| 摘要 |
<p>PURPOSE:To increase the number of wires to be passed by passing cooling gas through duct provided as wire-housing duct inside the through portion for wire. CONSTITUTION:The penetration 9 is fastened to the sleeve 2 buried in the wall 1, and wire-housing duct 10 is welded to the selaing material holding plate 13 by passing through the partition plate 14 attached to the penetration 9. The wire 6 is made into strand at the inside sealing material portion 12 before injecting sealing material and then the space between the strands is also sealed integrally by injection of sealing material. And, the void 16 is provided as a monitor for the goodness of the outside sealing material 11 and the concrete 7 serving as shield is filled prior to the fixation of the end plate 3. The outside sealing material 11 and the inside sealing material 12 are injected through the charging hole. The cooling agent comes in through the inlet pipe 23 and cools the penetration 9. And, the wire 6 is cooled by cooling gas coming into the path 15 from the cooling hole 19 formed at one end of the penetration 9.</p> |
