Disadvantages of ceramic insulators: Defects are not easy to discover and are only discovered after several years of operation; zero-value detection of ceramic insulators requires climbing a tower to conduct piece-by-piece inspections, which requires a lot of manpower and material resources; accidents caused by lightning strikes and pollution flashovers The probability is high.
Advantages of composite insulators: small size, easy maintenance; light weight, easy installation; high mechanical strength, not easily broken; excellent seismic resistance, good pollution resistance; fast production cycle, high quality stability.
Disadvantages of composite insulators: The aging resistance is not as good as that of ceramic and glass insulators, and the production cost is higher than that of ceramic and glass insulators.
Composite insulator is a special insulation control that can play an important role in overhead transmission lines.
Composite insulators can be divided into: line composite insulators and power station and electrical appliance composite insulators. It can also be divided into rod-shaped suspension composite insulators, pin-type composite insulators, cross-arm composite insulators, pillar composite insulators, windproof composite insulators, etc.
Porcelain insulator is an insulator made of electrical ceramics. Electrical ceramics are baked from quartz, feldspar and clay. The surface of porcelain parts of porcelain insulators is usually covered with enamel to improve its mechanical strength, waterproof infiltration, and increase surface smoothness. Among all types of insulators, porcelain insulators are the most commonly used.
