JPS55100509A - Fire-retardant optical cable - Google Patents
Fire-retardant optical cableInfo
- Publication number
- JPS55100509A JPS55100509A JP757679A JP757679A JPS55100509A JP S55100509 A JPS55100509 A JP S55100509A JP 757679 A JP757679 A JP 757679A JP 757679 A JP757679 A JP 757679A JP S55100509 A JPS55100509 A JP S55100509A
- Authority
- JP
- Japan
- Prior art keywords
- fire
- cable
- optical
- retardant plastic
- optical cable
- 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
- 239000003063 flame retardant Substances 0.000 title abstract 4
- 230000003287 optical effect Effects 0.000 title abstract 4
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
Landscapes
- Insulated Conductors (AREA)
Abstract
PURPOSE: To provide the cable which is safely protected even at extremely high temperatures and fire by disposing a cylindrical metal sheath to the inside of the fire-retardant plastic sheath of the optical cable core.
CONSTITUTION: Optical fiber cores 6 are aggregated in laminar form by way of intervening cords or copper clad wires 5 for communication on the tension body 4 placed at the center of the cable and further top-winding tapes 7 are applied thereon to constitute the optical cable core. Since a fire-retardant plastic sheath 9 and a cylindrical metal sheath 8 on the inside surface thereof are disposed, the heat and atmosphere upon the optical calbe may be cut off despite the elevation of ambient temperature and even if fire comes over the cable, the cable does not burn because it has the fire-retardant plastic sheath 9.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP757679A JPS55100509A (en) | 1979-01-25 | 1979-01-25 | Fire-retardant optical cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP757679A JPS55100509A (en) | 1979-01-25 | 1979-01-25 | Fire-retardant optical cable |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55100509A true JPS55100509A (en) | 1980-07-31 |
Family
ID=11669627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP757679A Pending JPS55100509A (en) | 1979-01-25 | 1979-01-25 | Fire-retardant optical cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55100509A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0158433A2 (en) * | 1984-03-22 | 1985-10-16 | Alcatel N.V. | Fibre optic cables |
JPS61124005U (en) * | 1985-01-24 | 1986-08-05 | ||
JPS62204215A (en) * | 1986-03-04 | 1987-09-08 | Nippon Telegr & Teleph Corp <Ntt> | Method for designing flame retardant cable |
JPS63158513A (en) * | 1987-12-10 | 1988-07-01 | Hitachi Cable Ltd | Running water preventive type optical fiber cable |
JPH0285409U (en) * | 1988-09-30 | 1990-07-04 |
-
1979
- 1979-01-25 JP JP757679A patent/JPS55100509A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0158433A2 (en) * | 1984-03-22 | 1985-10-16 | Alcatel N.V. | Fibre optic cables |
JPS61124005U (en) * | 1985-01-24 | 1986-08-05 | ||
JPS62204215A (en) * | 1986-03-04 | 1987-09-08 | Nippon Telegr & Teleph Corp <Ntt> | Method for designing flame retardant cable |
JPS63158513A (en) * | 1987-12-10 | 1988-07-01 | Hitachi Cable Ltd | Running water preventive type optical fiber cable |
JPH042925B2 (en) * | 1987-12-10 | 1992-01-21 | ||
JPH0285409U (en) * | 1988-09-30 | 1990-07-04 |
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