This article reviews the development of various organic insulated bus（tubular insulated bus） in China

including their advantages & shortcomings

and their contributions and problems. These problems reflect outstanding in: tubular insulated bus in the bus and the bus connector. Due to the electric field distribution is very poor

bus to ground flashover often occurs; some tubular insulated bus and switch equipment

arrester electrical interface

because of the electric field concentration

corona often occurs and further to flashover

or due to the lack of effective insulation size design

manufacture and assembly quality is not good and bus discharge to the ground

to the operation unit caused by power loss. This paper analyzes the cause of the accident

also put forward the improvement and improved suggestion. In our country

during the difficult development process of varieties of organic insulated bus

the author also sees the hope: the development prospects for a new type of capacitive compositely insulated bus. The bus is connected with the bus

the bus and other electric apparatus

and the design of multiple capacitor shields are adopted

the electric field distribution is uniform

and the insulation of the interface is reliable. In this paper

the characteristics of the material

manufacturing process and quality control and other aspects of the bus insulation reliability and control of the unique experience of partial discharge.Partial discharge is a tubular insulated bus lifeline long-term safe operation

which controls the tubular insulating bus PD characteristic

grasps the insulated tube bus to the direction of high/ultra high voltage.