IEC Class U70BL U100BL Suspension Insulator 6KV 11KV 33KV Toughened Disc Glass Insulator with Spacing 146mm Strain Insulator for Transmission Lines

In the first few years of production and operation, glass insulators were found to have the following advantages over porcelain insulators:
1.Due to the high mechanical strength of the surface layer of glass insulators, the surface is not prone to cracks. The electrical strength of glass generally remains constant throughout the operation period, and its aging process is much slower than that of porcelain, so glass insulators are mainly scrapped due to self-damage, which occurs within the first year of operation, but the defects of porcelain insulators only begin to be discovered after a few years of operation.

2.By using glass insulators, it is possible to cancel the periodic preventive test of live charges carried out by the insulator during operation. This is because every damage to the tempered glass causes the destruction of the insulator, which is easily spotted by the operator when patrolling the line. When the insulator is damaged, the glass shards near the steel cap and iron feet are stuck, and the mechanical strength of the remaining part of the insulator is strong enough to prevent the insulator string from breaking. The self-breaking rate of glass insulator is one of the important indicators to measure product quality, and it is also the quality basis for the evaluation of bids in the

bidding and bidding of current power transmission projects.