Dead short pics

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KevinVost

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Since everyone loves STV, I found this gem while looking for something else. This was done by a licensed JW and his helper. I was simply stunned when we opened the panel, then they could not tell me what was wrong with the install. Scared me half to death.
 
Wow...that is scary! I hope it was corrected before the structure burned to the ground.;)

(Article 100 Definition-Ground = Earth)
 
Looks like a single phase why did they split the strands could have reduced(Macadapt) down. Is that a service raceway? Forgot to bond the bushing? What is that ocpd rating? looks like a 200 but can't be sure.
 
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It's a 2 pole 200 A breaker. I think the conductors are 4/0 al. The breaker only accepted 1awg, I think. I have no idea why they did not macadapt. Yes, they split the wiring ("cause it did not fit the breaker") so you have A and B phase together at the breaker. It is a 4 pole breaker arranged ABAB.

It's not a service raceway, however it goes out of the panel in metalic raceway then converts to PVC (our local amendments require a bonding bushing for this install).
 
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KevinVost said:
Greg, a dead short is a slang term we used for a "phase to phase" short. I have to learn not to use slang terms here:grin:
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No problem Kevin I was going to send in the definition of short circuit and ground fault....Yes I was an EC for 20 years before becoming an inspector. I Also, should not have qouted Mac adapt........:smile: Kevin great pictures btw.
 
I have always defined a dead short as a serious, no question about it, trip the breaker now, fault to ground.

I refer to this as a phase to phase short. A phase to phase dead short actually.

This breaker is a main breaker from a Seimans all in one service and is designed to be fed with bus. It is not designed to be used in this application. They really should have thought this through a little more :rolleyes:
 
220/221 said:
I have always defined a dead short as a serious, no question about it, trip the breaker now, fault to ground.

I refer to this as a phase to phase short. A phase to phase dead short actually.

This breaker is a main breaker from a Seimans all in one service and is designed to be fed with bus. It is not designed to be used in this application. They really should have thought this through a little more :rolleyes:
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Do you mean like this?,,

img00015541.jpg
 
I believe that's it but it wouldn't have been a short in that case since it's AA, BB

Got a pic of the back?
 
Looking at the bus configuration above the breaker in the OP's picture and in lieu of the breaker in M.D.'s picture, I do not see a phase to phase short.

Jake-leg termination but no short.
 
jeremysterling said:
Looking at the bus configuration above the breaker in the OP's picture and in lieu of the breaker in M.D.'s picture, I do not see a phase to phase short.

Jake-leg termination but no short.
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That is why I posted it,.. but I'm not sure they are the same breaker ,.. I could not quite read the numbers off the O.P. ...
 
I've added another pic. Sorry for the delay, I thought it was obvious that there was a problem with this install, I had to find the other pic. The top breaker is factory installed with a warning bar and is properly hooked up per the additional fastener requirement for backfed breakers.
 
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