Specifications
| Core |
FRP tube |
| Sheds |
High-quality silicone rubber |
| Fittings |
Hot-dip galvanized steel |
| Voltage Rating |
10 / 15 / 25 / 35 / 45 / 69 / 115 / 230 / 400 / 750 / 800 kV |
| Dielectric Strength |
20 kV/mm (minimum) |
| Creepage Distance |
Varies with voltage rating |
| Tensile Strength |
Varies with design and application |
| Compressive Strength |
Varies with design and application |
| Torsional Strength |
Varies with design and application |
| UV Resistance: |
ASTM G154 |
| Pollution Class |
Heavy |
| Temperature Range |
-50°C to +80°C |
Wishpower strictly implements domestic and international industry standards. The products we produce meet international standards such as IEC and ANSI. And have passed professional tests such as KEMA and STRI. We have more than 20 years of production and R&D experience and are a trustworthy manufacturer. Is your company interested in purchasing hollow insulators or need help? Please get more information directly through this website or info@wishpower.net
What is Hollow Insulator?
Hollow Core Insulator is an innovative high-voltage insulating product used for electrical insulation and mechanical support in electrical systems. Such insulators have a core comprised of epoxy resin reinforced by fiberglass, which considerably decreases the density of the structure but at the same time preserves superlative mechanical properties. This core is then covered by the outer enclosure made of silicone rubber—the material recognized for its ability to withstand harsh weather conditions, UV light, and pollution. It has sheds in the silicone rubber housing increasing the surface distance for electrical leakage and improving its performance in contaminated and wet end scenarios. As a result of the following facts: lightweight construction along with the use of robust can assure dependable performance under adverse environmental conditions, it is recommended for application in substations, power plants, and lines of electric power transmission. Also, their long service life with little wear and tear due to resistance to environmental factors enhances the efficiency and safety of high-voltage electrical systems.
Benefits
- Lightweight Construction:
Composite hollow core insulators are significantly lighter than conventional porcelain or glass insulators, reducing transportation and installation costs and simplifying handling.
- High Mechanical Strength:
The fiberglass-reinforced epoxy resin core offers superior mechanical strength, enabling these insulators to withstand higher mechanical loads and stresses.
- Enhanced Weather Resistance:
The silicone rubber housing provides excellent resistance to weathering, UV radiation, and ozone, outperforming conventional materials in harsh environmental conditions.
- Improved Performance in Polluted Conditions:
The sheds or skirts on them increase the creepage distance, improving performance in areas with high pollution or salt contamination, and requiring less frequent cleaning and maintenance compared to conventional insulators.
- Durability and Longevity:
Composites are non-corrosive, non-spalling, and chemically attack-resistant, which means that they will last longer and require less maintenance than insulators.
Application
- 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.
About Wishpower
- Rich experience:
By now, Wishpower has been investing its attention in such an industry for over 20 years and has been endowed with adequate experience and knowledge.
- Professional scientific research team:
The professional scientific research team of the company has more than 30 people, and technological innovation and product development are strengthened continuously.
- Multiple national patents:
We have more than 10 national invention patents And we have a strong technical force.
- Broad customer base:
The scope of its customers is over two thousand, including domestic and foreign ones, and it is equipped for various fields.
- Quality certification:
Many of our products have been tested and authenticated by testing institutions including KEMA and STRI and customers’ full affirmation and recognition.
- Advanced testing equipment:
The company possesses perfect inspecting measures and high-voltage testing equipment and can perform electrical tests, mechanical strength tests, physical and chemical tests, and other tests for products with high quality and stable performance.
Exhibition
