High Voltage 70kN Glass Insulators U70BS
Introduction to Glass Insulators for Overhead Transmission Lines
Glass insulators are essential components in overhead transmission lines, providing both insulation and support for wires. One of the most popular models, the 70kN standard disc suspension glass insulator U70BS, is widely used in the Chinese market as well as in international markets, including Vietnam, Iran, and Algeria.
Detailed Specifications of U70BS Glass Insulator
- Diameter (D): 255mm
- Spacing (H): 127mm
- Creepage Distance: 320mm
- Coupling Size: 16mm
- Mechanical Failing Load: 70kN
- Tension Proof: 35kN
- Dry Power-frequency Withstand Voltage: 70kV
- Wet Power-frequency Withstand Voltage: 40kV
- Dry Lightning Impulse Withstand Voltage: 100kV
- Puncture Withstand Voltage: 130kV
- Net Weight, Approximate: 3.5kg
Structural Composition
The glass insulator consists of iron caps, tempered glass pieces, and steel feet, which are bonded together using a cement adhesive. This robust structure ensures durability and reliability in various environmental conditions.
Main Types of Glass Insulators
Glass insulators come in various types to cater to different needs:
- Standard Type: 40-550Kn
- Pollution Resistant Type: 70-400Kn
- Multi-umbrella Type: 120-330kN
- Aerodynamic Type: 120-300kN
- Ground Wire Type
Production Process
Jiangxi Huayao Electric Co., Ltd follows a meticulous production process for glass insulators:
- Mix raw material
- Melt glass liquid
- Press to glass insulator shape
- Tempering treatment
- Cold and shock test
- Glue assembly
- Routine test and other tests
- Finished products package
Quality Standards and Testing
Glass insulators at Jiangxi Huayao Electric Co., Ltd are manufactured in strict compliance with international standards such as IEC 60383 and GB/T specifications. Rigorous testing is conducted, including:
- Verification of the Dimensions
- Verifications of Displacements
- Locking system test
- Galvanized test
- Thermal shock test
- Mechanical Failing Load Test
- Power frequency puncture withstand test
Global Reach and Customer Trust
With a daily output of 10,000 pieces, Jiangxi Huayao Electric Co., Ltd is a trusted supplier of glass insulators, serving clients both domestically and internationally. Our products are known for their quality and reliability in the market.
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