ground my house, especially because of some expensive equipment I don't want to use without proper protection. By "grounding my house" I mean: provide an alternative path ...
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Is the ground resistance meter indispensable when earthing your home?

I'm Brazilian and I need to ground my house, especially because of some expensive equipment I don't want to use without proper protection. By "grounding my house" I mean: provide an alternative path ...
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47 views

Is it sufficient to ground to a box using the NM clamp?

Is it NEC compliant to wrap the ground wire from a 14-2 around the sheathing and then clamp it using the NM clamp in a metal junction box? I live in a house built in the 60s and I see that a lot but ...
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Ground wire arcing in breaker box

While inspecting the breaker box in my shop area I noticed inside the breaker box was a ground wire that was loose inside the box. The other circuits had grounds connected to the neutral bar. Upon ...
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158 views

Using a Leviton GFCI self grounding outlet on 1950s house with metal boxes that might or might not be grounded

My house (1950s) currently has a bunch of 2 prong outlets or un-grounded 3 prong outlets. I was told in order to be up to code all un-grounded 3 prong outlets need to switched to GCFI outlets. Or If I ...
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How do I manage grounding when installing a metal extension on a plastic box?

I've been repairing an outlet that's not supposed to be recessed, but is, so I purchased a box extension from the local hardware store. When I tried to put it in, I realized it interferes with the ...
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38 views

Grounding wire attached to ceiling lamp but canopy of light fixture not grounded, is this serious problem?

I've just installed a new metal pendant light. The light itself has a metal canopy and there is a metal bulb holder below, the two parts are connected via insulated wire. The light came with a ...
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2answers
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Old house, no Neutral coming from APS pole. Neutral vs Ground

I'm installing some 110v Mini Split Air conditioners and want them on a separate breaker. The Main Panel only has 2 HOT wires coming in from the Mail Pole. The neutral wire is connected to the Ground ...
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Paid an Electrician to install Sub-panel.. & Ground wire question

A couple of years ago, I was needing a sub-panel in my garage. While I intended to do it myself, shoulder surgery precluded me from being able so I hired a local, licensed electrician. He did a ...
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Receptical Box located In bottom kicthen cabinet

We have a receptacle Box located in a bottom kitchen cabinet on the back wall with 1 white, 1 red, and 1 black wite. No ground. I wanted to add a plug to it and then took a closer look at what I was ...
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Metal Junction Box screwed to wood - same screw used for grounding

My brother has a metal pancake box directly screwed into a 2x4. That same screw used to fasten the box is also being used to ground the box. i.e metal pancake box screwed into the wood also has the ...
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Turning on light fixture trips GFCI on a different circuit

When I turn on the light fixture in the bathroom, the GFCI in the bedroom trips and cuts the power in both places. The bathroom and bedroom are on two different circuits, controlled by two separate ...
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How to ground private 2/0 aerial triplex from meter to garage

Where to ground aerial 2/0 triplex bare neutral at the meter/pole. Can I connect directly to power company strand/neutral? Or connect to mast (customer equipment)?
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Electrical sub panel grounding

I am concerned about improper / unsafe condition(s) that I noted at the house’ s electrical sub panel. House that was built in mid-late 1960’. The main panel and the sub panel are older, likely when ...
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1answer
61 views

Ground wire blew off new light fixture

I bought a new single-bulb light fixture. It's going in a small animal cage, so the wall plug comes in through the ceiling of the cage. I connected white to white, black to black, and green to a green ...
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Grounding in main panel without visible ground wire or ground bar

I am exploring a way to install an outdoor outlet out of my main electrical panel but I couldn’t find any visible ground bar(s) that the ground wires (in green color) can connect to, nor do I see a ...
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Light fixture with no mounting bracket

I'm changing a light fixture that has no mounting bracket and the ground runs to a nut and bolt. The old light fixture bracket won't work cause the new light fixture won't cover it up. Where do I ...
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2answers
46 views

Extending ground from one circuit to another

One of my circuits has a compromised ground wire, by something along the route of its cable ( like a nail or something ) so it's not grounding properly. If it has only one receptacle ( dishwasher + ...
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Do I need to ground my off-grid house inverter?

I'm building a battery box for my off-grid house, consisting of a 155AH AGM sealed battery, Krieger 1100-watt inverter and a Samlex SEC-1230UL 30A battery charger for using my generator to charge the ...
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Electical Outets with Bootleg ground

I replaced a couple of broken outlets that had a “bootleg ground “ on them. Most posts say it’s dangerous to have bootleg ground. Older home, no ground, no metal, no metal sheathing on wires. ...
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Does my pergola need to be grounded?

I’ve had a deck and pergola constructed and the pergola is constructed from steel 5 X 5 poles, 4 I-beams and 2 X 2 square tubes for the top. It’s about 700 sq ft. My question is: Does it need to be ...
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57 views

Replacement GFCI isn't working correctly

I have a bathroom outlet where the GFCI is going bad and needs replacement. There is one line and 2 cables coming in for 2 loads so there are 3 black wires, 3 white wires, and 3 ground wires coming ...
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Gronding requirements for standby generator

I'm installing a standby generator for my son's new home build and have questions about grounding, bonding the genset. We are installing a Kohler RXT 200 amp transfer switch between the meter base ...
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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 ...
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Can I use #12 ground wire as jumper when the other wire in the box is #14?

If everything is wired with 14 gauge romex on a 15 amp breaker, can I use 12 gauge ground as a jumper inside a box? This would be to either ground the box itself or as jumper between to outlets.
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Intersystem bonding terminal - how direct?

Back before I knew what an intersystem bonding terminal (IBT) was properly called, I had my service entrance put in by an electrician, licensed in 3 states, who never-the-less pulled things I now know ...

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