Inside a non-combustible fibreglass casing, a high-density concentrate of intumescent components, inert thermal insulators and products with gradual release of water, minimises the depth of sealing necessary to contain the passage of heat: with an insulating thickness for cables up. Inside a non-combustible fibreglass casing, a high-density concentrate of intumescent components, inert thermal insulators and products with gradual release of water, minimises the depth of sealing necessary to contain the passage of heat: with an insulating thickness for cables up. Cable systems are found in all buildings nowadays: from industrial plants via power stations to office buildings. The large number of cable support systems run concealed in cable tunnels behind wall and floor coverings. UL Listed Systems Concrete Wall - C-AJ-4056 3 HR F-Rating, 3/4 HR T-Rating Gypsum. Four-component intumescent system is ideal for firestopping larger penetrations such as cable trays and conduit Forms effective intermittent fire-break within horizontal and vertical cable tray runs Hard char material tightly seals penetrations against flame spread, smoke and toxic gases For. UL Listed Systems Concrete Wall - C-AJ-4056 3 HR F-Rating, 3/4 HR T-Rating Gypsum. The fire-resistant cable tray and conduit assemblies play a critical role in maintaining safe and compliant industrial operations, particularly within hazardous locations such as chemical plants, oil refineries, and. us-trations without notice. All illustrations, descriptions and technical information included in this document are provided as indications and can cable trays are equivalent. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned. AF BAGS are intumescent and ablative fireproof pillows certified under EN 1366-3 for sealing up to EI 240 of cable tray penetrations.