Composite insulators consist of three parts: an insulating core rod, a silicon rod with a rubber sheath, and the connecting hardware at both ends.
Insulating core rods, also known as epoxy glass fiber pulling rods, serve as the framework for composite insulators, supporting the hood, internal insulation, and connecting hardware at both ends, while also withstanding mechanical loads. They offer high tensile strength, typically exceeding 600 MPa, which is twice that of ordinary steel and 5 to 8 times that of porcelain materials. They also possess excellent dielectric properties and resistance to chemical erosion, 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 external insulation. 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 exhibit good hydrophobicity and migration properties, along with excellent resistance to corrosion, aging, and electrical insulation. Moreover, they have a high flashover voltage and resistance to breakage, with a uniform voltage distribution. Compared to porcelain, their flashover voltage under the same conditions is more than twice that of porcelain.
Composite Insulator Product Types
FXBW - Rod-type Suspended Composite Insulator
FPQ - Composite针式绝缘子
FZSW——Composite Pole Insulator
FS - Composite Cross Arm Insulator
FCGW-----Composite Dry Wall Penetration Sleeve
FQE(X) -- Composite Insulator for Electrified Railway Tracks
FQJ -- Electric Road Vehicle Composite Insulator
Terms of Use
Operating Temperature: -40℃ to +40℃; Altitude: Not exceeding 1500 meters
AC power frequency not exceeding 100HZ, wind speed not exceeding 35m/s
Earthquake intensity does not exceed 8.0.
Product Performance Features
Small in size, light in weight, approximately 1/5 to 1/9 the size and weight of similar voltage porcelain insulators, easy for transportation and installation.
The composite insulator boasts high mechanical strength, reliable structure, stable performance, and a large safety margin for operation, ensuring safety and reliability for the line.
The composite insulator boasts excellent electrical properties, with silicone rubber umbrellas offering good hydrophobicity and migration resistance. It has superior anti-soiling performance and strong resistance to flashover, allowing safe operation 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 breakdown, excellent sealing properties, and ensure that the internal insulation remains dry.
The composite insulator exhibits excellent anti-fracture properties, strong vibration resistance, and will not experience brittle fracture accidents.
The composite insulator is interchangeable and can be used in place of porcelain insulators and others.
