Composite insulators consist of three parts: an insulating core rod, a silicon rubber sheath, and the connecting hardware at both ends.

Insulating core rods, also known as epoxy glass fiber drawn rods, serve as the skeletal structure of composite insulators. They support the hood, inner insulation, and connect the two terminal hardware, while also withstanding mechanical loads. They possess high tensile strength, typically exceeding 600 MPa, which is twice that of ordinary steel and 5 to 8 times that of porcelain. They also exhibit excellent dielectric properties and chemical resistance, as well as good resistance to bending fatigue, creep, and impact. Silicone rubber hood sleeves primarily protect the core rod, shield against rain and snow, increase the creepage distance, and enhance the external insulation of the product. They are made from high polymer silicone rubber, reinforced with flame retardants, anti-aging agents, coupling agents, and other fillers through high-temperature and high-pressure vulcanization. They offer good hydrophobicity and migration properties, along with excellent resistance to corrosion, aging, and electrical insulation. Moreover, they have a high flashover voltage and fracture resistance, with a uniform voltage distribution. Compared to porcelain, their flashover voltage under the same conditions is over twice that of porcelain.

Composite Insulator Product Types

FXBW-----Rod-type Suspended Composite Insulator

FPQ-----Composite Needle Insulator

FZSW - Composite Pole Insulator

FS - Composite Cross Arm Insulator

FCGW - Composite Dry Through-Wall Pipe

FQE(X) -- Composite Insulator for Electrified Railway Tracks

FQJ - Composite Insulator for Electrically Conductive Road Vehicle Rooftop

Terms of Use

Ambient Temperature: -40℃ to +40℃; Altitude: Not exceeding 1500 meters

Supply voltage frequency not exceeding 100HZ, wind speed not exceeding 35m/s

Earthquake intensity does not exceed 8.0.

Product Performance Features

Compact and lightweight, approximately 1/5 to 1/9 of the volume and weight of similar voltage porcelain insulators, making them easy to transport and install.

Composite insulators offer high mechanical strength, reliable structure, stable performance, and large safety margin for safe operation, providing assurance for both the line and safe operation.

The composite insulator boasts excellent electrical properties, with the silicone rubber hood offering good hydrophobicity and migration resistance, excellent anti-pollution performance, strong anti-pollution flashover capability, and can operate safely in heavily polluted areas without the need for manual cleaning, and maintenance can be exempt from zero-value testing.

Composite insulators feature resistance to acids and alkalis, heat aging, and electrical properties, excellent sealing performance, and ensure that the internal insulation remains dry.

The composite insulator exhibits excellent resistance to brittleness and strong shock resistance, preventing any brittle fracture incidents.

Composite insulators are interchangeable and can be used in place of porcelain insulators and others.