What are the performance characteristics of rod strut porcelain insulators?

The rod pillar porcelain insulator is mainly used for high-voltage electrical appliances or indoor power distribution devices for insulation and fixed conductors. Its performance characteristics mainly include the following aspects:
High mechanical strength: The rod strut porcelain insulator has the characteristics of high strength and low dispersion, which makes it safe and reliable during operation. It has a large margin of mechanical strength, which can withstand large external forces to ensure the stable operation of power equipment.
Good low temperature resistance: Under low temperature conditions, the bending failure strength of the insulator does not change significantly compared with room temperature, so it can be used in cold areas without affecting its performance.
Excellent pollution resistance: The pollution resistance of insulators mainly depends on the structure of the product and the shape of the umbrella skirt. Stain-resistant insulators can be used in medium, heavy and extra-heavy pollution areas, which can effectively prevent flashover accidents caused by pollution. Some of the insulators are also coated with PRTV coating on the outer surface, which further improves their stain resistance.
Good seismic performance: The rod pillar porcelain insulator has a high level of earthquake resistance, which can maintain the stability of the structure when natural disasters such as earthquakes occur.
Low radio interference: The rated voltage of 550kV insulator, at 1.1 times the maximum operating phase voltage, the generated radio interference is not more than 500uV, and the visible corona voltage is as high as 450kV, which helps to reduce electromagnetic interference in the power system.
Wide range of application: rod pillar porcelain insulator is suitable for power substation, distribution devices and power station electrical equipment with a nominal voltage of 10750kV (up to 1100kV for some products) of power frequency AC system, as insulation and support for conductive parts. At the same time, it can also be used in the ambient temperature range of -40°C+40°C and in areas with an altitude of no more than 4000m.
Simple structure and easy maintenance: rod pillar porcelain insulator has the advantages of simple structure, long service life and low maintenance workload. Its single-column construction makes installation and maintenance more convenient and quick.
In addition, according to the specific application scenarios and different voltage levels, rod strut porcelain insulators can also be divided into ordinary type, stain-resistant type and composite insulator and other types. Each of these different types of insulators has its own characteristics and can be used in different environments.

To sum up, rod pillar porcelain insulators have a variety of excellent performance characteristics and play an important role in the power system.