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Post Composite Insulators for Distribution Lines
Factory: We are a professional manufacturer providing OEM custom production services.
- Product Overview
- Technical Specifications
- Product Structure
- Applications
- Testing Capability
- Packaging & Customization
Product Overview
post composite insulators are widely used in medium-voltage power distribution systems for conductor support, electrical insulation and mechanical fixing. Wishpower post composite insulators are manufactured with a high-strength fiberglass core rod, silicone rubber housing and reliable metal end fittings. They provide excellent insulation performance, mechanical stability and weather resistance, making them suitable for overhead lines, substations, switchgear and outdoor electrical equipment in demanding environments.
Wishpower 20kV, 22kV and 24kV post composite insulators are designed for medium-voltage distribution applications where stable insulation and mechanical support are required. Compared with traditional porcelain insulators, composite insulators offer lighter weight, better impact resistance and improved pollution performance.
Key advantages include:
Excellent hydrophobicity: Silicone rubber housing helps reduce leakage current and pollution flashover risk.
High mechanical strength: Fiberglass reinforced epoxy core provides reliable tensile and bending performance.
Lightweight design: Easier to transport, handle and install than porcelain alternatives.
Strong weather resistance: Suitable for UV exposure, rain, snow, humidity, salt fog and outdoor temperature changes.
Reliable operating safety: Non-fragile composite structure helps reduce breakage risk.
Wide voltage compatibility: Suitable for 20kV, 22kV, 24kV and other medium-voltage distribution systems.
Core Features
Designed for medium-voltage distribution networks
The product is suitable for 20kV, 22kV and 24kV systems in utility grids, industrial power systems and outdoor electrical installations.Composite insulation with strong anti-pollution performance
Silicone rubber sheds maintain good hydrophobicity and help reduce leakage current in humid, dusty or coastal environments.High-strength core rod
The fiberglass reinforced epoxy core provides stable mechanical support for conductors and electrical equipment.Reliable metal end fittings
End fittings are usually made of hot-dip galvanized steel or other corrosion-resistant materials to ensure secure connection.Suitable for harsh outdoor environments
The insulator can operate under UV radiation, high humidity, temperature variation and polluted service conditions.Low maintenance cost
The lightweight and non-fragile structure reduces transportation damage, installation risk and long-term replacement frequency.
Product Structure
Wishpower post composite insulators are generally composed of the following parts:
Fiberglass reinforced epoxy core rod
The main load-bearing component, providing tensile, bending and supporting strength.Silicone rubber sheds and housing
Provide external insulation, hydrophobicity, aging resistance and anti-pollution performance.Metal end fittings
Used for connection with conductors, crossarms, support brackets, switchgear or other electrical equipment.Sealing system
Reliable sealing between the end fitting and core rod helps prevent moisture ingress.Shed profile design
Optimized shed geometry increases creepage distance and improves outdoor insulation performance.
Technical Specifications
| Model | Rated Voltage | Mech. Tensile | Creepage Distance | Standard |
|---|---|---|---|---|
| FPQ-10/5 | 10kV | 5kN | ≥280mm | IEC 61952 / GB/T 19519 |
| FPQ-12/5 | 12kV | 5kN | ≥320mm | IEC 61952 / GB/T 19519 |
| FPQ-15/5 | 15kV | 5kN | ≥400mm | IEC 61952 / ANSI C29 |
| FPQ-20/8 | 20kV | 8kN | ≥520mm | IEC 61952 / GB/T 19519 |
| FPQ-22/8 | 22kV | 8kN | ≥560mm | IEC 61952 / GB/T 19519 |
| FPQ-24/8 | 24kV | 8kN | ≥620mm | IEC 61952 / GB/T 19519 |
| FPQ-27/10 | 27kV | 10kN | ≥700mm | IEC 61952 / ANSI C29 |
| FPQ-33/10 | 33kV | 10kN | ≥900mm | IEC 61952 / IEC 61109 |
| FPQ-36/12.5 | 36kV | 12.5kN | ≥1000mm | IEC 61952 / GB/T 19519 |
| FPQ-40.5/12.5 | 40.5kV | 12.5kN | ≥1250mm | IEC 61952 / GB/T 19519 |
Product Structure
Main Applications
post composite insulators are suitable for:
Medium-voltage overhead distribution lines
Urban distribution network upgrading projects
Substation busbar support
Outdoor switchgear
Ring main units, circuit breakers and disconnect switches
Railway, mining, petrochemical and industrial power systems
Coastal, humid and polluted environments
Renewable energy substations and distribution equipment
Testing Capability
Packaging & Transportation
To keep products safe during transportation and storage, we use the following packaging methods:
- Individual Packaging: Each product is wrapped with protective film, packed in a high-strength carton, and cushioned with buffer materials.
- Pallet Packaging: Multiple products are fixed on wooden pallets and wrapped with stretch film, suitable for container shipping.
- Export Packaging: Fumigated wooden cases, moisture-proof treatment, and detailed packing lists are provided according to sea freight requirements.
Customization Service
WishPower can provide the following customization options according to customer requirements:
- Structural Dimensions: Adjust overall height, creepage distance, shed quantity, and shed diameter.
- End Fittings: Customize ball-socket, tongue-clevis, eye, or other interface types according to connection requirements.
- Color: Standard gray, with red, yellow, blue, and other colors available subject to MOQ.
- Special Environments: Formulations for extreme cold (-60 C), strong UV exposure, heavy pollution, and other harsh conditions.
- Voltage Classes: Full-range customization from 10kV to 1000kV.
- Marking: Customer logos or model numbers can be molded or printed on the product.
For specific customization requirements, please contact our sales engineers. We will provide a technical solution within 24 hours.
FAQ
Q: Can you provide customized insulation products?
A: Yes. WishPower supports customized voltage ratings, creepage distances, fittings, colors and drawings according to project requirements.
Q: How do I choose the right composite insulator for my project?
A: You can provide voltage level, installation type, mechanical load, creepage distance and operating environment. Our team will recommend the suitable model.
Q: Can you supply complete products for transmission and distribution projects?
A: Yes. We can provide composite insulators, surge arresters, fuse cutouts, insulating bushings and related power insulation products.
Q: Are composite insulators suitable for coastal areas?
A: Yes. Composite insulators with silicone rubber housing provide good hydrophobicity and anti-pollution performance, making them suitable for coastal and polluted environments.
Q: What standards can your products meet?
A: Our products can be designed and tested according to IEC, ANSI, GB and customer-specific technical requirements.
