| 摘要 |
<p>PURPOSE:To prevent iron towers from being inclined and electric wires from being damaged, by lifting up wires to be extended with a specified tension and by fitting split wires on metallic wheels to extend the wires, after wire extending is completed in collective extension wires connected with split wires. CONSTITUTION:After wire extending is collectively completed, the tension of approx. 80% of a stretched wire tension is loaded on all of extended wires and the extended wires are temporarily lifted up. The lengths of split wires 1 are corrected so that the split wires 1 may be mounted on metallic wheels 2 just in good order in the temporarily lifted-up state, and the split wires 1 are manufactured to the corrected lengths and are connected to electric wires 20. The electric wires 20 are previously measured and cutting-processed to lengths the wires of which are erected with a desired relaxing degree when the wires 20 are finally connected to the tips of iron tower arms in place with insulator strings and connecting metal fittings or the like.</p> |
