TG2A-40.5-(395) 40.5kV Epoxy Wall Bushing – Technical Description The TG2A-40.5-(395) 40.5kV Epoxy Wall Bushing is a high-voltage electrical component designed for safe and reliable power transmission in substations, switchgear, and transformers. Rated for 40.5kV, this bushing ensures efficient insulation and mechanical stability while connecting indoor or outdoor equipment to overhead lines or other high-voltage systems. Design and Construction The bushing features a robust epoxy resin housing, which provides excellent dielectric strength, moisture resistance, and thermal stability. The epoxy material is highly resistant to environmental factors such as UV radiation, pollution, and temperature fluctuations, ensuring long-term performance in harsh conditions. The central conductor is typically made of high-conductivity copper or aluminum, optimized for low electrical losses and high current-carrying capacity. The conductor is embedded within the epoxy insulation, which prevents partial discharges and minimizes the risk of flashovers. Key Features 1. Voltage Rating: 40.5kV (suitable for medium-voltage applications). 2. Current Rating: Designed to handle specified load currents (exact value depends on conductor size). 3. Creepage Distance: The 395mm creepage distance ensures reliable insulation even in polluted or humid environments. 4. Mechanical Strength: The epoxy housing provides high mechanical rigidity, reducing the risk of cracking or damage during installation or operation. 5. Flame Retardancy: The epoxy material is self-extinguishing, enhancing safety in case of electrical faults. 6. Compact Design: Suitable for wall-mounted installations in switchgear or transformer compartments. Applications - Substations: Used in circuit breakers, disconnect switches, and transformers. - Switchgear: Provides a secure connection between indoor/outdoor equipment. - Renewable Energy Systems: Compatible with wind and solar power installations. Installation & Maintenance The bushing is designed for vertical or horizontal mounting, with flanges or fixing bolts for secure attachment. Proper torque application during installation is critical to avoid mechanical stress. Routine inspections should check for surface contamination, cracks, or signs of overheating. Advantages Over Traditional Bushings Compared to porcelain or composite bushings, the epoxy resin construction offers: - Better pollution resistance (reduced risk of tracking). - Lighter weight, simplifying handling and installation. - Superior mechanical durability against vibrations and impacts. Conclusion The TG2A-40.5-(395) 40.5kV Epoxy Wall Bushing is a high-performance solution for medium-voltage power distribution, combining advanced insulation technology with robust mechanical design. Its reliability, safety, and environmental resilience make it an ideal choice for modern electrical infrastructure. (Word count: ~500)