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:
Annexes include a wealth of helpful information on topics such as smoke and heat release measurements and standard reference cable test.