Wholesale 100kN U100BD Double-Shed Type Glass Insulators IEC Standard for High Voltage Lines Factory, Factories

100kN IEC Standard Electrical Glass Insulator U100BLD (UG100B/146/450D) Double-Shed Type Glass Insulators for High Voltage Lines

U100 High Voltage Cap and Pin Type Anti-Fog Glass Insulator Isolator Toughened Double Shed Glass Electric Insulator

Two-Winged Glass Suspension Insulators PSD-100 B Type

Product Description

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Product Information

U100BLD Product Information
  • Model: U100BLD
  • U - Refers To Disc Suspension Insulator
  • 100 - Indicates a rated Mechanical failing load of 100kN
  • B - For Ball And Socket Type
  • L - For Long steel feet
  • D - For Double Shed profile glass Insulator
  • 280 - Diameter of the insulator disc: 280mm
  • 146 - Height of the insulator structure: 146mm
  • 450 - Creepage distance of the insulator: 450mm
  • Type: External shed profile Toughened Suspension Type
  • Rated mechanical load: 100kn (about 10tons)
  • Purpose: Primarily used in high-voltage transmission lines in areas with heavy pollution or humid, rainy conditions. Their double-shed design effectively enhances anti-pollution flashover performance.
  • Standard Compliance: IEC60383-1:1993, MOD / GB/T1001.1
  • Connection structure: GB/T4056-2008(IEC60120:1984,MOD) and BS 3288 part lll.
  • Locking device: W-pin or R-pin available. R pin is used for U100B by default.
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Product Drawing

U70BLD Glass Insulator Drawing
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Product Parameters

IEC designation U100BLD
Type Identification UG100B146/450D
Mechanical failing load (kN) 100
Nominal Diameter D (mm) 280
Nominal Spacing P (mm) 146
Creepage distance L (mm) 450
Socket coupling (mm) 16
Wet power frequency withstand voltage (kv) 45
Dry lightning impulse withstand voltage (kv) 120
Power frequency puncture voltage (kv) 110
Radio interference voltage (10kV 1MHz) (μv) 50
Corona visual test P/C (kv) 18/22
Power frequency electric arc voltage (0.12s/ka) 20ka
Impulse puncture voltage (P.U) 2.8
Net weight per unit (kg) 5.4
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Suspension Insulator Components

Glass Insulator Components

Suspension insulators consist of the following elements:

  • Dielectric: Made of toughened glass with specific properties and shape for environmental durability.
  • Cap: Hot-dip galvanized nodular or ductile malleable cast iron.
  • Pin: Hot-dip galvanized forged steel.
  • Assembly: Cap and pin are secured to the glass using high-strength aluminous cement to withstand thermomechanical stress.
  • Locking Device: Stainless steel or phosphor bronze split pin ensures secure coupling.
  • Corrosion Protection: Optional zinc sleeve (sacrificial anode) on pins for heavy pollution environments.
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Glass Insulator Shell Cross-section

Under long-term electrical stress, contaminants can trigger local arcs, leading to surface carbonization. This design provides sufficient creepage distance to disperse electric field strength and reduce discharge risks.

Cross-section analysis
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Product Display

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Frequently Asked Questions

What is the mechanical strength rating of the U100BLD insulator?
The U100BLD has a rated mechanical failing load of 100kN, which is approximately equivalent to 10 tons of force.
What makes the "Double Shed" design beneficial?
The double-shed profile is specifically designed for high-pollution and humid areas. It increases the creepage distance (450mm) to effectively prevent pollution flashovers.
Which international standards does this product comply with?
This insulator is manufactured in accordance with IEC60383-1, GB/T1001.1, and BS 3288 part lll standards.
What materials are used in the construction of these insulators?
They consist of a toughened glass dielectric, hot-dip galvanized nodular cast iron caps, and forged steel pins, all assembled with high-grade aluminous cement.
What type of locking pins are provided for connection?
The connection follows the ball and socket type. By default, an R-pin locking device is used for the U100B model, though W-pins can be provided upon request.
Is there extra protection available for corrosive environments?
Yes, for lines located in heavily polluted areas, we recommend adding an anti-corrosion zinc sleeve (sacrificial anode) to the steel pin to extend the insulator's lifespan.

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