Over the years, we have continued to innovate, surpass ourselves, challenge the limits, and strive to provide customers with 100% quality Horizontal Post Insulator, Polymer Tension insulator for electrified railway, 138kV station post insulator . We look forward to your visit and guidance. Our company believes in the power of innovation and creativity to drive success and growth. We are dedicated to social responsibility and environmental sustainability. We offer a complete range of products and services, from design to production to delivery. In order to better meet the needs of our customers, we work closely with companies from different industries, allowing us to be flexible and active in finding good solutions for each task.
69kV Horizontal Line Post Insulator (Polymer Type) – With Aluminum Gain Base

Designed for overhead transmission systems, the 69kV horizontal line post insulator is a durable polymer line post insulator.
It is made up of hot-dip galvanized steel end fittings, an excellent silicone rubber housing, and a bearing solid fiberglass core rod. In addition to being lightweight and simple to install, the design provides excellent mechanical and electrical performance.
This polymer-type insulator is excellent for applications needing high stability and long-term reliability because it is specifically designed to handle cantilever, tensile, and compressive loads.
Technical Description
| Core Rod Diameter | 70 mm solid fiberglass core |
| Structure | silicone rubber housing, end fittings, and a cylindrical insulating core |
| End Fittings | Hot-dip galvanized cast or forged steel |
| Base Type | Aluminum gain base |
| Orientation | Horizontal clamptop design, standard leak distance |
| Application | 69 kV transmission lines installed on the cross-arms of poles or towers |
Strong attachment on steel or wood cross-arms is ensured by the Aluminum Gain Base, which provides precise position and durable mechanical support.


High-voltage transmission lines are suitable for dirty areas
Color: red, gray, blue, yellow according to customer requirements
Implementation standards;IEC 61109 GB/T 19519-2014
Different end fittings for Composite horizontal line post insulator








More information
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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 |
950±30 |
717 |
2030 |
22.2 |
11.1 |
205/185 |
410 |
|
115 |
1090±30 |
870 |
2450 |
18 |
9 |
260/240 |
445 |
|
132 |
1274±30 |
1042 |
3202 |
17.5 |
7.4 |
325/275 |
560 |
|
145 |
1435±30 |
1210 |
3720 |
12 |
6 |
325/275 |
650 |
|
161 |
2130±30 |
1920 |
5800 |
9 |
4.8 |
504/464 |
1050 |
|
220 |
2926±40 |
2660 |
8680 |
6 |
3 |
466/420 |
1050 |
|
230* |
2616±30 |
2280 |
7730 |
12 |
6.3 |
684/578 |
1131 |
Factory Test Report




Application

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Our business has strived to establish a highly efficient and stable team staff and explored an effective good quality regulate course of action for 11kv 33kv Composite Horizontal Line Post Insulator. 'Control the quality by the details, show the strength by quality'. We've got a lot of customers in many countries.
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