| Application: | High-voltage |
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| Material: | Composite Polymer |
| Structure: | Suspension Insulator |
| Type: | B Type Insulator |
| Usage: | High Voltage Power Transmission, Insulation |
| Connection Method: | Ball/Socket |
| Samples: |
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| Customization: |
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Composite tension insulators are essential components used in electrical power transmission systems. They are designed to provide reliable support for power lines while also insulating them from the surrounding environment. The 66kV composite tension insulator is a high-quality product that can withstand high voltage and harsh environmental conditions.
This insulator is made from a composite material that is lightweight and resistant to environmental degradation, such as UV radiation and corrosion. Its unique design ensures it can handle heavy loads and extreme weather conditions without compromising performance.
The 25kV composite tension insulator is easy to install and maintain. Its simple design allows for quick and easy attachment to power lines, reducing installation time and costs. Maintenance is also minimal, as the insulator requires no special cleaning or upkeep beyond regular inspections.
| Typical Line Voltage (kV) |
Section Length (mm) |
Dry Arcing Distance (mm) |
Leakage Distance (mm) |
Specified Mechanical Load (SML, kN) |
Routine Test Load (RTL, kN) |
1min. Power Frequency Withstand Voltage (Wet) (kV) |
Lightning Impulse Withstand Voltage (kV) |
| 25 | 430±10 | 215 | 585 | 110 | 55 | 50 | 90 |
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Item |
Requirement |
Measured Valued |
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Visual examination |
Fuchsine,grey or white, |
Ok |
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Hardness (shore A) |
≮50 |
65~70 |
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Tensile strength (Map) |
≮4 |
4~6 |
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Failure elongation (%) |
≮150 |
≮180 |
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Tearing strength (kN/m) |
≮10 (right angle sample) |
12~15 |
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Volume resistivity (Ω.m) |
1X1012 |
3~8X1012 |
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Puncture strength (kV/mm) |
Alternating current ≮22 |
≮30 |
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Tracking and erosion |
TMA4.5,erosion depth≯2.5mm |
TMA4.5, erosion depth <0.8mm |
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Flammability (Grade) |
FV-0 |
FV-0 |
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The polymer suspension insulator with Tongue 25kV is widely used in various electrical applications, including power transmission and distribution lines, substations, and switchyards. Its excellent insulation properties make it suitable for both overhead and indoor installations. The insulator is designed to withstand high-voltage environments and is a reliable choice for ensuring safe and uninterrupted power supply.
Our company specializes in the production of composite insulators for transmission and distribution lines. The main structure is composed of rubber, epoxy glass fiber core and metal end fittings.
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Compared with similar ceramic and glass insulators, silicone rubber insulators have the following advantages:
(1) Small size, light weight (1/7~1/10 times that of ceramic insulators with the same voltage), good elasticity of the shed, not easy to break, convenient transportation and installation, and economical.
(2) High mechanical strength. FRP rods have high tensile strength, which is 5-10 times that of ceramic materials. The cross-section of the core material is small, the product is small in size, light in weight, and high in tensile strength. It is easy to manufacture large-tonnage insulators above 300KN.
(3) High antifouling performance and good aging resistance. The silicone rubber injection molded shed has good hydrophobicity and mobility, which makes the insulator have high anti-pollution flashover voltage and good electrical corrosion resistance.
(4) Easy installation and maintenance, which can greatly reduce maintenance costs caused by power outages and manual labor intensity.
(5) The production process is simple and the delivery time is short.
We have been participating in various exhibitions at home and abroad from 2010 to 2020. At the exhibition, relevant people from the industry and us saw our products directly and closely.
We take pride in providing exceptional after-sales service and technical support to our customers. We offer a comprehensive two-year warranty on our polymer suspension insulator with Tongue 25kV, ensuring customer satisfaction and peace of mind. Our dedicated team of experts is available to assist with any inquiries, installation guidance, and maintenance support throughout the warranty period.
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Q: What are the raw materials used in the manufacturing of the insulator? A: Our polymer suspension insulator with Tongue 25kV is made using premium-grade polymers, high-quality core rods, and corrosion-resistant fittings and accessories.
Q: How long is the warranty period for the insulator? A: We provide a two-year warranty on our polymer suspension insulator with Tongue 25kV, ensuring its quality and reliability.
Q: Does your company have the necessary certifications for quality and safety standards? A: Yes, our company is fully compliant with international standards, including ISO 9001, ISO 45001, and ISO 14001. We prioritize quality, safety, and environmental responsibility in our manufacturing processes.
Q: Can the insulator withstand harsh weather conditions? A: Yes, the polymer suspension insulator with Tongue 25kV is designed to withstand various environmental conditions, including extreme temperatures, high humidity, and heavy pollution.
Q: Is the insulator suitable for both overhead and indoor installations? A: Yes, the insulator is versatile and can be used in both overhead and indoor electrical systems, providing reliable insulation and efficient power transmission.
Suppliers with verified business licenses
Audited Supplier 
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