ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
twh 10
Admin 4
Recent Posts
Windows 10, who's upgraded?
by ElectricianBud. 05/27/17 11:02 AM
How do you find a good employee?
by ElectricianBud. 05/27/17 10:58 AM
Recall notice: Bosch Solar panels
by ElectricianBud. 05/27/17 10:53 AM
Correct rotation, wrong sequence
by Potseal. 05/27/17 12:15 AM
Dryer, Range grounding from "Main" panel
by sparkync. 05/25/17 05:49 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
236,965 Are you busy
171,971 Re: Forum
164,849 Need opinion
Who's Online Now
0 registered members (), 72 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#58294 - 11/05/05 02:03 AM grounding fields? theory  
NJI  Offline
Member
Joined: Jul 2005
Posts: 33
Oneonta, NY USA
can anyone explain the hazards of running a 4wire subfeed 120/240 AND puting in ground rods. Other than the fact that you shouldn't i'd like to brush up on the theory behind it.


I have worked as an apprentice and on to a journeyman in a general construction company. 90% of what I do is residential. I have an associats degree in electrical technology. I have started my own buisness this year and am with out the help of other electricians. this is why i find this site so helpful.

Work Gear for Electricians and the Trades

#58295 - 11/05/05 09:09 AM Re: grounding fields? theory  
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
IL
NJI,
Quote
can anyone explain the hazards of running a 4wire subfeed 120/240 AND puting in ground rods. Other than the fact that you shouldn't i'd like to brush up on the theory behind it.

Who told you that you shouldn't do both? If the sub panel is at a second building and you pull an EGC, the code requires a grounding electrode system at the second building.
Don


Don(resqcapt19)

#58296 - 11/05/05 11:45 PM Re: grounding fields? theory  
NJI  Offline
Member
Joined: Jul 2005
Posts: 33
Oneonta, NY USA
As I have understude my AHJ one or the other. Can you give me my code references? I thought one or the other. four wire or three and a rod.


I have worked as an apprentice and on to a journeyman in a general construction company. 90% of what I do is residential. I have an associats degree in electrical technology. I have started my own buisness this year and am with out the help of other electricians. this is why i find this site so helpful.

#58297 - 11/05/05 11:47 PM Re: grounding fields? theory  
Larry Fine  Offline
Member
Joined: Feb 2005
Posts: 693
Richmond, VA
No, it's bond neutral to ground, or 4-wire.


Larry Fine
Fine Electric Co.
fineelectricco.com

#58298 - 11/05/05 11:53 PM Re: grounding fields? theory  
Roger  Offline
Member
Joined: May 2002
Posts: 1,716
N.C.
NJI, read 250.32

Roger


#58299 - 11/06/05 12:14 AM Re: grounding fields? theory  
NJI  Offline
Member
Joined: Jul 2005
Posts: 33
Oneonta, NY USA
thanks, i'v been searchhing past posts and am reading as we speak..workin on it


I have worked as an apprentice and on to a journeyman in a general construction company. 90% of what I do is residential. I have an associats degree in electrical technology. I have started my own buisness this year and am with out the help of other electricians. this is why i find this site so helpful.


Member Spotlight
Niko
Niko
Campbell, CA
Posts: 356
Joined: August 2006
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.012s Queries: 14 (0.002s) Memory: 0.7756 MB (Peak: 0.9226 MB) Zlib enabled. Server Time: 2017-05-29 05:41:09 UTC