proximity of power cable to comm. cable

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steve225

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Colorado
Is there a minimum seperation by code when power cable and comm. cable are in the same duct bank? Both cables are in their own conduit. Power is 3 phase, comm. is coax.
 
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bennie

Esteemed Member
Re: proximity of power cable to comm. cable

A duct bank is where ducks keep their money. ;)

NEMA Bulletin No. TCB2 discusses duct arrangements for underground plastic duct.

The interior ducts, in a bank, are called dead ducts,(not a pun) The exterior ducts should be used for heat producing cables.
 
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