Material properties (FRP/fiberglass)

Material composition: alkali free glass fiber (50% -60%)+unsaturated polyester/epoxy resin (30% -40%)+flame retardant/UV resistant additives.

core parameters

• Density: 1.8-2.1g/cm ³ (1/4 of steel).

• Tensile strength: ≥ 200MPa; Bending strength ≥ 250MPa.

• Insulation: Volume resistivity ≥ 1 × 10 ΩΩ· m, non-conductive, no eddy current.

• Flame retardancy: Oxygen index ≥ 32% (B1 level flame retardant), up to UL94 V-0 level.

• Corrosion resistance: acid, alkali, salt spray, no corrosion after 5000 hours of salt spray test.

• Temperature resistance: -50 ℃~+120 ℃ for long-term use.

Standard Specification (NB/T 10287-2019)

• Common width: 100/200/300/400/500/600/800mm.

• Common height: 50/100/150/200mm.

• Standard length: 2m/4m/6m.

• Minimum thickness:Width ≤ 150mm: 3.0mm；150 ＜ Width ≤ 300mm: 3.5mm；300<width ≤ 500mm: 4.0mm.

Process Description

• Pultrusion molding (mainstream): continuous production, high strength, smooth surface; Used for straight sections and large quantities.

• Compression molding: High precision (± 0.5mm), suitable for elbows/tees/irregular parts.

• Vacuum import: porosity ≤ 1%, suitable for high anti-corrosion/high-strength scenarios.

Structural Description

Slot type (fully enclosed): dustproof and waterproof (IP55), anti-interference; Suitable for weak current/precision cables.

Tray type (with holes): good heat dissipation and strong load-bearing capacity; Suitable for power cable/workshop wiring.

Cascade (open): optimal heat dissipation and lightweight; Suitable for large-diameter cables/overhead laying.

Attachments: elbows, tees, tees, reducers, brackets, hangers, cover plates (homogeneous anti-corrosion).

Application scenarios

• Chemical/Petrochemical: workshops, storage tank areas, offshore platforms (acid and alkali resistant).

• Electricity/new energy: substations, photovoltaic/wind farms, power plants (insulation, anti electromagnetic interference).

• Rail transit: subway tunnels, high-speed railway stations (fireproof, moisture-proof, lightweight).

• Municipal/Pipe Gallery: Underground comprehensive pipe gallery, tunnel (long service life, maintenance free).

• Data center: Cabling in the computer room (flame retardant, eddy current free, signal isolation).

Installation Instructions

• Spacing between supports and hangers: horizontal 1.5-3m; vertical ≤ 2m; reinforced brackets should be added at turning points.

• Splicing: Special connection plate, bolts from inside out, anti scratch cable.

• Expansion and contraction treatment: Expansion joints (reserved for 20-30mm) shall be installed for straight sections exceeding 15m.

• Grounding: Non metallic cable trays are equipped with copper braided strips for grounding; The metal bracket is connected to the grounding main line.

• Cutting: Diamond grinding wheel cutting, the incision is coated with resin glue to prevent fiber exposure.

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Case engineering

• Chemical industry: A petrochemical project (vinyl ester bridge) has reduced maintenance costs by 82% over 10 years.

• Rail transit: A certain subway tunnel (flame retardant groove type) has a 100% pass rate for fire safety inspection.

• New Energy: Xinjiang Photovoltaic Power Station (UV resistant ladder type), stable operation at -40 ℃ low temperature.

• Ocean engineering: Zhoushan Cross Sea Bridge supporting (high salt spray resistance), with a lifespan 2-3 times that of metal bridge frames.