A four-inch inside diameter rigid galvanized steel conduit passes through a finished concrete floor slab via a five-inch inside diameter rigid galvanized steel sleeve. The annular space between the conduit and sleeve is filled with firestop material. The sleeve extends one inch above the finished concrete floor slab and is secured with typical four concrete anchors.
SECTION A A 4" ID RGS CONDUIT FIRESTOP MATERIAL 5" ID RGS SLEEVE FIRESTOP MATERIAL 5" ID RGS SLEEVE TYP. FOUR CONCRETE ANCHORS FINISHED CONCRETE FLOOR SLAB 1" ABOVE SLAB 4" ID RGS CONDUIT
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