ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 10
Recent Posts
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Dimmable LED 2x4 lay in fixtures
by gfretwell. 04/22/17 01:14 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
How do you find a good employee?
by HotLine1. 04/22/17 10:44 AM
Electrode boilers question
by SteveFehr. 04/21/17 08:32 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,483 Are you busy
169,112 Re: Forum
162,485 Need opinion
Who's Online Now
0 registered members (), 50 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#4559 - 10/02/01 10:09 AM GFI Wiring Drawing - Discussion Hosted By Nick  
Scott35  Offline

Broom Pusher and
Member
Joined: Oct 2000
Posts: 2,707
Anaheim, CA. USA
Discussion thread for Schematic drawing posted for ECN's Member "Nick" in the Technical Reference Area under the subject heading:

GFI Wiring Schematic - Per ECN Member

Please feel free to ask questions, or make comments for Nick, in regards to this drawing.

Scott SET. 10/02/2001 07:07:00

Edit= embedded hyperlink to schematic

[This message has been edited by Scott35 (edited 10-02-2001).]


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!

Work Gear for Electricians and the Trades

#4560 - 10/04/01 10:58 PM Re: GFI Wiring Drawing - Discussion Hosted By Nick  
Nick  Offline
Member
Joined: Aug 2001
Posts: 599
Riverside, CA
Just to add a little explanation to this one. This is a Modified Differential Ground fault system designed by GE Industrial systems for a specific project. It is just an example of how to tie together multiple services and feeds that all have, and are required to have, ground fault protection.
This one has three 4000A services (utility feeds) tied together with tie breakers. In addition to the services there are two 1500KVA generators paralleled and tied directly to one of the sub station bus via a kirk-key system. All 5 sources have ground fault protection and require neutral to ground bonds for it to operate. Not code legal you say? (I sure did at first) Well it works by forcing the neutral current to the appropriate breaker (the one in use) so it's ground fault circuitry senses properly.
It is NEC compliant if approved by the AHJ and apparently is not uncommon where multiple services are utilized. [Linked Image]


#4561 - 10/05/01 06:32 AM Re: GFI Wiring Drawing - Discussion Hosted By Nick  
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,306
Pretty fancy Nick, [Linked Image]
those kir-key systems are quite the alternative to a T-switch, are there any links to read/view etc. about them that U know of?


#4562 - 10/06/01 01:59 AM Re: GFI Wiring Drawing - Discussion Hosted By Nick  
Nick  Offline
Member
Joined: Aug 2001
Posts: 599
Riverside, CA
If your looking for info on Kirk Keys check out
www.kirkkey.com


#4563 - 10/06/01 03:42 AM Re: GFI Wiring Drawing - Discussion Hosted By Nick  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,878
NY, USA
Very neat work Nick!
I think We should start a directory somewhere to catalog these things.
I'll put it on the 'to do' list [Linked Image]

[Linked Image]
Bill



Member Spotlight
Grover
Grover
Sebago, ME, USA
Posts: 109
Joined: January 2005
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: 0.011s Queries: 14 (0.003s) Memory: 0.7678 MB (Peak: 0.9058 MB) Zlib enabled. Server Time: 2017-04-23 12:00:56 UTC