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Help CenterPorcelain Insulator for 20 kV and 35 kV Industrial Plant Power Feeders
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As a specialized manufacturer of electrical insulation components, Jinhua Dika Electrical Equipment Co., Ltd. designs and produces high-performance porcelain insulators specifically engineered for the demanding environments of industrial plant power feeders. Our insulators for 20 kV and 35 kV applications represent a core product line, developed through our ISO9001-certified manufacturing processes to ensure reliability, durability, and safety in critical power distribution infrastructure. We understand that industrial operations depend on uninterrupted power supply, and our insulators are built to provide exceptional insulation and mechanical support under high voltage stresses.
These porcelain insulators are not merely components; they are guardians of your electrical system's integrity. Crafted from premium materials and subjected to rigorous testing, they offer a robust solution for feeder lines that must withstand industrial atmospheres, potential contamination, and long-term operational loads. By choosing Dika's insulators, you invest in reducing downtime, enhancing safety compliance, and securing the backbone of your plant's electrical network.
Key Features & Technical Advantages:
- Premium Porcelain Material: Utilizes high-grade, vitrified porcelain known for its excellent dielectric strength, thermal stability, and resistance to surface weathering. This material ensures consistent performance over decades.
- Engineered for Specific Voltages: Precisely designed and tested for nominal voltages of 20 kV and 35 kV, meeting the electrical clearance and insulation requirements for these common industrial feeder levels.
- High Mechanical Strength: The porcelain body and metal fittings (if applicable) are designed to withstand significant mechanical loads from conductor weight, wind, and ice, preventing mechanical failure.
- Superior Environmental Resistance: The glazed surface provides excellent resistance to pollution, moisture, UV radiation, and chemical exposure typical in industrial zones, maintaining high insulation resistance.
- Thermal Shock Resistance: Capable of handling sudden temperature changes without cracking or degradation, a critical feature for outdoor installations subject to varying climates.
- Customizable Configurations: Available in standard pin-type or suspension-type designs to suit different mounting and structural requirements of your feeder line layout. Specific fittings and dimensions can be customized upon request.
Detailed Specifications & Parameters:
| Parameter | Value / Description | Note |
|---|---|---|
| Nominal Voltage | 20 kV, 35 kV | Designed for these specific system voltages |
| Rated Lightning Impulse Withstand Voltage | ≥ 125 kV (for 35 kV), ≥ 75 kV (for 20 kV) | Typical values; exact specs available upon request |
| Power Frequency Wet Withstand Voltage | ≥ 50 kV (for 35 kV), ≥ 30 kV (for 20 kV) | 1-minute test voltage under wet conditions |
| Mechanical Strength (Pin Type) | Bending Strength: 12 kN - 20 kN range | Depends on specific model and size |
| Material & Surface | Vitrified Porcelain with Glazed Finish | Standard white glaze; smooth, impervious surface |
| Standard Mounting | Pin Type (for crossarm), Suspension Type (for hanging) | Most common configurations for feeders |
| Operating Temperature Range | -40°C to +70°C | Suitable for most global climatic conditions |
Benefits for Your Industrial Plant:
- Enhanced System Reliability: Minimizes the risk of flashovers, short circuits, and insulation failures on your critical power feeders, contributing to overall plant uptime.
- Long Service Life & Low Maintenance: Porcelain's inherent durability translates into a long operational life with minimal cleaning or maintenance requirements, reducing lifecycle costs.
- Safety Compliance: Helps meet electrical safety standards for high-voltage installations by providing reliable insulation and clearances.
- Adaptability to Industrial Environments: Specifically suited for the polluted, humid, or chemically active atmospheres often found around industrial facilities.
- Global Supply Support: Backed by our manufacturing capability and export experience to markets worldwide, ensuring you receive consistent product quality and reliable logistics.
Trust in a product backed by a proven manufacturer. Jinhua Dika Electrical Equipment operates under an ISO9001 quality management system, ensuring every insulator undergoes controlled processes from material selection to final inspection. With an annual export value in the range of US$1 Million to US$1.5 Million, we serve a diverse global clientele across North America, South America, Europe, Asia, Africa, and Oceania, demonstrating our product's acceptance in various technical and environmental standards. Our team of 11-50 dedicated professionals focuses on the electrical insulation sector, providing not just products but also technical support. We ship efficiently from major Chinese ports like Shanghai, Tianjin, Guangzhou, and Ningbo, facilitating smooth delivery to your location.
Choosing our porcelain insulators means selecting a component engineered for performance and longevity in industrial settings. It is an investment in the resilience of your power distribution system. For detailed specifications, pricing, or to discuss custom requirements for your 20 kV or 35 kV feeder projects, please contact us. Let our expertise in electrical insulation contribute to the safety and efficiency of your industrial plant.
Frequently Asked Questions (FAQ):
Q1: What are the main advantages of porcelain over other insulator materials like polymer or glass for industrial feeders?
Porcelain offers exceptional long-term stability, high resistance to surface tracking under polluted conditions, superior mechanical strength, and proven performance over decades. It is less susceptible to UV degradation and certain chemical attacks compared to some polymers, making it a reliable choice for harsh industrial environments.
Q2: Are these insulators suitable for coastal industrial plants with high salt contamination?
Yes, the glazed porcelain surface provides good resistance to salt fog and pollution. However, for extremely severe salt-laden environments, specific design considerations or more frequent maintenance might be advised. We can provide guidance based on your location's contamination level.
Q3: Can you provide insulators with different pin thread sizes or fitting types?
Absolutely. As a manufacturer, we offer customization options for metal fittings, including thread sizes, pin lengths, and cap designs to match your existing hardware or structural standards. Please share your requirements for a tailored solution.
Q4: What is the typical delivery lead time for standard 20kV/35kV porcelain insulators?
For standard models in moderate quantities, our typical lead time is 4-6 weeks after order confirmation, including production and preparation for shipment. This can vary based on order volume and specific customization.
Q5: Do you provide test reports or certificates for the electrical and mechanical parameters?
Yes, we can provide factory test reports for key parameters like withstand voltages and mechanical strength upon request. Our manufacturing process is ISO9001 certified, ensuring documented quality control.
Q6: How do I determine whether I need pin-type or suspension-type insulators for my feeder line?
Pin-type insulators are typically mounted horizontally on crossarms of poles or structures. Suspension-type (or disc) insulators are hung vertically from structures and are often used in longer spans or higher mechanical load situations. The choice depends on your line design and structural support. We can assist based on your layout drawings.
Q7: Are these insulators compatible with both overhead aluminum conductors and ACSR (Aluminum Conductor Steel Reinforced) cables?
Yes, they are designed to be compatible with standard overhead conductors used in industrial feeder applications, including aluminum and ACSR. The conductor attachment hardware (binding wires, clips) is selected accordingly.
Q8: What packaging is used to ensure safe transportation of these porcelain products?
We use robust packaging, typically wooden crates or strong cardboard boxes with internal cushioning, to protect the insulators during shipping. Each insulator is often individually wrapped to prevent surface abrasion.
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