Composite post insulators are used to install busbars, copper bars or support other electrical equipment in substations. They are also used to assemble disconnectors or fuses.
Horizontal post insulators are indispensable key components in the power system. They are mainly used to support and fix live conductors, and insulate them from the ground, playing a vital role in ensuring the safe, stable and efficient power transmission. Our horizontal post insulators provide you with reliable insulation solutions with advanced production processes and strict quality control.
Product Features
- Excellent Insulation Performance: Using high-quality insulating materials, it can maintain excellent insulation performance in a high-voltage environment, effectively preventing the occurrence of leakage and flashover phenomena, and ensuring the safe operation of power equipment.
- High Strength and Stability: With high-strength mechanical properties, it can withstand large mechanical loads and external impacts. Even in harsh natural environments, it can maintain a stable structure and performance, reducing power outages caused by insulator damage.
- Strong Weather Resistance: Through special surface treatment and optimization of the material formula, it has good weather resistance and can adapt to various complex climatic conditions, such as high temperature, low temperature, humidity, dust, etc., effectively extending the service life of the insulator.
- Good Self-cleaning Performance: The surface is smooth and has a certain degree of hydrophobicity, making it less likely to adsorb dust and dirt. It can be automatically cleaned by the scouring of rainwater, reducing the frequency and cost of manual maintenance.
- Convenient Installation: With a reasonable structural design, the installation method is simple and flexible. It can be quickly installed and replaced according to different usage scenarios and requirements, improving work efficiency.
- Diverse Specifications: Providing a variety of voltage levels (9-248kV) and different structural forms to meet the needs of different power systems and equipment, and providing customers with personalized solutions.
Operating Environment Conditions
- Altitude: Suitable for areas with an altitude of no more than 2,000 meters. For high-altitude areas, products with special designs can be provided according to specific requirements.
- Ambient Temperature: The operating temperature range is from -40°C to +70°C, which can adapt to both extremely cold and extremely hot climatic conditions.
- Relative Humidity: When the maximum temperature is +25°C, the relative humidity does not exceed 95%; at lower temperatures, the relative humidity is allowed to increase appropriately.
- Pollution Level: Corresponding anti-pollution insulators can be provided according to different pollution environments, suitable for lightly polluted, moderately polluted and heavily polluted areas.
- Earthquake Intensity: It can withstand an earthquake with an intensity of no more than [4.5] degrees, ensuring the safe operation of power equipment during natural disasters such as earthquakes.
Main Technical Parameter Table
| Item |
Technical Parameters |
| Voltage Level |
9kV, 10kV, 15kV, 20kV, 35kV, 66kV, 110kV, 132kV, 154kV, 220kV, 248kV, etc. |
| Rated Mechanical Failure Load |
[5-22.5] kN (depending on different specifications) |
| Power Frequency Withstand Voltage (1min) |
[X] kV (dry and wet conditions, depending on the voltage level) |
| Lightning Impulse Withstand Voltage (1.2/50μs) |
[Specific value] kV (depending on the voltage level) |
| Creepage Distance |
[310] mm/kV (depending on the pollution level and voltage level) |
| Material |
Composite material (depending on customer requirements) |
| Structural Form |
Solid rod type, hollow porcelain post type, composite post type, etc. |
| Overall Dimensions |
[Specific dimensions] mm (depending on different specifications) |
| Weight |
[Specific weight] kg (depending on different specifications) |
Application Fields
- Substations: Used for busbar support, circuit breaker support, etc. in substations to ensure the insulation and mechanical fixation between electrical equipment.
- Transmission Lines: On the towers of transmission lines, as the support and insulation components of conductors, ensuring reliable power transmission.
- Industrial Electrical Equipment: Widely used in the electrical equipment of various industrial sites, such as factories, mines, metallurgy, etc., providing stable insulation support.
- New Energy Power Generation: Suitable for new energy fields such as wind power generation and solar power generation, providing reliable insulation protection for power generation equipment and transmission systems.
Quality Assurance
We strictly follow relevant international and domestic standards for production and testing to ensure that each product meets high-quality requirements. Our products have passed a number of authoritative certifications, such as [Tanzania National Power Grid Corporation], [Kenya National Power Grid Corporation], etc. At the same time, we provide a complete after-sales service system to provide customers with timely technical support and solutions to problems encountered during the use of our products.
