ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Baseboard Mounted Light Bulb Socket
by SPSchuman. 07/15/19 03:22 PM
Hunter Fan Recalls Brunswick 3 & 4 Light Fans
by Admin. 07/11/19 11:08 AM
Honeywell Recalls some Smoke Sensors
by Admin. 07/11/19 11:03 AM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 9 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Grounding at Panel... #69498
09/11/06 01:40 PM
09/11/06 01:40 PM
C
Cinner  Offline OP
Member
Joined: Dec 2004
Posts: 78
Kelowna, B.C., Canada
When the power authority company brings you the cables for a residence, they bring 2 hots and a white...is the white wire grouded back from where it is fed or is it just the center point of a transformer...I was thinking of the possibilty of grounding the wire twice and the causes of that...circulating currents?

Work Gear for Electricians and the Trades
Re: Grounding at Panel... #69499
09/11/06 03:21 PM
09/11/06 03:21 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,373
Estero,Fl,usa
Yes the PoCo does ground the neutral.
There are parallel currents all over the place on the line side of the service disconnect and the NEC is silent on it. That is NESCland and they don't care.
I can see about an amp of "neutral" current on my ground electrode conductor and a similar amount on the ground wire going up the pole outside.


Greg Fretwell
Re: Grounding at Panel... #69500
09/12/06 06:05 AM
09/12/06 06:05 AM
P
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
We have several different grounding arrangements here, but the the neutral is always grounded at source by the power company.

Our PME / TN-C-S system is the most like standard American practice, and has the neutral re-grounded locally at the service entrance, so we can have parallel neutral paths line-side of the meter too.


Featured:

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

 

Member Spotlight
togol
togol
NW In. USA
Posts: 421
Joined: September 2005
Show All Member Profiles 
Top Posters(30 Days)
Admin 5
Popular Topics(Views)
257,121 Are you busy
192,952 Re: Forum
182,607 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.019s Queries: 14 (0.004s) Memory: 0.9512 MB (Peak: 1.0761 MB) Zlib enabled. Server Time: 2019-07-20 05:15:15 UTC