Transcription of Conduit Seal Effectiveness
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CCoonndduuiitt SSeeaall EEffffeeccttiivveenneessss 659 Van Meter Street Cincinnati OH 45202-1568 T: 513 241 1230 F: 513 241 1287 Email: Website: By Scott T. McGlamery, ; and Bret T. Heckman, Department of Electrical Engineering, Hixson, Cincinnati, OH Abstract - When there is a significant temperature difference between two adjacent spaces, maintaining an effective vapor barrier between the spaces is essential to prevent vapor infiltration and condensation in the cold space. Conduit penetrations through walls and ceilings can compromise the vapor barrier if not done properly. This paper reports the results of testing four different Conduit vapor seals. I. Introduction GMP (Good Manufacturing Practice) facilities often contain spaces that are conditioned to low temperatures for product / ingredient storage and to maintain product temperature during processing and packaging.
conduits mounted vertically and horizontally. Conductors were cut at 20” long to project out of the top and bottom of the conduits. A conduit fill of four Thermoplastic High Heat-resistant Nylon-coated (THHN) conductors and a conduit fill of 12 THHN conductors were used for …
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