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Home > Standard Type > High-Quality High Voltage Suspension Insulator U160BL Toughed Glass Insulator for Transmission Line Manufacturers, Factory
High-Quality High Voltage Suspension Insulator U160BL Toughed Glass Insulator for Transmission Line Manufacturers, Factory
High-Quality High Voltage Suspension Insulator U160BL Toughed Glass Insulator for Transmission Line Manufacturers, Factory
High-Quality High Voltage Suspension Insulator U160BL Toughed Glass Insulator for Transmission Line Manufacturers, Factory
High-Quality High Voltage Suspension Insulator U160BL Toughed Glass Insulator for Transmission Line Manufacturers, Factory
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High-Quality High Voltage Suspension Insulator U160BL Toughed Glass Insulator for Transmission Line Manufacturers, Factory
High-Quality High Voltage Suspension Insulator U160BL Toughed Glass Insulator for Transmission Line Manufacturers, Factory
High-Quality High Voltage Suspension Insulator U160BL Toughed Glass Insulator for Transmission Line Manufacturers, Factory
High-Quality High Voltage Suspension Insulator U160BL Toughed Glass Insulator for Transmission Line Manufacturers, Factory

High-Quality High Voltage Suspension Insulator U160BL Toughed Glass Insulator for Transmission Line Manufacturers, Factory

Glass insulator is a device primarily used in electrical and telecommunications systems to support electrical conductors and isolate them from the surrounding environment. It is usually made of glass material with high resistance to current, which prevents the flow of current between conductors and structures. Then, by providing a barrier between conductors and structures (such as utility poles or towers), power insulators can prevent current leakage, arcing, and short circuits, which may occur if conductors come into direct contact with supporting structures. Discover top-notch high-voltage insulators for various applications, durable, reliable, and affordable.

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Product Description

Product Overview

High-Voltage Suspension Insulator U160BL
U160BL Details
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Model: U160BL (U: Disc Suspension, B: Ball and Socket, L: Long Steel Foot)
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Type: Standard Profile Toughened Suspension Type
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Rated Mechanical Load: 160 kN (Approximately 16 tons)
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Purpose: Designed for high-voltage transmission lines (110kV, 220kV, 500kV+). Used to form insulator strings for suspending wires or ground wires, especially at corner and terminal towers.
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Compliance: GB/T 7253-2005, JB/T9683-2012 (IEC60305:1995 MOD), GB/T4056-2008, and BS 3288 Part III.
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Connection: Standard R-pin locking mechanism (W-pin available upon request).

Structure and Materials

U160BL Structure
U160BL Materials
High Mechanical Strength

Features a heavy-duty iron cap and steel base, combined with tempered glass properties to achieve a failure load of 160KN.

Excellent Insulation

Tempered glass effectively isolates current; power frequency wet withstand voltage up to 55KV, lightning impulse up to 140KV.

Corrosion Resistance

Anti-corrosion treated metal fittings and chemically stable glass resist harsh environmental erosion.

Self-Cleaning Design

Smooth glass surfaces prevent dirt accumulation and utilize rain wash to maintain insulation performance.

Shape & Size Specifications:

  • Height Options: Available in 146mm, 155mm, and 170mm configurations to suit specific voltage levels.
  • Diameter: Large umbrella skirt design increases creepage distance, reducing flashover risks in polluted environments.
  • Standardized Connection: ISO cylindrical head structure ensures interchangeability and ease of installation.

Technical Parameters

IEC Designation Unit U160BS/146 U160BM/155 U160BL/170
Diameter Dmm280280280
Height Hmm146155170
Creepage Distance Lmm400400400
Socket Couplingmm202020
Mechanical Failing Loadkn160160160
Mechanical Routine Testkn808080
Wet Power Frequency Withstand Voltagekv454545
Dry Lightning Impulse Withstand Voltagekv110110110
Impulse Puncture VoltageP.U2.82.82.8
Power Frequency Puncture Voltagekv130130130
Radio Influence Voltageμv505050
Corona Visual Testkv18/2218/2218/22
Power Frequency Electric Arc Voltageka0.12s/20Ka0.12s/20Ka0.12s/20Ka
Net Weight Per Unitkg6.76.66.7

Frequently Asked Questions

What does the U160BL designation stand for?
"U" refers to a disc suspension insulator, "B" indicates a ball and socket type connection, "L" stands for a long steel foot, and "160" represents the rated mechanical failing load of 160kN.
Which voltage levels are suitable for this insulator?
The U160BL is commonly used in high-voltage transmission lines, including 110kV, 220kV, 500kV, and even higher voltage projects depending on the string configuration.
Why choose toughened glass over porcelain insulators?
Toughened glass insulators offer excellent self-cleaning properties, visible zero-value detection (they shatter when failed, making them easy to spot), and high mechanical reliability in extreme temperatures.
What is the difference between R-pin and W-pin?
These are locking pins for the ball and socket connection. The U160BL typically uses an R-pin as standard, but a W-pin can be provided based on specific utility requirements.
Does this product comply with international standards?
Yes, it is manufactured in accordance with IEC 60305, IEC 60120, and BS 3288 standards, ensuring global interchangeability and safety compliance.
What are the maintenance requirements for U160BL?
Due to its smooth glass surface and superior self-cleaning performance under rain, maintenance is minimal. It is highly resistant to industrial pollution and salt spray.

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