FCGW-12 Composite Dry-Type Wall Bushing for 12kV Systems

Safe and Maintenance-Free Indoor Wall Penetration for Medium Voltage Switchgear

The FCGW-12 composite dry-type wall bushing is a 12kV medium-voltage component designed for safe and reliable insulation through partition walls in switchgear or compact substations. Unlike oil-immersed bushings, the FCGW-12 is completely dry-insulated, lightweight, pollution-resistant, and requires no maintenance. Its epoxy-silicone composite structure ensures long-term mechanical strength and electrical stability under varying indoor conditions.

FCGW-12 Composite Dry-Type Wall Bushing for 12kV Systems

【Get a Custom Quote Now】

Key Features & Advantages

Lightweight & Easy to Install: Made from epoxy resin and silicone rubber, its lightweight and high strength significantly reduce installation difficulty and transportation costs.
Safe and Maintenance-Free: Its dry design eliminates the need for oil or gas filling, fundamentally preventing fire or explosion risks and enabling a truly maintenance-free operation.
Pollution-Resistant & Highly Reliable: The specialized composite material surface offers superior anti-fouling performance, ensuring stable operation even in humid or dusty environments.
Compact Design for Space Optimization: The bushing's compact structure is a perfect fit for space-constrained equipment like box-type substations and RMU cabinets.

Technical Specifications

Parameter	Value
Rated Voltage	12kV
Power Frequency Withstand	42kV / 1 min
Lightning Impulse Withstand	75kV
Rated Current	630A or 1250A
Creepage Distance	≥ 300mm
Partial Discharge	≤ 5pC under 1.1Ur
Ambient Temp Range	-40°C to +70°C
Installation Type	Through-wall, flange-mounted

Case in Point: Australian Mining Substation Upgrade

In 2023, an Australian mining substation in Perth integrated the FCGW-12 bushings into 14 compact switchgear units. Compared to legacy porcelain wall bushings, the plant recorded zero insulation failures over 18 months and reduced cabinet depth by 22%, optimizing layout (Source: WDS Energy Report No. AUMV-2023-03).

FCGW-12 Composite Dry-Type Wall Bushing for 12kV Systems

Application Scenarios

Indoor MV Switchgear Penetration: Used between primary compartments or between SF6/gas-tight chambers and control rooms
Box-Type Substations: Installed on side or rear partitions for primary cable passage
Compact RMU Cabinets: Enable separation between load and breaker compartments
Transformer Control Rooms: Safe passage for HV cables without exposed terminals

Real Customer Feedback

★★★★★ “Our MV switchboards use FCGW-12 bushings exclusively now. They’re safer and save internal space.” — Michael L., Project Lead, E-Power Systems UK
★★★★☆ “Reliable dry insulation, no leaks or contamination even after 2 years in a paper mill environment.” — Gina P., Facility Engineer, Grand River Utilities, Canada
★★★★★ “The creepage margin and build quality exceed IEC specs. We’ve replaced all old ceramic types.” — Jake M., Site Manager, Grid One Installers (Germany)
★★★★★ “Simple installation and no oil to maintain. Perfect for modular RMUs in metro substations.” — Ravi N., MV Design Consultant, Dubai
★★★★☆ “Used in a 12-panel smart switchgear row. No discharge issues reported during testing.” — Angela C., QA Inspector, PowerTech California

FCGW-12 Composite Dry-Type Wall Bushing for 12kV Systems

Frequently Asked Questions (FAQ)

Is a dry-type bushing better than an oil-immersed one?

Yes. Our dry-type bushings eliminate leak and explosion risks associated with oil-filled models, making them safer, more environmentally friendly, and lower-cost to maintain.