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#165606 - 07/01/07 01:13 PM 2000 Amp Service  
Admin  Offline

Joined: Oct 2000
Posts: 3,458
submitted by Alan Nadon:
This is the C.T. (current transformer) and metering for a new 2,000 amp service. Underground feed.

[Linked Image]

This is the second picture inside the C.T. cabinet. The only wires are the utility company supply lines nothing else has been installed.

[Linked Image]

This is a close up of where the arc fault from the wires cut a hole in the bottom corner of the C.T. cabinet when someone mistakenly closed the links at the transformer.

Bad news .......cabinet damaged
Good News......... nobody got hurt.

Have a great weekend and fourth of July.

Alan Nadon

[Linked Image]

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#165622 - 07/01/07 07:04 PM Re: 2000 Amp Service [Re: Admin]  
CTwireman  Offline
Joined: Feb 2002
Posts: 840
Connecticut, USA
I bet the line mechanic got a good scare from that one!


#165625 - 07/01/07 07:39 PM Re: 2000 Amp Service [Re: CTwireman]  
LoneGunman  Offline
Joined: Oct 2005
Posts: 141
In my opinion you should not leave untaped wires if one side can possibly be energized.

#165643 - 07/02/07 06:57 AM Re: 2000 Amp Service [Re: LoneGunman]  
resqcapt19  Offline
Joined: Nov 2000
Posts: 2,148
How do you get 2000A in a single 4"? Why is there blue tape on the identified conductor?


#165657 - 07/02/07 11:11 AM Re: 2000 Amp Service [Re: resqcapt19]  
Alan Nadon  Offline
Joined: Mar 2005
Posts: 399
Elkhart, IN. USA
The identified conductor is being used as a phase conductor. The blue tape is to keep someone from thinking that it is the grounded/neutral leg.
The equipment inside (not installed) will be rated for 2,000 amp. The POCO sizes their conductors for the expected load.
The lineman is probably still seeing spots.

If it was easy, anyone could do it.

#165658 - 07/02/07 01:30 PM Re: 2000 Amp Service [Re: Alan Nadon]  
resqcapt19  Offline
Joined: Nov 2000
Posts: 2,148
It looks like there are 3 phase conductors and an identified condutor. Why would the identified conductor have to be used as a phase conductor?


#165664 - 07/02/07 03:54 PM Re: 2000 Amp Service [Re: resqcapt19]  
scameron81  Offline
Joined: Feb 2004
Posts: 75
Healdsburg, ca, USA
It looks like the black conductor in the back is smaller than the other three. That is probably why they used the striped one as the 3rd leg. It looks like they used their standard single phase UG triplex and threw in another smaller conductor for the grounded conductor.

#165696 - 07/03/07 01:26 PM Re: 2000 Amp Service [Re: scameron81]  
EV607797  Offline
Joined: Oct 2006
Posts: 745
Fredericksburg, VA, USA
That's what they do around here too. Our local power company uses 1/0 aluminum for up to a 400 amp service, so I am not surprised to see such small conductors in this application.


"But the guy at Home Depot said it would work."

#165702 - 07/03/07 03:40 PM Re: 2000 Amp Service [Re: EV607797]  
frenchelectrican  Offline
Joined: Feb 2003
Posts: 939
Wi/ Paris France { France for ...
it pretty much sum up with UG wires our POCO do pretty much the same as well here we used 1/0 AL for 400 amp service but go 600 amp they used paralled 1/0's and majorty of them used bundled triplex and they useally dont stock not too many quadplex unless unuseally large service.

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

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Anaheim, CA. USA
Posts: 2,708
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