Insulators should have sufficient insulation strength and mechanical strength. They should not only withstand the effects of working voltage and overvoltage during operation, but also have sufficient resistance to the erosion of chemical impurities, and can adapt to changes in temperature and the influence of the surrounding environment. Composite pin insulators have high bending resistance, impact resistance, shock resistance and superior explosion-proof performance. Besides, composite pin insulators have reliable internal insulation and light weight, making them an ideal replacement product for traditional toughened glass insulators.

In the past, the main options for support insulators at air-insulated HVAC substations were either solid core porcelain or composite insulators up to 245 kV. In addition, RTV coatings have at times been applied to solid core porcelain post insulators to improve their pollution performance.

Test stations have been acknowledged as an important tool for evaluating insulator performance under different service environments. Typically, these stations are sited in areas having severe pollution problems and therefore allow accelerated accumulation of contamination.

Drop-out fuse is the most commonly used short-circuit protection switch for branch lines and distribution transformers of 10kV distribution lines. It has the characteristics of the economy, convenient operation, and strong adaptability to the outdoor environment. Drop-out fuse is widely used in 10kV distribution lines and distribution. The primary side of the transformer is used for protection and equipment switching and switching operations. Next, I will introduce to you the working principle, function, and use environment of the drop-out fuse. Here are some answers.

The 400 kV Gutinas-Brasov overhead line is located in a mountainous area of Romania that has mostly rocky soil. Thick ice covers conductors during winter and in the past caused breakage of shield wire such that it had to be dismantled in the most severely affected sections.

South Bohemia abounds with wonders, including medieval towns with cobblestone streets and fairy tale castles. But what is truly unique in this pastoral region of the Czech Republic has nothing to do with baroque villages.