Abstract: In order to prevent fires caused by the burning of mining belts and cables, the article used FTT cone calorimeter to test and study their combustion characteristics and analyzed their fire hazard indicators. The combustion characteristics of the belt, cable sheath and cable insulation under 30, 40 and 50 kW/m2 thermal radiation intensity were tested, and an empirical prediction model of heat release rate was established to study the heat release law. The results indicate that the heat release rate curve exhibits power function and exponential function patterns in the rising and falling stages, respectively. The increase in thermal radiation intensity accelerates the thermal decomposition of materials, shortens the combustion reaction process, shortens the ignition time, weakens the fire resistance performance, and increases the fire hazard.

Key words: FTT cone calorimeter, mining belt, mining cables, combustion characteristics, fire hazard