What type of system does C-AJ-4020 classify as?

C-AJ-4020 classifies as a cable tray system. This classification is important in understanding how firestop systems are applied in different scenarios, particularly in terms of how cables and electrical wiring are managed and protected during a fire event.

Cable trays are used to support and protect electrical cables, providing a structured pathway that allows for proper ventilation and heat dissipation, which is critical for maintaining the integrity of electrical systems. Within this context, firestop measures are essential to prevent the spread of fire and smoke through these tray systems, ensuring that these pathways do not compromise the overall fire-resistance rating of the walls or floors they penetrate.

Understanding this classification helps in selecting appropriate firestop materials and methods based on the cable tray's specific characteristics and its role within the fire safety system of a building.