The most commonly used materials for fire-proof separation of cable trays are fire-proof boards, fire-proof coatings, fire-proof bags, fire-proof mud, and TST CABLES alternative products such as light fire-proof sections. Their advantages and disadvantages are as follows:Therefore, it is crucial to set up fire-blocking sections (fire sections/fire partitions) on cable trays and select appropriate fire-blocking sections (fire sections/fire partitions) materials. * Two (2) sticks of moldable putty (part number FSP-MPS) are also needed for each opening. UL Listed Systems Concrete Wall - C-AJ-4056 3 HR F-Rating, 3/4 HR T-Rating Gypsum. Scope: Firestopping for busway, cable trays, cables, and trunking passing through walls in enclosed electrical installations. Where cables pass through shafts, walls, slabs, or enter electrical panels or cabinets, openings shall be tightly sealed with firestopping materials in accordance with. In the fire blocking process, the common fire blocking section is usually built with traditional materials, mainly composed of fireproof board, fireproof bag and fireproof mud. Fire resistant bridge partitions should be made of non combustible materials such as gypsum board, mineral wool board, aluminum-plastic board, etc. 7 products are successfully used to protect cables in high-rise buildings, industrial buildings, and offshore facilities as well as in sensitive areas, such as hospitals, airports, production.