JPS5457694A - Cable line - Google Patents

Cable line

Info

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
Application number
JP12487677A
Other languages
Japanese (ja)
Other versions
JPS5539976B2 (en
Inventor
Yoshinari Hane
Toshio Nomura
Hiroshi Suzuki
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric Co 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP12487677A priority Critical patent/JPS5457694A/en
Publication of JPS5457694A publication Critical patent/JPS5457694A/en
Publication of JPS5539976B2 publication Critical patent/JPS5539976B2/ja
Granted legal-status Critical Current

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
JP12487677A 1977-10-18 1977-10-18 Cable line Granted JPS5457694A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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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