FT6 Horizontal Flame & Smoke Test — per C.S.A. C22.2 No. 0.3-92 Appendix B

Products passing the FT6 Horizontal Flame and Smoke Test are designated FT6 in the column where the trade number appears. This test is for cables which must pass a Horizontal Flame and Smoke Test in accordance with ANSI/NFPA Standard 262-1985 (UL-910). The maximum flame spread shall be 1.50 meters (4.92 ft.). The smoke density shall be 0.5 at peak optical density and 0.15 at maximum average optical density.

Limiting Oxygen Index (LOI) The minimum concentration of oxygen (as a percent of volume) that will support flaming combustion. Oxygen concentration in ambient air is 21%, and materials with an oxygen index above 21% will tend to be more resistant to fire than those below.

source : You are not allowed to view links. Register or Login