TG6-12-170X230 High Voltage Wall Bushing Technical Description The TG6-12-170X230 High Voltage Wall Bushing is a critical component designed for safe and reliable electrical insulation and conductor support in high-voltage applications. It is engineered to facilitate the passage of high-voltage conductors through walls, barriers, or enclosures while maintaining insulation integrity and mechanical stability under demanding operational conditions. Design and Construction The bushing features a robust design with a 170mm outer diameter and 230mm overall length, ensuring compatibility with standard wall penetrations. Its construction typically includes: - Insulating Core: Made from high-grade porcelain or composite materials, providing excellent dielectric strength and resistance to environmental factors such as moisture, UV radiation, and temperature fluctuations. - Conductive Element: A central conductor (usually copper or aluminum) designed to handle high current loads with minimal resistive losses. - Flange and Sealing System: A corrosion-resistant metal flange ensures secure mounting to walls or enclosures, while gaskets or O-rings prevent moisture ingress. - Grading Rings/Sheds: Optional grading rings or silicone rubber sheds may be included to optimize electric field distribution and reduce surface leakage currents. Electrical Performance - Rated Voltage: Suitable for systems up to 12kV, making it ideal for medium-voltage applications in substations, transformers, or industrial power distribution. - BIL (Basic Insulation Level): Designed to withstand standardized impulse voltages, ensuring protection against lightning strikes and switching surges. - Partial Discharge Resistance: Low partial discharge levels (<10pC) enhance long-term reliability. Mechanical and Environmental Features - Temperature Range: Operates reliably between -40°C to +70°C, with some variants rated for higher extremes. - Pollution Resistance: Creepage distance and material selection comply with IEC 60815 for polluted environments (e.g., coastal or industrial areas). - Fire Resistance: Non-flammable materials meet IEC 60694 standards for fire safety. Applications The TG6-12-170X230 bushing is widely used in: - Power transformers (wall penetrations for HV connections). - Switchgear and GIS (Gas-Insulated Systems). - Renewable energy systems (e.g., wind turbine converters). - Industrial plants requiring safe cable routing through barriers. Compliance and Testing The bushing adheres to international standards such as IEC 60137, IEEE Std 48, and undergoes rigorous tests including: - Power frequency and lightning impulse withstand tests. - Mechanical load tests (e.g., cantilever strength). - Thermal cycling and environmental aging tests. Advantages - Compact Design: Balances performance with space efficiency. - Low Maintenance: Sealed construction minimizes contamination risks. - Adaptability: Compatible with various mounting configurations. In summary, the TG6-12-170X230 High Voltage Wall Bushing combines advanced insulation technology, mechanical durability, and compliance with global standards to ensure safe, efficient power transmission in high-voltage infrastructure. Its versatility makes it a preferred choice for engineers prioritizing reliability in harsh electrical environments.