Key Features
- High Dielectric Strength: Strong, lightweight FRP material provides excellent electrical insulation and flame resistance.
- Lightweight Construction: Composite density far below metal alternatives, easing handling and installation.
- Fire- and Smoke-Retardant: Materials meet transit safety standards for flame spread and low smoke generation.
- Customized Profiles: Engineered cross-section to fit various third-rail shapes; available in multiple colors or conductivity schemes.
- Corrosion and UV Resistant: Fiberglass-reinforced plastic resists moisture, chemicals, and sunlight degradation, ideal for tunnels and outdoor systems.
Benefits
- Personnel Safety: Prevents accidental contact with live rails, reducing shock hazards. High insulation protects workers during maintenance.
- Low Maintenance: FRP does not rust or corrode, eliminating frequent repainting or replacement common with metal covers.
- Easy Retrofit: Can be installed on new or existing third-rail systems without major track alterations. Light weight allows quick mounting even in tight spaces.
- Enhanced Reliability: Resistant to arc-flash and impact, maintaining integrity in all weather, thus minimizing transit downtime.
Applications
- Subway and metro third-rail power systems (overrunning or underrunning rails)
- Light rail and commuter train electrification
- Transit depots and yards (as protective coverings on exposed electrified rails)
- Electrified rail retrofit projects requiring insulated cover boards
Technical Specifications
- Material: Glass-fiber-reinforced polyester (FGRP) or phenolic resin pultrusion
- Dimensions: Typically 50–100 mm thick and 100–300 mm wide; length per project requirements
- Mounting: Integrated FRP brackets or isolating hardware
- Standards: UL 94 V-0 flame rating; RoHS compliant
Unique Selling Points (USPs)
- Non-Conductive Composite: Unlike metal covers, FRP shrouds inherently insulate without additional coatings
- Ultralight: Weighs a fraction of steel or aluminum covers, greatly easing installation labor
- Rapid Installation: Pre-formed sections can be bolted on quickly; no welding needed