The steel inserts are molded in to become a single piece with the polymer.
Bus socket insulators handle 10,000+ volts of electricity acting as giant switchboards in power sub stations.
The performance polymer used in these recessed cup insulators is non-conductive to prevent arc tracking at high voltage, as well as being immune to virtually any and all weather conditions.
China Array molds a variety of electrical components from small blue-tooth enable medical devices to high amperage back plane connectors for semiconductor testing to the high voltage electrical bus socket insulators shown on this page. The company has a firm understanding of the materials and processes required for successful electrical component manufacturing.