JPS56114902A - Optical fiber cable resistive to spread of fire - Google Patents

Optical fiber cable resistive to spread of fire

Info

Publication number
JPS56114902A
JPS56114902A JP1714480A JP1714480A JPS56114902A JP S56114902 A JPS56114902 A JP S56114902A JP 1714480 A JP1714480 A JP 1714480A JP 1714480 A JP1714480 A JP 1714480A JP S56114902 A JPS56114902 A JP S56114902A
Authority
JP
Japan
Prior art keywords
sheath
spread
optical fiber
fire
inclusion
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
JP1714480A
Other languages
Japanese (ja)
Inventor
Tadao Koyama
Yutaka Katsuyama
Yoshikazu Murata
Kiichi Nojiri
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.)
Sumitomo Electric Industries Ltd
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
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 Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP1714480A priority Critical patent/JPS56114902A/en
Publication of JPS56114902A publication Critical patent/JPS56114902A/en
Pending 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
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/4436—Heat resistant
    • 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
    • G02B6/4415—Cables for special applications

Landscapes

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

Abstract

PURPOSE:To prevent the spread of a fire due to a cable in case of a fire, by using flame-resisting vinyl, having a specific oxygen index corresponding to an inclusion material, for the sheath of the cable. CONSTITUTION:Of the optical fiber cable consisting of optical fiber core 1, tension member 2, spacer 3, inclusion 4, upper layer 5, and sheath 6, inclusion 4 uses a thermoplastic material. In this case, sheath 6 is coated with vinyl of >=33 in oxidation index. If paper, jute or a material of >=25 in oxygen index is used as inclusion 4, sheath 6 is coated with vinyl of >=30 in oxygen index. Thus, using vinyl of high flame resistance for the sheath minimizes the spread of a fire due to the cable.
JP1714480A 1980-02-14 1980-02-14 Optical fiber cable resistive to spread of fire Pending JPS56114902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1714480A JPS56114902A (en) 1980-02-14 1980-02-14 Optical fiber cable resistive to spread of fire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1714480A JPS56114902A (en) 1980-02-14 1980-02-14 Optical fiber cable resistive to spread of fire

Publications (1)

Publication Number Publication Date
JPS56114902A true JPS56114902A (en) 1981-09-09

Family

ID=11935795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1714480A Pending JPS56114902A (en) 1980-02-14 1980-02-14 Optical fiber cable resistive to spread of fire

Country Status (1)

Country Link
JP (1) JPS56114902A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447122A (en) * 1981-07-23 1984-05-08 International Standard Electric Corporation Plastic sheathed cables
US4575184A (en) * 1983-06-06 1986-03-11 Sumitomo Electric Industries, Ltd. Flame retardant optical composite cable
JPS62204215A (en) * 1986-03-04 1987-09-08 Nippon Telegr & Teleph Corp <Ntt> Method for designing flame retardant cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447122A (en) * 1981-07-23 1984-05-08 International Standard Electric Corporation Plastic sheathed cables
US4575184A (en) * 1983-06-06 1986-03-11 Sumitomo Electric Industries, Ltd. Flame retardant optical composite cable
JPS62204215A (en) * 1986-03-04 1987-09-08 Nippon Telegr & Teleph Corp <Ntt> Method for designing flame retardant cable

Similar Documents

Publication Publication Date Title
GB1529001A (en) Optical conductors for use in optical cables
KR910006742A (en) Flame retardant cable
GB1436605A (en) Glass transmission line
GB1495496A (en) Optical cables
DE59708841D1 (en) BENDING LIGHT GUIDE WITH LIQUID CORE
IT7927769A0 (en) MIXED ACRYLIC FIBERS WITH DOUBLE CONSTITUENT.
ES8402113A1 (en) &#34;A CONDUCTIVE CABLE WITH AN IMPROVED PLASTIC LINING&#34;.
IE811809L (en) Gasket material
GB1524316A (en) Optical fibre waveguides
JPS56114902A (en) Optical fiber cable resistive to spread of fire
KR890005543A (en) Substrate for plastic optical fiber and plastic optical fiber using same
JPS52110802A (en) Wooddcopolymer composite
ATE2235T1 (en) FIRE-RESISTANT COMPOSITE PANEL.
JPS54104847A (en) Reinforcesd glass fiber for optical transmission
SE7909588L (en) A flame retardant composition
JPS52121339A (en) Optical fiber cable
JPS54120734A (en) Heat-fusible fibers
JPS5441745A (en) Optical fiber cable
DE59705143D1 (en) Optical cable with reinforcement and use of the same
JPS5485279A (en) Heat shrinkable tubing
JPS6484205A (en) Plastic optical fiber cord
JPS5790601A (en) Fiber unit for optical submarine cable
JPS5483845A (en) Optical fiber assembly
AU535465B2 (en) Sealing fibre webs with vinyl polymers
JPS5415759A (en) Optical transmission fiber