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West side of Jianshe Road, South side of Yongtai Road, Jizhou City, Hengshui City, China
FRP Grating for Solar Project Walkway
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FRP Grating Walkway‘s design, installation and purchasing guide for solar project
Selection of FRP grating specifications：
Thickness: The mainstream choice is 25mm (load-bearing ≤1 ton/㎡) or 30mm (load-bearing ≤3 tons/㎡), which needs to be determined according to the load of the photovoltaic array operation and maintenance vehicle or personnel.
Hole spacing: 38×38mm (excellent anti-slip performance) or 40×40mm (higher light transmittance), and the hole type is recommended to choose micropores to enhance anti-slip performance.
Color: Yellow-green (warning function) or gray (dirt-resistant) is recommended, and an anti-ultraviolet coating can be added to the surface to extend the outdoor service life.
Material: Flame-retardant resin (oxygen index ≥28) and alkali-free glass fiber must be selected to avoid fire risks in photovoltaic areas.
Processing precautions：
Cutting: It is recommended to use diamond cutting blades (thickness ≥2mm) to avoid fiber stratification. A 5mm margin should be reserved for the incision, and a resin edge sealant (such as epoxy resin) should be used to treat the cross section after grinding to prevent water absorption and aging.
Drilling: When the hole diameter is greater than 12mm, a stepped drill bit should be used, and the drilling speed should be controlled below 500rpm to avoid glass fiber drawing. The hole edge should be chamfered (R≥1mm) and sealed with glue.
Grinding: Use 80-120 grit sandpaper or tungsten steel grinding head to deal with burrs. The grinding direction should be along the grille texture to reduce fiber exposure.
Installation technical points：
Fixed method:
Type of clamp:
M-type clamp (applicable to 25mm thick grille, bolt spacing ≤400mm)
L-type clamp (edge fixed, stainless steel self-tapping screws STS4.8×25 are required)
C-type clamp (used for cantilevered parts, wind load resistance needs to be verified)
Connector material: 304 stainless steel is recommended (316 stainless steel is required in coastal areas).
Support frame:
When the span is ≤1.2m, glass fiber reinforced plastic beams (cross section ≥50×50mm) can be used;
The steel frame needs to absorb vibration.
Procurement suggestions：
Certification requirements: Products must provide ISO 9001 certification and SGS anti-aging test report (3000 hours QUV test).
Cost control:
For bulk purchases (≥500㎡), the manufacturer can be required to directly reserve installation holes during molding to reduce on-site processing costs.
Logistics protection:
It needs to be placed vertically during transportation, and EPE pearl cotton pads are used between layers to avoid lamination deformation.
Special environment response：
Salt spray environment: Choose vinyl ester resin-based grilles, and the fixtures must pass a 480-hour neutral salt spray test.
Cold regions: Use low-temperature resin (-60℃ impact strength retention rate ≥ 80%).
If specific load calculation or installation plan optimization is required, it is recommended to provide a project geological survey report and photovoltaic array layout diagram for special design.
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West side of Jianshe Road, South side of Yongtai Road, Jizhou City, Hengshui City, China
Tel: +86-15075823759
WhatsApp: +86-15075823759
Email: info@good-frp.com
