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Home > Standard Type > High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory
High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory
High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory
High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory
High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory
High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory
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High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory
High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory
High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory
High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory
High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory

High-Quality Good Quality High Voltage 100kN Disc Suspension Toughened Glass Insulator U100BS Manufacturers, Factory

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Product Description

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Product Video Demonstration

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Product Information

U100BS Insulator
  • Model: U100BS
  • U - Refers To Disc Suspension Insulator
  • 100 - Indicates a rated Mechanical failing load of 100kN
  • B - For Ball And Socket Type
  • S - Stands For Short Steel Foot
  • 127 - Height of the insulator structure (127mm); 146mm spacing also available.
  • 255 - Diameter of the insulator disc (255mm); other sizes include 280mm to 420mm.
  • 320 - Creepage distance of the insulator (320mm); options up to 550mm available.
  • Type: Standard profile Toughened Suspension Type
  • Rated mechanical load: 100kn (approx. 10 tons)
  • Purpose: Insulation support for medium and high voltage transmission lines and substation equipment across various climates.
  • Complies with IEC60383-1:1993 and GB/T1001.1 standards.
  • Connection structure follows GB/T4056-2008 (IEC60120:1984) and BS 3288 part III.
  • Locking pin available as W-pin or R-pin (W-pin is standard for U100BS).
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Technical Drawing

Technical Drawing
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Product Parameters

Glass Insulator IEC Designation U100BS/127 U100BL/146
Mechanical failing loadkn100100
Diameter Dmm255255
Height Hmm127146
Creepage distance Lmm320320
Socket couplingmm1616
Wet power frequency withstand voltagekv4040
Dry lightning impulse withstand voltagekv100100
Power frequency puncture voltagekv130130
Radio interference voltage (10kV 1MHz)μv5050
Corona visual testkv18/2218/22
Power frequency electric arc voltageka0.12s/20kA0.12s/20kA
Impulse puncture voltageP.U2.82.8
Net weight per unitkg44
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Suspension Insulator Components

Components Diagram

Suspension insulators consist of the following elements:

  • Dielectric made of toughened glass with specific environmental properties.
  • Hot-dip galvanized nodular or ductile malleable cast iron cap.
  • Hot-dip galvanized forged steel pin.
  • Assembly using high-grade aluminous cement for thermomechanical strength.
  • Stainless steel or phosphor bronze locking device (split pin).
  • Optional anti-corrosion zinc sleeve for heavy pollution environments.
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Shell Cross-section & Performance

Under long-term electrical stress, contaminants can trigger local arcs, leading to surface carbonization (electrocorrosion). Our design provides sufficient creep distance to disperse the strength of the electric field, reducing local discharge risk and extending service life.

Creepage measurement
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Detailed Photos

Chain Isolator & Glass Shell Details:

Detail 1
Detail 2
Detail 3
Detail 4
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Frequently Asked Questions

1. What does the "U100BS" model name signify? The "U" stands for Disc Suspension Insulator, "100" indicates a 100kN rated mechanical failing load, "B" denotes the Ball and Socket connection type, and "S" refers to the Short Steel Foot design.
2. Which international standards do these insulators meet? These products are designed and manufactured in accordance with IEC60383-1:1993, GB/T1001.1, and the connection structures follow IEC60120:1984 and BS 3288 standards.
3. Why is toughened glass used for the dielectric component? Toughened glass provides superior mechanical strength and reliable electrical insulation properties, ensuring stable operation under various climatic conditions and high-voltage stress.
4. What is the benefit of the optional zinc sleeve? The zinc sleeve acts as a sacrificial anode to provide anti-corrosion protection for the pin, which is highly recommended for insulators used in environments with heavy pollution.
5. Can the locking pins be customized? Yes, according to customer requirements, we can provide either W-pin or R-pin locking devices. If no special instruction is provided, the standard W-pin is used for the U100BS model.
6. How does the design prevent electrocorrosion? By ensuring sufficient creepage distance (e.g., 320mm for the U100BS), the design disperses the strength of the electric field, which significantly reduces the risk of local arcs and surface carbonization.

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