Abstract
The use of purging to reduce hazard is recognized in Article 500β1 of the National Electrical Code: βIn some cases, hazards may be reduced or hazardous areas limited or eliminated by adequate positive-pressure ventilation from a source of clean air in conjunction with effective safeguards against ventilation failure. It is recommended that the authority enforcing this Code be consulted before such layouts are prepared.β
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References
RP12.4, βInstrument Purging For Reduction of Hazardous Area Classification,β Instrument Society of America, Pittsburgh.
McCarron, R., βConsiderations in Instrument Case Purging,β Proceedings of 1960 Symposium on Safety for Electrical Instrumentation in Hazardous Areas.
Beutler, J. A., and J. A. Clark, βHeat Transfer and Computational Considerations in the Design of Instrument Cases for Operation in Hazardous Atmospheres,β Proceedings of 1960 Symposium on Safety for Electrical Instrumentation in Hazardous Areas, Instrument Society of America, Pittsburgh.
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Β© 1966 Springer Science+Business Media New York
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Magison, E.C. (1966). Reduction of Hazard by Purging. In: Electrical Instruments in Hazardous Locations. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-6543-1_7
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DOI: https://doi.org/10.1007/978-1-4899-6543-1_7
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4899-6253-9
Online ISBN: 978-1-4899-6543-1
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