| 摘要 |
<p>PURPOSE:To suppress the increment of the levels of pylons with a large number of circuits, and save a construction cost by arranging stringings at proper positions between the pylons with the common phase of the transmission conductors of a plurality of circuits, to increase the apparent number of phases, and by setting vertical distances between the transmission conductors, to be about 1/2. CONSTITUTION:The respective transmission conductors of two-circuit component are divided into two steps. The transmission conductors C1, C4 of R1, R2 phases are supported at lower positions on both the sides of pylons 1 by insulators 2, in independent states, and then the conductors are set in stringing states. The transmission conductors C25, C36 of S phase and T phase are set to be of a common phase, and are divided into the left and right of the upper positions of the iron towers 1, and are supported by the insulators 2, and are set in the stringing states. Three-phase two-circuits are apparently equal to ones constructed by four phases. Vertical distances between the transmission conductors are set to be about 1/2 comparing with a case provided with no common phase.</p> |
