For questions dealing with grounding and bonding of electrical installations, and the specific requirements of such.

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3
votes
1answer
53 views

How to add a surge protector on 240 circuit at pool sub panel - neutral or ground connection?

Trying to add a surge protector at a sub panel by pool. The 240 circuit runs from the main load panel on side of house to sub panel by pool - red, black and green only - to a disconnect and the pump. ...
2
votes
1answer
86 views

If i use one ground wire for two outlets, will my equipment get damaged?

If i use one ground wire for two outlets, will my equipment get damaged? Here is what I want to do: If my air conditioner sends voltage through the ground wire shared with the outlet powering my ...
6
votes
2answers
68 views

Can cold bond be connected to ground rod?

I am updating the main breaker box and want to sure everything is done properly according to the NEC. Can I run one ground wire (4) from the panel to the grounding rod and then another wire (4) from ...
1
vote
1answer
54 views

How do I test to make sure my panel is grounded correctly and all the bonding is correct?

We recently did a service panel upgrade, added a breaker that goes to the subpanel in the garage, installed two ground rods, connected the ground rod to a cold water pipe, bonded the cold-hot-gas ...
0
votes
2answers
55 views

Bonding Neutral and ground in a service panel

My home has a 200amp meter box with 6 double breakers beneath the meter under a flap - 4 breakers are 60amp (stove heater, AC, unknown) - there are also 2 100amp breakers going to load centers inside -...
3
votes
2answers
95 views

Why do we need bonding at the gas water heater?

We recently upgraded our electric service...had to put in a new panel, etc. The city inspector came by and said that everything looked good except that we still need to "Bond Hot-Cold-Gas with #6" @ ...
1
vote
2answers
74 views

How to size an earth continuity conductor?

For the line wires, I just check the maximum load current and select a conductor from the manufacturer datasheet that can support that maximum current. What about earth continuity conductor, how it ...
5
votes
3answers
406 views

What can I do about a severed grounding wire?

After doing some yard cleanup, I realized that my panel ground wire was severed. I went to Home Depot and was told that they only carried a temporary solution (see attached photo) and that I should ...
0
votes
1answer
52 views

New Main Panel & Sub-Panel - Hooking up Ground / Netural - Connecting to Plumbing / Ground Bar

Older 1960's house. The outside panel is a FPE Stab-Lok that needs upgraded. Will be using this panel to upgrade it, which has a 125-amp main breaker: The current box is directly to the left of the ...
0
votes
1answer
75 views

TV antenna installation: How to ground

I'm going to be installing a TV antenna with a mast. I want to make sure I ground everything properly. As far as I can tell, I need to ground the antenna via the coax and a grounding block, and then ...
2
votes
4answers
202 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 ...
3
votes
3answers
184 views

Do I have to connect the grounding electrode at a detached garage to the grounding electrode at the main structure?

Article 250.32(A) of the National Electrical Code, tells us that we need a grounding electrode at a detached garage. It also says that it has to be "installed in accordance with Part III of Article ...
1
vote
1answer
31 views

The subpanels ground is not bonded to main panels neutral busbar

The main panel has a neutral and three ungrounded conductors entering it from the utility provider is also has a grounding rod the neutral and three conductors get transmitted from one location to the ...
5
votes
3answers
181 views

Checking light switch for grounding problems

I have a light switch in my building that frequently gives me a "shock" when I push it. The shock seems to come from the two mounting screws. It has a photoelectric sensor that turns the light off ...
2
votes
1answer
111 views

Can I use a switch to toggle the neutral bonding on a generator?

I am in the process of attaching a 2-Pole transfer switch to my breaker panel and powering it by a 7500W generator. The generator is neutral-bonded-to-ground. I understand I have to disconnect this in ...
5
votes
4answers
724 views

How do you ground residential network equipment?

I needed to run some Cat5e UTP network cables and decided to add network outlets to most rooms, run new phone wiring and RG6 as well. Much of what I've seen and read about residential and small ...
0
votes
2answers
1k views

Is an explicit ground wire required through steel conduit?

