Mine safety in coal mines, which in turn can initiate more extensive coal dust explosions. For this reason, rock dusts such as limestone dust are spread throughout coal mines to diminish the chances of coal dust explosions as well as to limit the extent of potential explosions, in a process known as rock dusting. Coal dust explosions can also begin independently of methane gas explosions. Frictional heat and sparks generated by mining equipment can ignite both methane gas and coal dust. For this reason, water is often used to cool rock-cutting sites. Miners utilize equipment strong enough to break through extremely hard
2014 Kaohsiung gas explosions and Kaisyuan Roads. Taiwan Area National Freeway Bureau also closed the northbound exit from Sun Yat-sen Freeway to Sanduo Road. However, Kaohsiung MRT and buses were not affected by the search and rescue works. To help the city in the rescue efforts, at 22:30 on Friday night the Taiwan Power Company (Taipower) shut down their four sets of generators fed with liquid natural gas, even though none of their pipelines had been damaged during the explosions. The shutdown lowered Taiwan's total electricity output by 1,100 MW, or about 2.7% of the total capacity. The decision to stop the supply was