Electrical equipment in hazardous areas the participation of operations, maintenance, safety, electrical and instrumentation professionals, the use of process diagrams and material flows, MSDS and any pertinent documents, information and knowledge to determine the hazards and their extent and the countermeasures to be employed. Area classification documentations are reviewed and updated to reflect process changes. Soon after the introduction of electric power into coal mines, it was discovered that lethal explosions could be initiated by electrical equipment such as lighting, signals, or motors. The hazard of fire damp or methane accumulation in mines was well known by the time electricity was introduced, along with the
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