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

Insulating core rod, also known as the epoxy glass fiber pull rod, serves as the backbone of composite insulators, supporting the hood, internal insulation, connecting hardware at both ends, and bearing mechanical loads. It boasts a high tensile strength, typically exceeding 600 MPa, which is twice that of ordinary steel and 5 to 8 times that of ceramic materials. It also has excellent dielectric properties and resistance to chemical erosion, as well as good resistance to bending fatigue, creep, and impact. Silicone rubber hood primarily protects the core rod, shields against rain and snow, increases the creepage distance, and enhances the product's external insulation. Made from high molecular polymer silicone rubber with flame retardants, anti-aging agents, coupling agents, and other fillers that are cured at high temperature and pressure, it offers excellent hydrophobicity, migration resistance, and good resistance to corrosion, aging, and electrical insulation. It also has a high flashover voltage and fracture resistance, with uniform voltage distribution. Compared to ceramic materials, its flashover voltage under the same conditions is more than double that of ceramic.

Composite Insulator Product Types

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

FPQ----Composite needle-shaped insulator

FZSW - Composite Pole Insulator

FS - Composite Cross Arm Insulator

FCGW - Composite Dry Through-Wall Sleeve

FQE(X) ---- Composite Insulator for Electrified Railways

FQJ - Composite Insulator for Electrically Conductive Road Vehicle Rooftop

Terms of Use

Ambient temperature: -40℃ to +40℃; Altitude not exceeding 1,500 meters

Supply AC frequency not exceeding 100HZ, high 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 size and weight of the same voltage porcelain insulators, making transportation and installation easier.

Composite insulators have 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 excellent electrical properties. The silicone rubber umbrella endows it with good hydrophobicity and migration resistance, excellent dirt resistance, strong anti-pollution flashover capability, and can operate safely in heavily polluted areas without the need for manual cleaning, allowing for zero-value maintenance.

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

The composite insulator boasts excellent resistance to brittleness and strong vibration resistance, preventing any brittle fracture accidents.

The composite insulator is interchangeable and can be used interchangeably with porcelain and other insulators.