We have been engaged in the research and development and production of 45kV Composite Deadend Insulators, station post insulators, Composite Post Insulator with rich experience focusing on this industry for several years, and always in possession of the most advanced formwork technology consultation. Our products have wide interchangeability with similar products in the international arena. Our service tenet is to provide customers with the best cost-effective products and good services, and to maintain good cooperation with customers. We create development space for employees, enhance the value of talent, improve the quality of life of employees, and realize the common development of employees and enterprises. Whether an enterprise can continuously meet the needs of customers and the market depends on the work output of its employees. The work effect of employees comes from the management and operation of talents.
Transmission Line Post Insulators

1. About us
Wuhan Line Power Transmission Equipment Co., Ltd specializing in the production of composite insulator, undertake external processing and manufacturing, mold development, product innovation as the leading factor, the company is an expert in composite insulator, has the high and low voltage electrical appliances production experience for many years, have their own mode of production of a business, the company has to make the insulator industry bigger and stronger for ambition.To be the leader of the enterprise, we will make the high and low voltage insulator business every corner of the world. We are determined to be the insulator of the world, but more importantly, to be the insulator of the world.
We have exported more than thousands of composite vertical line post insulators all over the world, just like US, UK, Australia, Brazil, Bulgaria,Russia, etc., below are a few of drawings. The first one is vertical trunnion with base, the second one is vertical trunnion with long bolt, the third one is no base. We could provide other types too.
2. Catalog
Typical Line Voltage | Section Length | Dry Arcing Distance | Leakage Distance | Specified Cantilever Load | Max. Design | 1min. Power Frequency Withstand Voltage | Lightning Impulse Withstand Voltage |
69 | 1097±30 | 900 | 2600 | 22.2 | 11.1 | 185 | 410 |
132 | 1564±20 | 1380 | 4000 | 17 | 8.5 | 350 | 650 |
220 | 2278±30 | 1920 | 6530 | 18.5 | 10.2 | 540 | 1030 |
363 | 3000±30 | 2820 | 8800 | 4 | 2 | 650 | 1300 |
3. Reference drawings

Available end fittings for Composite vertical line post insulator
Vertical Trunnion

Flange

Flange Base

4. Payment & Shipping Terms:
Type: | Vertical Line Post |
Minimum Order Quantity: | 10 pcs |
Price: | Negotiable |
Packaging Details: | plywood case, fumigated solid wood case |
Delivery Time: | 45~50 days EX-works |
Standard: | IEC 61952, ANSI C29.1 |
5. RAW MATERIALS:
End Fittings | Core | Sheds and Housing |
Hot dip galvanized cast iron or cast steel | Epoxy & Glass fiber | HTV Silicone Rubber |
Min. thickness of the galvanization: 86μm | Diameter(mm): Φ38, Φ40, Φ55, Φ70, Φ90, Φ120 | Color: Grey, Red or others |
6. Production Process(Part):
Whole injection

Taking the most advanced automatic overall injection moulding technic and connection method of crimping for production and assembling, and the whole crimping procedure controlled by computer and the crimping result monitored by ultrasonic detector to assure each product is qualified.

Waiting for testing, we have full range test equipment, we could perform the FAT based on IEC 61952.

We could provide different packing methods by client requirment. Plywood case and solid wood case are most common selected method.

We offer fantastic energy in high quality and enhancement, merchandising, profits and promoting and procedure for Porcelain Ceramic Line Post Station Post Insulator. Our company has established a good organization system and technical network. Our market covers the whole country and extends to many countries and regions. In the current increasingly fierce market competition, our company will continue to strive for improvement, continuously deepen the scientific management of enterprises and improve the scientific and technological content of products.
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