The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Looking for older post
by Trumpy
16 minutes 16 seconds ago
Last time to chat here
by Trumpy
Yesterday at 11:41 PM
Unsafe Situations
by Trumpy
Yesterday at 09:46 PM
Safety at heights?
by Trumpy
Yesterday at 09:13 PM
Webmaster > Admin
by Trumpy
Yesterday at 08:29 PM
New in the Gallery:
Desk-mounted "power-board"
Shout Box

Top Posters (30 Days)
Admin 35
HotLine1 20
Trumpy 19
Ruben Rocha 17
gfretwell 15
Who's Online
1 registered (Trumpy), 160 Guests and 11 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#32037 - 12/14/03 02:05 PM no fault
Wirenuttt Offline
Member

Registered: 11/10/02
Posts: 267
Loc: Massachusetts
Has anyone dealt with live stock and required a no fault circuit??

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#32038 - 12/14/03 02:53 PM Re: no fault
Wirenuttt Offline
Member

Registered: 11/10/02
Posts: 267
Loc: Massachusetts
I've heard of a tingle voltage filter but not knowing who makes them makes it hard to find one. Anyone use one of these before?

Top
#32039 - 12/16/03 02:21 AM Re: no fault
sparky Offline
Member

Registered: 10/18/00
Posts: 5545
here's an article on stray voltage & robotic milking.

the jist seems to surround grounding...

Top
#32040 - 12/16/03 07:17 AM Re: no fault
mvpmaintman Offline
Member

Registered: 09/15/03
Posts: 113
Loc: Manhattan, Kansas, USA
My personal experience is limited to backing onto a hot wire fence. LOL I dont recommend it to any one.

But seriously, if the cows are balking at the milking pen, have you checked your grounding and bonding?

Top
#32041 - 12/16/03 12:55 PM Re: no fault
sparky Offline
Member

Registered: 10/18/00
Posts: 5545
is there a gfi-like device that could be used to indicate under the normal 4-6ma?

Top
#32042 - 12/18/03 03:46 PM Re: no fault
Wirenuttt Offline
Member

Registered: 11/10/02
Posts: 267
Loc: Massachusetts
I found an answer for the tingle affect. I guess what was happening is the cows were getting tingled from the water bin. There's a hot water tank fead from a sub panel. According to the gentleman I spoke with who happens to be a ferensic engineer on grounding. He said to drive a ground rod under the sub panel and drive a rod under the water bin. Attach with #6 at each location. Test it with a volt meter. PLace the setting on DC volts, run a lead from ground point at bin to sub ground and read if any stray voltage is present. It should be illiminated.

[This message has been edited by Wirenuttt (edited 12-18-2003).]

Top
#32043 - 12/19/03 08:27 AM Re: no fault
Roger Offline
Member

Registered: 05/18/02
Posts: 1779
Loc: N.C.
I'm not familiar with a "no fault" circuit, but there may be some info here

Roger

Top


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals