4E-YJZWF Composite Bushing Outdoor Termination

Our composite bushing outdoor termination products, 4E-YJZWCF3 and 4E-YJZWCF4, are designed for high reliability in demanding outdoor high-voltage applications, particularly in environments with anti-pollution levels III and IV. Here’s a structured breakdown of their key features and advantages:

1. Key Components & Materials

• Termination: Designed for secure cable connection.

• Stress Cone: Made from imported liquid silicone rubber (LSR) via injection molding, ensuring:

• Long-term mechanical stability (lasting hold power).

• Superior electric field uniformity for enhanced insulation performance.

• Composite Casting Bushing:

• Structure: Skirt design for better creepage distance.

• Core Material: High-strength epoxy fiberglass insulation tube.

• Coating: Silicone rubber for weather and pollution resistance.

• Internal Filling: High-grade insulating oil with excellent dielectric properties.

• Tail Tube: Ensures secure cable entry and sealing.

  
  

2. Critical Performance Features

• Low Interpenetration Between Materials:

• Mutual dissolution/penetration between silicone stress cone & insulating oil is minimized (≤ 1/1000), ensuring long-term stability.

• Advanced Sealing System:

• Multiple sealing barriers to prevent water ingress & oil leakage.

• Seals made from imported NBR or silicone rubber for durability.

• Corrosion-Resistant Fasteners:

• Stainless steel hardware with waterproof sealing for long-term reliability.

3. Applications & Benefits

• Ideal for:

• Outdoor high-voltage overhead lines (up to designated voltage class).

• Cable termination in polluted environments (anti-pollution levels III/IV).

• Key Advantages:

• Superior pollution resistance (silicone rubber sheds prevent flashovers).

• Oil-filled design enhances insulation & thermal stability.

• Robust mechanical & electrical performance under harsh conditions.

4. Suggested Improvements for Marketing & Technical Docs

• Clarify Voltage Rating: Specify the voltage class (e.g., 10kV, 35kV, 110kV).

• Certifications: Mention compliance with IEC, ANSI, or GB standards.

• Lifespan/MTBF: Provide expected service life or maintenance intervals.

• Comparative Advantage: Highlight differences between 4E-YJZWCF3 & 4E-YJZWCF4 (e.g., higher pollution resistance, different voltage ratings).

5. Advantages

Composite Bushing Outdoor Termination - Superior Performance Advantages

While maintaining all the beneficial characteristics of traditional porcelain bushings, our composite bushing outdoor termination delivers significant performance enhancements:

1. Enhanced Mechanical Properties

• Features an epoxy fiberglass reinforced inner layer with superior mechanical strength compared to porcelain

• Demonstrates improved impact resistance and structural integrity

• Lightweight construction (<20% the weight of porcelain) simplifies handling and installation

   2. Advanced Safety Features

• Flexible silicone rubber exterior eliminates explosion risks

• Fragmentation-free design ensures safety in populated areas

• Maintains structural containment during fault conditions

   3. Optimized Electrical Performance

• Superior creepage distance (25mm/kV) meets Anti-Pollution Level III requirements

• Excellent hydrophobicity and pollution resistance

• Maintains consistent dielectric strength in harsh environments

   4. Reduced Lifecycle Costs

• Self-cleaning surface eliminates maintenance requirements

• No periodic washing needed (unlike porcelain requiring annual cleaning)

• Corrosion-resistant materials extend service life

   5. nstallation Advantages

• Lightweight design (1/5 the weight of porcelain)

• Reduced transportation and handling costs

• Simplified installation process

   6. Environmental Resistance

• Excellent UV and ozone resistance

• Superior weathering performance

• Wide operating temperature range