Glass Insulator

tension insulator In the first few years of production and operation, it was found that it had the following advantages over porcelain insulators:

Due to the high mechanical strength of the surface of the glass insulator, cracks are not easy to occur on the surface. The electrical strength of glass generally remains unchanged during the entire operation period, and its aging process is much slower than that of porcelain. Therefore, glass insulators are mainly scrapped due to self-damage, which occurs within one year of operation, but the defects of porcelain insulators are only discovered after several years of operation.

The use of glass insulators can cancel the regular preventive tests of insulators under power during operation. This is because every damage to tempered glass will cause damage to the insulator, and it is easy for operators to find it when patrolling the line. When the insulator is damaged, the glass fragments near the steel cap and the iron foot are stuck, and the mechanical strength of the remaining part of the insulator is sufficient to prevent the insulator string from breaking off. The self-breakage rate of glass insulators is one of the important indicators for measuring product quality, and it is also the quality basis for evaluating bids during the current transmission project bidding and bidding.