International Co.,Ltd. (TCI) specializes in manufacturing and exporting insulators, power fittings, bushings, cables and accessories for power transmission lines and substations. In addition to supplying high-quality products to our customers, we also provide superior technical assistance and services to meet their various needs.
Why Choose Us
Rich Experience
More than 70% of TCI's staff has bachelor degrees or higher. Many senior engineers and technicians are knowledgeable and experienced in the fields of high voltage, macromolecule research and machine manufacturing. We also have a well-established skilled workforce.
Professional Team
We has the complete management and technology teams, modern office facilities and business management software guaranteeing our clients secure operation solutions and sustainable business models.
Our Certifications
We implement the ISO 9001:2015 Quality Control and the ISO14001:2015 environmental management systems.
Our Market
TCI's products have been exported to 100 countries in the world. Our high quality products and services have helped us to obtain overseas market share and good reputation.
Overview of Composite Line Post Insulators
Composite Line post insulator, what also named polymeric line post insulator, is a kind of line post insulator, which consist of metal end-fittings, fiberglass core, and housing. It has the same function with porcelain (ceramic) line post insulator - as supports for power conductors.
We offer the following Product Specifications
|
Product Type |
FZSW-220(252)/4 |
|
Specified Voltage |
220 kV |
|
Specified Bencing Withstand Load |
4 kN |
|
Section Length |
2300±5 mm |
|
Min. Arcing Distance |
2132 mm |
|
Big Shed Diameter |
210 mm |
|
Min. Nominal Creepage Distance |
6300 mm |
|
Lightning Impulse Withstand Voltage(Peak Value) |
≥1050 kV |
|
Power Frequency Withstand Voltage Min.Wet(RMS) |
≥460 kV |
|
Reference Weight |
48 kg |
Lightweight: Composite insulators are significantly lighter than their porcelain counterparts, making them easier to handle during installation and maintenance.
Corrosion Resistance: The materials used in composite insulators are resistant to corrosion, ensuring a longer service life in harsh environmental conditions.
High Mechanical Strength: Composite insulators exhibit high mechanical strength, making them less prone to damage from vibration, wind, and other mechanical stresses.


Excellent Pollution Performance: The silicone rubber housing provides excellent pollution performance, reducing the risk of flashovers in contaminated environments.
Hydrophobic Properties: Composite insulators are hydrophobic, meaning they repel water, which helps prevent the accumulation of contaminants on the surface.
Ease of Cleaning: The smooth surface of composite insulators allows for easier cleaning, further enhancing their performance in polluted areas.
Application of Composite Line Post Insulators
Power Generation
Utilized in power stations to support and specially protect high voltage equipment such as bus bars and transformers.
Transmission and Distribution
The critical support structures of conductors and switchgear can be used in high-voltage transfer and distribution.
Railways
Employed in electrified railways to bear and provide electrical insulation of overhead wires and other structures.
Industrial Manufacturing
Common in industries with large electric systems like steel producers, chemical industries, and in the manufacture of electricity such as the substation industries.
The installation of the post insulators depends on the type of post insulator, manufacturer guidelines and project specifications. You should consult with the manufacturer's instructions and work in accordance with the applicable industry standards and safety regulations during the process of installation.
Prepare all the tools and equipment to be used during the installation.
Position and align the insulators along the transmission lines.
Mount the post insulators to the supporting structure using the provided mounting hardware.
Connect the conductors to the post insulators using the appropriate fittings and connectors.
Assemble the insulator strings by connecting multiple insulators together to achieve the required voltage rating.
Ensure that grading rings are installed and properly positioned along the length of the post insulator.
Conduct a thorough visual inspection of the installed post insulators to check for any signs of damage or improper installation.
Establish a regular maintenance and monitoring schedule to ensure the ongoing integrity and performance of the pillar insulator.
Packaging & Delivery

Certifications

FAQ
As one of the most professional composite line post insulators manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized composite line post insulators made in China here from our factory.
252kv Composite Post Insulator, Horizontal Top Clamp Line Post Insulator, ceramic Disc Insulator




