JPS5461685A - Flame-retardant wire - Google Patents

Flame-retardant wire

Info

Publication number
JPS5461685A
JPS5461685A JP12848277A JP12848277A JPS5461685A JP S5461685 A JPS5461685 A JP S5461685A JP 12848277 A JP12848277 A JP 12848277A JP 12848277 A JP12848277 A JP 12848277A JP S5461685 A JPS5461685 A JP S5461685A
Authority
JP
Japan
Prior art keywords
flame
retardant
filler
insulation layer
fire
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
JP12848277A
Other languages
Japanese (ja)
Inventor
Hideki Yagyu
Kunio Kimura
Koichi Sakai
Tsutomu Matsumoto
Hiroshi Sasaki
Kazuo Tadokoro
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP12848277A priority Critical patent/JPS5461685A/en
Publication of JPS5461685A publication Critical patent/JPS5461685A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To eliminate the deterioration of flame-retardant insulation layer under high temperature ambience due to the fire, by adding inorganic powder mainly composed of magnesium hydroxide to ethylene propylene copolymer and providing intermediate layer of the compound.
CONSTITUTION: Filler 4 is placed between flame-retardant insulated cores 10 composed of the conductor 1 applied with polyethylene insulation coating through specific flame-retardant insulation layer 2. Said filler 4 is made of the compound where 25 wt% of magnesium hydroxide which dehydrates when burning to slow the temperature rise and to solidify properly is added to 100 wt% of ethylene propylene copolymer having excellent heat-resistance and insulation and easily extrusion coated. PVC protective coating 5 is extruded over said filler 4. With such structure deterioration of flame-retardant insulation layer due to high temperature of fire can be eliminated.
COPYRIGHT: (C)1979,JPO&Japio
JP12848277A 1977-10-26 1977-10-26 Flame-retardant wire Pending JPS5461685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12848277A JPS5461685A (en) 1977-10-26 1977-10-26 Flame-retardant wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12848277A JPS5461685A (en) 1977-10-26 1977-10-26 Flame-retardant wire

Publications (1)

Publication Number Publication Date
JPS5461685A true JPS5461685A (en) 1979-05-18

Family

ID=14985824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12848277A Pending JPS5461685A (en) 1977-10-26 1977-10-26 Flame-retardant wire

Country Status (1)

Country Link
JP (1) JPS5461685A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55142815U (en) * 1979-03-31 1980-10-13
JPS5961415U (en) * 1982-10-18 1984-04-21 矢崎総業株式会社 fireproof wire
JPS6038426U (en) * 1983-08-24 1985-03-16 古河電気工業株式会社 Fireproof cable for ships

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523178A (en) * 1975-06-27 1977-01-11 Sumitomo Electric Ind Ltd Fire-resistant electric wires

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523178A (en) * 1975-06-27 1977-01-11 Sumitomo Electric Ind Ltd Fire-resistant electric wires

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55142815U (en) * 1979-03-31 1980-10-13
JPS5961415U (en) * 1982-10-18 1984-04-21 矢崎総業株式会社 fireproof wire
JPS6038426U (en) * 1983-08-24 1985-03-16 古河電気工業株式会社 Fireproof cable for ships

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