接触网(国外英文资料).doc

接触网(国外英文资料) Catenary The electrification of Railways is the ultimate goal of Chinas railway development. The electrified railway project is also called four electrical engineering, including catenary, substation, signal and communication, among which the catenary is the main frame of the railway electrification project. Contact network mainly includes the following contents: 1. basic components, such as cement, steel columns and pillars to support the structure of the foundation; 2. basic installation structure, the contents of the main role is to connect the contact wire and the base member; 3. contact wire, this part is the transmission current to the electric locomotive; 4. other auxiliary components, including the return line, additional suspension. The erection process of the catenary wire in construction is shown in the drawing. A contact network is a special type of transmission line that is put up along the railway line to supply power to the electric locomotive. It consists of contact, suspension, support device, positioning device, support and foundation. Contact suspension includes contact wire, suspension string, catenary and connecting parts. Contact suspension is supported on a support by means of a support device, which is used to deliver power from traction substations to electric locomotives. The A support device that supports contact, suspension, and transmission of loads to a pillar or other building. It varies according to the location of the catenary, the station yard and the large building. Support devices include the wrist arm, horizontal bar, suspension insulator string, rod insulator and other building special support equipment. The positioning device comprises a positioning tube and positioner, its function is the fixed position of the contact line, the contact line of pantograph slide in orbit range, ensure contact wire and pantograph not out, the level of load and the contact line will pass to the pillar. Pillars and foundations are used