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 Hollow Insulator
The Composite Hollow Insulator is one of the critical apparatuses utilized in high-voltage electrical structures because of its exceptional electrical insulation and mechanical strength. This insulator comprises two main parts: An inner insulation core and an outer protective layer to finish the design look of the cable. The core of the composite structure comes with fiberglass reinforced plastic (FRP) so that the structure can have solid mechanical integrity and high environmental durability with issues like corrosion and degradation.
We offer the following Product Specifications
|
Type of Insulator |
FK-110(126)/(8/12.5) |
FK-36/(1/3/5) |
FK-66/10 |
FK-12/(1/3/5) |
FK-24/(1/3/5) |
|
Specified Voltage |
110/126 kV |
36 kV |
66 kV |
12 kV |
24 kV |
|
Specified Bending Withstanc Load |
8/12.5 kN |
1(3/5) kN |
10 kN |
1/3/5 kN |
1/3/5 kN |
|
Section Length |
1350 mm |
210 mm |
984 mm |
138 mm |
190 mm |
|
Min. Arcing Distance |
≥1070 mm |
≥190 mm |
≥704 mm |
≥106 mm |
≥147 mm |
|
Tube Inner Diameter |
115 mm |
115 mm |
115 mm |
70 mm |
100 mm |
|
Big Shed Diameter |
284 mm |
204 mm |
284 mm |
160 mm |
170 mm |
|
Min. Nominal Creepage Distance |
4370 mm |
720 mm |
2900 mm |
248 mm |
480 mm |
|
Lightning Impulse Withstand Voltage(Peak Value) |
≥550 kV |
≥110 kV |
≥325 kV |
≥72 kV |
≥81 kV |
|
Power Frequency Withstand Voltage Min.Wet(RMS) |
≥245 kV |
≥46 kV |
≥140 kV |
≥24 kV |
≥34 kV |
|
Reference Weight |
50 kg |
2.8 kg |
18 kg |
1.6 kg |
2.2 kg |
Advantages of Composite Hollow Insulator
Reduced Maintenance
The durability and resistance of composite materials contribute to a reduction in maintenance requirements. Composite insulators require less frequent inspections and cleaning compared to traditional insulators, resulting in lower operational costs.
Increased System Reliability
The superior mechanical and electrical properties of composite hollow core insulators enhance the overall reliability of power systems. This is particularly crucial in critical applications where system downtime is not acceptable.
Environmental Benefits
The use of lightweight composite materials reduces the environmental impact associated with manufacturing, transportation, and installation. Additionally, the longer service life of composite insulators contributes to sustainability by reducing the frequency of replacements.
Substations
The composite hollow insulator is mainly applied to offer electrical insulation and mechanical strength to electrical equipment like transformers, circuit breakers, and busbars in electrical substations.
Transmission Lines
They are used in electrical installations mainly in high-voltage transmission where they act as insulators to conductors and supports to conductors for long-distance electrical transmission.
Switchgear
It is utilized as an insulating and supporting material in assemblies of switchgear to safeguard various forms of switching apparatus and elements.
Power Plants
Utilized in power generation facilities to insulate and support equipment, ensuring safe and efficient operation of electrical systems.
Railway Electrification Systems
Applied in railway electrification to insulate and support overhead conductors, ensuring reliable power supply to trains.
Composite polymer insulators are made from a combination of different materials such as rubber, glass, resin, and other polymers. They are typically used in extreme weather conditions and areas with high levels of pollution, as they are more resistant to corrosion and ultraviolet (UV) light. Composite polymer insulators are used in power lines, transmission lines, and substations.Composite insulators are being more and more widely used in power grids because of their good hydrophobic properties and their unique anti-pollution flashover capabilities.
Composite insulators and insulating bushings not only bear the effects of working voltage and various overvoltages during operation but also bear the weight of wires, self-weight, ice weight, wind force, short-circuit electric power of the system, the mechanical force of equipment operation, and vibration force The role of insulators also bear the changes in atmospheric conditions and environmental pollution. Therefore, the working conditions of polymer insulators are very harsh.
Components of Composite Hollow Insulator
Fiberglass Core
At the heart of a composite insulator lies a fiberglass core, which provides the necessary mechanical strength. This core is made from glass fibers that are bonded together using a resin matrix. The fiberglass core is lightweight yet incredibly strong, making it ideal for withstanding the mechanical stresses encountered in electrical applications.
Silicone Rubber Housing
Encasing the fiberglass core is a housing made from silicone rubber. This material is chosen for its excellent electrical insulation properties and its ability to resist environmental degradation. Silicone rubber is hydrophobic, meaning it repels water, which helps maintain the insulator's performance even in wet conditions. Additionally, it is resistant to UV radiation, ozone, and various chemicals, ensuring long-term durability.
End Fittings
The end fittings of composite insulators are typically made from metal, such as aluminum or galvanized steel. These fittings are designed to securely attach the insulator to the power line and supporting structures. The metal fittings are often coated to prevent corrosion and ensure a reliable connection throughout the insulator's service life.
Packaging & Delivery
Certifications
FAQ
As one of the most professional composite hollow insulator manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized composite hollow insulator made in China here from our factory.
Polymer Hollow Insulator, Composite Hollow Insulator, High Voltage Bushing