Fire barrier penetration


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Penetration (firestop)

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File, Title. Supplement 1, Fire Barrier Penetration Seals in Nuclear Power Plants ( January ). Initial Report, Fire Barrier Penetration Seals in Nuclear Power.


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NRC: Fire Barrier Penetration Seals in Nuclear Power Plants (NUREG)

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Description:Firestop FT-Rating Many firestopping systems are tested for both thermal and flame resistance. Some examples are outlet boxes, sink drains, or conduit that leads from a back-box to the space above the ceiling. Each firestop system has limitations for the annular space so if an architect or inspector observes a condition where the annular space is excessive, then further investigation is required. Membrane penetrations use the same products and similar details to protect the opening, but there are exceptions that allow them to be unprotected if the opening is small. Firestop Engineering Judgments In many cases, the various tested firestop systems are not applicable to particular field conditions. In general, both sides of the penetration are sealed with the proper system.

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Views: 9443 Date: 2018-05-22 Favorited: 99 favorites

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