Specifications of cable trays with partitions

Partition-type cable trays are designed to separate and protect multiple cable types within a single tray, offering organized routing, mechanical protection, and compliance with electrical standards.OverviewPartition-type cable trays are used to segregate different types of cables, such as power, control, and instrumentation, within the same tray system. This separation minimizes electromagnetic interference, prevents physical damage, and facilitates maintenance and future cable additions . They are particularly suitable for instrumentation and control applications where multiple small cables require additional protection .Design and ConstructionTray Body: Typically made from steel, stainless steel, or aluminum, depending on environmental conditions and corrosion resistance requirements .Partitions: Internal dividers are installed along the tray length to create separate compartments for different cable types. These partitions can be fixed or adjustable depending on the manufacturer.Bottom Type: Available with solid or ventilated bottoms. Solid bottoms provide maximum protection against dust and debris, while ventilated bottoms allow heat dissipation .Covers: Optional solid covers can be added for additional protection against mechanical damage and environmental exposure .Dimensions and SpacingRung or Support Spacing: For partitioned trays, a 6 to 9-inch (150–230 mm) spacing is recommended to maintain cable support and prevent sagging .Width and Height: Available in a range of widths and heights to accommodate different cable volumes and types. Standard widths typically range from 100 mm to 600 mm, with heights from 50 mm to 150 mm, though custom sizes are available .Material and FinishSteel: Can be pre-galvanized or hot-dip galvanized for corrosion resistance .Aluminum: Lightweight, corrosion-resistant, and suitable for atmospheric exposure .Stainless Steel: Grades like AISI 316L provide high corrosion resistance, especially in chlorinated or marine environments .Fiberglass Reinforced Plastic (FRP): Offers high resistance to corrosion and a favorable strength-to-weight ratio .Standards and CompliancePartition-type cable trays are designed to comply with NEMA VE 1-2017, UL 568, and ANSI/NFPA 70 (NEC) standards . CE marking may also apply for European installations, ensuring compliance with relevant directives .ApplicationsIndustrial Plants: Segregation of power and control cables.Instrumentation Systems: Protects sensitive signal cables from interference.Commercial Buildings: Organizes multiple cable types in a single tray run.Environments with Minimal Heat Generation: Solid-bottom trays are preferred to avoid heat buildup . Partition-type cable trays provide a robust, organized, and safe solution for complex cable management, ensuring compliance with electrical standards while protecting cables from mechanical and environmental hazards.