This category covers Type DP data processing cable for use in computer rooms and under the raised floors of computer rooms in ordance with Article 645 ofANSI/NFPA 70,"National Electrical Code."The cable consists of one or more insulated conductors that are covered with a nonmetallic jacket. The cable may contain grounding conductors and/or optical fiber members.

Data processing cable is identified by marking on the jacket or on a marker tape under the jacket. This marking includes one of the following Type designations:

DP-1— Indicates cable rated 600 V in conductor sizes 18 AWG to 1000 kcmil copper or 12 AWG to 1000 kcmil aluminum or copper-clad aluminum. This cable does not spread flame to the top of the tray in the Vertical-Tray Flame Test inANSI/UL 1581,"Reference Standard for Electrical Wires, Cables, and Flexible Cords."