Unshielded twisted pair or UTP cable is a very inexpensive interconnection when compared to a coaxial cable connection. The attenuation characteristics of the UTP are an order above those of coaxial ...
A thin-diameter wire (22 to 26 gauge) commonly used for telephone and network cabling. The wires are twisted around each other to minimize interference from other twisted pairs in the cable. Alexander ...
It's perfectly safe to run Cat5 parallel to power lines (or any other EMI source). The twisting of the wire pairs cancels out almost all interference.