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35kV Crossarm Composite Insulator for Outdoor Overhead 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
The 35kV crossarm composite insulator is an important insulating and supporting component for medium and high voltage overhead distribution lines. It is designed to support conductors, provide reliable electrical insulation, and improve line structure performance. Compared with traditional porcelain insulators or steel crossarm systems, Wishpower 35kV crossarm composite insulators offer lightweight construction, high mechanical strength, excellent anti-pollution performance, aging resistance, and easier installation for outdoor power distribution projects.
Main product advantages include:
Reliable insulation performance: Silicone rubber housing provides excellent hydrophobicity and hydrophobicity transfer, reducing flashover risk in polluted environments.
Lightweight design: Composite material structure makes the product easier to transport, install, and maintain.
High mechanical strength: The fiberglass core rod provides good bending, tensile, and impact resistance.
Excellent weather resistance: Suitable for outdoor environments with UV exposure, rain, snow, humidity, salt fog, and temperature variation.
Lower maintenance cost: The product is resistant to breakage, pollution, and corrosion, helping reduce inspection and replacement frequency.
Suitable for line upgrading: Ideal for overhead distribution line insulation improvement and traditional crossarm replacement projects.
Core Features
Designed for 35kV power systems
Suitable for 35kV overhead distribution lines and high voltage outdoor grid applications.Excellent anti-pollution flashover performance
Silicone rubber sheds provide strong hydrophobic performance in dust, salt fog, humidity, and industrial pollution areas.Lightweight composite structure
The composite design reduces installation load and improves construction efficiency.High mechanical load capacity
The fiberglass core rod provides reliable bending and tensile performance for conductor support applications.Strong aging and UV resistance
The silicone rubber housing offers good resistance to tracking, erosion, UV radiation, and outdoor aging.Low maintenance requirement
Compared with traditional porcelain solutions, composite insulators reduce the risk of breakage and pollution-related failures.
Product Structure
The 35kV crossarm composite insulator usually consists of the following parts:
Fiberglass core rod
The main load-bearing component, providing mechanical strength and bending resistance.Silicone rubber housing and sheds
Provides external insulation protection, increases creepage distance, and improves weather resistance.End fittings
Usually made of hot-dip galvanized steel or customized metal fittings for connection with poles, towers, conductors, or mounting brackets.Sealing system
Designed to prevent moisture from entering the core rod and improve long-term reliability.Integrated molded structure
Manufactured by injection or molding process to ensure stable product quality and structural consistency.
Technical Specifications
| Parameter | Application Range |
|---|---|
| Product Name | 35kV Crossarm Composite Insulator |
| Rated Voltage | 35kV |
| Applicable System | Medium and high voltage overhead distribution lines |
| Insulation Material | High temperature vulcanized silicone rubber |
| Core Material | Epoxy fiberglass core rod |
| Fitting Material | Hot-dip galvanized steel or customized metal fittings |
| Installation Method | Pole-mounted, crossarm-mounted, overhead line support |
| Service Environment | Outdoor, humid, polluted, salt fog, cold and hot areas |
| Main Function | Conductor support, electrical insulation, line structure optimization |
| Applicable Line | 35kV distribution line, overhead line, rural grid, urban distribution network |
| Shed Design | Customizable according to creepage distance and pollution level |
| Mechanical Performance | Bending, tensile, and fitting strength can be customized |
| Standards | IEC 61109, IEC 61952, IEC 62217 or customer specifications |
| Service Life | Suitable for long-term outdoor operation |
| Customization | Size, fittings, creepage distance, color, and structure customization available |
Product Structure
Main Applications
Wishpower 35kV crossarm composite insulators are widely used in:
35kV outdoor overhead distribution lines
Urban distribution network upgrading
Rural power grid construction and renovation
Mountain and complex terrain power lines
High-pollution overhead line areas
Coastal and salt fog environments
Industrial park power distribution systems
Wind farm collection lines
Solar power plant collection lines
Pole and tower insulation renovation projects
Replacement of traditional steel crossarms or porcelain insulators
Outdoor power projects requiring lightweight, corrosion-resistant, and low-maintenance insulation solutions
Testing Capability
Wishpower applies strict quality control and testing procedures to ensure stable performance of 35kV crossarm composite insulators.
Visual and dimensional inspection
Checks surface quality, shed profile, fitting dimensions, mounting holes, and product consistency.Mechanical performance test
Tests bending, tensile, torsion, or connection strength according to product design requirements.Power frequency withstand voltage test
Verifies insulation performance under specified voltage conditions.Lightning impulse withstand test
Confirms insulation reliability under overvoltage impulse conditions.Partial discharge test
Evaluates internal insulation defects and electrical stability.Hydrophobicity test
Confirms silicone rubber surface performance in humid and polluted environments.Aging and weather resistance test
Includes UV, salt fog, damp heat, and thermal cycling tests according to project requirements.Sealing performance inspection
Checks the sealing reliability between end fittings and silicone rubber housing.
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 information should I provide for a quotation?
A: Please provide voltage level, product type, quantity, application environment, standard, drawings or technical specifications if available.
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: 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: 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: Can you provide customized insulation products?
A: Yes. WishPower supports customized voltage ratings, creepage distances, fittings, colors and drawings according to project requirements.