JPS5457694A - Cable line - Google Patents
Cable lineInfo
- Publication number
- JPS5457694A JPS5457694A JP12487677A JP12487677A JPS5457694A JP S5457694 A JPS5457694 A JP S5457694A JP 12487677 A JP12487677 A JP 12487677A JP 12487677 A JP12487677 A JP 12487677A JP S5457694 A JPS5457694 A JP S5457694A
- Authority
- JP
- Japan
- Prior art keywords
- sheets
- small holes
- thermal resistant
- drilled
- heat curing
- 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
Links
Landscapes
- Details Of Indoor Wiring (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
PURPOSE: To prevent spread of fire of line without big drop of allowable current, by covering the outside of a cable laid on a shelf with heat curing type sheet on which many small holes are drilled.
CONSTITUTION: The outsides of cables 3, 3' which are laid on shelves 2, 2' in a hollow path 1 or a duct are intermittently covered with heat curing type thermal resistant sheets 4, 4' on which many small holes 5, 5', 5" are drilled or with sheets that foamed thermal resistant paint is painted on one side face or both faces of those sheets. As above-mentioned thermal resistant sheets 4, 4', products that material which is flame retarder in usual time shows putty state and is cured and strengthened by heating is made to be sheet state of about 3-5mm thickness, or complexed sheets that aluminum foil or the like is papered on the product are used. It is preferable that small holes for ventilating 5, 5', 5" have the diameters of about 3-7mm, intervals of pitches are about 25-50mm, and hole ratio is about 3-6%
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12487677A JPS5457694A (en) | 1977-10-18 | 1977-10-18 | Cable line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12487677A JPS5457694A (en) | 1977-10-18 | 1977-10-18 | Cable line |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5457694A true JPS5457694A (en) | 1979-05-09 |
JPS5539976B2 JPS5539976B2 (en) | 1980-10-15 |
Family
ID=14896272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12487677A Granted JPS5457694A (en) | 1977-10-18 | 1977-10-18 | Cable line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5457694A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61199412A (en) * | 1985-02-28 | 1986-09-03 | 日本電信電話株式会社 | Extended fire prevention of cable and fire tight cover |
JP2016042769A (en) * | 2014-08-19 | 2016-03-31 | 三菱電機株式会社 | Bus duct device |
-
1977
- 1977-10-18 JP JP12487677A patent/JPS5457694A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61199412A (en) * | 1985-02-28 | 1986-09-03 | 日本電信電話株式会社 | Extended fire prevention of cable and fire tight cover |
JP2016042769A (en) * | 2014-08-19 | 2016-03-31 | 三菱電機株式会社 | Bus duct device |
Also Published As
Publication number | Publication date |
---|---|
JPS5539976B2 (en) | 1980-10-15 |
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