There are several cable conduits inside the cable tray

It is common and code-compliant to have several conduits inside a cable tray, as long as the tray is designed to support them and the cables are properly secured.Understanding Cable Trays and ConduitsCable trays are open or semi-open structures used to support and route multiple cables in industrial, commercial, and data environments. Unlike conduits, which fully enclose cables for mechanical and environmental protection, cable trays allow cables to be laid openly, providing easier access for maintenance, additions, or removals . Conduits, on the other hand, are rigid or flexible tubes that protect cables from mechanical damage, moisture, chemicals, and UV exposure .Using Conduits Inside Cable TraysIn many installations, especially in industrial or large-scale commercial settings, multiple conduits can be placed inside a cable tray. This setup is often used to:Organize different types of cables (power, control, data) separately within the same tray.Provide additional mechanical protection for sensitive or high-risk cables.Facilitate future expansion by allowing new conduits to be added without disturbing existing cables . Tray cables (TC or TC-ER) are designed to run openly in cable trays without conduit, but conduits may still be used for extra protection in high-risk areas, long open runs, or where code requires additional shielding .Installation ConsiderationsEnsure the tray is rated to support the combined weight of the conduits and cables.Maintain proper spacing and bend radius for cables exiting conduits to prevent damage .Use UV-resistant or corrosion-resistant materials for outdoor or harsh environments, especially for conduits inside trays on rooftops or exposed areas .Follow NEC Article 392 and 336 for tray cable installation and conduit requirements to ensure compliance .AdvantagesEasier maintenance: Individual conduits can be accessed without disturbing other cables.Enhanced protection: Conduits shield sensitive cables from mechanical or environmental hazards.Flexibility: Allows separation of cable types and future expansion without major rework . In summary, placing several conduits inside a cable tray is a standard practice in many industrial and commercial installations, providing both organization and protection while maintaining the accessibility advantages of cable trays. Proper design, material selection, and adherence to code ensure safety and long-term reliability.