JPS5639504A - Fiber unit for optical submarine cable - Google Patents
Fiber unit for optical submarine cableInfo
- Publication number
- JPS5639504A JPS5639504A JP11421979A JP11421979A JPS5639504A JP S5639504 A JPS5639504 A JP S5639504A JP 11421979 A JP11421979 A JP 11421979A JP 11421979 A JP11421979 A JP 11421979A JP S5639504 A JPS5639504 A JP S5639504A
- Authority
- JP
- Japan
- Prior art keywords
- resin layer
- submarine cable
- fiber unit
- funnel
- sheath
- 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
- Insulated Conductors (AREA)
Abstract
PURPOSE: To eliminate penetration of sea water into optical fibers and minimize the effect of cable rupture even if it occurs by disposing a funnel-shaped water penetration preventing valve.
CONSTITUTION: A plurality of optical fiber strands 2 are buried in a synthetic resin layer 3, and a sheath 14 such as nylon is coated on said resin layer. A funnel-shaped water penetration preventing valve 13 comprising synthetic resin material is disposed between said resin layer 3 and sheath 14. Materials which have adhesiveness to the material of the layer 3, withstand high water pressure and are of good workability, such as, for example, nylon and urethane, are used for the material of said valve 13.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11421979A JPS5639504A (en) | 1979-09-07 | 1979-09-07 | Fiber unit for optical submarine cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11421979A JPS5639504A (en) | 1979-09-07 | 1979-09-07 | Fiber unit for optical submarine cable |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5639504A true JPS5639504A (en) | 1981-04-15 |
Family
ID=14632198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11421979A Pending JPS5639504A (en) | 1979-09-07 | 1979-09-07 | Fiber unit for optical submarine cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5639504A (en) |
-
1979
- 1979-09-07 JP JP11421979A patent/JPS5639504A/en active Pending
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