FIRE TEST - 20 MINUTES
A bundle of cables is hanged at the height of 3.5 meter vertically. At the bottom of the cables, a propane flame is applied for a duration of 20 minutes. Once the heat source is turned off, the remaining flame on the cables must self-extinguish, leaving the upper part of the cable intact. Thereby proving that the cable does not propagate the spread of the flame. By utilizing cables that meet this test, you prevent a localized fire from extending to other areas through the cable network. Not all cables meet this safety prerequisite.