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#163048 - 04/29/07 06:36 PM Nasty Fire Video
Zapped Offline
Member
Registered: 10/01/02
Posts: 481
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
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#163050 - 04/29/07 06:48 PM Re: Nasty Fire Video [Re: Zapped]
frenchelectrican Offline


Member
Registered: 02/06/03
Posts: 938
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
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#163054 - 04/29/07 07:57 PM Re: Nasty Fire Video [Re: frenchelectrican]
JCooper Offline
Member
Registered: 12/30/02
Posts: 229
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
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#163056 - 04/29/07 09:03 PM Re: Nasty Fire Video [Re: JCooper]
Celtic Offline
Member
Registered: 02/26/05
Posts: 367
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
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#163068 - 04/30/07 06:21 AM Re: Nasty Fire Video [Re: Celtic]
Zapped Offline
Member
Registered: 10/01/02
Posts: 481
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?
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#163073 - 04/30/07 08:27 AM Re: Nasty Fire Video [Re: Zapped]
caselec Offline
Member
Registered: 04/14/02
Posts: 557
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.
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#163078 - 04/30/07 09:22 AM Re: Nasty Fire Video [Re: caselec]
gfretwell Online   content


Member
Registered: 07/20/04
Posts: 9066
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.
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Greg Fretwell
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#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.
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JRaef
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