Standard glass insulator U120A

U120A is a standard disc-shaped suspension tempered glass insulator designed specifically for high-voltage transmission lines, which plays a critical role in insulation and suspension of conductors in power systems. Its core advantages are reflected in mechanical performance, electrical performance, thermal stability, and maintenance convenience.

Trustworthy design advantages

Zero value self explosion characteristic

Tempered glass insulators will automatically rupture when their insulation performance drops to a critical value, but the residual section still maintains tensile strength and electrical performance, avoiding line breakage accidents.

After self explosion, the residual hammer of the iron cap is hung on the line for easy positioning and replacement by operation and maintenance personnel, reducing maintenance costs.

Transparency and ease of inspection

The glass material is transparent and can detect small cracks and internal defects through visual inspection, without the need for disassembly or special equipment, improving inspection efficiency.

Lightweight and high strength

Compared to porcelain insulators, U120A has a weight reduction of about 30%, a smaller volume, and is easier to transport and install. At the same time, its mechanical strength has been increased by 1-2 times.

3、 Application scenarios

Voltage level: Suitable for 10kV to 330kV AC and DC transmission lines.

Environmental adaptability:

High altitude areas: The electrical strength is adjusted as the air density decreases, and the performance is confirmed to be stable.

Polluted areas: Pollution resistant designs (such as LXHY4-120) can be selected, with a 20% -30% increase in creepage distance compared to ordinary designs.

Extreme climate zone: The temperature resistance and arc resistance characteristics meet the needs of high temperature, lightning strikes, ice damage, etc.