A composite tension insulator is engineered to withstand mechanical tension in overhead power lines while preventing electrical current from leaking to the ground. Unlike traditional porcelain or glass insulators, composite versions use a combination of materials—typically a fiberglass-reinforced plastic (FRP) core, a weather-resistant polymer housing (such as silicone rubber), and metal end fittings. This construction makes them lighter, more flexible, and less prone to breakage, even in extreme temperatures or high-wind areas.
The Equivalent of Composite tension insulator SDI90.280 in China: PTI-1-400 HDPE Insulator
Jera Line is a leading manufacturer based in China, specializing in low-voltage and medium-voltage cable accessories for over ten years.
The lightweight high tension polymer insulator PTl-1-400, is complied with international standard lEC 61109 (insulators -Ceramic, Glass,Polymer). The tests are including Mechanical load test, electrical testing, visual and dimensional inspection and environmental test and so on.
In Jera line laboratory, there are testing equipment, which can conductor these tests as routine factory tests. to ensure its reliability, safety, and performance under operational conditions.In additional, Jera Line established an in-house laboratory to conduct the necessary test, with testing equipment for:
Jera Line is now an experienced manufacturer with large-scale production facilities who was established in 2012, . Choosing Jera Line, you will find the benefits as follows:
1. Superior Product Quality & Reliability
Some tension insulators comply with international standards, undergoing strict raw material inspection and finished product testing. Adopt advanced manufacturing processes (e.g., high-pressure molding, glaze firing) to ensure excellent mechanical strength and electrical insulation performance.
2. Customized Solutions & Technical Support
Offer tailored tension insulator designs based on customers’ specific application scenarios (e.g., high-voltage transmission lines, railway power systems).A professional R&D team provides pre-sales technical consultation and post-sales installation guidance.
Continuously upgrade products to meet the latest industry requirements for energy efficiency and safety.
3. Efficient Supply Chain & Competitive Pricing
Maintain a stable inventory of standard products to ensure fast delivery (usually 7-15 working days).
Cooperate with reliable logistics partners to provide global shipping services, ensuring on-time arrival of goods.
Direct sales from the factory eliminate intermediate links, offering competitive prices without compromising quality.
It is easy to find Jera Line through the following channels:
Our E-mail address: info@jera-energy.com
Our Energy WhatsApp: 86 - 13373899572
Contact Page: Contact Us - JERA LINE (all contact information is available here)
Jera Line welcomes customers worldwide to contact us at any time.
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