JD - Electric, a leading enterprise in the electrical equipment industry, has recently announced the successful development of its new product, Extension Link Insulators. This achievement marks a significant step forward in the field of electrical insulation, and is set to bring about a series of advantages and applications in the power grid sector.
The newly developed Extension Link Insulators are designed with a combination of a silicon - coated core rod and various end fittings. Each insulator has passed a rigorous mechanical proof test of at least 45kN (10,000 lbs), ensuring high - level durability and reliability.
These insulators come with a range of remarkable performance benefits. They significantly enhance the reliability of power systems by minimizing outages and disruptions caused by factors like vandalism, pole fires, and flashovers in different environments. Their compatibility with existing equipment greatly reduces or even eliminates the need for regular maintenance, such as cleaning and troubleshooting. Moreover, they improve power quality by reducing Radio Interference (RI) and Television Interference (TVI), and increase energy efficiency due to lower leakage currents. The lightweight design ensures safe handling and installation, and their consistent performance throughout the lifespan leads to reduced life - cycle costs compared to traditional porcelain insulators.
In terms of applications, the Extension Link Insulators are designed to be used in series with dead - end insulators. They are mainly applied to overhead lines with an operating voltage of 69 kV or below, providing enhanced insulation. They are particularly suitable for dead - end scenarios such as line terminations, angles, and tangents, effectively supporting line conductors. Additionally, they can be used to obtain more working and electrical clearances, or to move the conductor attachment points away from the structure.
One of the highlights of these insulators is the adoption of the post - crimping process. In this process, the silicone rubber sheath is first vulcanized onto the core rod, and then the end metal fittings are crimped onto both ends of the core rod. This process, widely used in developed regions like Europe and North America, comes with its own set of technical challenges. Precise control over vulcanization parameters such as temperature, time, and pressure is crucial to ensure a uniform and tight bond between the silicone rubber sheath and the core rod, preventing issues like bubbles and delamination. When crimping the end fittings, the force must be carefully calibrated. Insufficient force may result in loose connections, while excessive force could damage the core rod, affecting the overall mechanical properties of the insulator.
However, the advantages of the post - crimping process are substantial. The tight combination of the silicone rubber sheath and the core rod effectively prevents the intrusion of moisture and impurities, significantly enhancing the insulator's insulation performance and weather resistance, thus extending its service life. The firmly crimped end fittings ensure the stability and reliability of the insulator under various mechanical stresses, enabling it to function properly in complex power environments.
JD - Electric has mastered a wide range of product - related technologies and processes. This expertise, combined with the successful development of the Extension Link Insulators, positions the company to better meet the diverse needs of global customers. As a result, JD - Electric is expected to further strengthen its market position and contribute to the advancement of electrical insulation technology on a global scale.
