The two different media types can be kept separate—by bringing the fiber up the tower or along the rooftop in one cable sheath and using a separate cable running in parallel to support the power—or the power and fiber can be combined into one compact cable. My original plan was to trench new conduit and run CAT8, but given that the existing run is all "customer side" and installed by the former. General Consideration: It is generally not recommended to run fiber optic cables in the same conduit as electrical power cables. This is due to several potential risks and complications that can arise from such an arrangement. Electrical Interference: Electrical cables can produce electromagnetic. "When setting up a new communication network or electrical system, one common question arises — can fiber optic cables and power cables run together?" "The answer is yes, they can — but only when certain safety and technical guidelines are followed. " "Fiber optic cables are different from copper. Note: Since it is optical fiber, there is no problem with electrical interference. For more information, reference the EIA/TIA 568A Spec and the IEEE 802. As a result of my own stupidity I forgot to put a conduit for data to my home office. My office is in a part of the building.