公开(公告)号：JPH01134408A

公开(公告)日：1989-05-26

申请号：JP25928588

申请日：1988-10-14

Applicant: COMP GENERALE ELECTRICITE

Inventor： PATORITSUKU DEYUBO ,  DOUNI RUGA ,  REMON BIKU

IPC: G02B6/44

Abstract: PURPOSE: To reduce a weight and section and to make an optical fiber cable usable under a mechanically severe environment by including plurality of parallel metallic reinforcing members parallel with an optical fiber and coating the fiber and the reinforcing members with a coating of a plastic material. CONSTITUTION: The optical fiber has a diameter of 250 microns and is composed of a glass core and a protective coating and is arranged among nine strands 3 taken up on a supporting body 4. The respective strands 3 consist of several tens thousands of basic filaments having a diameter of about 0.5 micron. The bundle composed of the strands 3 and the fiber 2 is passed through one set of combing machine 5 and die 6 so that the tense bundle is obtd. before the bundle enters an electrostatic powder coating device 7. The longitudinal tensile force corresponding to about 50% of the elastic limit of the bundle is kept applied on the bundle to prevent the various constituting members of the bundle 8 from being parted too much from each other within the device 7. The bundle 9 consisting of the plural wires coated with the powder is immediately passed into a furnace 18 and is baked for one minute at a temp. below 250 deg.C. As a result, the cable usable under the mechanically severe conditions is obtd. since the section and weight are small, the easy operation is enabled in spite of the long length.