10
votes
Does adding an explicit ground wire to EMT conduits provide any advantages?
If the conduit might be damaged because it is run somewhere you might step on it for example then an explicit ground wire is required.
Otherwise the upside is that you then don't have to rely on the ...
- 11.6k
8
votes
Does adding an explicit ground wire to EMT conduits provide any advantages?
EMT for ground relies on
Scratching the paint off, adequately, from breaker panels or other painted boxes to which it is attached,
Set screws being tight, rust-free, etc.
the system remaining intact ...
- 34.3k
8
votes
Do I have to run the #4 bare copper ground wire continuous with out a break in the wire from the new 200amp outside meter/main panel combo to the 2 g
A few different pieces here:
Ground wire from main panel to ground rods. This is one wire, no breaks/splices.
Ground wire from main panel to copper water pipe. Many jurisdictions no longer require ...
4
votes
Can I use a 6AWG ground wire for a 100A feeder that has a section SER 1-1-1-3 and a section THHN?
Note ThreePhaseEel's comment about SER/ TC-ER dual rated cable,good to run without conduit inside a house, and also inside a conduit outdoors.
Any issues with using a 6 AWG Aluminum ground?
That's ...
3
votes
Accepted
Connecting a smart switch ground wire to a metal junction box
Use the screw that has the green device ground wire. Remove the current green wire, put in a “pigtail” (a piece of bare or green insulated wire about 6” long) and attach (using a wire nut, lever nut, ...
- 5,765
3
votes
Connecting a smart switch ground wire to a metal junction box
I found a video of your box.
It has two grounding screws pre-mounted per section, so you ground there as well.
Just like the gang to the right.
- 201k
3
votes
Accepted
Why Surge Protection Device (SDP) fails and how to deal with that
A whole-house surge protector, or surge protection device (SPD), is designed to pass extra electricity higher than a certain voltage limit. In fact it is always passing electricity, since the MOV ...
- 6,414
2
votes
Is there a way to check if your breaker box is grounded?
Dig (carefully and gently so you don't damage the wire) it probably goes down into the ground where the service wire goes up along the wall. Grounding rods are commonly buried a bit at the top so they ...
- 201k
2
votes
Connecting a smart switch ground wire to a metal junction box
On metal boxes, ground wires go to the box first.
Switches with a metal yoke (thing the screws go through) automagically pick up ground from the metal box, via the mounting screws. You do not need a ...
1
vote
Is there a way to check if your breaker box is grounded?
Since, per comment on @Ecnerwal's answer, you can't dig to find the ground rods, if there are any, you may have to get an electrician out to do a ground resistance test. This will tell not only if you'...
- 6,414
1
vote
Accepted
Replacing a 4-gang standard switches with smart Kasa switches
How do I connect all the neutral white wires from the switches to the white neutral bundles in the box? There are too many wires to fit within one cap. Do I split into two or three caps and make sure ...
- 775
1
vote
How to Ground flexible metal conduit (FMC)
The listed connector used to attach the flexible conduit to the (grounded) box is all that is needed to ground the conduit. The conduit only needs to contain a single Equipment Ground Conductor (EGC) ...
- 2,538
1
vote
Does adding an explicit ground wire to EMT conduits provide any advantages?
Does adding an explicit ground wire to EMT conduits provide any advantages?
EMT conduit does not pass an absolute ground, since it's couplings are friction fit, so including a ground wire along with ...
1
vote
Common ground wire for multiple circuits with different wire sizes
Having multiple circuits share a grounding wire is A-OK
NEC 250.122(C) permits you to have multiple circuits in the same conduit or cable share a single grounding conductor:
(C) Multiple Circuits
A ...
- 81.7k
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