Article Overview
Iranian steel mills typically use galvanized steel cable trays with thicknesses from 0.5 to 2 mm, widths of 50–1100 mm, and lengths of 2–3 meters, designed for heavy-duty industrial environments.
Material and Coating
Cable trays are primarily made from galvanized steel or ST37 steel, providing high mechanical strength and durability . Two main galvanization methods are used:
- Hot-dip galvanization: Coating thickness of 60–70 microns, offering excellent corrosion resistance, suitable for humid or outdoor industrial environments .
- Cold galvanization: Coating thickness of 10–20 microns, suitable for dry indoor areas but less resistant to moisture .
Dimensions
- Thickness: 0.5–2 mm
- Width: 50–1100 mm
- Length: 2–3 meters
- Wire mesh trays: Widths 50–600 mm, heights 50–100 mm, lengths 1–2.5 meters for flexible installation .
Accessories and Installation
Cable trays come with a variety of accessories to facilitate installation in steel mills:
- Knees, three-way intersections, connectors
- Wall and roof supports
- Conversion pieces for directional changes
- Bends and adjustable connectors for wire mesh trays
Manufacturing and Quality
Iranian manufacturers use CNC punching machines and modern fabrication techniques to ensure precision, prevent cable damage, and allow custom shapes such as parallel, cross, or V-shaped punches . Products are designed to meet heavy industrial load requirements and comply with international standards like IEC 61537 for wire mesh trays .
Practical Considerations
- Hot-dip galvanized trays are recommended for steel mills due to high moisture and potential chemical exposure.
- Wire mesh trays offer flexibility for retrofitting and easy on-site bending.
- Accessories should be selected based on load, cable type, and routing requirements.
- Ensure proper support spacing and grounding according to electrical safety standards. These specifications provide a robust framework for selecting and installing cable trays in Iranian steel mills, balancing durability, corrosion resistance, and ease of installation .
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