2006-08-29 23:56:35 · 9 answers · asked by forsakenex 2 in Home & Garden ➔ Maintenance & Repairs
ok i am a electrician 15 years and I am in new york city ,the grounding rod is 10 foot,and thee water ground has to jump the meter.i have done this all many times befor but, con ed dose not want a main disconnect switch on apartment buildings,t(his is new)i am not sure if i bond after the migb;s in the trouth and travle threw the meter pan or just ground the house panel, i guess i will see when the inspector shows up,
thanks for all the answers but some of u shouldn;;t give advice if you are clueless it could cause someone big heartakes
2006-08-30 02:41:00 · update #1
This should be the last place for an electrician to ask questions. Many answers are humorous (the one that thinks you said house plant). Most people on here answer things wrong, and the average DIYer knows just enough to be dangerous. I suggest you find one of several forums for professionals to ask your question, if you can't get it out of the code book. Also, the inspectors should be able to help you before you do the installation (don't wait for them to fail your inspection).
As for your question, I'm not sure I get a complete picture of your situation. Shouldn't you have a service disconnect someplace and then a feeder to the house panel (and unit's panels)? The grounding should be done at the service.
Also, are you doing this alone (or are the one in charge)? I would hope the electrician in charge would understand how to wire apartment buildings.
2006-08-31 03:19:21 · answer #1 · answered by An electrical engineer 5 · 0⤊ 1⤋
The #4 wire you ran to the house water main is required as part of the electrical service. This wire is known as a grounding electrode conductor.Two eight foot ground rods driven in the ground a least 6 feet apart are also hooked up to a grounding electrode conductor.These are required according to the national electrical code in USA. Have done many services and have never sleeved this wire in a conduit. None the less, the inspector has the final say. Ask the inspcetor where it says it in the code book. Good luck.
2016-03-17 04:43:16 · answer #2 · answered by Anonymous · 0⤊ 0⤋
There should be a Ground Rod, near the Meter Base. 100 Amp is small service in todays home.
2006-08-30 00:08:49 · answer #3 · answered by Anonymous · 0⤊ 0⤋
my 100 amp service is double grounded. I have an 8' rod sunk in the ground connected to the inside box with a #8 copper wire, I then have a #8 wire connected to the front side of the plumbing, meaning before the water meter. This is more than code in my area.
THEN if your talking about me, you should have given more info in the first place
2006-08-30 02:29:04 · answer #4 · answered by T square 4 · 0⤊ 0⤋
What does your NEC book say?
I'm not being facetious, but there are provisions in there for situations like this which even the local utility can't supercede. If there's no clear cut answer, do what seems the most appropriate. If the inspector has an issue with it, grab the book, show him where you're following the code and if there's something specific he's looking for, he'll tell you on the spot.
Seriously, NEVER think you're too experienced to not verify against the code book. And even more important, NEVER think the guy you're talking to knows code better than the book.
2006-08-30 12:09:10 · answer #5 · answered by Trid 6 · 0⤊ 0⤋
Definitely not in a house plant!
The proper grounding is a 2 feet galvanised rod or metal plate driven into the ground outdoors, and connected in the shortest way with a green (some countries green/yellow) wire to the breaker panel, and from there on to all outlets / appliances.
The "100 Amp Service" has no relevance here.
2006-08-30 00:38:37 · answer #6 · answered by Marianna 6 · 0⤊ 2⤋
andreym24 is an idiot and it scares me greatly that this person is an electrical engeneering student. I wonder what his gpa is? I don't live in New York, I live in a small town in Missouri. I have been an electrician for 16 years. I'm not completely sure about the details of your question, but I would think that you would ground the meter base as well as the panel. I don't see how not having a main would affect the grounding system.
2006-09-02 15:21:25 · answer #7 · answered by m_d_mack 2 · 0⤊ 0⤋
dude, the ground rod(s) must be driven into the ground. How many? That will depend on the soil conditions. From the ground rod(s), you should run a thick conductor (code says it must be equal to the phase conductor up to +/- 50mm2 cables, then 1/2 the area of the phase conductor for larger cables).
This ground conductor needs to be bonded to the neutral at the point of entry of the building (usually @ the main service disconnect). From that point on, (you will have a ground bus there), you should run your branch circuits ground wires separately from the neutral. Their gauge should be the same as the phase wires, just like mentioned above.
i hope this helps!
2006-08-30 06:39:22 · answer #8 · answered by marcelobsbflying 1 · 0⤊ 0⤋
100 amps is way to much for the house panel. You need proper grounding through a thick conductor rod. Talk to an electrician. If you ground a 100 amps to your house's grounding system you will cause a fire in case of a short circuit.
100Amps small service? Crcuit brakers for house consumers are max 30Amps... 100AmpsX220V=22000W that sort of power is consumed by a welding torch, and way to much for the electrical system in your house lol
2006-08-30 00:02:07 · answer #9 · answered by Λиδѓεy™ 6 · 0⤊ 3⤋
You need an earth rod driven into the ground.should be available at electrical suppliers.
2006-08-30 00:07:39 · answer #10 · answered by frank m 5 · 0⤊ 0⤋