Questions tagged [ground]

For questions about stuff physically in or on the ground. Questions about electrical grounding and/or bonding should use [grounding] instead.

145 questions
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Why is there a voltage on my HDMI and coaxial cables?

So, weird stuff is afoot and even my electrician is lost. All my HDMIs are hot, as well as my COAX coming from the cable company. Details of what is going on. Internet & cable went out, called service repair, cable guys noticed the HDMI & COAX were…
Alexia Wilson
11
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1 answer

Why is a ground wire wrapped around the bare portion of a neutral wire at this outlet?

Why is a ground wire of this outlet wrapped around the bare portion of a neutral wire at this outlet? This ground wire is a pigtail that is joined with the two other ground wires in the box. This outlet is controlled by a switch. There are…
user165559
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New Eaton AFCI/GFCI breaker signals (5 blinks) ground fault, but doesn't trip. How to track it down?

Where to start? *We bought a new house on a day's notice, and now I have to sell this 1885 Victorian. I'd like to minimize the scope of a home inspector's report. *The house is mostly the original 2-wire, but has a modern breaker box. *I replaced…
doogan78
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Adding second Ground Bus to Square D Sub Panel - Grounded via wire or just the screws?

I have added a sub panel next to my main panel. It is fed from a 100A breaker using 3-3-3-5 CU Service wire. I removed the ground screw to isolate the Neutral and I installed the ground bus that came with it on the left side. It is attached with 2…
GBJohns
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6
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1 answer

Using 10/2 and/or 8/2 for a 240 only 3-prong

I have 2 dedicated circuits: 40 amp water heater 30 amp electric range Both have 2 hots and a neutral grounded at the panel. One runs through a junction box where the wires are connected and continue to the water heater, the result of a previous…
Laramie
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6
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3 answers

Why am I measuring 60v at some outlets?

The house I bought a couple years ago had a couple outlets in a small room in the basement that didn't work. Now I'm troubleshooting them. It's a finished basement so I can't tear down walls. There's a lot of troubleshooting already complete so I'll…
Jason
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8/2 wire for 240v EV charger

I have installed an EV level 2 charger in my garage. It is a 30 amp charger. It is around 8 feet away from the breaker box. I used 8/2 wire to be on the safe side for future possible upgrades and used a 2 pole 40 amp breaker, as required by the EVSE…
Ali
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How do I figure out why I have current on electrical panel ground line?

I live in Maryland in a house built in 2007. The house has 400A service so I have two main panels of 200A each. There are two electrical service lines, one for each panel and two solid copper ground lines in addition to a gang of ground wires that…
4
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1 answer

Is it required to connect ground wire to light switch?

I'm installing a new rocker light switch. When I removed the old light switch I noticed that the ground wire was not connected. I also noticed that the other switch for the fan also does not have the ground wire connected. Is it required that I…
ptownbro
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New installation Shower room has sewer smell. Flushing toilet causes gurgling & vacuum in shower drain

Newly Installed ground floor Shower room has sewer smell.Flushing toilet causes gurgling & vacuum in shower drain
Margaret
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4
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Are the NEMA 10-30 to 14-30 adapters with the extra ground wire valid/legal to use and still adhere to code?

I know the correct answer is to always run a separate ground wire to properly upgrade a 10-30 receptacle to a 14-30 receptacle. However I noticed amazon sells many of these adapters which instruct you to plug in the separate ground wire to an…
Fred
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Why is my outlet failing shortly after being rewired?

I was working in the gas station and had a scorched outlet. I removed the outlet. The white wire was jumped over to the bare copper wire. I have never seen this before, so I called an electrician. He said it's wrong and someone didn't know what they…
Paul
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4
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Plastic shed base - How to level soil?

I am going to get a new shed but first I need the base. I have purchased a plastic grid base system, I have measured out the area and have cleared the turf on top. Now, I am coming a bit stuck on the best way to ensure that the ground is level…
physicsboy
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1 answer

22kw generator mounting pad on slope

I need to build a pad for a 22kW generator I am installing for my house. The image shows the situation. This generator is quite heavy. I plan to pour a rebar reinforced 6" pad for it. My question is--what to do to fill/retain the area in green? I…
peinal
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Do metal outlet boxes act as grounds?

Here’s a photo of the inside of a switch I’m replacing. As you can see it has no ground wire, plus it’s got a blue wire instead of the normal black. All the new 3 prong outlets I installed in this room replacing old 2 prong outlets also had no…
Tinycanoe
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