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Composite Insulator

The core consists of a glass-fiber-reinforced epoxy resin rod (providing mechanical strength), a silicone rubber umbrella skirt sheath (offering insulation and weather resistance), and metal connecting fittings (used to link conductors to towers).

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Composite Insulator

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+86 15175398888

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  • Product Description

  • Product Introduction

    Composite insulators are a new type of insulating device used in power systems to insulate and support transmission lines. They consist of a core made from glass-fiber-reinforced epoxy resin (providing mechanical strength), a silicone rubber shed cover (offering insulation and weather resistance), and metal connecting fittings (used to link the conductors to towers or poles). Thanks to their lightweight design and excellent contamination resistance, these insulators are widely employed in high-voltage/ultra-high-voltage transmission lines, substations, and other critical applications.

    Its product features can be summarized as:

       Lightweight design: The core rod and silicone rubber materials have low density, weighing only 1/3 to 1/5 of traditional porcelain/glass insulators, making them easier to transport and install while reducing the load pressure on towers and poles.
       Highly resistant to contamination: The silicone rubber umbrella skirt features a hydrophobic surface (water contact angle > 100°), making it resistant to dirt accumulation. Moreover, any accumulated grime is easily washed away by rainwater, effectively preventing pollution-related flashovers—making it ideal for harsh environments characterized by frequent fog and heavy dust.
       Excellent mechanical performance: The glass fiber core rod boasts high tensile strength, strong resistance to bending and vibration, and is unlikely to fracture under external impact.
        Age-resistant and corrosion-proof: Silicone rubber is UV-resistant, withstands extreme temperatures (-40°C to 120°C), and maintains its integrity—showing no cracking or aging—even after prolonged use. Plus, it’s completely rust-free, making maintenance costs minimal.
     

Choose our advantages

Factory direct supply

Customization supported

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Shipment dispatched promptly

One-stop service

Customized Services

OEM

OEM/ODM

We have a professional design team that can provide end-to-end services—from design to production. We also accept custom orders or other tailored requests based on your drawings or samples.

Customization

Non-standard customization

The original manufacturer boasts strong capabilities, with robust production and R&D expertise, enabling it to undertake the design, manufacturing, and customized services for non-standard products.

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FAQ

How can we ensure the safe transportation of products? And how is shipping cost calculated?

We use professional export packaging materials and techniques to provide multi-layered protection for your products, ensuring they arrive safely at their destination. For fragile items, we apply extra reinforcement measures. Shipping costs vary depending on the transportation method you choose—such as sea freight, air freight, or express delivery—as well as the weight, dimensions of the goods, and your specific destination. After you place your order, we’ll calculate the exact shipping fee based on the actual situation and promptly inform you.

What payment methods do you accept?

We accept a variety of secure and convenient payment methods, including wire transfers to our bank account, Western Union, and PayPal. Payment terms typically require a 30% down payment, with the remaining 70% due upon receipt of the bill of lading copy. For customers who maintain long-term, stable partnerships or place large orders, we can discuss more flexible payment arrangements.

How long is the typical order delivery cycle?

Sample orders typically take around 7 business days for delivery. For bulk production orders, shipment will be arranged within 20–30 business days after we receive your 30% deposit and once the product design has been confirmed. In case of special circumstances or if you have urgent requirements, please let us know in advance, and we’ll do our best to coordinate and expedite the process.

Do you have a minimum order quantity requirement?

Yes, for international orders, we do have a minimum order quantity requirement. The specific threshold may vary depending on the product. If you’re looking to purchase in smaller quantities, feel free to reach out—we’ll do our best to work with you and provide a suitable solution.

What is the price of your product?

Our product prices may vary depending on factors such as fluctuations in raw material markets, order quantities, and product specifications. You can reach out to us via website message, email, or phone to share your detailed product requirements, and we’ll promptly send you a new, accurate quotation.
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