| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical fiber cord capable of preventing force from applying onto optical fibers. SOLUTION: The optical fiber cord 2 has two lines of optical fibers 8 and a high-tension wire 19 which is arranged between these optical fibers 8. The optical fiber 8 is covered with a first covering part 20 by being closely adhered to it. A second covering part 21 consists of optical fiber parts 21a each of which covers the optical fiber 8 and the first covering part 20 and a connecting part 21b which covers the high-tension wire 19. The thickness D4 of the connecting part 21b is made thicker than the thickness D3 of the optical fiber part 21a. When the optical fiber cord 2 is passed through the inside of piping, force is applied to the connecting part 21b and large force is not applied to the optical fiber parts 21a. Thus, the optical fibers 8 are never deformed, and the lowering of communication characteristics can be prevented. COPYRIGHT: (C)2006,JPO&NCIPI
|
