120 kN High Voltage Glass Insulator U120BP-1
Overview of 120kN Standard Disc Suspension Glass Insulator U120BP-1
The U120BP-1 is a prominent glass insulator widely used in both the Chinese and international markets, including countries such as Vietnam, Iran, and Algeria. Manufactured by Jiangxi Huayao Electric Co., Ltd, this insulator is notable for its impressive daily output of 10,000 pieces.
Structural Composition
Glass insulators are composed of iron caps, tempered glass pieces, and steel feet, bonded together with cement adhesive. These insulators play a critical role in overhead transmission lines, providing necessary insulation and support for wires.
Types of Glass Insulators Produced
- Standard Type: 40-550Kn
- Pollution Resistant Type: 70-400Kn
- Multi-Umbrella Type: 120-330kN
- Aerodynamic Type: 120-300kN
- Ground Wire Type
Pollution Resistant Type Glass Insulator
This type includes key models such as U70BP/146, U100BLP/146, and U120BP/146, each with specific technical parameters, including diameter, spacing, creepage distance, and mechanical failing load.
Technical Specifications
IEC Type Parameters
| Model | Diameter (D mm) | Spacing (H mm) | Creepage Distance (L mm) | Mechanical Failing Load (kN) | Dry Power-frequency Withstand Voltage (kV) |
|---|---|---|---|---|---|
| U70BP/146 | 260 | 146 | 400 | 70 | 80 |
| U120BP/146 | 320 | 146 | 550 | 120 | 90 |
Advantages of Glass Insulators
- Good Insulation Performance: The inherent insulation properties of glass prevent current leakage in high-voltage lines, ensuring stable and long-term power transmission.
- Zero Value Self Explosion: A unique feature where glass insulators self-destruct when insulation performance declines, facilitating easy detection of faults for timely maintenance and replacement.
Production Process
The production process at Jiangxi Huayao Electric Co., Ltd includes the following steps:
- Mix Raw Material
- Melt Glass Liquid
- Press to Shape
- Tempering Treatment
- Cold and Shock Test
- Glue Assembly
- Routine Test and Packaging
Compliance and Testing Standards
All products comply with standards such as GB/T1001.1-2021 and IEC 60383-1:2023. Tests performed include dimension verification, thermal shock test, and mechanical failing load test.
Application Areas
Glass insulators are essential in high-voltage and ultra-high voltage transmission lines, supporting the safe and stable operation of power networks in urban areas and challenging environments such as coastal regions and mountainous areas.
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