ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
by Rabbit. 03/20/18 08:23 PM
Recall notice: Southwire wi-fi wall switches
by sparkyinak. 03/15/18 06:03 PM
Goodman Manufacturing Recalls Modular Blowers
by Admin. 03/13/18 10:40 PM
MAAX Spas Recalls Hot Tubs and Swim Spas
by Admin. 03/13/18 10:29 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 13 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Feeders to other buildings #192972
03/12/10 04:00 PM
03/12/10 04:00 PM
zapped208  Offline OP
Joined: Feb 2003
Posts: 197
Somewhere in USA
I have to supply a pole barn/garage.
It is the 3rd building under same owner.
2nd building,water supply/garage, has a 100amp underground to it, I will not be using that power for 3rd building.
Need to get power to 3rd building, but underground is out of the question.
So, I must go overhead from main building/service, with a mast, to 2nd building with a mast and panel/disconnect,through the 2nd building trusses/attic to the other end of 2nd building and mast to go to 3rd building,I do not need a mast there cause I will have the heigth,18'.
Can I use a 3 wire system and ground rods, or I need a 4 wire system with ground rods? Voltage is 208.
I know grounding for other buildings has changed, but I am getting older now and I am not buying anymore damn code books, the last one I have is 2002, and I also know that I cannot bond the neutral if I need to use the 4 wire system.

Work Gear for Electricians and the Trades
Re: Feeders to other buildings [Re: zapped208] #192973
03/12/10 07:14 PM
03/12/10 07:14 PM
gfretwell  Offline

Joined: Jul 2004
Posts: 9,186
If you are on the 2008 code you need a 4 wire feeder.

Greg Fretwell


2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman


Member Spotlight
Posts: 70
Joined: June 2012
Show All Member Profiles 
Top Posters(30 Days)
Admin 5
Trumpy 5
Popular Topics(Views)
244,537 Are you busy
181,661 Re: Forum
171,709 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.032s Queries: 15 (0.006s) Memory: 0.9425 MB (Peak: 1.0548 MB) Zlib enabled. Server Time: 2018-03-21 10:33:55 UTC