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
William Galloway (mining engineer) Galloway had to attend as mining inspector. By 1923 he followed his family tradition by becoming an owner/director of collieries. He became the chairman and a director of the East Kent Colliery Company and director of the Snowdown Colliery. In 1870, Galloway began investigations into the cause of explosions in dry mines, and became convinced that the cause was coal dust as well as fire damp. He was called on, as a mining inspector, to investigate the causes of between 60 and 80 explosions in Scottish mines and it became his life's work to find ways to reduce the risk