Toughened Glass Insulator U70BP/146M for Outdoor Use

High Voltage Aerodynamic Glass Insulators: Optimal Performance and Design

Glass insulators play a crucial role in overhead transmission lines, providing essential insulation and support for high voltage wires. Among their various types, the U70BP/146M aerodynamic glass insulator stands out for its advanced design and superior performance in challenging environments.

Structural Composition and Design

These insulators are composed of iron caps, tempered glass pieces, and steel feet, all bonded together using cement adhesive. The aerodynamic design of the insulator, including strategically shaped umbrella skirts, minimizes wind resistance, providing a significant advantage in strong wind environments like coastal areas and high mountain locations. The design not only reduces the lateral wind pressure on towers but also enhances air flow around the insulator, quickly dissipating moisture and reducing the risk of flashovers.

Technical Specifications

• Type: U70BP/146M
• Diameter (D): 380 mm
• Spacing (H): 146 mm
• Creepage Distance: 365 mm
• Coupling Size: 16 mm
• Mechanical Failing Load: 70 kN
• Mechanical Routine Test: 35 kN
• Power Frequency Withstand Voltage (Dry): 90 kV
• Power Frequency Withstand Voltage (Wet): 45 kV
• Lightning Impulse Withstand Voltage: 90 kV
• Minimum Power Frequency Puncture Voltage: 130 kV
• Net Weight: 5.3 kg

Exceptional Production Standards

Jiangxi Huayao Electric Co., Ltd. manufactures these insulators adhering to rigorous international standards such as IEC60383, ensuring superior quality and reliability. The company employs advanced production technology from Germany and Italy, boasting an annual production capacity of over 6 million pieces of AC and DC glass insulators.

Comprehensive Testing and Packaging

Each insulator undergoes a series of stringent tests to guarantee performance. These include:

• Verification of Dimensions
• Verification of Displacements
• Locking System Test
• Galvanization Test
• Thermal Shock Test
• Mechanical Failing Load Test
• Power Frequency Puncture Withstand Test

All products are packaged in standard export wooden cases, ensuring safe transport and delivery.

Versatile Applications

Huayao's high voltage insulators, including standard, pollution-resistant, aerodynamic, and other specialized types, are suitable for a wide range of applications across ultra-high voltage and extra high voltage transmission and transformation systems, significantly enhancing efficiency and reliability.