LEAKAGE COAXIAL CABLE, PLUG FOR CABLE, AND ITS WIRING METHOD

摘要

PURPOSE: To install the leakage cable and an optical fiber integrally by containing a tube to pneumatically send the optical fiber into a hollow part of an inner conductor of the leakage coaxial cable. CONSTITUTION: The leakage coaxial cable 1 is provided with three pneumatic transmission tubes 2 each made of a plastic and a metal or the like and the outer circumference of the tubes is surrounded by a retainer winding sheath 3. An inner conductor 4 is placed around the retainer winding sheath 3 and the conductor 4 is covered by an insulator 5b partitioned via an insulator 5a. The outer circumference of the insulator 5b is covered by a heat resistance tape 6, the outer circumference is covered by an outer conductor 7 and a sheath 8 is provided to the outer circumference. Thus, this means that the pneumatic transmission tubes 2 are accommodated in a hollow part 9 of the inner conductor 4. A messenger wire 11 is provided to the inner and outer conductors. The tubes 2 are used to send pneumatically the optical fiber. For example, an optical fiber is installed over a range of 1km without the need for joint on the way.