Plenum cable is
cable that is laid in the
plenum spaces of buildings. In the
United States,
plastics used in the construction of plenum cable are regulated under the
National Fire Protection Association standard NFPA 90A: Standard for the Installation of Air Conditioning and Ventilating Systems. All materials intended for use on wire and cables to be placed in plenum spaces are designed to meet rigorous
fire safety test standards in accordance with NFPA 262 and outlined in NFPA 90A.