北美燃燒分類

單根燃燒:

水平燃燒: FT2/FH/ Horizontal Flame

-垂直燃燒: FT1 , VW-1/FV-2, FV-1, Burning particles (dropping)

成束燃燒(大規(guī)模燃燒):

Vertical tray flame tests:

Method 1 - Vertical tray ( UL1685 FLAME EXPOSURE，代表線型CM )，

Method2 - FT4 (代表線型CMG)

UL1666 - Flame Propagation Height of Electrical and Optical-Fiber

Cables Installed Vertically in Shafts (代表線型CMR)

NFPA 262 - FT6 Plenum (代表線型CMP)

載電流燃燒: FT5,針對(duì)Portable cables

低煙: ST1 Limited smoke (與FT4或CM燃燒同時(shí)進(jìn)行)