Per the National Electrical Code, a cable tray system is "a unit or assembly of units or sections and associated fittings forming a rigid structural system used to securely fasten or support cables and race ways".. Composite cable trays are made from a selection of premium resin reinforced with reinforcements to form a strong composite which is resistance to must chemicals and ultra violet. Composite cable tray resists acids, salts, alkalis and a wide range of aggressive chemicals and solvents. They are also available in fire retardant grade
APPLICATIONS
- Offshore/Onshore Platforms
- Chemical and purification plants
- Refineries
- Tunnels
- Effluent treatment plants
- Marine industry
- Metallurgical plants
- Fertilizer plants
- Railway cable laying
- Telephone cable laying
- Electrical cable laying
- Protection of medium and low tension cable on walls or poles
- Food & Drug industry etc.
- Building
- Oil & Gas secto
Benefits and Characteristics of FRP Cable Trays
- Corrosion Resistance
- Fire Resistance
- Non-Magnetic
- Impact Resistance
- Non-sparking
- Maintenance Free
- Light Weight
- Cost Saving
- Non-Conductive
- Low Installation Costs
- Superior Strength
- Very good stability to UV
- Mechanical Strength
- High Performance
- Easily Worked
- Cut and drilled on site
- Easy to install
- Long Life
- Non rust
- Nor do they ever require painting
- Resistance to most chemicals
- Gives added fire protection to the cables in case of external fire
THE PULTRUSION PROCESS
Pultrusion is a manufacturing process for producing continuous lengths of reinforced polymer structural shapes with constant cross-sections. Raw materials are a liquid resin mixture (containing resin, fillers and specialized additives) and flexible textile reinforcing fibers. The process involves pulling these raw materials (rather than pushing, as is the case in extrusion) through a heated steel forming die using a continuous pulling device. The reinforcement materials are in continuous forms such as rolls of mat and doffs of roving. As the reinforcements are saturated with the resin mixture ("wet-out") in the resin bath and pulled through the die, the gelatin or hardening, of the resin is initiated by the heat from the die and a rigid, cured profile is formed that corresponds to the shape of the die. While pultrusion machine design varies with part geometry, the basic pultrusion process concept is described in the following schematic.The creels position the reinforcements for subsequent feeding into the guides. The reinforcement must be located properly within the composite and this is the function of the reinforcement guides.
The resin bath saturates (wets out) the reinforcement with a solution containing the resin, fillers, pigment, and catalyst plus any other additives required. The interior of the resin bath is carefully designed to optimize the wet-out of the reinforcement.
On exiting the resin bath, the composite is in a flat sheet form. The performer is an array of tooling which squeezes away excess resin as the product is moving forward and gently shapes the materials prior to entering the forming and curing die. In the forming and curing die, the thermosetting reaction is heat activated (energy is primarily supplied electrically) and the composite is cured (hardened). On exiting the die, it is necessary to cool the hot part before it is gripped by the pull blocks (made of durable urethane foam) to prevent cracking and/or deformation by the pull blocks. Strong well uses two distinct pulling systems, one that is a caterpillar counter-rotating type and the other a hand-over- hand reciprocating type to pull the cured profile to the saw for cutting to length.
The resin bath saturates (wets out) the reinforcement with a solution containing the resin, fillers, pigment, and catalyst plus any other additives required. The interior of the resin bath is carefully designed to optimize the wet-out of the reinforcement.
On exiting the resin bath, the composite is in a flat sheet form. The performer is an array of tooling which squeezes away excess resin as the product is moving forward and gently shapes the materials prior to entering the forming and curing die. In the forming and curing die, the thermosetting reaction is heat activated (energy is primarily supplied electrically) and the composite is cured (hardened). On exiting the die, it is necessary to cool the hot part before it is gripped by the pull blocks (made of durable urethane foam) to prevent cracking and/or deformation by the pull blocks. Strong well uses two distinct pulling systems, one that is a caterpillar counter-rotating type and the other a hand-over- hand reciprocating type to pull the cured profile to the saw for cutting to length.
