Basic Info.
Product Description
Product Description
PRFV Flame retardant crossarms
Glass fiber reinforced plastic (GRP) crossarm, also known as fiberglass crossarm, is a structural component widely used in power transmission and distribution systems. It is fabricated from thermosetting resin and glass fiber reinforcement, which gives it excellent mechanical and electrical properties.
The production process of GFRP crossarms involves several steps, including mold-making, resin impregnation, curing, and finishing. First, the mold is fabricated according to the desired shape and size of the crossarm. Then, glass fiber mat or cloth is cut to size and laid into the mold. The mold is then vacuum-sealed and resin is introduced through small holes. The resin impregnates the glass fiber and fills the voids between the fibers, creating a solid composite. The mold is then heated to cure the resin and form the PRFV crossarm.
High strength cross arm :End cap+Square tube+Foam+punch
Common cross arm :End cap+Square tube+punch
Details Images
Product advantage
One of the key advantages of GFRP Power Cross arms is their long service life. They have a low coefficient of thermal expansion, which reduces the risk of cracking or warping due to temperature changes. They are also highly resistant to weathering, such as sun exposure and harsh winds. Additionally, they require minimal maintenance, which reduces downtime and improves reliability.
structural PRFV crossarms are available in various sizes and shapes to accommodate different applications. They can be customized to meet specific requirements, such as increased strength or stiffness for high load applications. They can also be designed to have tapered ends, which reduces wind drag and improves the aerodynamics of transmission lines.
| Solid / hollow cross arms | |
| Polyurethane foam filling | No polyurethane foam filling |
| Improve the rigidity of the cross arm | Weaker hardness |
| Prevent plastic deformation | Easy to deform |
Product Application
FRP insulator crossarms are used in a variety of environments due to their corrosion resistance, UV resistance, and high strength-to-weight ratio.
They are commonly used in coastal regions, where salt air and moisture can cause corrosion of metallic components. They are also used in areas with seismic activity, as they have low mass and high stiffness, which reduces the risk of damage during earthquakes. Additionally, their light weight makes them easier to transport and install, reducing costs and improving safety.
Package&Delivery
Technical Date
| Pultrusion Profiles Performance Index | |||
| Property | TEST Method | Units | Mean-Value lw/cw |
| Tensile Strength | ASTM D638/GB1447--83 | MAa | 210/75 |
| Tensile Modulus | ASTM D638/GB1447--83 | GPa | 22/10 |
| Flezural Strengh | ASTM D790/GB1449--83 | MPa | 302/76 |
| Flezural Modules | ASTM D790/GB1449--83 | GPa | 18.6/7.2 |
| Compressive Strengh | ASTM D695/GB1448--83 | MPa | 258/98 |
| Compressive Modules | ASTM D695/GB1448--83 | GPa | 19.2/7.2 |
| Interlaminar Shea(LW) | ASTM D2344/GB3357--82 | MPa | 24.5 |
| Charpy Impact Strengh | ISO179/GB1451--83 | 2 KJ/m | 279 |
| Barcol Hardness | ASTM D2583 | - | 50 |
| Elongation to break | ASTM D638/GB1447--83 | % | 0.9 |
| Water Absorption(MAX) | ASDN D570/GB1462 | % | 0.57 |
| Density | ASTM D792 | 3 g/cm | 1.8 |
| Coefficient of Thermal Expansion | ASTM D696/GB2572--82 | -6 10 /ºC | 5.1 |
| Flammability Classification | UL94/GB8924--88 | - | VO(32) |
| Tunel Test | ASTM E--84 | - | 25Max |
| Flammability Extinguishing | ASTM D635 | - | self extinguishing |
| Arc Resistance(LW) | ASTM D495/GB1411--78 | min/(s) | 120 |
| Dielectric Constant(PF) | ASTM D150/GB1409--79 | @60Hz | 5 |
| Dielectric Strength(PF) | ASTM D149/GB1408--78 | KV/mm | 8 |
| Dielectric Strength(PF) | ASTM D149/GB1408--78 | KV/mm | 1.6 |
| Surface Resistance | ASTM D257/GB1410--78 | Ω | 15 12 10 -10 |
| Volume Resistance | ASTM D257/GB1410--78 | Ω.cn | 15 12 10 -10 |
Company Introduction
Our company has been in the fiberglass industry for 30 years and our fiberglass products have been highly recognized by many customers. We specialize in the production of FRP electrical cross arms, also known as flame retardant cross arms, PRFV (Pultruded Fiber Reinforced Vinyl Ester) square tubing, and composite insulator tubing.
Our production process involves the use of advanced technologies and materials, which leads to a longer service life, light weight, high strength, flame retardance, ultraviolet protection, cold resistance, and corrosion resistance.
These features make our products ideal for use in a variety of settings, such as power lines, telecommunications towers, and other outdoor applications. We ensure that our products meet the highest standards of quality and safety through rigorous testing and quality control procedures. Our mission is to provide our customers with reliable, cost-effective, and innovative solutions that meet their specific needs.
Our Services & Strength
Main Processing Technic Products Advantage
1. Protruded Profile 1.High Voltage Protruded profile and Hand Layup Shell
2. SMC Moulding Products 2. Customize SMC Moulding Products and Design Support
3. Hand layup Products 3. Customize Large size Hand layup Products
FAQ
1. What is your minimum order quantity?
Our MOQ is 1 meter.(Without limiting sizes and specification,according to actual situation)
2. How can I get samples to check your quantity?
We can offer samples for free.
3. Can you do the production as customized?
Yes, we have a professional technique team, we could produce the fiberglass depends on your requirements.
Any length can be cut. according to customer requirements.
Usually by T/T , L/C , Paypal, Western Union also ok.