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 neighborhoods. One resident claimed that he had notified city authorities prior to the explosion when he smelled a gas odor near his apartment. However, authorities told him that the situation was under control and had been declared safe after police and firefighters arrived at the scene. Kaohsiung city authorities responded to these criticisms by saying that had residents been evacuated prior to the explosions, there may have been even more fatalities, since most of the injured or dead were those on the roads at the time of the incidents. According to Taipower, staying indoors was the best precaution that could