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alecb555's profile

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Thu, Aug 19, 2021 9:06 PM

Underground cable conduit and length

We're doing a new home construction and there is a 300' distance from the att service at the corner of the street (same as corner of the property) to our house (it's a large property). 

We're having trenching done for various other services, so we want to lay a conduit for att right now as well.

Would a 1" conduit work?

Can it share a trench with other services such as water/gas/electric? 

Should we call an att tech out to the site for a consultation or just lay the conduit down?

any input is greatly appreciated, thanks. 

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my thoughts

Employee

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19.3K Messages

1 年前

Conduit with a pull string is a great ideal...

does not need to be as deep as other utilities will need. 

Should have no sharp bends thus a flexible conduit should be used, especially if expected ATT FIBER service, copper can take more of a bend than fiber. 

https://www.fiberoptics4sale.com/blogs/archive-posts/95047814-101-guidelines-for-fiber-optic-cable-installation

Do make every effort to pull cables from a conduit in as straight an angle as possible. Pulling on an angle can cause damage to the cable.

  1. Underground conduits, if newly installed, should be a minimum size of between 1.5″ to 2″. If the run is long, or if you anticipate the possibility of additional future pulls; Then you may want to install a conduit of up to 4″ (or greater).

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spoom2

ACE - Master

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16K Messages

1 年前

Whoever is putting in your conduit make sure the follow the rules for joint trench.  I can't think of anything the phone company would pull that require more than an inch conduit, I don't think there's any requirement, but may want the check the NEC as things constantly change. 

New Member

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3 Messages

1 分钟前

What type of conduit is acceptable for an at&t fiber installation 

800’ buried 

spoom2

ACE - Master

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16K Messages

1 分钟前

The answers are in the topic. This is a user forum so check with your local utility inspector to see if there's any specifications for your area. 800' I'd do as was stated by @my thoughts and use a flexible conduit probably have to buy a 1000' roll, I don't know if they would sell it by the foot or not.  

my thoughts

Employee

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19.3K Messages

1 分钟前

@carl4 

800 feet is a long distance, about 1.25 standard city blocks (660 ft per block)

I would recommend splice cases every 250 to 300 feet resulting in a total of 3 conduits. The longest premade cables are 500 feet, providing the tech is even carrying any of these length.

New Member

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3 Messages

1 分钟前

Is there a specific flexible conduit for burial?

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