120kN Toughened Glass Insulator U120BL, High Voltage

Introduction to Glass Insulators

Glass insulators are essential components used in overhead transmission lines, providing necessary insulation and support for wires. The 120kN standard disc suspension glass insulator, particularly the U120BL model, is highly renowned in markets such as China, Vietnam, Iran, and Algeria. These insulators play a critical role in ensuring the stable and efficient operation of electrical transmission lines.

Structural Composition of Glass Insulators

Glass insulators are typically made up of iron caps, tempered glass pieces, and steel feet, all bonded together using cement adhesive. This robust construction ensures durability and reliability in various environmental conditions.

Main Types of Glass Insulators

• Standard Type
• Pollution Resistant Type
• DC Type
• Spherical Type
• Aerodynamic Type
• Ground Wire Type
• Contact Network for Electrified Railways

Specifications of 120kN Standard Disc Suspension Glass Insulator U120BL

• Diameter: 255mm
• Spacing: 127mm
• Creepage Distance: 320mm
• Mechanical Load: 120kN
• Dry Power-frequency Withstand Voltage: 70kV
• Wet Power-frequency Withstand Voltage: 40kV
• Net Weight: 3.6kg

Advantages of Glass Insulators

• High Mechanical Strength: Capable of withstanding significant mechanical loads, including wind and ice loads, ensuring stability even in severe weather conditions.
• Good Insulation Performance: Glass insulators inherently prevent current leakage, maintaining stable insulation performance over time.
• Zero Value Self-Explosion: A unique feature where insulators automatically break when insulation diminishes to a critical level, enabling easy detection of faults.

Production Process Flow

The production of glass insulators at Jiangxi Huayao Electric Co., Ltd involves several stages:

1. Mixing Raw Material
2. Melting Glass Liquid
3. Pressing to Glass Insulator Shape
4. Tempering Treatment
5. Cold and Shock Test
6. Glue Assembly
7. Routine and Other Tests
8. Finished Products Packaging

Compliance and Testing Standards

Jiangxi Huayao Electric Co., Ltd adheres to several international standards, including:

• GB/T1001.1-2021
• GB/7253-2019
• IEC 60383-1:2023
• IEC 60120:2020

Packaging and Shipping Details

Glass insulators are packed in standard export wooden cases or non-fumigation wooden boxes, ensuring safe transport. The company maintains a high production capacity with a daily output of 10,000 pieces, and offers a flexible payment and shipping option to cater to various customer needs.