Risk of Electrostatic Ignition during Storage Tank Cleaning Operations

This case study explores how static electricity is an insidious ignition source in everyday operations such as routine storage tank cleaning.  Storage tanks in oil refineries and chemical plants contain large volumes of static accumulating flammable liquids. Usually fixed or mobile and made of large metal containers, storage tanks vary in size, construction and design, from vertical and horizontal to open top and closed top. One thing that is certain, the risk of an electrostatic discharge remains an ever present and un-seen threat in industrial petroleum hazardous area environments.

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