Cable tray bends in Croatia are installed using standardized fittings for horizontal and vertical changes, supported by brackets or hangers, with materials chosen for corrosion resistance and compliance with DIN EN 61537.

Types of Cable Tray Bends

Cable tray systems use various bends to route cables efficiently:

• Horizontal bends: Change the direction of the tray along the same plane, typically 45° or 90° angles .
• Vertical bends: Allow the tray to rise or descend between levels, including 90° rising or falling bends .
• Tee and cross fittings: Enable branching or intersecting cable routes . Bends are usually fabricated from galvanized steel, stainless steel, or powder-coated sheet metal to resist corrosion, especially in industrial or outdoor environments .

Installation Procedure

1. Review Shop Drawings: Confirm the layout, bend locations, and dimensions according to approved plans .
2. Material Preparation: Inspect all bends and fittings for damage and verify compliance with specifications before installation .
3. Support Installation: Install brackets, hangers, or struts to support the cable tray system. Supports must be spaced according to tray type and load, typically every 1–2 meters for horizontal runs .
4. Fitting Attachment:
   • Horizontal bends are connected using angle connectors or couplers and secured with screws or bolts .
   • Vertical bends are pushed over the tray end and tightened; fastening materials may be ordered separately .
5. Alignment and Leveling: Ensure bends are aligned with the tray run and maintain proper slope for drainage if required.
6. Cable Laying: Once bends are installed, cables can be routed, ensuring no sharp bends that exceed manufacturer recommendations .
7. Inspection: Verify mechanical stability, proper fastening, and compliance with fire protection or load-bearing requirements .

Local Suppliers and Fabrication

• Metalis (Donja Stubica, Croatia): Offers CNC and conventional bending for cable trays, including custom bends up to 3000 mm in length, with welding and finishing options .
• Bevec d.o.o.: Provides a wide selection of bends, couplers, and accessories in galvanized, hot-dip galvanized, or stainless steel .
• OBO Bettermann: Supplies standardized fittings for 35–60 mm side-height trays, including adjustable 45° and 90° bends, vertical bends, and tees .

Best Practices

• Use certified materials and fittings to ensure mechanical strength and fire safety.
• Maintain proper support spacing to prevent sagging or stress on bends.
• Avoid sharp cable bends beyond manufacturer limits to prevent insulation damage.
• Consider environmental conditions (humidity, chemicals) when selecting material and finish.
• Follow DIN EN 61537 standards for cable support systems to ensure compliance and safety . By following these guidelines, cable tray bends can be installed efficiently and safely in Croatia, ensuring long-term reliability and compliance with industrial standards.