TG7-15 15kV Epoxy Resin Wall Bushing Technical Description The TG7-15 15kV Epoxy Resin Wall Bushing is a high-performance electrical insulation component designed for medium-voltage applications, specifically rated for 15 kilovolts (kV). It is widely used in power distribution systems, transformers, switchgear, and other electrical equipment where reliable insulation and mechanical stability are critical. Construction and Materials The bushing is constructed using high-quality epoxy resin, a thermosetting polymer known for its excellent dielectric strength, thermal stability, and resistance to environmental factors such as moisture, chemicals, and UV radiation. The epoxy resin is reinforced with high-grade fillers to enhance mechanical strength and prevent cracking under thermal or electrical stress. The internal conductive core is typically made of copper or aluminum, ensuring low resistance and efficient current transmission. The conductive element is embedded within the epoxy resin, providing a seamless insulation barrier that prevents partial discharge and electrical tracking. Key Features 1. High Dielectric Strength – The epoxy resin insulation ensures reliable performance under high-voltage conditions, withstanding impulses and transient overvoltages. 2. Excellent Mechanical Strength – The robust construction resists mechanical stress, vibration, and thermal expansion, making it suitable for harsh environments. 3. Weather and Chemical Resistance – The bushing is resistant to moisture, dust, oils, and corrosive substances, ensuring long-term durability. 4. Flame Retardant – The epoxy material is self-extinguishing, meeting industry safety standards for fire resistance. 5. Compact and Lightweight Design – The wall bushing is designed for easy installation in confined spaces while maintaining high insulation performance. Applications - Transformers – Used as feed-through bushings for low-to-medium voltage power transformers. - Switchgear and Circuit Breakers – Provides insulation for conductors passing through grounded metal enclosures. - Renewable Energy Systems – Suitable for solar and wind power installations requiring durable insulation solutions. - Industrial Power Distribution – Ensures safe and reliable connections in substations and power distribution panels. Installation and Maintenance The TG7-15 15kV Epoxy Resin Wall Bushing is designed for wall or panel mounting, with threaded or flanged options available for secure attachment. Proper torque should be applied during installation to avoid mechanical stress. Routine inspections should check for cracks, surface contamination, or signs of overheating to ensure continued reliability. Compliance and Standards The bushing complies with international electrical standards, including IEC, ANSI, and other regional certifications, ensuring safety and performance in diverse applications. Conclusion The TG7-15 15kV Epoxy Resin Wall Bushing is a dependable solution for medium-voltage insulation, offering superior electrical and mechanical properties. Its robust epoxy resin construction, combined with resistance to environmental factors, makes it an ideal choice for power distribution systems requiring long-term reliability and safety.