Tempered glass insulators are usually made of glass materials. The product itself is composed of iron caps, tempered glass parts, and steel feet, which are glued together by cement adhesive. Glass insulators have good electrical characteristics. Spark tests are usually carried out in the factory test. Frequent sparks occur on the insulating surface by applying high voltage and maintain for a certain period of time to see if they are broken down. The spark test can ensure that the breakdown voltage of the insulator is higher than the flashover voltage.

Compared with ceramic insulators, glass insulators have good mechanical strength. If a glass insulator is burnt by lightning during operation, on the one hand, the new surface of the glass insulator is still a smooth glass body; on the other hand, the glass insulator has a toughened internal stress protection layer, which can Let the glass insulator continue to maintain sufficient insulation performance and mechanical strength. Click here to view more！

The anti-aging performance of glass insulators is also very good. Since the dielectric constant of glass materials is between 7 and 8, tempered glass insulators have the characteristics of large main capacitance and evenly distributed voltage in series. The advantages of tempered glass insulators are conducive to reducing the voltage borne by the insulator attachment area and are also conducive to reducing radio interference and corona loss, thereby effectively extending the life of the glass insulators. In addition, due to the transparency of the glass material, it is easier to find small cracks and various internal defects and damages during the shape inspection of glass insulators.

Neoinsulator: As a professional insulator manufacturer and trader from China, we provide various types of high-quality insulators. Our areas of product expertise include porcelain, glass, and polymer insulators, bushings for capacitors, technical ceramics, lightning arresters, disconnectors, and much more.