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12/02

2025

The function of crossarm insulators

The function of crossarm insulators

The crossarm is a supporting component in power lines, typically made of steel or wooden poles.

12/02

2025

What is a U-shaped porcelain bottle?

What is a U-shaped porcelain bottle?

The I-shaped porcelain insulator is a commonly used insulator in high-voltage transmission lines, primarily used to support and insulate conductors.

12/02

2025

Where are butterfly insulators typically installed?

Where are butterfly insulators typically installed?

The butterfly insulator, an important component in power systems, is primarily used in low-voltage distribution lines. Its main functions include supporting conductors, preventing current from flowing to ground, and isolating electrical equipment, thereby ensuring the normal operation of the power system. Thanks to its unique design and excellent electrical performance, the butterfly insulator has found widespread application in the power industry.

12/02

2025

The Role and Importance of Insulators

The Role and Importance of Insulators

Insulators, commonly known as porcelain insulators, are insulating devices used to support conductors. In earlier times, insulators were mainly used on utility poles. Over time, they evolved to be suspended in large numbers at one end of high-voltage transmission towers—these disc-shaped insulators serve to increase the creepage distance. Typically made from glass or ceramic, they are referred to as insulators.

12/02

2025

Valuable information! Classification and applications of insulators

Valuable information! Classification and applications of insulators

High-voltage line porcelain cross-arm insulators can be classified into four types according to their structural forms: all-porcelain type, cement-bonded type, single-arm type, and V-shaped type. They can also be categorized into two installation types: upright type and horizontal type. Based on the 50% full-wave impulse flashover voltage, they are available in the following voltage ratings: 185 kV, 210 kV, 280 kV, 380 kV, 450 kV, and 610 kV. These insulators are used in high-voltage overhead transmission and distribution lines, where they can replace pin-type and suspension insulators and eliminate the need for tall porcelain crossarms.

12/02

2025

Some things you should know about insulators

Some things you should know about insulators

Insulators of various types in China have been subjected to the rigorous tests of special operating environments, including long-term icing, high altitude, pollution, high temperatures, low temperatures, ultraviolet radiation, rainwater exposure, lightning strikes, earthquakes, and typhoons.

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