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Specifications of Vertical Support Arms for Cable Trays

Optical access and telecom site reference Published 30 Apr 2024

Use this reference to prepare product questions for CGWEB NETWORKS. Check interfaces, capacity, protection and installation requirements against the current product documentation.

Vertical support arms for cable trays are typically made of steel or stainless steel, comply with standards like BS 6946 and DIN EN 61537, and are designed to support cable trays under mechanical and environmental loads.

Material and Construction

Vertical support arms are generally fabricated from low carbon steel or stainless steel to ensure strength and durability under load and environmental conditions. They may feature pre-galvanized coatings (ASTM A653M G90/G60) or hot-dip galvanization (ASTM A123 or BS EN ISO 1461: 2009) for corrosion protection. I-beam or channel constructions are common, providing rigidity and resistance to bending.

Dimensions and Compatibility

Standard lengths for metal framing channels are typically 3000 mm with a tolerance of ±3. 2 mm, though custom lengths are available. Side rail flanges vary depending on NEMA class: 1-1/8" for Class 1, 2" for Class 2, 2 3/8" for Class 3, and 2 3/4" for Class 4.

Vertical support arms are compatible with cable trays, cable ladders, and mesh trays, and are designed to accommodate multiple NEMA classes.

Load Capacity and Standards

Vertical support arms must withstand mechanical loads from cables, wind, ice, and short-circuit forces. They are manufactured according to BS 6946 for channel support systems and DIN EN 61537 for cable support systems, ensuring safe working loads and structural integrity. Test loads are typically three times the safe working load to ensure safety under dynamic conditions.

Installation

Supports can be anchored to concrete using M10, M12, or M16 anchors, depending on load requirements. C-channel or I-beam supports allow flexible attachment points via continuous slots or pre-drilled holes. Proper installation requires alignment, bracing, and spacing to prevent sagging and maintain cable tray integrity.

Additional Considerations

Surface treatments and coatings should be selected based on environmental exposure (indoor, outdoor, corrosive environments),. Vertical support arms are part of a system approach, meaning they should be used with compatible fittings, braces, and trays to ensure safety and performance. For heavy-duty applications, I-beam construction with added bracing improves load distribution and cable management.

By adhering to these specifications, vertical support arms provide reliable, safe, and durable support for cable tray systems in industrial and commercial installations.

Specifications of Vertical Support Arms for Cable Trays - CGWEB NETWORK INFRASTRUCTURE [PDF]

Specifications of Vertical Support Arms for Cable Trays

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