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FRP Ladder Cable Tray
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FRP GRP Ladder Cable Trays

FRP GRP Ladder Cable Trays are designed with two longitudinal side rails and horizontal rungs that are both mechanically fastened and adhesively bonded to ensure structural integrity. These trays offer excellent strength-to-weight ratio and are ideal for supporting heavy cable loads. The rungs are typically spaced at 150mm, 250mm, or 300mm intervals, providing flexibility for various cable configurations. Each ladder tray is constructed with precision and comes with pre-drilled holes for coupler plate installation and hardware, ensuring ease of installation and smooth cable laying without damage.

Key Features of FRP GRP Ladder Cable Trays

  • Strong and Lightweight Construction
  • Rung Spacing Options: 150mm, 250mm, 300mm
  • Corrosion and UV Resistant
  • Fire Retardant Resin Grades Available
  • Pre-Drilled Side Rails for Easy Coupler Installation
  • Non-Conductive & Electrically Safe
  • Easy to Handle, Install, and Maintain
  • Ideal for Industrial and Outdoor Environments
Type of Cable Trays FRP material, Perforated type
Material UV resistant, Antistatic, corrosion-resistant and fire retardant (Class 1); Glass content ≥ 55%
Manufacturing Process Hand Lay-Up Process
Resin Used UV-resistant Isophthalic Resin, Vinyl Ester Resin
Support Span 1.5 Meters
Loading Capacity (As per NEMA FG1-198x) 50mm Width: 7 Kg/m
100mm Width: 15 Kg/m
150mm Width: 30 Kg/m
300mm Width: 60 Kg/m
450mm Width: 75 Kg/m
600mm Width: 90 Kg/m
Permissible Deflection Shall not exceed L/200mm
Cable Tray Accessories Includes Horizontal & Vertical Bends, Tees, Reducers, and Crosses. Made from same material with minimum bending radius of 600mm.

Type Tests of FRP Pultruded Sections

  • Dielectric Strength: Axial 30–45 KV/25mm, Radial 10–15 KV/mm
  • Water Absorption: Max 0.6% by weight (24 hrs immersion)
  • Flame Spread Index ≤ 25; Smoke Density ≤ 450 (ASTM E84 Class A)
  • Very Low Flammability (V0) – UL94
  • Oxygen Index ≥ 30% (ASTMD-2863)
  • UV Resistance per ASTM G154 (1000+ hrs, tensile strength maintained)
  • Flame Retardant: ASTM D635

Mechanical & Electrical Properties

  • Tensile Strength: ASTM D 638-91
  • Flexural Strength: ASTM D 790-92
  • Compressive Strength: ASTM D 695-91
  • Dielectric Strength: ASTM D 149-97a
  • Izod Impact: ASTM D 256

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