ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Al Hildenbrand - Minneapolis - obituary
by Bill Addiss - 02/03/23 07:38 PM
Violation?
by renosteinke - 01/27/23 09:52 PM
Does NEC 551.71 (F) apply to dwellings?
by BigB - 01/20/23 10:46 AM
Power submeter connections
by HotLine1 - 01/19/23 09:09 AM
New in the Gallery:
Burger King crown sillyness
Burger King crown sillyness
by wa2ise, December 11
240/208 to a house
240/208 to a house
by wa2ise, October 9
Who's Online Now
1 members (Scott35), 83 guests, and 17 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Oct 2000
Posts: 3,672
Likes: 2
Admin Offline OP
Administrator
Member
Quote
I went to troubleshoot a tripped breaker, and after taking all the load off of the circuit and putting on one lite at a time, I still could not narrow it down to any one thing. I did find that someone had used a ground for a neutral for the return of about 4amps for some lites(It was done so the homeowner would have a 3way) After about 3 hrs of tracing each wire, this is what was found in a boxed out a/c return.

- richard
[Linked Image]

[Linked Image]

[Linked Image]

Joined: May 2004
Posts: 697
D
Member
From the second picture it looks like a nail pierced the NM. Is this what you think happened?

Dave

Joined: Aug 2003
Posts: 99
Member
Yes, or a staple. There was a staple next to it. I might have smelled it burning, but the heat was set at about 80, and the return was constantly pulling the air in. They are really lucky.

Joined: May 2004
Posts: 162
C
Member
Was that a bed room circuit????

Charlie

Joined: Aug 2003
Posts: 99
Member
It was in the dining room wall, they had a pipe on the secound floor burst, and the water made its way to the hole in the wire. As the connection between the hot and the ground/neutral was made, the wire heated and the breaker tripped.I think the water could have bubbled, and thats why it took so long to trip.


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
 
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
The Watt Doctor
The Watt Doctor
Humble, TX
Posts: 440
Joined: December 2001
Top Posters(30 Days)
triple 3
BigB 3
Popular Topics(Views)
303,186 Are you busy
232,187 Re: Forum
216,928 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5