Request a Quote
Get Free Samples
Request Free Catalog
The ZJ-40.5 LYC134 Post Insulator is a premium solution engineered for high-voltage Switchgear guide systems. Crafted using cutting-edge epoxy resin molding technology, this post insulator offers exceptional mechanical strength, electrical insulation, and environmental resistance. Whether you’re managing a substation, industrial control cabinet, or indoor switchgear panel, this product ensures long-lasting reliability and consistent performance—especially in challenging environments or compact setups requiring high-voltage insulation.

Normal Operating Environment Conditions
The ZJ-40.5 LYC134 Post Insulator is designed to thrive under the following conditions:
- Altitude: ≤1000m (standard); ≤3000m (plateau type)
- Ambient Temperature: -10°C to +40°C
- Relative Humidity: Daily average ≤95%; Monthly average ≤90%
- Environment: Free from corrosive gases, flammable vapors, heavy pollution, smoke, salt fog, or conductive dust
- Vibration: No frequent mechanical vibrations or impacts
- Pollution Resistance: Suitable for dew and contamination level II environments
This adaptability makes it a standout post insulator for diverse applications.
Technical Specifications
Below are the detailed specifications of the ZJ-40.5 LYC134 Post Insulator:
Parameter | Value |
---|---|
Model Name | ZJ-40.5//175×320–380 |
Rated Voltage | 40.5 kV |
Power Frequency Withstand Voltage | 95 kV / 1 min |
Partial Discharge | <10 pC |
Creepage Distance | 830 mm |
Maximum Diameter | 175 mm |
Height | 320–380 mm |
Bending Strength | 16000 N |
Material | Epoxy Resin |
Color | Brown, Red |
Application | High Voltage Switchgear |
Certification | CE, ISO 9001:2000 |
MOQ | 50 Pieces |
Brand | Liyond |
Payment Terms | L/C, T/T, Western Union |
These specs highlight why this post insulator excels in high-voltage environments.
Features and Benefits of the ZJ-40.5 LYC134 Post Insulator
- High Mechanical Strength: With a bending strength of 16000 N, this post insulator withstands significant mechanical stress, ensuring durability in tough conditions.
- Superior Insulation Performance: Boasting a low partial discharge (<10 pC) and a power frequency withstand voltage of 95 kV, it delivers reliable electrical insulation.
- Enhanced Creepage Distance: The 830 mm creepage distance boosts performance in polluted or humid settings, minimizing electrical failure risks.
- Durable Epoxy Resin Material: Made from high-quality epoxy resin, this post insulator is flame-retardant, anti-tracking, and weather-resistant for long-term use.
- Compact and Customizable Design: Its adjustable height (320–380 mm) fits compact switchgear setups, with customization options available.
These features make the ZJ-40.5 LYC134 a top-tier post insulator for demanding applications.
Applications of the Post Insulator
The ZJ-40.5 LYC134 Post Insulator is versatile and ideal for:
- Indoor high-voltage switchgear panels
- Compact substations
- Distribution cabinets in power utilities
- Industrial power control systems
- Renewable energy installations (e.g., wind or solar substations)
Its adaptability ensures it meets the needs of various high-voltage setups.
Frequently Asked Questions (FAQ)
1. What is a Post Insulator used for?
A post insulator supports and insulates live conductors in high-voltage environments like switchgear, circuit breakers, and distribution equipment. It provides both mechanical support and dielectric isolation.
2. Is the ZJ-40.5 LYC134 Post Insulator suitable for polluted environments?
Yes. With an 830 mm creepage distance and robust epoxy resin construction, this post insulator performs reliably in pollution level II environments, including humid or dusty conditions.
3. Can the Post Insulator be customized in color or size?
Yes. Standard colors are brown and red, but other colors and sizes can be tailored upon request, depending on order volume.
Why Choose the ZJ-40.5 LYC134 Post Insulator?
For a reliable, efficient, and compact post insulator in high-voltage applications, the ZJ-40.5 LYC134 stands out. Built with premium epoxy resin and certified to CE and ISO 9001:2000 standards, it guarantees electrical safety and mechanical durability—even in the harshest environments.
For pricing, customization options, or delivery details, contact our sales team today!