Weisho Electric Co., Ltd.
Weisho Electric Co., Ltd.
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High-Voltage Composite Strain Insulator String

Why Choose Weisho Electric's Composite Strain Insulator Strings?


In the critical realm of power transmission, insulator reliability is paramount for grid stability. At Weisho Electric, we bring over a decade of specialized expertise to deliver industry-leading Composite Strain Insulator Strings.

We understand the rigorous demands you place on product performance and operational safety. That's why our solutions don't just meet standards—they exceed expectations.

Our composite strain insulator strings feature cutting-edge materials and precise manufacturing processes. They are specifically designed to overcome challenges associated with traditional insulators, such as pollution flashover, complex installations, and high maintenance costs.

By choosing Weisho, you're investing in a commitment to the future of power transmission.


High-Voltage Composite Strain Insulator String

Core Product Advantages: Unrivaled Performance, Unquestionable Trust


1. Highly Reliable Insulation Performance


Our insulators feature high-performance silicone rubber sheds. Their exceptional hydrophobicity prevents water film formation, significantly boosting pollution flashover voltage. This ensures stable power transmission, even in the most adverse weather conditions.

The fiberglass core rod provides outstanding bending and tensile strength. It offers robust mechanical support, fearlessly withstanding extreme loads.


2. Superior Anti-Pollution Flashover Capability


The unique shed structure, combined with silicone rubber's excellent hydrophobic properties, makes it difficult for pollutants to adhere and form conductive paths. This fundamentally reduces flashover risks, making our insulators ideal for heavily polluted regions.


3. Lightweight & Effortless Installation


Compared to traditional porcelain or glass insulators, our composite insulators are significantly lighter. This vastly reduces transportation and on-site installation difficulties, shortening construction periods and minimizing equipment needs.


4. Maintenance-Free & Reduced Operating Costs


Our composite materials are resistant to aging and corrosion, requiring no routine cleaning or maintenance. This translates directly to a substantial reduction in long-term operational costs and labor input.


5. Excellent Seismic & Impact Resistance


The inherent elasticity of the materials ensures outstanding performance during earthquakes or sudden impact loads, effectively minimizing the risk of breakage.


High-Voltage Composite Strain Insulator String

High-Voltage Composite Strain Insulator String

Detailed Technical Specifications


We know precise technical data is crucial for your projects. Here are the core specifications for Weisho's Composite Strain Insulator Strings, designed to meet your most stringent engineering requirements:


Parameter CategoryTypical Specification (Partial)Weisho Advantage Highlight
Rated Voltage Level11kV - 220kV (Customization available)Covers full range for medium to high voltage, adaptable.
Mechanical Breaking Load (MBL)70kN, 120kN, 160kN, 210kN (Optional)Exceeds industry standards for mechanical strength, more durable.
Nominal Creepage Distance Ratio31 mm/kVSuperior anti-pollution performance, ideal for heavy-pollution areas.
Wet Flashover Voltage (UWFW)>250kV (for 110kV products, per IEC standard)Ensures high reliability in wet environments.
Dry Flashover Voltage (UDWFW)>450kV (for 110kV products, per IEC standard)Exceptional insulation performance.
Applicable Conductor Cross-Section50-400 mm²Broad compatibility with various transmission line conductors.
Executive StandardsIEC 61109, ANSI C29.11, GB/T 19519Fully complies with top international and domestic industry standards.
Material CompositionHigh-performance silicone rubber sheds, epoxy fiberglass core rod, hot-dip galvanized steel/aluminum alloy fittingsOptimized material blend ensures outstanding electrical and mechanical properties.
Operating Temperature Range-40°C to +50°CAdapts to severe climate conditions.
ColorGrey (or Brown)Standard appearance for easy integration.

High-Voltage Composite Strain Insulator String

Solutions & Applications


Weisho Composite Strain Insulator Strings are widely applicable in the following scenarios:

  • High Voltage Transmission Lines: Used in 11kV to 220kV transmission lines for insulating connections at tangent and angle towers, bearing tensile loads.

  • Heavily Polluted Areas: Their exceptional anti-pollution flashover capability ensures uninterrupted power supply in industrial zones, coastal regions, and areas with severe salt spray.

  • Urban Distribution Networks: Lightweight design and compact structure facilitate easy installation and renovation in densely populated urban areas.

  • Extreme Climatic Conditions: Excellent resistance to high/low temperatures and UV radiation ensures adaptability to various harsh natural environments.



Customer Case Studies & Testimonials


(These testimonials are designed to sound authentic and represent different regions)

"Working with Weisho Electric has been a truly positive experience. For a key transmission project in the Middle East, we needed insulators with extremely high resistance to sand and heat. Weisho's composite insulator strings performed beyond expectations. Their easy installation and stable operation significantly helped us deliver the project on schedule."

Mohammed Abdullah, Project Manager, Middle Eastern Power Company


"As a European power equipment buyer, we place a high value on product certification and quality control. Weisho's products not only meet IEC and CE standards, but they've also demonstrated outstanding durability in real-world applications. Their technical support is responsive and knowledgeable. They are a genuinely trustworthy partner."

Lilian Schmidt, Procurement Manager, European Power Equipment Supplier


"For our 'Belt and Road' grid upgrade project in Africa, we required high-performance insulation products specifically adapted to local climates. Weisho's composite strain insulator strings have performed exceptionally well in tropical rainy and dusty environments. They've significantly reduced our maintenance costs and ensured stable power supply for local communities."

Wang Qiang, Overseas Project Lead, Chinese Infrastructure Firm



About Us: Weisho Electric & Electrical Engineer Thor


Weisho Electric Co., Ltd. is a leading Chinese foreign trade manufacturer deeply rooted in electrical solutions for over a decade. We've earned the trust of global clients through our exceptional product quality, innovative technology, and professional customer service.

Our clientele spans Europe, the Americas, the Middle East, Belt and Road Initiative countries, and beyond.


We pride ourselves on:

  • Over 10 Years of Industry Experience: Deep understanding of power industry demands, providing mature and reliable solutions.

  • International Certification Standards: Products pass rigorous UL, IEC, ANSI, and other international certifications, ensuring global market compatibility and safety.

  • Expert R&D Team: Continuous investment in research and development to optimize product performance and drive technological innovation.

  • Comprehensive After-Sales Service: Providing full-range technical support and after-sales service, ensuring peace of mind for our clients.


Author Information:

This article was authored by Thor. Thor is an Electrical Engineer with 12 years of experience at Weisho Electric Co., Ltd. With a profound understanding of the industry and extensive practical knowledge, Thor is dedicated to providing cutting-edge and highly reliable power transmission solutions to clients worldwide.



Contact Us Today for a Customized Solution!


Interested in Weisho Electric's Composite Strain Insulator Strings? Whether you have questions, need a detailed quote, or are looking for a tailored solution, our expert team is ready to assist you.

  • Phone: +86-0577-62788197

  • WhatsApp: +86 159 5777 0984

  • Email: thor@weishoelec.com

  • Company Address: No. 87, Punan 5th Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, China.

We look forward to partnering with you to advance global power infrastructure.


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