Have 400 amp service, need to supply power to 2 office trailers.

1 trailer is 200 amp panel
1 trailer is 125 amp panel

I want to install 200 amp panel with meter to feed the 125 amp panel so we can track usage on it.

How should I connect these panels. Can I run my main service lines to the 200 amp meter panel and then then run the 125amp panel off a 125amp breaker in the meter panel. How would I wire the panel for the 200 amp panel office trailer and how could I splite the service lines. Will ground and nuetrals need to be separate and on what panels

Thanks
James

Power from meter to service disconnect has 2 hot wires. The 2 hots go to the breaker panel and a third wire is grounded inside of the service disconnect to the service disconnect box and runs to the neutral on the breaker panel, the breaker panel has all the nuetrals and grounds together. Is this right or do the ground and nuetrals need to be separated? Is the neutral OK since this wire is just going from ground in the disconnect to the panels neutral?


Thanks

Quote:

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Originally Posted by toireht

have 400 amp service, need to supply power to 2 office trailers.

1 trailer is 200 amp panel
1 trailer is 125 amp panel

I want to install 200 amp panel with meter to feed the 125 amp panel so we can track usage on it.

how should i connect these panels. can I run my main service lines to the 200 amp meter panel and then then run the 125amp panel off a 125amp breaker in the meter panel. how would I wire the panel for the 200 amp panel office trailer and how could i splite the service lines. will ground and nuetrals need to be seperate and on what panels

thanks
james

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James - You really need a Licensed Electrician for this type of work.

Before you get too far ahead of yourself. 1) I can't follow. 2) You won't be able to find a 125A breaker for a 200 A panel (100 A max), 3) You can split into multiple disconnects with the right service entrance equipment 4) You can do electronic sub metering.

Quote:

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Originally Posted by Bradley46

James - You really need a Lisenced Electrician for this type of work.

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I agree!
Commercial work is NOT DIY work.

Need to run 2ea. 100 amp panels off 200 amp service. I want to install a 200 amp disconnect that has 2 100 amp breakers in it. Then I want to go off one 100 amp braker to an 100 amp panel. The other 100 amp breaker will go to a meter panel and then to a 100 amp panel. How would my nuetrals and ground connect in each panel and grounding rods would be required at each panel? Can I use 2/0 to the 200 amp disconnect and #2 to the panel and meter and panel?


Thanks

Looks like you are being addressed here [Note: I can see you changed your question. When I get a chance I'll look over it]:
https://www.askmehelpdesk.com/electr...ls-253094.html

See Midwest Electric Products, Inc. for SE equipment. A ground rod would be installed at the disconnect/meter. If thiese are detached structures, then a ground rod would be required at each 100 A panel. Grounds and neutrals would remain separate and isolated at the sub-panels.

Distance and wire material (copper/aluminum) are required parameters to size the feeders for less than 3% voltage drop.

There is a sticky at the beginning of this secion on how to read the NEC code for free. No printing, No searching.

Nice try toireht.

This is STILL commercial work and you should NOT be touching it considering the questions you are asking!!

Do the right thing here. Hire an electrician!

Yeah, it seems to be out of the scope of work for a normal DIY.

This is not commercial, I purchased two office trailer at an auction and will be putting these on my property. One will be used for a game room and the other for my daughter to stay in when she comes home from college on breaks. Any info would be appreciated

Thanks
James

Can you look at my post: https://www.askmehelpdesk.com/electr...ls-253617.html

This is not commercial, I explained this on an additional post on the above post

Thanks
James

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