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China U120BP Fog Type Porcelain Insulator Suppliers, Factories
China U120BP Fog Type Porcelain Insulator Suppliers, Factories
China U120BP Fog Type Porcelain Insulator Suppliers, Factories
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China U120BP Fog Type Porcelain Insulator Suppliers, Factories
China U120BP Fog Type Porcelain Insulator Suppliers, Factories
China U120BP Fog Type Porcelain Insulator Suppliers, Factories

China U120BP Fog Type Porcelain Insulator Suppliers, Factories

  • 120kn Anti-Fog Disc Type Porcelain/Ceramic Insulator Disc Suspension Porcelain Insulator U120BP/146H
  • U120BP/146H is a universal model used by IEC, corresponding to models from Chinese manufacturers such as LXHP4-120, LXHP-120, FC120P/146, etc.
  • This type of insulator is widely used in overhead transmission lines, especially suitable for coastal areas, heavy industrial areas, areas with severe air pollution or high humidity such as foggy and dusty areas, as well as high altitude and high voltage level lines. When selecting, it is necessary to determine the required creepage distance and umbrella skirt structure based on the pollution level of the specific line
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Product Description

Dimensional Data

Spacing (S)146 ± 4.6mm
Diameter (D)280 ± 12.7mm
Creepage Distance (C/D)450mm
Ball & Socket Size16mm

Mechanical Values

Electro Mechanical Failing Load125kN

Electrical Ratings

Power Frequency Puncture Voltage120kV
Power Frequency Withstand Voltage (Wet) - 5 pieces140kV
Power Frequency Withstand Voltage (Wet) - Uniwafer45kV
Dry Lightning Impulse Withstand Voltage - 5 pieces500kV
Dry Lightning Impulse Withstand Voltage - Uniwafer120kV

Radio-influence Voltage & Thermal

RIV Test Voltage (RMS to ground)10kV
Maximum RIV at 1000 kHz50μV
Corona Visual Test P/C18/22kV
Temperature Heat Range-40℃ ~ +40℃

Packing Information

Approx. Net Weight per Unit5.4kg
Insulators per Wooden Crate6 Units

Industry Standards

All tests and dimensional tolerances are strictly in accordance with GB/T1001.1-2021.

Product Drawing

Disc Insulator Anti Type-U120BP-146-450

Frequently Asked Questions

What is the creepage distance of the U120BP insulator?
The U120BP disc insulator features a creepage distance of 450mm, designed for reliable performance in various environmental conditions.
What mechanical load can this insulator withstand?
It has an electromechanical failing load rating of 125kN, ensuring high structural integrity for overhead line support.
Which industry standards does this product follow?
This insulator is manufactured and tested in strict accordance with the GB/T1001.1-2021 industry standard.
What is the weight and packaging configuration?
Each unit weighs approximately 5.4kg. For transport safety, they are typically packed with 6 insulators per wooden crate.
What is the applicable temperature range for operation?
The insulator is designed to operate efficiently within a temperature range of -40℃ to +40℃.
What are the electrical withstand ratings for a 5-piece string?
A string of 5 units provides a power frequency withstand voltage (wet) of 140kV and a dry lightning impulse withstand voltage of 500kV.

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