a common ignition source within chemical plants is sparks resulting from static charge buildup and sudden discharge. static electricity is perhaps the most elusive of ignition sources.Despite considerable efforts,serious explosions and fires caused by static ignition continue to plague the chemical process industry.
the best design methods for preventing this type of ignition source are developed by understanding the fundamental relevant to static charge and by using these fundamental to design specific feature within a plant to prevent the accumulation of static charge or to recognize situation where the buildup of static electricity is inevitable and unavoidable. For unavoidable static buildup design feature are added to continuously and reliably inert the atmosphere around the regions where static sparks are likely