is the accumulation of an electrical charge on a
surface as a result of the rubbing together of non-conducting solids or
liquids. The trapped static electricity may be released as a spark toward a
nearby surface with a different charge potential. If the spark occurs in the
presence of an ignitable mixture, such as a flammable concentration of
hydrocarbon vapors or finely divided
particles of dust in air, explosion and fire can result. This phenomenon is
called electrostatic ignition. Many types of industrial activities
can generate static electricity (e.g., non-conducting fluid flowing through
pipes, pulverized materials passing through chutes or pneumatic conveyors,
churning vats, moving vehicles). Care should be taken in the workplace to
minimize static buildup and to keep ignitable mixtures away from areas where
static may occur.
Application
Notes:
