JPS54153042A - Duct type cable and method of using it - Google Patents
Duct type cable and method of using itInfo
- Publication number
- JPS54153042A JPS54153042A JP6147878A JP6147878A JPS54153042A JP S54153042 A JPS54153042 A JP S54153042A JP 6147878 A JP6147878 A JP 6147878A JP 6147878 A JP6147878 A JP 6147878A JP S54153042 A JPS54153042 A JP S54153042A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- optical fibers
- laying
- repair
- curvature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Communication Cables (AREA)
Abstract
PURPOSE: To make laying and repair of optical fibers easy by specifying the length of the cable comprising inserting optical fibers in the segments sectioned to a plurality within the cross section the friction coefficients between the optical fibers and the segment wall faces, the mean radius of curvature of the cable after laying to the specific conditions.
CONSTITUTION: When the radius of curvature in the sense that the twist pitches of optical fiers 3 or linear form 4 and the bends which a duct type cable receive after laying are combined is let to be R, the friction coefficient between the inside surface of a hollow pipe 1 and the optical fibers to be μ, and the cable length to be S, these are so set as to satisfy μS/R<8. Since this makes possible the movement of the optical fibers in the duct in the cable after laying of the cable, laying and repair of the novel optical fibers may be readily perfomred.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6147878A JPS54153042A (en) | 1978-05-22 | 1978-05-22 | Duct type cable and method of using it |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6147878A JPS54153042A (en) | 1978-05-22 | 1978-05-22 | Duct type cable and method of using it |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54153042A true JPS54153042A (en) | 1979-12-01 |
Family
ID=13172207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6147878A Pending JPS54153042A (en) | 1978-05-22 | 1978-05-22 | Duct type cable and method of using it |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54153042A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63124005A (en) * | 1986-11-13 | 1988-05-27 | Sumitomo Electric Ind Ltd | Method of forced-feeding and inserting-through for laying optical fiber cable in duct line |
JPH05249321A (en) * | 1982-11-08 | 1993-09-28 | British Telecommun Plc <Bt> | Method for insertion of optical fiber |
-
1978
- 1978-05-22 JP JP6147878A patent/JPS54153042A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05249321A (en) * | 1982-11-08 | 1993-09-28 | British Telecommun Plc <Bt> | Method for insertion of optical fiber |
JPS63124005A (en) * | 1986-11-13 | 1988-05-27 | Sumitomo Electric Ind Ltd | Method of forced-feeding and inserting-through for laying optical fiber cable in duct line |
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