A common misconception is that flame-retardant means the cable will not burn. The purpose is to slow fire spread, not eliminate fire . Fire ratings are classification systems used to define how communication cables behave when exposed to fire conditions. Different environments. When you specify or buy fiber cables, the jacket material and fire rating are as important as fiber type and connector. The unique design features extended Fire Resistant properties (XFR) which secure operation during fire test with bending and impact from hammer shock. Its structure is mainly composed of cable core, longitudinal covering a layer of two-sided synthetic mica tape outside cable core, inner sheath packed with ceramic sheathing.
