ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Inspection camera help
by petey_c. 09/22/18 07:52 AM
Motion detectors and dimmers
by gfretwell. 09/20/18 04:02 PM
Extension cords
by annemarie1. 09/20/18 08:54 AM
220/230/240V 60Hz Systems
by gfretwell. 09/16/18 12:37 PM
Acronis Backup 2017
by gfretwell. 09/16/18 12:46 AM
New in the Gallery:
Plug terminals
Housebilding DIY wiring
Who's Online Now
0 registered members (), 31 guests, and 21 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Hidden J Box in Attic #166743
07/27/07 03:21 PM
07/27/07 03:21 PM
Admin  Offline
OP
Administrator
Member
Joined: Oct 2000
Posts: 3,516
NY, USA
Quote
Customer lost most of the power on the second floor. Customer had covered the rafters in the attic with 3/4" particle board. Circa 1920's house.

House had been wired in stages - knob & tube, later grey fabric romex (no ground), still later white romex with small ground. Tracer went crazy trying to trace which 4x8 sheet to lift up - finally found this jbox (5 others found - buried under pink stuff and cellulose) - under 7th sheet - fortunately they were all screwed down!

I was taught to twist wires together, making them mechanically sound, and regard the wire nut as a secured insulator - it appeared that these wires were just stuffed in and twisted.......

New run to basement panel.

Grov

[Linked Image]

2017 / 2014 NEC & Related Books and Study Guides
Re: Hidden J Box in Attic [Re: Admin] #166760
07/27/07 10:38 PM
07/27/07 10:38 PM
D
Dave T  Offline
Member
Joined: Jan 2005
Posts: 155
Waukesha, WI, USA
An excellent picture.
Looks as if there was plenty of heating that could have very well resulted in a fire. The metal box did well in containing any arcing and heat. But knowing that it wasn't grounded there was no way that a breaker would have been tripped unless there was a massive line to line fault.

Re: Hidden J Box in Attic [Re: Dave T] #166762
07/28/07 12:18 AM
07/28/07 12:18 AM
A
Ann Brush  Offline
Member
Joined: Dec 2005
Posts: 152
Ohia
Whats that loose screw doing in there?

Re: Hidden J Box in Attic [Re: Ann Brush] #166781
07/28/07 11:21 AM
07/28/07 11:21 AM
Grover  Offline
Member
Joined: Jan 2005
Posts: 109
Sebago, ME, USA
Don't know about the loose screw - that's the way I found it....... box was held in place with 2 sheetrock screws - obviously postdated the fabric romex.
wonder when sheetrock screws came into play?


Featured:

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

 

Member Spotlight
BEAMEUP
BEAMEUP
WA
Posts: 27
Joined: December 2004
Show All Member Profiles 
Top Posters(30 Days)
Admin 13
Trumpy 11
Popular Topics(Views)
249,378 Are you busy
187,310 Re: Forum
176,652 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.015s Queries: 15 (0.003s) Memory: 0.9606 MB (Peak: 1.0925 MB) Zlib enabled. Server Time: 2018-09-22 18:55:15 UTC