OH Pole service metercan only. Disconnect mounted outside of structure remotely.

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RICHRICH36

Member
Location
Florida
I cant quite assemble the article numbers and I am second quessing myself but I was hoping someone else could reassure me.

Info
AHJ enforcing 2008 NEC
This is a temporary service for a remediation trailer.

My situation is:
I need to feed a "detached building" which is basically a pull behind trailer with the wheels removed and tied down and approved by building inspection. I need to feed this trailer with a 200A 3 Phase Delta service. This trailer has a permanently affixed 200A disconnect with 150A fuses in it. Trailer only requires a 150a service.

What I want to do:
Mount a 7 terminal 3 phase metercan on a 25' pole. Heres the kicker, I want to mount the metercan only. No disconnecting means at this point. I want to feed the trailer direct buried with 4/0 AL USE wire. At this point I will terminate in the 200A Disconnect which is fused at 150.

What I think I can reference:
Article 230.6 for conductors outside and/or article 240.101(B) for the "feeder tap" rule.

Does anyone have any objective reasons on why I couldnt do this?
 

augie47

Moderator
Staff member
Location
Tennessee
Occupation
State Electrical Inspector (Retired)
It might be worth a call to POCO. Locally none of the power companies would permit that.
 

suemarkp

Senior Member
Location
Kent, WA
Occupation
Retired Engineer
Isn't this like a typical farm setup -- central pole with meter and takeoffs to barn, house, etc? If this is just a meter can, the conductors in and out are all Service conductors. No feeder here. I don't know of an NEC requirement that says you need a disconnect near the meter. It would only be a power company issue as to how near a building the meter must be. Don't know why they'd care.
 

hurk27

Senior Member
Here is it allowed and heres the NEC article that allowes it:

230.70 General.
Means shall be provided to disconnect all conductors in a building or other structure from the service-entrance conductors.

With service conductors that do not enter a building or structure there is no requirement of a disconnect, we must also keep in mind that a meter is just a wide point in the service entrance conductors, so both before and after a meter you still have service entrance conductors.

Now a utility can require a cold sequence meter disconnect, and or require the service disconnect to be located at the location of the meter which in this case can be the pole, but its not an NEC issue. as Augie said check with the serving utility.
 

Smart $

Esteemed Member
Location
Ohio
...

My situation is:
I need to feed a "detached building" which is basically a pull behind trailer with the wheels removed and tied down and approved by building inspection. I need to feed this trailer with a 200A 3 Phase Delta service. This trailer has a permanently affixed 200A disconnect with 150A fuses in it. Trailer only requires a 150a service.

...
What I'm currently wondering is whether the trailer qualifies under one of the Chapter 5 installations, i.e. mobile/manufactured home (not intended as a dwelling unit; 550.4), RV and parks therefor [551.4(A)], or park trailers (Article 552)...???
 
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