ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Photocell
by Docholiday. 01/22/18 10:52 AM
AreMetal Ladders Ever OK For Electrical Work?
by gfretwell. 01/22/18 01:15 AM
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 14 guests, and 15 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
A video of an arc blast... #68756
08/16/06 12:55 AM
08/16/06 12:55 AM
mxslick  Offline OP
Member
Joined: Oct 2004
Posts: 803
Atomic City, ID USA
Found THIS very interesting video of a 480 volt arc blast test.

Despite the somewhat unusual test conditions (a solid bolted fault directly on a transformer's terminals, the timed cutoff of the power {you'll hear a "ding" like a microwave saying dinners done}) it would be not too far off from the potential forces in most switchgear, I'd imagine.

Watch this and think about what would have happened if you were standing near that transformer.

The electric dragon spares no one when he decides to breathe fire.....

Please be safe!!!


Edited a few times to fix link...


[This message has been edited by mxslick (edited 08-16-2006).]

[This message has been edited by mxslick (edited 08-22-2006).]

[This message has been edited by mxslick (edited 08-22-2006).]


Stupid should be painful.
Work Gear for Electricians and the Trades
Re: A video of an arc blast... #68757
08/16/06 06:57 AM
08/16/06 06:57 AM
R
RODALCO  Offline
Member
Joined: Dec 2005
Posts: 856
Titirangi, Akld, New Zealand
Thanks for that video clip.

It's amazing how much energy is available, especially at the transformer terminals.

Low resistance connections, maximum fault level available, high PSI and good quality switchgear.

Most good quality BSS HRC fuses are rated to break safely a fault at 80 or 120 kA.

You can see that good quality switchgear and HRC fuses are a must to clear low resistance faults near distribution transformers especially when cable runs are short and are of heavy gauge cable.


The product of rotation, excitation and flux produces electricty.
Re: A video of an arc blast... #68758
08/16/06 07:04 AM
08/16/06 07:04 AM
T
Tiger  Offline
Member
Joined: May 2005
Posts: 706
Crystal Lake, IL USA
Is your email correct RODALCO? I have a question for you, if you don't mind.

Thanks,
Dave
dave@tigerelectrical.com

Re: A video of an arc blast... #68759
08/16/06 08:47 AM
08/16/06 08:47 AM
R
Roger  Offline
Member
Joined: May 2002
Posts: 1,716
N.C.
Thanks Tony. That gets the point across much better than words.

Roger

Re: A video of an arc blast... #68760
08/16/06 03:44 PM
08/16/06 03:44 PM
L
Larry Fine  Offline
Member
Joined: Feb 2005
Posts: 693
Richmond, VA
I can't see it. All I get is:

Forbidden
Remote Host: [my IP address]

You do not have permission to access http://electricsubstationsafety.com/Movies/Test%2024.mpeg

Data files must be stored on the same site they are linked from.

Thank you for using FreeServers

Added: never mind, I got to the directory by lopping off the last part of the URL.

[This message has been edited by Larry Fine (edited 08-16-2006).]


Larry Fine
Fine Electric Co.
fineelectricco.com
Re: A video of an arc blast... #68761
08/16/06 04:15 PM
08/16/06 04:15 PM
togol  Offline
Member
Joined: Sep 2005
Posts: 421
NW In. USA
Larry, I get the same message..... [Linked Image]


Tom
Re: A video of an arc blast... #68762
08/16/06 04:36 PM
08/16/06 04:36 PM
N
NJwirenut  Offline
Member
Joined: Sep 2001
Posts: 806
Bergen County, NJ
Just go here:
http://electricsubstationsafety.com/photo5.html

and click on the appropriate link.

Somehow, a "%20" code got inserted into the posted link in place of a space.

Re: A video of an arc blast... #68763
08/16/06 05:27 PM
08/16/06 05:27 PM
S
SteveFehr  Offline
Member
Joined: Mar 2005
Posts: 1,213
Chesapeake, VA
Heh, I'd posted that very video in the safety forum about 2 weeks ago!

More videos here: http://electricsubstationsafety.com/photo5.html

Re: A video of an arc blast... #68764
08/16/06 08:38 PM
08/16/06 08:38 PM
mxslick  Offline OP
Member
Joined: Oct 2004
Posts: 803
Atomic City, ID USA
Steve:

No wonder!! I was at a loss as to where I first ran into that video, I honestly had thought it was on one of the other sites I browse...major brain flatulence here!!

That's what I get for posting when I'm tired!! [Linked Image]

So a big thanks to SteveFehr for bringing that link to my (stunted) attention!! [Linked Image]


Stupid should be painful.
Re: A video of an arc blast... #68765
08/21/06 09:55 PM
08/21/06 09:55 PM
Theelectrikid  Offline
Member
Joined: Apr 2004
Posts: 810
Levittown, PA
That arc-blast video is shocking at the least! And I don't mean electric shock!

At the end of the first (transformer failure) video, you can just barely hear someone start saying "We need all available en-gines..."


Ian A.

[This message has been edited by Theelectrikid (edited 08-21-2006).]


Is there anyone on board who knows how to fly a plane?
Page 1 of 2 1 2

Featured:

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

 

Member Spotlight
CDS
CDS
Nicholson Ga
Posts: 34
Joined: June 2006
Show All Member Profiles 
Top Posters(30 Days)
Admin 21
Potseal 15
sparky 15
Popular Topics(Views)
243,595 Are you busy
180,393 Re: Forum
170,862 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.042s Queries: 15 (0.007s) Memory: 1.0244 MB (Peak: 1.2001 MB) Zlib enabled. Server Time: 2018-01-22 18:20:22 UTC