FRP Cable Trays
   
 

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Lotus Fibre - The Leader in FRP MOULDED & FABRICATION items, FRP Cable Trays, GRP Cable Trays

FRP CABLE TRAYS & GRP CABLE TRAYS
FOR:

  • General Industry

  • Chemical Plants

  • Petrochemical Plants

  • Fertilizer Plants

  • Railway

  • Pulp & Paper Plant

  • Water / Waste Water

  • Treatment / ETP

  • Power Plants

  • Marine / Ships & Docks

  • Winning

  • Corrosive Environment

  • Coastal Areas

  • OFF- Shore Installations

 FRP Cable Trays, GRP Cable Trays

The FRP Cable Support Systems is most suitable where the metallic Systems gets Corroded (Iron gets rusted and Alluminium develops White or Silver grey Patina)
 

THE CAUSES OF CORROSIVE ATTACK ARE :

SIMPLE CHEMICAL ATTACK

When the environment is loaded with
Chemical vapours, the attack is severe.

ELECTRO CHEMICAL CORROSION

 

CHLORINE CONTENTS

in atmospheric air (Coastal / Sea)

In any event the METALLIC SYSTEM HAS LIMITED SERVICE LIFE / EXPECTANCY (Regardless of how the end point in defined)

FRP CABLE TRAYS & GRP CABLE TRAYS: designed to withstand corrosion and stresses.

THE MAIN FEATURES ARE :

  • Corrosion Resistant Excellent Environmental Resistant

  • Rigid & Structurally Strong

  • High Impact strength

  • Light Weight

  • Non Conductive (Electrical & Thermal)

  • Non Sparking

  • Chemical Resistant

  • Non Magnetic

  • Resistant to Chipping and Cracking

  • U. V. Stabilized

  • No Water Absorbsion

Life Expectancy of FRP is more than 20 years where as it is only 10 years (approximately) for Gl / Gl PVC in Corrosive environment. The cost of FRP Cable Trays is higher in the initial stage, where as it is only 15 to 25% of the total cost (during a time span of 20 years) due to maintenance such as REPAINTING AND REPLACEMENT.

MATERIAL OF CONSTRUCTION
Main Ingredients:

  1. Glass Fibres (Roving)

  2. Glass Mat

  3. Surface veil

  4. Resin (ISO PHATHALIC OR VINYLESTER)

  5. Additives

PROCESS                   PULTRUSION
Pultrusion is a manufacturing process for producing continous length of reinforced plastic structural shapes.

The process involves pulling of Continous Glass Fibres, Continous Glass Fibre Mat, Plastic fibre veil through a liquid resin bath. The glass fibre gets impregnated by the resin mixture and this impregnated fibre is pulled through a heated steel shaping die, where the resin gets GEL and the SOLID CONTINOUS PROFILE comes out.

The continous Glass Roving give the strength in the longitudinal direction, where as Glass Mat gives the strength in the transverse direction.

The type of Resin to be used depends upon the environment where the cable support System is to be used.
 

For General Environment

ISO PHATHALIC GRADE

For Severe Corrosive Environment

VINYLESTER

(Caustic and strong acidic)

 

The Resin is (FIRE RETARDANT & U. V. STABILISED)

TYPES OF CABLE TRYES:
LADDER TYPE

It is a structure Consisting of two LONGITUDINAL SIDE MEMBERS Connected by individual transverse members called Rung.

The Longitudinal Members are C-Channel with the extra rib on the fold of the channel.
 

FRP CABLE TRAYS

The Rungs are specially designed to

  1. Withstand the load

  2. Allow the cable to dropout without contacting a sharp edge.

  3. Double inside fold is used to anchor the fastner head for clamping the Cables.

GRP CABLE TRAYS

JOINING OF TRANSVERSE & LONGITUDINAL MEMBERS
To get the shape of the ladder Transverse & longitudinal members are joined together.

The strongest connections are made by using a combination of :

  • Adhesive (high strength epoxy) The Two Members are locked by groove in the Rung and projection in the longitudinal member. Stopper is fixed for further locking of the two members.

  • Mechanical Fastner (S.S. Rivet)

PERFORATED TYPE
It is a structure consisting of bottom (ventilated or solid) with the longitudinal siderails.

DIMENSIONS

LADDER TYPE :
 

Standard Width (mm)

Height

Thickness

Rung Spacing

300

80

4.5

300

450

110

4.5

300

600

110

4.5

300

750

150

5

2 Rung together
at 300 Spacing


PERFORATED TYPE :
 

Sr. No.

Width

Height

Thickness

1.

75

35

4

2.

110

35

4.5

3.

150

50

5

4.

200

50

6

 

COLOUR :

GREY

STANDARD LENGTH :

3000mm

ALL CUT OR MACHINED EDGES, HOLES AND ABRASIONS MUST BE SEALED WITH THE RESIN


MATCHING ACCESSORIES
The Following accessories are generally used to complete the system :

COUPLERS (STRAIGHT & REDUCERS)

TEES (HORIZONTAL & VERTICAL)

CROSSES
     

REDUCERS
 

HORIZONTAL BENDS
(RIGHT / LEFT)

VERTICAL BENDS (UP / DOWN-INSIDE / OUTSIDE)
     
   

COVERS (VENTILATED / SOLID)

 

 

INSTALLATION
 

General

The cable Trays and Accessories are bolted together and fixed to Supporting member. For the purpose of bolting together the side rails and all accessories have holes on each end for fixing Connector plates.

Support Span

Recommended Support Span at installation site must not exceed 2000.

Cable Fill

Recommended cable fill should not normally be more than 80% of the inside area of the cable tray.

LOADING CAPACITY

The Working load capacity represents the ability of a cable tray to support the weight of the cable and the following guidelines should be Considered for loading the trays.

With the Support span not exceeding 2000 mm, the maximum designed loading is UDL + 70 kg. Concentrated Load at the Centre of the Span:
 

U.D.L. (Cable Load)

Width

30 kg / linear mtr

150 mm

60 kg / linear mtr

300 mm

90 kg / linear mtr

600 mm

120 kg / linear mtr

750 mm