| 摘要 |
<p>PURPOSE:To provide an electrically and mechanically highly reliable laying method by removing occurrence of nonuniformity in the radius of a circular arc, which constitutes the shape of a line in laying, or a small partial bend, in the snake laying method for a power cable in a trough or a pit. CONSTITUTION:For the shape of the zigzag in the method of laying a power cable zigzag in a curved route, circular arcs AC, which inscribe the outside periphery of the width of laying, and circular arcs CE, which circumscribe the inside periphery of the width of laying, are constituted continuously, and the radius Rc of each circular arc is the same, and the length of the circular arc AC inscribing the outside periphery of the width of laying is longer than that of the chord of the circular arc CE circumscribing the inside periphery of the width of laying, and besides at the junction between each circular arc, both circular arcs AC and CE contact with each other.</p> |
