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

Topic Options
Rate This Topic
#163048 - 04/29/07 06:36 PM Nasty Fire Video
Zapped Offline
Member
Registered: 10/01/02
Posts: 482
Loc: Huntington Beach, CA, USA
Apparently, this is all caused by the downed power line you see at the beginning of the video. Not what we wanna see, ever.

http://www.liveleak.com/view?i=87b_1177809849
Top
Work Gear for Electricians and the Trades
#163050 - 04/29/07 06:48 PM Re: Nasty Fire Video [Re: Zapped]
frenchelectrican Offline
Member
Registered: 02/06/03
Posts: 939
Loc: Wi/ Paris France { France for ...
shocked now that cooking there i can see why the fire dept have to wait until the poco kill the power to get that fire out that pretty instene there

Merci, Marc
_________________________
Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)

Top
#163054 - 04/29/07 07:57 PM Re: Nasty Fire Video [Re: frenchelectrican]
JCooper Offline
Member
Registered: 12/30/02
Posts: 228
Loc: Kendall Park, NJ USA
Is there any reason the OCPD did not open, even if it is on the POCO side? That seemed to be a pretty big fault
Top
#163056 - 04/29/07 09:03 PM Re: Nasty Fire Video [Re: JCooper]
Celtic Offline
Member
Registered: 02/26/05
Posts: 361
Loc: NJ
That video is from 2004.

I was able to just barely read the sign at about 4:09 ....Aldo's

That was a nightclub in Lyndhurst, NJ

Here is the accompaning story:
Fire destroys Lyndhurst nightspot
http://www.northjersey.com/page.php?qstr...UVFeXk2NTY2OTkw
_________________________
~~ CELTIC ~~
...-= NJ =-...
Top
#163068 - 04/30/07 06:21 AM Re: Nasty Fire Video [Re: Celtic]
Zapped Offline
Member
Registered: 10/01/02
Posts: 482
Loc: Huntington Beach, CA, USA
Thanks for the added info Celtic.

And yes Cooper, that's my question exactly. This went from a nasty arc to a devestaing fire. Isn't the job of an overcurrent device specifically to avoid fires and protect the installation? This is obviously a massive failure all the way around.

Any linemen in here know why this happened, and what was supposed to happen when the line fell?
Top
#163073 - 04/30/07 08:27 AM Re: Nasty Fire Video [Re: Zapped]
caselec Offline
Member
Registered: 04/14/02
Posts: 558
Loc: San Jose, CA
Quote:
The fire spread to the electrical system, which set off a series of explosions.


From the article it sounds like the fire is what caused the electrical arcing. I’m guessing that the fire melted the insulation on the service conductors feeding the building.
_________________________
Curt Swartz
Top
#163078 - 04/30/07 09:22 AM Re: Nasty Fire Video [Re: caselec]
gfretwell Offline


Member
Registered: 07/20/04
Posts: 9036
Loc: Estero,Fl,usa
Service conductors essentially have no overcurrent protection. On my street we have 3 transformers feeding a 120/240 "bus" that serves about 10 houses. If overall demand is low you could see virtually all of that power in one SE fault. I doubt you could ever blow a primary fuse.
_________________________
Greg Fretwell
Top
#163169 - 05/02/07 09:33 PM Re: Nasty Fire Video [Re: gfretwell]
jraef Offline
Member
Registered: 07/21/04
Posts: 93
Loc: San francisco, CA, USA
As spectacular as that arc fire looked, the fact that it was continuing to arc instead of blowing up was indicative of it being a high resistance ground fault. That would explain why the SCPD did not clear it; it wasn't pulling sufficient current to blow the fuses or trip the breaker. That video makes a great argument for arcing ground fault detection devices.
_________________________
JRaef
Top

Member Spotlight
Member Since: 01/22/05
Posts: 5316
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
0 registered (), 121 Guests and 10 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 51
HotLine1 43
gfretwell 17
Trumpy 16
Ruben Rocha 13
 
Newest Members
clee512, Jdscott2005, FAIZAN, Regitest2, sureshazhagai

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