We just bought a Chicago-area house and found that there's no ground wire in some of the recently re-wired areas. I thought that the national electrical code requires a ground wire for new ...
0
votes
1answer
162 views

Should I bond neutral in sub panel- there is no electrical ground

I have a question about my sub panel that I'm installing in a shed in the back yard. I'm using a 3 wire feed from the main panel to the sub panel (H-H-N). ...because I'm using the 3 wire feed, I'm ...
2
votes
2answers
4k views

What size conductor do I need to bond water and gas piping? [duplicate]

What is minimum size ground do I need for a 200 amp panel? I need to bond the hot and cold in the water heater and already have a ground rod in the ground. I also need to bond the water and gas.
2
votes
0answers
67 views

Where should I bond neutral to ground? [duplicate]

I have an old house that was remodeled with a bathroom addition added years ago. I have two breaker panels: the outside service entrance panel (A) and another panel in the garage (B). I found bonds ...
0
votes
2answers
865 views

Where do I connect the ground wire in the disconnect?

I had to put a disconnect after my meter, and run 4 cables to my main box. I had to remove the bonding screw in the main box, and separate the white and ground wires onto their own bars. The 2 hot ...
1
vote
3answers
999 views

Grounding requirements for main panel and subpanel

I recently had my main service professionally upgraded to 200A and had a 60A subpanel installed in my master suite to support future additions. All work passed city inspection, for whatever that's ...
0
votes
1answer
76 views

Grounding a sub panel in separate building

There are many posts everywhere about this, but I'm still not clear on one thing. I have a separate building about 90 feet from the house where a buried 10-2 UF cable (2 conductors and a ground wire) ...
2
votes
1answer
690 views

Does adding a disconnect box below the meter mean that my service panel is now a subpanel?

I don't understand the bonding at my main disconnect. My problem is that my main panel in the house was wired OK with the neutral bonded to ground. The power company added a disconnect box below the ...
1
vote
1answer
535 views

Should both ground and neutral in an electrical subpanel be bonded to the service ground?

I put in a 100 AMP sub panel from a 200 AMP service. The neutral and ground are separated in the sub panel. Would this bond the sub panel to the ground and neutral coming from service ground wire? I ...
1
vote
0answers
40 views

Should there be a grounding conductor between my meter and panel?

home being rebuilt after hurricane, it is elevated on piles 13ft hight, main panel is contected by 3 conductors, L1,L2 and N, those conductors go to meter, there are 2 grounding rods installed outside ...
4
votes
2answers
633 views

What are the grounding requirements for a panel fed from another panel?

I have a 60 amp subpanel in my garage and plan to add a second 30 amp subpanel to an out-building 130 ft away (fed from the 60 amp). I Plan to run 6 AWG 4-wire from the 60 amp to the 30 amp in 1 1/2 ...
3
votes
2answers
2k views

Can I drive a ground rod near a gas meter?

I am redoing the electrical in my 1940s house. The house has no grounding electrodes but the meter and panel are grounded to my water pipe outside in the front of the house. (This actually looks like ...
4
votes
1answer
236 views

Can two ground rods be bonded via a PVC conduit above ground?

According to my understanding, if a supplementary ground rod is installed, it must be bonded to the existing rod via a buried 6 AWG cable (NFPA 70). However, because virtually every side of my house ...
4
votes
3answers
242 views

Mild Electric Shocks in Bathroom

I have been subject to mild electric shocks in my bathroom for years. It's probably a good time to figure out the problem (I'm still here), so I have check the voltage across the shower valve and the ...
2
votes
2answers
7k views

Do I need to ground my above ground pool / with saltwater system?

I just bought a 21'x52" above ground pool. I am going to use a saltwater system with it. Do I need to ground this pool ?
1
vote
2answers
8k views

Did I use the ground wire right? (Light Fixture)

I took down an old ceiling fan in my home, and replaced it with a basic light fixture. When I took the fan down, I saw the normal white and black wires, but no ground coming out off the ceiling. The ...
2
votes
2answers
722 views

What do I do with the ground wire?

