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NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces

2023 NFPA 262 Standard - Current Edition
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  • Description

    Access the most current test method to help make more accurate assessments of smoke and fire spread in plenums.

    NFPA® 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, is a vital resource for testing labs to help improve fire safety and ensure compliance. The 2023 edition presents the most current test procedures for evaluating the potential for fire spread along cables and wires housed in a plenum or other environmental space.

    Changes to the 2023 edition of NFPA 262 include:

    • Editorial corrections for improved accuracy
    • Updated references throughout
  • Table of Contents (2023 Current Edition)

    NFPA® 262 Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, 2023 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Application.
    1.4 Units.
    1.5 Summary of Test Method.
    Chapter 2 Referenced Publications
    2.1 General.
    2.2 NFPA Publications. (Reserved)
    2.3 Other Publications.
    2.4 References for Extracts in Mandatory Sections. (Reserved)
    Chapter 3 Definitions
    3.1 General.
    3.2 NFPA Official Definitions.
    3.3 General Definitions.
    Chapter 4 Test Apparatus
    4.1 Fire Test Room.
    4.2 Fire Test Apparatus.
    4.3 Fire Test Chamber Airflow System.
    4.4 Ladder Cable Tray.
    4.5 Fire Test Chamber Temperature Measurement Instruments.
    4.6 Data Acquisition Equipment.
    Chapter 5 Test Specimens
    5.1 Specimens.
    Chapter 6 Maintenance and Calibration of Test Equipment
    6.1 Maintenance.
    6.2 Frequency of Calibration.
    6.3 Airflow.
    6.4 Smoke Measurement System Calibration Test.
    6.5 Fuel.
    6.6 Uncoated Fiber-Reinforced Cement Board Test.
    Chapter 7 Test Specimen Preparation
    7.1 Specimen Conditioning.
    7.2 Determination of Specimen Diameter.
    7.3 Number of Cable Lengths.
    7.4 Cable Mounting.
    Chapter 8 Test Procedure
    8.1 Procedure.
    8.2 Exhaust Duct Velocity Measurement Calculations.
    Chapter 9 Post-Test Cleanup and Inspection
    9.1 Debris.
    9.2 Windows.
    9.3 Supports.
    9.4 Damaged Boards.
    9.5 Preparation for Next Test.
    9.6 Cleanliness of Smoke Measurement System.
    Chapter 10 Calculations
    10.1 Optical Density of Smoke.
    10.2 Exhaust Duct Velocity Measurement Calculations.
    Chapter 11 Report
    11.1 Data.
    Chapter 12 Precision and Bias
    12.1 Applicability.
    Annex A Explanatory Material
    Annex B Smoke and Heat Release Measurements
    Annex C Smoke Measurement System and Chamber-Brick Configuration: Detail Drawings
    Annex D Standard Reference Cable Test
    Annex E Informational References
  • Prior Editions

    2019 Edition

    Make more accurate assessments of smoke and fire spread in plenums using the test method presented in NFPA 262.

    Referenced by both NFPA 90A, Standard for the Installation of Air-Conditioning and Ventilating Systems, and NFPA 70®, National Electrical Code®, and vital for testing labs, NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces, presents a test procedure to evaluate the potential for fire spread along cables and wires housed in a plenum or other environmental space.

    The test method lets you measure and record both flame travel distance and optical density of smoke for:

    • Electrical wires and cables that are insulated, jacketed, or both
    • Optical fiber cables for installation in plenums and other spaces used to transport environmental air without being enclosed in raceways

    Annexes include a wealth of helpful information on topics such as smoke and heat release measurements and standard reference cable test. (Print, 42 pp., 2019)

     

    2015 Edition

    Work with the latest criteria in NFPA 262 for accurate assessments of smoke and fire spread.

    NFPA 262, Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces presents a test procedure to evaluate the potential for fire spread along cables and wires housed in a plenum or other environmental space.

    Vital for testing labs, the test method measures and records both flame travel distance and optical density of smoke for:

    • Electrical wires and cables that are insulated, jacketed, or both
    • Optical fiber cables for installation in plenums and other spaces used to transport environmental air without being enclosed in raceways

    The 2015 edition is up-to-date with all referenced codes and standards.

    Apply the 2015 NFPA 262 to improve fire safety. Annexes include a wealth of helpful information on topics such as smoke and heat release measurements and standard reference cable test. (Softbound, 30 pp., 2015)

     

    Interested in other editions of NFPA 262? Use the drop down menu above to select the edition year you need.

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