Dominic Steel Cable Trays are robust, welded steel systems designed for maximum rigidity, corrosion resistance, and compliance with industry standards.

Material and Construction

Dominic steel cable trays are typically fabricated from hot-dip galvanized or stainless steel, providing high strength and corrosion resistance suitable for industrial and commercial environments . The trays feature formed side rails welded to rungs, with rung spacing not exceeding 102 mm (4 in.) to ensure proper cable support . Stainless steel options include 304 and 316 grades, with 316 offering enhanced resistance to chlorides and industrial solvents, making it ideal for coastal or chemical processing environments .

Tray Types

Steel cable trays are available in multiple configurations:

• Ladder type: Open rungs for ventilation and heat dissipation.
• Solid bottom type: Provides additional cable protection.
• Channel type: Compact design for limited space installations.
• Trough type: Combines solid and ventilated features for specific applications .

Dimensions and Load Ratings

Tray widths typically range from 100 mm to 900 mm, with flange heights from 25 mm to 150 mm and lengths from 2 m to 6 m . The selection of tray width, depth, and series is based on cable loading, span, and environmental conditions, following NEMA/CSA load/span designations . Rung designs include Ty-Rap cable tie slots on 1 in. centers for secure cable management .

Standards and Compliance

Dominic steel cable trays comply with multiple standards:

• ANSI/NFPA 70 – National Electrical Code
• ASTM A123, A653, A1011, A1008, B633 – Steel and coating specifications
• NEMA VE 1 & VE 2 – Metallic cable tray systems and installation guidelines

Accessories and Installation

Cable tray systems include bends, tees, elbows, drop-outs, supports, and splice plates. Innovative splice components reduce the need for additional supports and enable fast, single-person installation . Trays are assembled using M6 bolts for couplers and connections, and all surfaces in contact with cables are inspected to prevent damage . Proper support spacing and field verification of dimensions are recommended for safe and reliable installation .

Corrosion Protection

• Hot-dip galvanization provides long-term protection against rust.
• Stainless steel 304 is suitable for general industrial use.
• Stainless steel 316 is recommended for high-saline or chemical environments .

Summary

Dominic Steel Cable Trays offer a versatile, durable, and standards-compliant solution for cable management in industrial, commercial, and harsh environments. Selection should consider material, tray type, dimensions, load rating, and environmental exposure to ensure optimal performance and longevity .