Transcription of Hazardous area classifications (SANS10108)
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Hazardous area classifications (SANS10108)
January 2005 - Vector - Page 38 INSTALLATIONS& CONTRACTINGArea classification (in South Africa betterknown as the classification of hazardouslocations) plays a pivotal role in explosionprevention the technology of preventingexplosions due to flammable gases,vapours, mists, dusts and fibres in surfaceindustry and mines. Area classification canbe defined in several ways, for examplezpart of major Hazardous installationrisk analysis;za quantification of the probability thatan explosive atmosphere will occur, orzdetermining the appropriate zones andzone geometries associated withsources of release (see Fig.)
application has grown in detail requiring the classifier to be in command of a certain knowledge and skills base. Area classification is no longer a part-time activity for an engineer - it has become a team-based job facilitated by an expert. This brings with it certain disadvantages, but also leads to safer plants in hazardous locations
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