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69kV Line Post Composite Insulator for Overhead Power 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
Wishpower 69kV line post composite insulator is manufactured with a fiberglass reinforced core, silicone rubber housing and metal end fittings. It is suitable for 69kV overhead distribution and transmission lines where reliable insulation, mechanical support and long-term outdoor performance are required.
Compared with traditional porcelain insulators, composite insulators offer better handling convenience, lighter weight and stronger pollution resistance.
Main advantages include:
Lightweight structure for easier transportation and installation.
Silicone rubber housing with excellent hydrophobic performance.
High-strength fiberglass core for stable mechanical support.
Compact design to reduce maintenance pressure.
Customizable creepage distance, fittings and installation dimensions.
2. Key Features
Reliable Electrical Insulation
Designed for 69kV overhead power systems, the insulator provides stable insulation performance under long-term operating conditions.Excellent Pollution Flashover Resistance
The silicone rubber housing offers strong hydrophobicity, making it suitable for coastal, industrial, dusty and humid environments.High Mechanical Strength
The fiberglass core provides good bending strength, tensile strength and resistance to mechanical stress caused by conductor load, wind and vibration.Weather and UV Resistance
The polymer housing is resistant to ultraviolet radiation, ozone, moisture and outdoor aging.Easy Installation and Maintenance
The lightweight design helps reduce installation labor, lifting requirements and maintenance costs.Flexible Customization
Wishpower can customize the insulator according to project drawings, creepage distance, end fittings, color and electrical requirements.
3. Product Structure
The 69kV line post composite insulator mainly consists of the following components:
Fiberglass Core
The core is the main load-bearing part, providing mechanical strength and structural stability.Silicone Rubber Housing
The housing provides external insulation, hydrophobic performance and resistance to pollution, UV and aging.Metal End Fittings
Hot-dip galvanized steel or customized metal fittings are used for connection with crossarms, brackets or conductor support hardware.Sealing System
The sealing design prevents moisture from entering the interface between the core and fittings.Shed Profile
Proper shed spacing and shed design help increase creepage distance and improve insulation performance in wet and polluted environments.
Technical Specifications
| Item | Reference Data |
|---|---|
| Product Name | 69kV Line Post Composite Insulator |
| Product Type | Line Post Composite Insulator |
| Rated Voltage | 69kV |
| Application | High-voltage overhead power line |
| Core Material | Epoxy fiberglass rod |
| Housing Material | HTV silicone rubber |
| Fitting Material | Hot-dip galvanized steel / customized |
| Installation Type | Vertical / horizontal / inclined installation |
| Mechanical Strength | Customized according to project requirements |
| Creepage Distance | Customized according to pollution level |
| Color | Grey / red / customized |
| Operating Environment | Outdoor, polluted area, coastal area, humid area, sandy area |
| Applicable Standard | IEC, ANSI or customer-specified standard |
| Brand | Wishpower |
| Customization | Drawings, dimensions, fittings and electrical parameters available |
Product Structure
Main Applications
Wishpower 69kV line post composite insulator is commonly used in:
69kV overhead transmission lines
69kV distribution line upgrade projects
Urban and rural power distribution networks
Industrial power supply lines
Coastal, salt-fog and heavily polluted areas
Wind power and solar power transmission lines
Substation incoming and outgoing line support systems
High-altitude, high-wind and harsh climate regions
Testing Capability
Wishpower applies strict inspection and testing procedures for composite insulators to ensure stable performance in high-voltage line applications.
Visual and Dimensional Inspection
Checks the housing surface, fitting dimensions, mounting holes and overall product consistency.Mechanical Performance Test
Verifies the strength of the core, fittings and complete insulator structure.Power Frequency Withstand Voltage Test
Evaluates insulation capability under rated and specified test voltage conditions.Lightning Impulse Withstand Test
Checks the electrical performance of the insulator under impulse overvoltage conditions.Hydrophobicity Test
Evaluates the water-repellent performance of the silicone rubber housing.Sealing Performance Inspection
Ensures the end fitting area is properly sealed against moisture ingress.Aging and Environmental Tests
UV aging, salt fog, humidity and weathering tests can be conducted according to project requirements.
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: What standards can your products meet?
A: Our products can be designed and tested according to IEC, ANSI, GB and customer-specific technical requirements.
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: 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 provide customized insulation products?
A: Yes. WishPower supports customized voltage ratings, creepage distances, fittings, colors and drawings according to project requirements.
Q: What information should I provide for a quotation?
A: Please provide voltage level, product type, quantity, application environment, standard, drawings or technical specifications if available.
