TG4-12-140×200 12KV Epoxy Resin Through Wall Bushing – Technical Description The TG4-12-140×200 12KV Epoxy Resin Through Wall Bushing is a high-performance electrical insulation component designed for safe and reliable power transmission in medium-voltage applications. This bushing is engineered to facilitate the passage of conductors through walls, barriers, or enclosures while maintaining electrical insulation and mechanical stability under demanding conditions. Key Features 1. Voltage Rating - Rated for 12KV (12,000 volts), this bushing is suitable for medium-voltage systems, ensuring secure insulation between live conductors and grounded surfaces. 2. Epoxy Resin Construction - Manufactured from high-quality epoxy resin, the bushing offers excellent dielectric strength, thermal stability, and resistance to environmental factors such as moisture, chemicals, and UV radiation. - Epoxy resin provides superior mechanical rigidity, preventing deformation under mechanical stress or temperature fluctuations. 3. Dimensions & Design - The designation 140×200 refers to the bushing’s physical dimensions (e.g., flange diameter and length), ensuring compatibility with standard wall penetrations. - The through-wall design allows for easy installation in panels, switchgear, or transformer enclosures, maintaining a sealed and insulated pathway. 4. Electrical Performance - High creepage distance and tracking resistance minimize the risk of surface discharge, even in polluted or humid environments. - Low partial discharge levels ensure long-term reliability in high-voltage applications. 5. Mechanical Durability - Robust construction withstands mechanical vibrations, thermal cycling, and short-circuit forces. - Flame-retardant properties enhance safety in case of electrical faults. 6. Applications - Ideal for transformers, switchgear, distribution panels, and industrial power systems where conductors must pass through walls or grounded barriers. - Suitable for indoor and outdoor use, provided environmental conditions align with the epoxy resin’s specifications. Installation & Maintenance - Proper installation involves securing the bushing in the wall penetration and ensuring conductor connections are tight and corrosion-free. - Periodic inspection for cracks, contamination, or signs of electrical tracking is recommended to maintain performance. Advantages Over Traditional Bushings - Epoxy resin outperforms porcelain or silicone in mechanical strength and resistance to cracking. - Lightweight yet durable, reducing structural load on installations. - Maintenance-free operation under normal conditions. Conclusion The TG4-12-140×200 12KV Epoxy Resin Through Wall Bushing is a critical component for safe and efficient power distribution in medium-voltage systems. Its combination of high dielectric strength, environmental resilience, and mechanical robustness makes it a reliable choice for modern electrical infrastructure. (Word count: 500)