New Test for Evaluating the Flame Resistance of Conveyor Belt.

摘要

A conveyor belt fire presents a serious safety hazard in an underground coal mine. To combat the conveyor belt fire hazard, the 1969 Federal Coal Mine Health and Safety Act specified that on and after March 30, 1970, all conveyor belting acquired for use in underground coal mines shall be flame resistant. The '2G' small-scale flame test accomplished its original purpose of removing very flammable natural rubber and other nonfire-resistant conveyor belts from underground coal mines. However, the more recent coal mine fire history of conveyor belts and test data from large-scale fire tests on conveyor belts indicates the need for an improved approval test to further reduce the fire hazard of conveyor belts used in underground coal mines.