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Results tagged with grounding
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user 18763
Grounding (also called earthing) refers to the practice of providing an un-energized path back to the main neutral. This is done to allow any electrical faults to flow into that circuit, instead of anyone touching the fault. Use with the [electrical] tag.
-1
votes
No Ground wiring seen in Main Lug
A(2) Non-Grounding-type Receptacles. … An
equipment grounding conductor shall not be connected between the
grounding type receptacles. …
- 20.6k
2
votes
I do not see a ground wire to stake at the meter pole. Is this a utility problem?
Everything ahead of the service point belongs to the utility. Everything after that is yours.
Normally, the service point is ahead of the meter socket on the service mast or service pole.
The utility …
- 20.6k
1
vote
Off Grid PV System Grounding Question
First off you should tell us where you are on the planet in order to get accurate answers.
1)There are 8 grounding points in the drawing. Which of them should be bond together? … There is no exact answer here.
3) Where should I connect the Neutral Line to the Grounding Rod?
As close to the main service panel as possible.
Good luck! …
- 20.6k
2
votes
Accepted
Where should shielded data cables be grounded?
The industry practice is to ground the main panel end and leave the field end ungrounded.
If you ground both ends you create an antenna for RF interference. Search the web for dipole antenna design.
…
- 20.6k
1
vote
Adding ground to replacement sub panel
Since it is an existing installation you don't need the ground wire until you upgrade it.
Your inspector may even allow you to use the 3-wire method with the new panel until you replace the wiring.
…
- 20.6k
4
votes
How do you add a separate ground back to panel on 2 wire ungrounded outlet?
The equipment grounding conductor of a grounding-type receptacle or a branch-circuit extension shall be permitted to be connected to any of the following:
(1) Any accessible point on the grounding electrode … system as described in 250.50
(2) Any accessible point on the grounding electrode conductor
(3) The equipment grounding terminal bar within the enclosure where the branch circuit for the receptacle …
- 20.6k
35
votes
Is it OK to create a third prong ground from a cold water pipe, for a 2-wire circuit?
Article 250.118 of the National Electrical Code lists the approved methods of equipment grounding. Water piping systems are NOT listed there. … They are not used AS an equipment grounding conductor for circuits. …
- 20.6k
2
votes
old home. no ground wire
No. "Romex" is a trade name and is actually a brand of non-metallic cable or NM cable. Article 334 of the National Electrical Code.
If your house was wired with NM cable in the 50's or before, it mos …
- 20.6k
1
vote
Does the metal receptacle box for 6-30 NEMA need to be grounded?
(B) Grounding Continuity. … or a listed grounding device. …
- 20.6k
1
vote
Can I ground junction box directly to panel?
You should run another equipment grounding conductor from the panel to the box. … Then splice the equipment ground and bond it to the box with a #10/32 green grounding screw in the tapped hole in the box.
Good luck! …
- 20.6k
1
vote
Long outside wire run - can I JUST ground at both ends?
That is; the two hot legs, the neutral, and a grounding wire. The ground wire can be a separate wire from the other wires but should be run in the same trench with them. … You still have to establish a ground at the separate building using one of the Code approved methods for a grounding electrode. Such as the one you cite in your question. …
- 20.6k
3
votes
Using the existing neutral as a PE grounding conductor on a NEMA 10-30 outlet
Code.
250.119 Identification of Equipment Grounding Conductors. … The receptacle you have was designed and intended for the third prong to be a grounded conductor not an equipment grounding conductor.
406.4(C) Methods of Grounding. …
- 20.6k
1
vote
Is it personal preference or code to connect grounding wires and neutrals to separate buses?
In the Main service panel it is personal preference as that is the location where the neutral and ground are bonded anyway.
At a sub-panel separation of the neutral and ground is required by the Nati …
- 20.6k
2
votes
Outlet tester shows "bad ground"
The equipment grounding conduc- tor shall be used for grounding or bonding of equipment, structures, or frames required to be grounded or bonded. … Any installed grounded conductor shall not be connected to the equipment grounding conduc- tor or to the grounding electrode(s). …
- 20.6k
1
vote
Open ground on all outlets, voltage meter beeping on metal boxes and MC cable
Well, don't trust the no-contact tester to tell you anything but the presence of voltage somewhere close to the end of it. Beyond that they aren't much use.
From what you said in #4 you have an open …
- 20.6k