Fiberglass Cable Trays

Due to its many advantages and dependable performance in difficult conditions, Monterra FRP/GRP cable trays are becoming more and more popular than the conventional material. Monterra provides a broad range of solutions in the area of cable management, ranging from its standard line to specially designed solutions.

  1. Ladder Type Cable Tray
  2. Perforated Type Cable Tray
  3. Accessories for above Cable Trays
Working Load Capacity
A fiberglass cable tray's working load capacity shows how much static cable weight it can support. With a minimum safety factor of 1.5, it is comparable to destructive load capacity.
Width of Cable Tray Side Rail Load Kg/Mtr. For Support span 2.0 Mtr.
150mm 75 35
300mm 75 65
450mm 100 85
600mm 100 95
750mm 100 125
900mm 150 155
At the middle of the span, there is a 70 kg concentrated static load.
As per NEMA Loading Standards:
Load Lb/ft. Kgs/Mtr.
A 50 74
B 75 111
C 100 148
Side Rail Load Class
75 8A
100 8C, 12C, 16A
150 12C, 16B, 20A, 20C
8, 10, and 12 are in feet of support.
Temperature Effect
Continuously exposing fiberglass to high temperatures reduces its strength qualities. Working loads must be decreased in accordance with the following:
Temp. in F 75 100 125 150 175 200
Approx. % of Strength 100 90 78 68 60 52
Installation Instructions
The National Electric Code and NEMA Publications FG-1 (current edition) standards should be followed while installing a Monterra cable tray. When sawing, drilling, routing, etc., don't use too much pressure. For longer tool life, use drill bits and saw blades with carbide tips. It is not advised to use lubricant while milling. During field cut operations, secure cable trays and fittings properly to prevent material chipping at the cut edges. Observe the directions on the label closely. The strongest and most dependable connections are made using a combination of mechanical fasteners and adhesives.
Support Recommendation as per NEMA Standard
According to NEMA FG1, the splice plate should be placed where the bending moment is zero, which is 1/4 of the span from the support.
  1. Straight Run
  2. 90° Inside Vertical Bend
  3. 90° Outside Vertical Bend
  4. 90° Horizontal Bend
  5. Left Hand Reducer
  6. Horizontal Cross
  7. Horizontal Tee
  8. Splice Plate For Joining
Instead of Galvanized Steel
  1. No need for corrosion resistance coating.
  2. No chance of harm.
  3. resistance to environments that contain chlorine, sulfur, or salt water.
contrasted with aluminum
  1. No electrolytic corrosion as a result of metal-on-metal contact in a moist atmosphere.
  2. Much longer life span in halogen or basic chlorine environment.
Contrasted With Stainless Steel
  1. The mechanical lack of corrosion under tension.
  2. advised in an atmosphere with chlorine.
In Contrast to Metals
  1. No earthing is necessary.
  2. Corrosion resistance lowers the life cycle costs (LCC) of installations.
  3. There isn't a test for electrical continuity required.
  4. won't bend under pressure.
  5. Since it is lightweight, it is simple to move and set up and is simple to work (cut, drill) on the job site.
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Advantages of FRP / GRP / FiberGlass