ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
twh 10
jraef 4
Recent Posts
Correct rotation, wrong sequence
by Potseal. 05/25/17 11:34 PM
Dryer, Range grounding from "Main" panel
by sparkync. 05/25/17 05:49 PM
210.70 / Wall Switch / When adopted?
by gfretwell. 05/24/17 09:18 PM
Any UL 508 experts out there?
by sparkyinak. 05/23/17 11:04 PM
Heat pump conundrum
by sparkyinak. 05/21/17 08:49 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
236,804 Are you busy
171,826 Re: Forum
164,738 Need opinion
Who's Online Now
0 registered members (), 48 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#122819 - 01/20/06 09:27 PM Q1 Cook Off  
electure  Offline


Member
Joined: Dec 2000
Posts: 4,259
Fullerton, CA USA
Here's a couple of pictures that Lone Gunman took and showed us on the Chat.

The remains of a Square D Q1 2100

These pics were sent to the customer, the owner of the property, who was in another State.

Aah- the value of a digital camera [Linked Image]

[Linked Image]


[Linked Image]


Tools for Electricians:

#122820 - 01/21/06 12:39 AM Re: Q1 Cook Off  
mxslick  Offline
Member
Joined: Oct 2004
Posts: 803
Atomic City, ID USA
Wow. What happened to cause this meltdown? Aren't such failures very rare for SqD products?

Looks like some of the neutrals got damaged as well, 2nd from left and both on the right.

Did this require the whole can (or interior) to be replaced or is that buss tab replacable?


Stupid should be painful.

#122821 - 01/21/06 12:48 AM Re: Q1 Cook Off  
LoneGunman  Offline
Member
Joined: Oct 2005
Posts: 141
Florida
I replaced the whole panel. No idea what caused it to burn up.


#122822 - 01/22/06 12:36 AM Re: Q1 Cook Off  
RODALCO  Offline
Member
Joined: Dec 2005
Posts: 854
Titirangi, Akld, New Zealand
May be a rectifier diode from a full wave bridge failed in a high power dc charger, or other equipment and a dc riple ended up on the mains.
Hence the braker had to interrupt dc and a arc remained for longer than expected?


The product of rotation, excitation and flux produces electricty.

#122823 - 01/31/06 01:01 PM Re: Q1 Cook Off  
InspectorE  Offline
Member
Joined: Oct 2004
Posts: 51
Hudson WI USA
Without any other information, that top breaker looks fried and the bottom one looks ok. Ditto the breaker tabs in the box. Perhaps a high resistance developed in the top breaker. I've had fuses develop a high resistance without going open, the same could probably occur with breakers - even Square D.



Member Spotlight
Potseal
Potseal
Saskatchewan
Posts: 222
Joined: February 2013
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.015s Queries: 14 (0.002s) Memory: 0.7680 MB (Peak: 0.9073 MB) Zlib enabled. Server Time: 2017-05-26 11:17:42 UTC