Standard glass insulator U300B

U300B is a standard disc-shaped suspension tempered glass insulator designed specifically for high-voltage transmission lines, which plays a critical role in insulating and suspending conductors. Its core advantages are reflected in mechanical performance, electrical performance, thermal stability, and maintenance convenience.

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, U300B is lighter in weight, smaller in size, easier to transport and install, and has 1-2 times higher mechanical strength.

Application scenarios

Voltage level: Suitable for 110kV to 500kV 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: Anti fouling designs (such as U300BP/195H) 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.