Product catalog
FRP Crossarms
We make pultruded FRP crossarms in our own factory for distribution and transmission poles. They resist rot and corrosion and fit standard hardware.
Price by written quotation
Include the quantity and destination. Specification and supply details are confirmed for the inquiry.
Key parameters
- Construction
- Pultruded fiberglass, hollow rectangular section, foam-filled, sealed end caps
- Standard section
- About 3-5/8 × 4-5/8 in (92 × 117 mm)
- Heavy-duty section
- About 4 × 6 in (102 × 152 mm)
Technical specifications
| Parameter | Typical value |
|---|---|
| Construction | Pultruded fiberglass, hollow rectangular section, foam-filled, sealed end caps |
| Standard section | About 3-5/8 × 4-5/8 in (92 × 117 mm) |
| Heavy-duty section | About 4 × 6 in (102 × 152 mm) |
| Length | 8 ft and 10 ft standard; other lengths to order |
| Resin | Polyester or vinyl ester with UV-protective surface veil |
| Mounting | Braced, braceless center-mount, deadend and double-arm assemblies |
| Standard grade | High-performance grade | |
|---|---|---|
| Option | Standard wall section for tangent and light angle positions on distribution lines. | Heavy wall or larger section, and double arms, for deadend, heavy-angle and long-span positions. |
Design references: mechanical, electrical and weathering
| Parameter | Standard grade | High-performance grade | Conditions |
|---|---|---|---|
| Assembly load capacity | Distribution tangent duty | Heavy deadend and long-span duty | Full-section tests with reference to ASTM D8019; rated per position for the selected section, length and hardware |
| Electrical performance | Dielectric testing on request | Wet and dry flashover tests on request | With reference to ASTM D149 / IEEE Std 4 test methods |
| UV weathering | UV-stabilized resin and veil | Additional UV-protective surface layer | Accelerated weathering with reference to ASTM G154 |
| Design basis | Wood-equivalent replacement | Load-specific design | Load cases from your line design; ASCE MOP 104 used as a design reference |
Values outside these ranges: custom designs are available on request.
Listed values are selection references, not ratings for every configuration. The agreed specification identifies the selected dimensions, materials and required evidence. Standards cited here are design references, not certification claims; custom dimensions depend on the product and tooling.
FIBROVX FRP crossarms are pultruded fiberglass beams that replace wood and steel crossarms on overhead distribution and transmission structures. They carry pin, post and suspension insulators in tangent, angle and deadend positions and do not rot, split or corrode.
Key highlights: common section of about 3-5/8 × 4-5/8 in (92 × 117 mm) to fit standard wood-crossarm hardware, and about 4 × 6 in (102 × 152 mm) for heavy loads; standard lengths of 8 and 10 ft with other lengths to order; foam-filled with sealed end caps; braced, braceless center-mount and double deadend assemblies. Load capacity is designed with reference to ASTM D8019 and confirmed for your section, length and hardware at quotation.
Key benefits
- High strength-to-weight ratio for easier handling and pole-top installation
- Non-conductive material adds insulation between phases and the pole
- No rot, woodpecker, insect or corrosion damage
- Consistent mechanical properties from continuous pultrusion
- Drill patterns matched to existing wood-arm hardware
Customization options
- Section size, wall thickness and length
- Tangent (braced or braceless) and deadend / double deadend assemblies
- Pre-drilled hole patterns for your utility standard
- Center-mount brackets, braces and hardware kits
- Color and UV-protective surface veil
Exact sizes, resin systems, colors and accessories are confirmed at quotation for your drawings and operating conditions. FIBROVX manufactures to order and supports OEM / private-label marking where agreed.
Typical applications
- Distribution line tangent and deadend structures
- H-frame and transmission line crossarms
- Coastal, polluted and high-humidity areas where wood or steel degrade
- Replacement of aging wood crossarms during line upgrades
FAQ
Do your crossarms fit standard wood-arm hardware?
Yes. The common 3-5/8 × 4-5/8 in section matches wood-arm hardware, and hole patterns are drilled to your utility drawing.
What load rating will I get?
Ratings depend on section, length, hardware and load direction. We confirm capacity for each position with test data designed with reference to ASTM D8019.