I just bought a wall timer to replace a three-way switch. The wall timer comes with three wires, one for the common screw wire, and the other two are for the travelers, with no place for a ground wire....
3
votes
2answers
2k views

Why was the ground for this fluorescent fixture not connected to the ballast?

I just purchased a set of fluorescent fixtures that are fitted with a plug to connect to a standard 3-prong receptacle. My intention is to replace the plug with Romex cable, and wire the fixture ...
1
vote
2answers
8k views

What should I do with the exposed grounding wire during a conversion from hardwired to plug in light fixture?

I am working to convert a hard wire light fixture which I have purchased to a plug in light fixture. The light fixture was designed for outdoor use, but I will be using it inside. Coming out of the ...
1
vote
1answer
192 views

Integrating into knob-and-tube wiring: okay to borrow a ground [duplicate]

I have a mixture of knob-and-tube and NM-B. If I'm extending from knob and tube, but I have a (different) an NM-B circuit nearby, is it technically allowable to ground via ground wire in the other ...
3
votes
3answers
5k views

How do I ground my replacement outside porch light?

I am attempting to replace an outside porch light. After removing the old light, I found the metal electrial box had the ground supply attached to a screw. The new light has a green ground wire and I ...
3
votes
2answers
742 views

Why didn't homeowners get electrocuted when appliances were grounded through the neutral?

I read that appliance at certain times in the U.S. (for example stoves) were grounded through the neutral wire. Since the neutral wire carries current does this means the case of the stove itself is ...
6
votes
2answers
514 views

Bonding Ground Rod for Rooftop Antenna

I am installing a rooftop antenna on the end of my house, opposite the end where the ground rod is located. I plan to install a new 8' ground rod on the ground directly under the antenna. I need to ...
7
votes
2answers
651 views

How should this circuit be properly grounded?

I am hiring an electrician to do the work so my question is more for my education and helping me ask the proper questions to the perspective contractors. Purchased a condo recently and want to put in ...
2
votes
1answer
338 views

Is it possible that this GFCI receptacle is grounded without an equipment grounding conductor being connected?

I was attempting to upgrade an old outlet to a GFCI outlet. There are only two wires one black and one white. There is no ground wire. However the receptacle tester read "correct wiring". Is it ...
0
votes
1answer
478 views

Why is the red ground light on, on my AVBar10 surge suppressor?

I have a Tripp Lite AVBar10 that shows two green LED on the outside ("protected" and "line OK") and a red LED in the middle ("ground"). I went to Lowes and got an outlet tester, and all the circuits ...
1
vote
4answers
4k views

Using Water Supply Pipe to Connect the Earth Wire

In the past, it was common to connect the earth wire (green/yellow wire) of an appliance to the water pipe. But now we were told to connect it to the earth pin of the power plug, instead. But, why ...
2
votes
2answers
21k views

Is it okay to not connect the grounding wire to a ceiling box?

Is it ok to connect the ground wire of a new light/fan fixture to the ground wire of the house without connecting them to the ground screw in the outlet box? The new ceiling fan/light had a ...
2
votes
1answer
23k views

What should I do with the extra grounding wire in my ceiling fan box?

I am installing a Hampton Bay Ceiling Fan that has a transmitter install for the remote. I have a green ground and a bare copper ground coming from my ceiling box. I have a green ground coming from ...
1
vote
2answers
1k views

How should I properly ground a separate building?

I installed a sub panel in a building that is around 200' from the main panel so I omitted the neutral and ground from the main panel therefore running only the 240V from the main. I hammered a new ...
21
votes
4answers
14k views

Is it OK to borrow a ground wire from a different circuit?

I've got a circuit in the basement carrying a handful of outlets. This circuit has no ground wire. I want to add a couple of outlets and want them to be grounded. I may even want gfci outlets on ...