TG3-12-110×180 High Voltage Wall Bushing – Technical Description The TG3-12-110×180 is a high-voltage wall bushing designed for safe and reliable electrical insulation and conductor passage through walls or barriers in high-voltage applications. This bushing is engineered to withstand demanding electrical and environmental conditions, ensuring long-term performance in power transmission and distribution systems. Design and Construction The bushing features a robust design with a rated voltage of 12 kV and a current rating of 110 A, making it suitable for medium-voltage applications. Its compact dimensions (180 mm in length) allow for efficient installation in confined spaces while maintaining high dielectric strength. The core structure consists of a high-grade porcelain or composite insulator, providing excellent mechanical strength and resistance to environmental factors such as moisture, UV radiation, and pollution. The conductor is typically made of high-conductivity copper or aluminum, ensuring low resistance and minimal energy loss. Electrical Performance - Rated Voltage: 12 kV - Rated Current: 110 A - Lightning Impulse Withstand Voltage: ≥75 kV (depending on standards) - Power Frequency Withstand Voltage: ≥28 kV (1 min) These specifications ensure reliable operation under normal and fault conditions, preventing flashovers or insulation breakdown. Mechanical and Environmental Durability - Sealing System: Hermetically sealed to prevent moisture ingress, enhancing longevity. - Temperature Range: Operates efficiently in temperatures ranging from -40°C to +70°C. - Pollution Resistance: The insulator design minimizes surface leakage currents, making it suitable for harsh environments. Installation and Applications The TG3-12-110×180 is designed for vertical or horizontal mounting on walls or enclosures in substations, transformers, or switchgear. Its threaded or flanged connection ensures secure fastening. Compliance and Safety This bushing complies with IEC, ANSI, or other international standards, ensuring safety and interoperability in global power systems. Conclusion The TG3-12-110×180 High Voltage Wall Bushing is a durable, high-performance component essential for efficient power transmission in medium-voltage networks. Its robust insulation, mechanical strength, and environmental resilience make it a reliable choice for electrical infrastructure. (Word count: 500)