In high-demand environments where safety, durability, and environmental protection are critical, traditional cable systems and metal-clad busbars often fall short. That’s why more engineers and facility managers are turning to a smarter solution: the Cast Resin Busway.
Engineered for outdoor, underground, and high-risk industrial environments, cast resin busways offer unmatched IP protection, fire resistance, and mechanical durability. If you're building or upgrading electrical infrastructure, this guide covers everything you need to know.
A cast resin busway, also known as a fully encapsulated busbar system, is a power distribution system where the conductors (usually copper or aluminum) are completely encased in flame-retardant epoxy resin. This design protects the system from moisture, corrosion, dust, fire, and mechanical impact.
Unlike traditional air-insulated or compact busducts, cast resin busways are built for extreme environments — including outdoor, coastal, chemical, or underground installations.
Thanks to complete resin encapsulation, cast resin busways provide IP68-rated protection, making them ideal for:
Coastal environments
Rain-exposed rooftops
Underground cable tunnels
Industrial wash-down zones
The resin casing is self-extinguishing and can operate under high temperatures. Ohory Electric cast resin busways meet fire protection standards including:
IEC 60331
BS6387
CNS14286
With no moving parts or air gaps, the cast structure resists:
Vibrations
Impact
Thermal expansion and contraction
It’s ideal for facilities with high mechanical stress or seismic activity.
Perfect for harsh industrial settings, especially:
Petrochemical plants
Food processing facilities
Wastewater treatment plants
The resin acts as a barrier against salt, acid, and industrial fumes.
The compact design and solid-state construction reduce:
Space requirements
Risk of internal short circuits
Ongoing maintenance and inspection
Cast resin busways are used in environments where protection, continuity, and reliability are essential:
Electrical substations
Outdoor rooftop power lines
Chemical and oil plants
Tunnels and underground cable corridors
Ports and marine terminals
Solar and wind power systems
Public infrastructure (airports, rail, metros)
Ohory Electric’s Cast Resin Busway Systems are made with:
T1-grade electrolytic copper or nano-enhanced aluminum conductors
Flame-retardant epoxy resin fully encapsulated for IP68 rating
Optional stainless steel outer housing for additional mechanical protection
Customized tap-off boxes available with thermal and leakage monitoring
Certified to UL 857, IEC 61439-6, and IP68
Up to 6300A current capacity
Smart monitoring integration (temperature, humidity, leakage, fire risk)
Engineered for easy installation in modular segments
Proven performance in global projects across Asia, Middle East, and Europe
Cast Resin Busway | IP68 Fire-Resistant Power Distribution – Ohory Electric
Explore Ohory Electric’s cast resin busway system—IP68-rated, fire-resistant, and ideal for outdoor or industrial power distribution. Certified, safe, and maintenance-free.
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If your project demands the highest levels of environmental protection, fire safety, and long-term reliability, a cast resin busway system is your best choice. And when it comes to quality, customization, and smart monitoring integration, Ohory Electric is the trusted partner for engineers, contractors, and facility owners worldwide.
Need help designing a cast resin busway for your next project? Contact Ohory Electric for engineering support, certified drawings, and competitive pricing.
