MAKE A MEME View Large Image Bus duct wh test 1992.jpg Bus Duct interior and exterior views This Westinghouse bus duct section was used in a successful 2 hour fire test for a firestop system The interior firestop that was provided by the bus duct manufacturer was ...
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Keywords: Bus duct wh test 1992.jpg Bus Duct interior and exterior views This Westinghouse bus duct section was used in a successful 2 hour fire test for a firestop system The interior firestop that was provided by the bus duct manufacturer was replaced with an 8 thickness of firestop mortar because of shrinkage of the material shown here and its insufficient thickness to enable a T rating of the assembly Own 2007-08-27 Achim Hering Firestops Bus ducts Bus duct fire testing
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