[TowerTalk] A dumb question

[jimlux]

On 8/26/17 6:51 PM, chuck.gooden wrote:
>
>
> When i installed the electical for my pool the city wanted the conduit down 18 inches and this is in northern Illinois.  If it was me I would put the coax in some pvc too.
> Chuck Gooden - K9LC
>

the electical code (which varies, check your local AHJ - authority 
having jurisdiction) has a variety of depth requirements - I don't 
recall one for frost line, but 18" is if it's in dirt, you can go 
shallower if there is concrete over the top (e.g. it's under a sidewalk 
or patio).

The origin of the requirement in the code is to prevent accidentally 
digging into it, and I guess they figure if you're digging more than a 
few inches, you'll have called to have your utilities located, etc.

One common strategy (not necessarily to code) for shallow burial is to 
lay the wire or conduit in the shallow trench, and then lay concrete 
tiles or a 2x4 or something over the top, then back fill.  At least your 
shovel will hit something before chopping your wires off.



> -------- Original message --------
> From: N4ZR <n4zr at comcast.net>
> Date: 08/26/2017  8:28 PM  (GMT-06:00)
> To: TowerTalk <TowerTalk at contesting.com>
> Subject: [TowerTalk] A dumb question
>
> After all this time I'm contemplating my first direct buried run of
> coax.  Hence this qwuestion - how deep is deep enough?  DoI need to get
> below the frost line?
>