JPS5639504A - Fiber unit for optical submarine cable - Google Patents

Fiber unit for optical submarine cable

Info

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
Application number
JP11421979A
Other languages
Japanese (ja)
Inventor
Fujio Tanaka
Chuichi Oota
Tetsusaburo Kamibayashi
Yoshihisa Komazawa
Hidenori Mimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KDDI Corp
Original Assignee
Kokusai Denshin Denwa KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kokusai Denshin Denwa KK filed Critical Kokusai Denshin Denwa KK
Priority to JP11421979A priority Critical patent/JPS5639504A/en
Publication of JPS5639504A publication Critical patent/JPS5639504A/en
Pending legal-status Critical Current

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
JP11421979A 1979-09-07 1979-09-07 Fiber unit for optical submarine cable Pending JPS5639504A (en)

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)

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