The porcelain bus bar insulators are made of insulator body and aluminum inserts fittings.They are usually used to support cooper bus-bar lines and are commonly used in high voltage swithching equipments. Usually for indoor used,so they are also called indoor post insulators.
Our factory supply porcelain bus bar insulators from 5kV to 18kV. There are A20 series and A30 series of them and the ANSI No. for these insulators are as follow: A20-1,A20-2,A20-3,A20-4,A30-1,A30-2,A30-3,A30-4,A30-5,A30-6.
The production of our porcelain bus bar insulator is under matured processes and with precise equipments and experienced workers. Before delivery ,we will do cantilever strength test and all other mechanical tests to ensure that our bus bar insulators is of high quality.
There is no need to care about the maintenace of our porcelain bus bar insulators . The gray glaze on the outer face of the insulator body will keep dirt and pollutant from adhering. The porcelain material our insulator used and the aluminum inserts will save them from high temperature. The aluminum fittings are perfect for support cooper bus bar lines since they won’t corrupt.
Our factory not only manufacture the porcelain insulator body but also the aluminum fittings. All the parameters of our porcelain bus bar insulators are under precise controlled by our own equipment. which will ensure the easy installation of our insulators.