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Need help determining wire size, wire type, and conduit size…

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Need help determining wire size...
Need help determining wire size, wire type, and conduit size for 200amp panel with a 200 amp subpanel. Here is a list of my questions: http://mnjustin.com/diagram.jpg
Submitted: 6 months ago.Category: Electrical
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Answered in 1 minute by:
8/15/2017
Electrician: Mike G., Master Electrician replied 6 months ago
Mike G.
Mike G., Master Electrician
Category: Electrical
Satisfied Customers: 8,039
Experience: Proven Professional 49 years Experience
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Hi, I'm Mike and I'll be assisting you. Please stand by while I review your question.

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Electrician: Mike G., Master Electrician replied 6 months ago

Is this residential or commercial? Send the diagram.

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Customer reply replied 6 months ago
residential. Can you see the diagram on this link: http://mnjustin.com/diagram.jpg
Electrician: Mike G., Master Electrician replied 6 months ago

Attach the diagram to your message.

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Electrician: Mike G., Master Electrician replied 6 months ago

Meter to main service panel- 2 inch PVC with 2-4/0 & 1-2/0 aluminum THHN or URD.

Main service panel needs a lug kit not a sub panel breaker. They never allow on of that size. The alternative is a disconnect separate from the panel. #4 copper ground wire.

Sub feed 2 1/2 inch PVC with 4/0 URD 4 CONDUCTOR. Ground #4 copper.

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Customer reply replied 6 months ago
is URD 4 CONDUCTOR permitted if part of the run from the main panel to the sub panel is in a building?
Electrician: Mike G., Master Electrician replied 6 months ago

Yes it is.

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Customer reply replied 6 months ago
2-4/0 & 1-2/0 aluminum from masthead to meter: what type of wire?
Electrician: Mike G., Master Electrician replied 6 months ago

Use the URD or a THWN. The W means the insulation is suitable for wet enviorment. Any wiring outside is wet enviorment.

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Customer reply replied 6 months ago
URD 4 CONDUCTOR: does that mean 4/0, 4/0, 4/0, 2/0?
Electrician: Mike G., Master Electrician replied 6 months ago

For the sub feed, yes.

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Customer reply replied 6 months ago
Main service panel needs a lug kit not a sub panel breaker. Does this mean that the hots from the URD 4 CONDUCTOR for the subfeed does not connect to a breaker in the main panel?
Electrician: Mike G., Master Electrician replied 6 months ago

Never saw a panel that would allow a breaker for a sub feed that big. The lug kit looks like a breaker without a switch. It plugs in and makes the main breaker the breaker protecting the sub feed.

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Electrician: Mike G., Master Electrician replied 6 months ago

The panel label will show breaker limits.

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Customer reply replied 6 months ago
something like this?: http://www.homedepot.com/p/Siemens-Sub-Feed-Lugs-for-150A-225A-Load-Centers-ECLK2225/207050664
Electrician: Mike G., Master Electrician replied 6 months ago

That's it.

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Customer reply replied 6 months ago
are there any options that leave me the option to shut off power to the subpanel from the building with the main panel in it?
Electrician: Mike G., Master Electrician replied 6 months ago

The main breaker will shut off both panels. The other option is to install a disconnect and junction to feed both panel mains.

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Customer reply replied 6 months ago
Ground #4 copper: stranded or solid?
Electrician: Mike G., Master Electrician replied 6 months ago

Stranded.

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Electrician: Mike G., Master Electrician replied 6 months ago

One more thing. You'll need to install a ground bridge between the double rods and the panel on the #4 copper. It is for grounds on phone, cable TV etc.

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Customer reply replied 6 months ago
I am struggling to find URD Quadruplex. Do any of these work for the subfeed?
4/0-4/0-4/0-2/0 Black Stranded Al USE MHF Cable
4/0-4/0-4/0-2/0 Gray 3E AL SER Cable
4/0-4/0-4/0-2/0 Grey Stranded Aluminum SER Cable
Electrician: Mike G., Master Electrician replied 6 months ago
Try an electrical supply house. Geaybar, Menards are 2. You won't find it at a home center.
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Electrician: Mike G., Master Electrician replied 6 months ago

It is available on Amazon.

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Customer reply replied 6 months ago
100' Aluminum URD wake 4/0 4/0 4/0 2/0 Cable Direct burial Wire XLP USE ???
Customer reply replied 6 months ago
do I need to install this wire in conduit for the portion of the run inside the building?
Customer reply replied 6 months ago
thanks for all of your help, I appreciate it!!!!
Electrician: Mike G., Master Electrician replied 6 months ago
Anytime, you're welcome.
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