JPS5461685A - Flame-retardant wire - Google Patents
Flame-retardant wireInfo
- 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
Links
Landscapes
- Insulated Conductors (AREA)
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS523178A (en) * | 1975-06-27 | 1977-01-11 | Sumitomo Electric Ind Ltd | Fire-resistant electric wires |
-
1977
- 1977-10-26 JP JP12848277A patent/JPS5461685A/en active Pending
Patent Citations (1)
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)
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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