NFPA 262-2019 PDF Download

NFPA 262-2019 is a standard method of testing the flame travel and smoke produced by wires and cables used in air-handling spaces. This test method provides a means to accurately assess the potential for fire spread along cables and wires in plenums or other environmental spaces. It is referenced by important standards such as NFPA 90A and NFPA 70 (National Electrical Code) and is essential for testing labs.

The test method allows for the measurement and recording of both flame travel distance and optical density of smoke for various types of wires and cables, including those that are insulated, jacketed, or both. It also includes optical fiber cables designed for installation in plenums and other air-handling spaces without the need for raceways.

The standard includes helpful annexes that provide additional information on topics such as smoke and heat release measurements, as well as a standard reference cable test.