What is tempered glass suspension insulator

1. 1.Purpose

This product is used for insulation and suspension of conductors in high-voltage, ultra-high voltage, and ultra-high voltage AC/DC transmission lines.

2. 
   2.Structure

The product consists of an iron cap, tempered glass parts, and steel feet, and is integrated with cement adhesive. This product adopts the most advanced cylindrical head structure internationally, characterized by small head size, light weight, high strength, and large creepage distance. Can save metal materials and reduce line costs. To meet the needs of live working, traditional domestic structural shapes are used on the brim of the hat.

3. 
   3.Operation

Zero value self-breakage, easy to detect, tempered glass insulators have the characteristic of zero value self-breakage, which can be observed on the ground or helicopter without the need to climb the pole and test each piece, reducing the labor intensity of workers and introducing products from the production line. The annual operating self-rupture rate is 0.02-0.04%, which can save maintenance costs of the line.

The glass insulator has good resistance to arc and vibration, and the new surface of the glass insulator subjected to lightning burns during operation is still a smooth glass body with a tempered internal stress protection layer. Therefore, it still maintains sufficient insulation performance and mechanical strength. There have been multiple incidents of conductor dancing caused by ice on 500kV transmission lines, and the mechanical and electrical performance has not deteriorated after testing the glass insulator after conductor dancing.

Glass insulators have good self-cleaning performance and are not easy to age. According to the general feedback from the power department, glass insulators have good self-cleaning performance and are not easy to age. Glass insulators used in southern power lines are less prone to fouling and are easy to clean after rain. Regular sampling and testing of the mechanical and electrical performance of glass insulators on typical regional power lines after operation have been conducted. Accumulated data from thousands of years shows that the mechanical and electrical performance of glass insulators after 40 years of operation is basically consistent with those before leaving the factory, and there is no aging phenomenon.

4. 
   4.The main capacitance is large, and the voltage distribution in series is uniform.

The dielectric constant of the glass is 7-8, which makes the glass insulator have a large main capacitance and a uniform voltage distribution in series, which is conducive to reducing the voltage borne by the insulators near the wire side and grounding side, thereby reducing radio interference, reducing corona losses, and extending the life cycle of the glass insulator. Practical operation has proven this.

The advantage products of Jiangxi huayao electric Co.,ltd are glass insulators with a capacity of 40kN-550kN, which can meet the requirements of 10kV-500kV ultra-high voltage and extra high voltage transmission and transformation lines.

Huayao strictly comply with GB, ANSI, BS, DIN, AS, IEC standard designs, applicable to power transmission lines and substations.

Huayao has established a production line for ultra-high voltage tempered glass insulators with advanced production technology by introducing world-class production and testing equipment from Germany, Italy, and other countries. It has the ability to produce over 6 million pieces of AC and DC glass insulators annually.