UL 2024 PDF

1 Scope

1.1 These requirements cover cable routing assemblies and fittings and communications raceways and fittings in accordance with the NFPA 70, National Electrical Code, NFPA 76, Standard for the Fire Protection of Telecommunications Facilities, and NFPA 90A, Standard for the Installation of Air-Conditioning and Ventilating Systems:

1. a) Plenum – Evaluated for installation in other spaces used for environmental air in accordance with the National Electrical Code, ceiling cavity plenums and raised floor plenums in accordance with NFPA 76 and NFPA 90A as well as riser and general purpose applications.

2. b) Riser – Evaluated for installation in risers in accordance with the National Electrical Code and NFPA 76 as well as general purpose applications.

3. c) General Use – Evaluated for general purpose applications only in accordance with the National Electrical Code and NFPA 76

SUMMARY OF TOPICS

This revision of ANSI/UL 2024 dated November 17, 2021 was issued to incorporate the following changes:

– Revision of Definitions to Correlate with the Definitions in the 2020 NEC; 2.2, 2.3 and 2.4

– Specific Gravity of Materials; 10.1