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 management. During his inspection of the damage in Kaohsiung, Premier Jiang Yi-huah, ordered the Taiwanese national flag to be flown at half-mast for three days starting 5 August to commemorate the victims of the gas explosions and also the TransAsia Airways Flight 222 crash a week before in Penghu County. Vice Premier Mao Chi-kuo said during the rescue and relief effort works that public utilities companies would work hard to resume power and water supplies within three to five days. Taiwan Power Company said that power supply to about 3,900 households in less-affected areas should resume in two days, while