But the porcelain insulator material characteristics determine its aging along with the increasing length of run continuously, greatly increase the detection work of maintenance department, and complex manufacturing more umbrella umbrella porcelain insulator glass insulator.So many umbrella glass insulator have very good market prospect.In recent years, with the progress of the development of electric power construction and transmission technology, increasing capacity and voltage level of the transmission line, especially in UHV engineering in high voltage and large capacity transmission wire demand, voltage grade and the strength grade of insulator puts forward new requirements, need to be used in UHV line 830 (840), thousands of cattle glass insulator products.