running cat6s inside plastic conduit with 120v

Discussion in 'Electrical Forum discussion & Blog' started by cmozment, Feb 19, 2011.

  1. cmozment

    cmozment New Member

    Messages:
    1
    Location:
    Tuscaloosa, AL
    I have an underground (in concrete) 1" grey PVC line that runs about 30 feet. After it runs under the concrete and up the wall into my drop in ceiling it connects to a metal conduit box that then runs to my panel.

    The PVC line has three 12ga insulated solid copper lines (black, white and green) for power to a computer in our sales area. Is there any way to run a network line (cat 5 or prefer cat6 sheilded) in the same PVC as the 120v.

    I read somewhere that it could be done but I would need to attach the shielding from the cat 6 to the same ground as the power to keep the interference at bay. I could do this by running the wire in the PVC and then attaching the sheilding to the metal box in the ceiling.

    I want this to be safe, but it would be very expensive to tear up the concrete-marble etc to have a second run of conduit.

    Any thoughts or comments much appreciated.
  2. LLigetfa

    LLigetfa DIYer, not in the trades

    Messages:
    3,922
    Location:
    NW Ontario, Canada
    I would run outdoor gel filled rodent resist and ground the rodent metal shield. I buy mine from Anixter.

    SUPERIOR C 04-003-55
    24-4P OUTSIDE PLANT CABL CAT5E
    DOUBLE JACKET FILLED CABLE
    BURIAL RODENT RESIST
  3. jwelectric

    jwelectric Electrical Contractor/Instructor

    Messages:
    2,532
    Location:
    North Carolina
    No. It would need to have the same insulation rating as the line voltage in order to share the same raceway
  4. thassler

    thassler New Member

    Messages:
    106
    Location:
    Tennessee
    Belden makes a Cat5e wire that is 600V AWM-rated. I've been allowed to run that in the same conduit as line voltage in the past. Never over 3ft however. Running data wire parallel with line voltage for 30ft is not a good idea even if it is shielded. In situations like that I've run fiber optic and used fiber transcievers to convert the mediums.
  5. LLigetfa

    LLigetfa DIYer, not in the trades

    Messages:
    3,922
    Location:
    NW Ontario, Canada
  6. LLigetfa

    LLigetfa DIYer, not in the trades

    Messages:
    3,922
    Location:
    NW Ontario, Canada
    Only problem... I don't think the OP would fit pre-connectorized fibre through the 1" conduit. He could cut it and then rent a fusion splicer or send me return airfare and I'll bring mine.
  7. david_griffin

    david_griffin New Member

    Messages:
    25
    Location:
    Denver, CO
    This is always a risky business to put power cables in parallel with almost not insulated cables. I would avoid it.
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