Construction of Hollow Cable Trays in Israel

Hollow cable trays in Israel are constructed using materials like galvanized steel, aluminum, or FRP, following strict technical standards for safety, load capacity, and environmental conditions.Materials and TypesHollow cable trays, often referred to as solid-bottom or ventilated trays, are designed to support and protect electrical and communication cables. Common materials include:Galvanized or painted steel for indoor applications, providing mechanical strength and corrosion resistance .Aluminum for lightweight, corrosion-resistant installations, suitable for industrial or offshore environments .Fiber Reinforced Plastic (FRP) for highly corrosive or non-metallic requirements . Tray types include ladder, perforated, solid-bottom, and wire mesh trays, with hollow designs typically used for solid-bottom or partially ventilated trays to protect cables from dust, moisture, or electromagnetic interference .Design and Installation GuidelinesConstruction and installation must comply with Israeli electrical codes (SI 1015) and international standards such as IEC-61537, UL 568, and NFPA 70 . Key considerations include:Route Planning: Align trays with building structures, minimize detours, and separate power and signal cables to reduce interference .Load and Span: Select tray width and thickness based on cable weight and quantity, ensuring mechanical strength to prevent deformation .Supports and Mounting: Use wall brackets, trapeze hangers, or pedestal supports at intervals consistent with load ratings. Horizontal deviation should not exceed 2mm per meter, and vertical deviation 3mm per meter .Environmental Considerations: Outdoor or high-humidity areas require corrosion-resistant materials; trays must allow for heat dissipation and future cable expansion .Regulatory ComplianceIsraeli installations must adhere to electrical safety and fire codes, ensuring proper cable segregation, flame retardancy, and mechanical protection . Compliance with NEC, CEC, and NFPA standards is often referenced for design, testing, and installation practices .Local Market and SuppliersIsrael's cable tray market includes both domestic manufacturers and international suppliers, offering customized solutions for industrial, commercial, and renewable energy projects . Notable suppliers like Cable House provide hollow cable trays, fittings, and accessories, emphasizing durability, technical compliance, and tailored solutions for local projects .Practical ConsiderationsEnsure correct tray sizing to avoid overloading and maintain cable management efficiency .Use dedicated trays for sensitive data or control cables to prevent electromagnetic interference .Plan for future expansion, allowing additional cables without major structural modifications .Consider fireproofing measures and environmental protection for outdoor or industrial installations . Hollow cable trays in Israel are thus a combination of robust material selection, precise engineering, and adherence to local and international standards, ensuring safe, organized, and long-lasting cable management solutions.