TG1A-40.5-(450) Epoxy Resin Through Wall Bushing – Technical Description The TG1A-40.5-(450) Epoxy Resin Through Wall Bushing is a high-voltage electrical component designed for safe and reliable power transmission in substations, switchgear, and other high-voltage applications. It serves as an insulated passage for conductors through walls, barriers, or enclosures, ensuring electrical isolation while maintaining mechanical stability. Key Features 1. Voltage Rating - Rated for 40.5 kV, making it suitable for medium to high-voltage systems. - Withstands standard power frequency and impulse voltages per IEC or ANSI standards. 2. Current Capacity - Continuous current rating of 450 A, ensuring efficient power transmission without overheating. 3. Epoxy Resin Insulation - The bushing utilizes high-grade epoxy resin for superior dielectric strength, moisture resistance, and thermal stability. - The resin encapsulation provides excellent mechanical rigidity, preventing cracks or degradation under electrical and environmental stress. 4. Robust Construction - Aluminum or copper conductor ensures low resistance and high conductivity. - Flange-mounted design allows secure installation through walls or panels. - Corrosion-resistant materials ensure long-term durability in harsh environments. 5. Safety & Compliance - Meets international standards such as IEC 60137, IEEE C57.19.00, or equivalent. - Designed to prevent partial discharge and flashover, enhancing operational safety. Applications - Substations & Switchgear: Facilitates safe conductor routing through grounded barriers. - Power Transformers: Acts as an insulated terminal for high-voltage connections. - Industrial Power Systems: Used in mining, oil & gas, and renewable energy installations. Advantages - Maintenance-Free: Epoxy resin eliminates the need for oil or gas insulation. - Compact & Lightweight: Easier to install compared to porcelain bushings. - Environmental Resistance: Performs reliably in humid, dusty, or chemically aggressive conditions. Conclusion The TG1A-40.5-(450) Epoxy Resin Through Wall Bushing is a critical component for high-voltage installations, offering exceptional insulation, durability, and safety. Its epoxy resin construction ensures long-term reliability, making it an ideal choice for modern power distribution systems.