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
As Good as I Once Was has since become one of Keith's signature songs, as well as one of his most successful. The narrator, a man approaching or in middle age and apparently sitting in a bar, is put into situations that test his masculinity. Having outlived his glory days, he insists he now is no longer "as good as (he) once was" in his younger days, but although he no longer has the stamina to do what he used to do all the time, he can still be "as good, once, as (he) ever was." Examples given include a set of twins who want to