Composite insulator
Also known as composite insulators. The insulator consists of a glass fiber resin core rod (or core tube) and an organic material sheath and umbrella skirt. It is characterized by small size, light weight, high tensile strength and excellent pollution flashover resistance, but its anti-aging ability is inferior to that of porcelain and glass insulators.
Composite insulators include: rod-shaped suspension insulators, insulation crossarms, post insulators, and hollow insulators (i.e. composite sleeves). Composite sleeves can replace ceramic sleeves used in various power equipment, such as transformers, lightning arresters, circuit breakers, capacitive sleeves, and cable terminations. Compared with porcelain sleeves, it not only has the advantages of high mechanical strength, light weight, and small dimensional tolerances, but also avoids damage caused by bursting.