U120G/146 Anti pollution Glass Insulators for Overhead Power Transmission Transformers, National Standard Quality

Description :

　　U120G/146 Anti pollution Glass Insulators for Overhead Power Transmission Transformers, National Standard Quality

　　Characteristics of glass insulators:

　　(1) High mechanical strength, 1% higher than that of ceramic insulators? Twice.

　　(2) Stable performance, not prone to aging, and higher electrical performance than ceramic insulators.

　　(3) The production process is few, the production cycle is short, it is convenient for mechanization and automation production, and the production efficiency is high.

　　(4) Due to the transparency of glass insulators, it is easy to see small cracks and various internal defects or damages during external inspection.

　　(5) If the glass body of the insulator has various defects, the glass body will automatically break, which is called "self breakage". After the insulator breaks, the residual hammer of the iron cap still maintains a certain mechanical strength and hangs on the line, and the line can still continue to operate.

　　(6) When the line patrol personnel inspect the line, it is common to see self broken insulators and replace them with new ones in a timely manner.

　　(7) Due to the "self rupture" characteristic of glass insulators, there is no need to conduct preventive tests on the insulators.

　　(8) The quality of glass insulators is small.

　　 Glass insulator: A device used to support and insulate wires is called an insulator. The insulator device is made of glass and is called a glass insulator; The most widely used in power lines currently is tempered glass insulators.

　　 Insulators are generally made of glass and porcelain. It is mainly used to fix wires to electrical poles and insulate wires from electrical poles. Insulators are one of the key components of high-voltage transmission lines, and their performance directly affects the operational safety of the entire transmission line. Glass insulators are widely used due to their zero value self breaking and easy maintenance characteristics.

　　 Tempered glass bead (English name: Tempered glass bead), tempered glass insulator products are used for high voltage and ultra-high voltage ACDC transmission lineUsed for insulation and suspension wires. In the early years, tempered glass insulators were mostly used for utility poles, but gradually developed into many disc-shaped insulators hung at one end of high voltage power line connection towers to increase the creepage distance. They are usually made of glass or ceramic and are called insulators.

　　 Tempered glass insulators have the characteristic of zero value self rupture. As long as it is observed on the ground or in a helicopter, there is no need to climb the pole and inspect each piece, which reduces the labor intensity of workers.

　　The products introduced into the production line have an annual self breakage rate of 0.02-0.04%, which can save maintenance costs on the circuit. Good resistance to arc and vibrationThe new surface of the glass insulator that suffered lightning burns during operation is still a smooth glass body with a tempered internal stress protection layer, so it still maintains sufficient insulation and mechanical strength.There have been multiple incidents of conductor icing induced vibration on 500kV transmission lines. After testing, the mechanical and electrical performance of the glass insulators affected by conductor vibration did not deteriorate.Good self-cleaning performance and resistance to aging According to the general feedback from the power department, glass insulators are not easy to accumulate dirt and are easy to clean. The glass insulators used in the southern transmission lines are washed clean after rain.

　　Regular sampling and testing of the mechanical and electrical performance of glass insulators on typical regional power lines after operation. Accumulating thousands of data shows that the mechanical and electrical performance of glass insulators after 35 years of operation is basically the same as that at the time of factory delivery, and there is no aging phenomenon.

　　U120G/146 Anti pollution Glass Insulators for Overhead Power Transmission Transformers, National Standard Quality

　　Transportation and precautions:

　　 (1) Composite insulators should have good moisture-proof, anti vibration, anti rust, anti-theft and other protective measures to ensure the safe delivery of composite insulators to the site without damage due to the above reasons.

　　(2) Composite insulators with voltage levels of 330kV and above should be packaged in appropriately sized, rainproof, and rodent proof cylinders, and the end caps at both ends should be firm and reliable.

　　(3) The packaging of composite insulators should have sufficient strength to withstand handling during transportation, on-site storage, and installation.

　　(4) Suitable buffering measures should be installed inside the packaging tube to prevent damage or deformation during transportation and handling. All these materials should have chemical stability and waterproofness, and should not adhere to composite insulators or corrode them during outdoor storage.

　　(5) To ensure the safe arrival of goods at their destination, all packaging boxes should have correct, clear, and secure markings.

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