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Not Art…But Clean

1001 Views 21 Replies 13 Participants Last post by  MotoGP1199
Working on a nice job where I am at the same place, and I really don’t have to answer to anyone. I can just work.

Customer bought the building and now converting it to a production facility. It will have a 2500A 277/480 service when we actually get the gear (April/May). Currently running off a temp 800A 277/480.

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Retired EC and Fuel distribution contractor
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Nice!

I don't remember ever seeing a hinged cover on a NEMA 1 panel enclosure.
 

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Power distribution and controls
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Not to be a nit picker, Where is the ground for the transformer? Steel, water, ground/ufer?
Where is the other LV set of conductors?
I have never been a fan of unfused conductors going very far. To many do over jobs after a fault.

You do nice work, professionalism shows.
 

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Discussion Starter · #13 ·
Not to be a nit picker, Where is the ground for the transformer? Steel, water, ground/ufer?
Where is the other LV set of conductors?
I have never been a fan of unfused conductors going very far. To many do over jobs after a fault.

You do nice work, professionalism shows.
Building steel is barely visible below the greenfield connectors in the XFMR side pic.

There are two 200A feeds leaving the XFMR. One goes to a 200A disco, then to a main lug panel. The other goes to the 200A MB 72 Cir panel. It’s not what I would have done, but that’s what was designed.
 

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Power distribution and controls
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Ya I caught the two feeds. I agree not what I would have done either.
72 circuits on a 200 amp panel. Ouch!
I always have taken all of the grounds to one place. Inside dry types.

Your lucky to work for someone who buys colored conductors. I never have, lots of phase tape for me.

Curiosity makes me ask, were the shipping bolts on the transformer tight?
I have gotten some Eaton dry types made in Juarez Mx that were,,,, finger tight at best.
 

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Discussion Starter · #17 ·
Ya I caught the two feeds. I agree not what I would have done either.
72 circuits on a 200 amp panel. Ouch!
I always have taken all of the grounds to one place. Inside dry types.

Your lucky to work for someone who buys colored conductors. I never have, lots of phase tape for me.

Curiosity makes me ask, were the shipping bolts on the transformer tight?
I have gotten some Eaton dry types made in Juarez Mx that were,,,, finger tight at best.
The shipping brackets securing the core were tight and a PITA to remove. The bolts to the pallet were tight but the pallet was badly damaged as far as I remember.
 

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Looks good! Fwiw, although it’s common trade practice, those bonding
bushings aren’t required.
 
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