JPS5756805A - Optical cable - Google Patents

Optical cable

Info

Publication number
JPS5756805A
JPS5756805A JP55132520A JP13252080A JPS5756805A JP S5756805 A JPS5756805 A JP S5756805A JP 55132520 A JP55132520 A JP 55132520A JP 13252080 A JP13252080 A JP 13252080A JP S5756805 A JPS5756805 A JP S5756805A
Authority
JP
Japan
Prior art keywords
sheath
optical
optical cable
lot
providing
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.)
Granted
Application number
JP55132520A
Other languages
Japanese (ja)
Other versions
JPS6059568B2 (en
Inventor
Chihaya Tanaka
Yasuyuki Sugawara
Toshiaki Kobayashi
Masao Tanaka
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.)
Fujikura Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujikura Ltd
Nippon Telegraph and Telephone Corp
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 Fujikura Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujikura Ltd
Priority to JP55132520A priority Critical patent/JPS6059568B2/en
Publication of JPS5756805A publication Critical patent/JPS5756805A/en
Publication of JPS6059568B2 publication Critical patent/JPS6059568B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/441—Optical cables built up from sub-bundles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/44386—Freeze-prevention means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Insulated Conductors (AREA)

Abstract

PURPOSE:To prevent the influence of an optical loss, etc., which is caused by freezing of residual water in the conduit line, by providing a lot of closed hollow parts in the sheath of an optical cable. CONSTITUTION:An optical cable 20 is formed by placing a 6-core optical unit provided with 6 optical fiber cable conductors, and a tracer quad 24 in the circumference of a tension member 21, and providing a push-wind tape 25 and a sheath 27 to their outside circumference. The sheath consits of polyethylene, etc., and has a lot of closed hollow parts 27a in its inside. The hollow part 27 a is formed intermittently in both the circumferential direction and the lengthwise direction. The sheath 27 is prepared by use of a die having a shape as shown in the figure, by the extrusion converting method.
JP55132520A 1980-09-24 1980-09-24 optical cable Expired JPS6059568B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55132520A JPS6059568B2 (en) 1980-09-24 1980-09-24 optical cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55132520A JPS6059568B2 (en) 1980-09-24 1980-09-24 optical cable

Publications (2)

Publication Number Publication Date
JPS5756805A true JPS5756805A (en) 1982-04-05
JPS6059568B2 JPS6059568B2 (en) 1985-12-25

Family

ID=15083230

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55132520A Expired JPS6059568B2 (en) 1980-09-24 1980-09-24 optical cable

Country Status (1)

Country Link
JP (1) JPS6059568B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532342A1 (en) * 1982-09-01 1984-03-02 Cable Belt Ltd
US4745238A (en) * 1984-12-22 1988-05-17 Kabelwerke Reinshagen Gmbh Floatable flexible electric and/or optical line
JPH04116315U (en) * 1991-03-27 1992-10-16 日立電線株式会社 Cable installed in conduit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532342A1 (en) * 1982-09-01 1984-03-02 Cable Belt Ltd
US4745238A (en) * 1984-12-22 1988-05-17 Kabelwerke Reinshagen Gmbh Floatable flexible electric and/or optical line
JPH04116315U (en) * 1991-03-27 1992-10-16 日立電線株式会社 Cable installed in conduit

Also Published As

Publication number Publication date
JPS6059568B2 (en) 1985-12-25

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