- 产品简介
- 技术规格
- 应用领域
- 测试能力
- 包装与定制
产品详情
The 27.5kV bow-type cantilever support composite insulator is an important insulation component used in railway traction power supply and overhead contact systems. It is commonly installed in cantilever support structures, positioning devices and railway OCS assemblies where both electrical insulation and mechanical strength are required.
Wishpower composite insulators offer the following advantages:
High-temperature vulcanized silicone rubber housing with excellent hydrophobicity.
High-strength fiberglass core rod for stable mechanical support.
Lightweight design for easier transportation, installation and maintenance.
Optimized shed profile to improve creepage distance and reduce pollution flashover risk.
Suitable for 27.5kV electrified railway traction power supply and overhead contact line systems.
Core Features
Reliable Electrical Insulation
The product is designed for 27.5kV railway systems and helps isolate energized components from support structures.Excellent Pollution Flashover Resistance
The silicone rubber housing provides strong hydrophobic performance, making the insulator suitable for dusty, humid, coastal or polluted environments.Stable Mechanical Support
The fiberglass core rod provides bending strength, tensile strength and fatigue resistance for cantilever support applications.Lightweight Composite Design
Compared with traditional porcelain insulators, composite insulators are lighter and easier to install in railway construction projects.Weather and Aging Resistance
The outer silicone rubber layer offers resistance to UV radiation, ozone, temperature variation and outdoor aging.Low Maintenance Requirement
The hydrophobic surface helps reduce contamination accumulation and supports lower maintenance costs during long-term operation.
Product Structure
The 27.5kV bow-type cantilever support composite insulator is generally composed of the following parts:
Fiberglass Core Rod
The core rod works as the main mechanical load-bearing component and provides bending and tensile strength.Silicone Rubber Housing
The outer insulation layer protects the core and improves weather resistance, pollution resistance and dielectric performance.Composite Shed Profile
The shed design increases creepage distance and improves performance under rain, fog and polluted conditions.Metal End Fittings
Hot-dip galvanized steel fittings or customized metal fittings are used for connection with railway cantilever structures.End Sealing Area
The sealing design helps prevent moisture ingress and improves long-term reliability.
技术参数
| Item | Technical Parameter |
|---|---|
| Product Name | 27.5kV Bow-Type Cantilever Support Composite Insulator |
| Application System | Electrified Railway Overhead Contact System |
| Rated Voltage | 27.5kV |
| Product Type | Bow-Type Cantilever Support Composite Insulator |
| Housing Material | High-Temperature Vulcanized Silicone Rubber |
| Core Material | Epoxy Fiberglass Core Rod |
| End Fittings | Hot-Dip Galvanized Steel / Customized Fittings |
| Structure Type | Bow-Type Cantilever Support Structure |
| Creepage Distance | Customized according to project requirements |
| Mechanical Performance | Bending, tensile and vibration-resistant design |
| Operating Environment | Outdoor, railway line, polluted area, humid area, temperature-changing area |
| Installation Method | Connected with railway cantilever, support bracket or positioning structure |
| Color | Grey, red or customized |
| Applicable Standards | IEC, TB and customer technical specifications |
| Brand | Wishpower |
产品结构
主要应用领域
The 27.5kV bow-type cantilever support composite insulator is commonly used in:
Electrified railway overhead contact systems
High-speed railway traction power supply lines
Conventional railway OCS upgrade projects
Intercity railway and passenger dedicated lines
Railway cantilever support structures
OCS positioning and support assemblies
Coastal, humid, dusty or polluted railway sections
Replacement of traditional railway insulation components
测试能力
Wishpower can perform quality inspection and testing according to railway project requirements:
Visual and Dimensional Inspection
To verify product appearance, shed profile, fitting dimensions and assembly consistency.Power Frequency Withstand Voltage Test
To confirm the insulation performance under specified voltage conditions.Lightning Impulse Withstand Test
To evaluate insulation capability under transient overvoltage conditions.Mechanical Load Test
To check bending, tensile or specified mechanical load performance.Hydrophobicity Test
To evaluate the surface hydrophobic condition of the silicone rubber housing.Sealing Performance Inspection
To check the connection area between metal fittings and composite housing.Aging and Weather Resistance Verification
UV aging, thermal aging, damp heat or salt fog tests can be conducted according to project requirements.
包装与运输
为确保产品在运输和储存过程中的安全，我们采用以下包装方法：
- 独立包装: 每件产品均用保护膜包裹，装入高强度纸箱，并用缓冲材料进行缓冲。
- 托盘包装: 多个产品固定在木托盘上，并用拉伸膜包裹，适合集装箱运输。
- 出口包装: 根据海运要求提供熏蒸木箱、防潮处理和详细的装箱单。
定制服务
WishPower可根据客户需求提供以下定制选项：
- 结构尺寸: 调整总高度、爬升高度、棚架数量和棚架直径。
- 端部配件: 根据连接要求定制球窝、舌形接头、环眼或其他接口类型。
- 颜色: 标准灰色，红色、黄色、蓝色等其他颜色可根据最低起订量提供。
- 特殊环境: 适用于极寒（-60°C）、强紫外线照射、严重污染和其他恶劣条件的配方。
- 电压等级: 10kV 至 1000kV 全范围定制。
- 标记: 客户的标志或型号可以模压或印刷在产品上。
如有任何定制需求，请联系我们的销售工程师。我们将在24小时内提供技术解决方案。
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: 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: 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: Can you provide customized insulation products?
A: Yes. WishPower supports customized voltage ratings, creepage distances, fittings, colors and drawings according to project requirements.
