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Purge and Pressurization: Advantages, Methods and Guidelines
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Purge and Pressurization: Advantages, Methods and Guidelines


Hazardous locations provide some of the greatest challenges to facility and enclosure safety. Engineers must determine and mitigate the dangerous effects present when designing and employing enclosures in these situations. Fortunately, there are many protection concepts that can be utilized when placing equipment into hazardous locations. Some of the most widely used are Explosion-Proof or Intrinsically Safe concepts which focus on containment or prevention.

However, one of the easiest to understand and use is purge and pressurization. Purge and pressurization is an alternative hazardous location protection concept that allows lesser rated equipment to be used in hazardous areas by segregating the equipment from the hazardous material.