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 for composite insulators. They support the hood, internal insulation, and connect the terminal hardware, while also withstanding mechanical loads. They possess a high tensile strength, typically exceeding 600 MPa, which is twice that of ordinary steel and 5 to 8 times that of ceramic materials. They also exhibit excellent dielectric properties, resistance to chemical erosion, and 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. These sleeves are made from high molecular polymer silicone rubber, reinforced with flame retardants, anti-aging agents, coupling agents, and other fillers, cured under high temperature and pressure. They offer excellent hydrophobicity and migration properties, as well as good resistance to corrosion, aging, and electrical insulation. Additionally, they have a high flashover voltage and resistance to fragmentation, 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 Fitting

FQE(X) - Composite Insulator for Electrified Railways

FQJ——Electrified Track Vehicle Roof Composite Insulator

Terms of Use

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

交流电源 frequency not exceeding 100HZ, high wind speed not exceeding 35m/s

Earthquake intensity does not exceed 8.0 magnitude.

Product Performance Features

Small in size, light in weight, approximately 1/5 to 1/9 of the same voltage grade porcelain insulators, easy for transportation and installation.

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

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

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

The composite insulator exhibits excellent anti-fragility performance, strong vibration resistance, and will not suffer from brittle fracture accidents.

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