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

Insulating core rod is a short term for epoxy resin glass fiber drawing rod. It serves as the skeleton of composite insulators, supporting the hood, inner insulation, connecting fittings at both ends, and bearing mechanical loads, among other functions. It boasts a high tensile strength, usually exceeding 600 MPa, which is twice that of ordinary steel and 5 to 8 times that of ceramic materials. It also exhibits excellent dielectric properties, resistance to chemical erosion, and good resistance to bending fatigue, creep, and impact. The silicone rubber hood primarily protects the core rod, shields against rain and snow, increases the creepage distance, and enhances the product's external insulation. It is made from a polymerized silicone rubber matrix, supplemented by flame retardants, anti-aging agents, coupling agents, and other fillers, through high-temperature and high-pressure vulcanization. It has excellent hydrophobicity and migration properties, as well as good resistance to corrosion, aging, and electrical insulation. It also features a high flashover voltage and resistance to fragmentation, with a uniform voltage distribution. Compared to ceramic materials, its flashover voltage under the same conditions is more than twice that of ceramic.

Composite Insulator Product Types

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

FPQ-----Composite needle-type insulator

FZSW - Composite Pole Insulator

FS - Composite Cross Arm Insulator

FCGW——Composite Dry Wall Penetration Tube

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

Earthquake intensity does not exceed 8.0.

Product Performance Features

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

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, with a silicone rubber hood that exhibits 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 or zero-value maintenance.

Composite insulators feature acid and alkali resistance, heat aging and electrical insulation capabilities, good sealing performance, and ensure that the internal insulation remains dry.

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

The composite insulator is interchangeable and can be used in place of porcelain and other insulators.