| 摘要 |
<p>The device has a main and an auxiliary contact lines (4-7) that are arranged in corresponding sections of tracks (1,2). The ends of contact lines in transition region are connected with spring elements (28,29) for stretching the contact lines. The spring elements are secured at vertical column for retightening. Vertical columns (24-27) are set on horizontal bracing beams (22,23) by portal frames (16,17) which are secured on contact wire (9,12) of both sections of track. A deflection roller is provided at which contact wire is turned back upward to spring element.</p> |
