Fireproofing of vertical shaft cable trays
· Building Water Stop Platforms: In vertical shafts, ensure that reserved openings are constructed with a smooth and aesthetically pleasing water stop platform that facilitates effective sealing. Layered Placement of Fire Blocking Materials: When placing fire blocking . Where cables pass through shafts, walls, slabs, or enter electrical panels or cabinets, openings shall be tightly sealed with firestopping materials in accordance with. The following charts give the number of 3M pillows needed to completely firestop an opening that cable tray passes through. UL Listed Systems Concrete Wall - C-AJ-4056 3 HR F-Rating, 3/4 HR T-Rating Gypsum. They provide robust support for cables while ensuring fire safety in extreme conditions.
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