ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Back From Retirement
by BigB - 08/15/22 08:36 PM
Upside Down ThreeWay
by gfretwell - 08/12/22 12:30 AM
Load Calcs for EVs and RVs
by gfretwell - 08/12/22 12:24 AM
Wiring method choice
by HotLine1 - 08/10/22 03:39 PM
NEC- 314.23 (H) (1)
by renosteinke - 08/10/22 11:13 AM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 32 guests, and 12 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Oct 2000
Posts: 3,671
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
 

* * * * * * *

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

 

Member Spotlight
Samurai
Samurai
Fl.
Posts: 46
Joined: May 2007
Top Posters(30 Days)
BigB 6
Popular Topics(Views)
295,022 Are you busy
226,690 Re: Forum
211,860 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5