JPH0487123U - - Google Patents
Info
- Publication number
- JPH0487123U JPH0487123U JP12980290U JP12980290U JPH0487123U JP H0487123 U JPH0487123 U JP H0487123U JP 12980290 U JP12980290 U JP 12980290U JP 12980290 U JP12980290 U JP 12980290U JP H0487123 U JPH0487123 U JP H0487123U
- Authority
- JP
- Japan
- Prior art keywords
- protective layer
- electric wire
- melted
- dotted
- 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
- 239000002184 metal Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000011241 protective layer Substances 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 claims 1
- 230000009970 fire resistant effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000011800 void material Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Description
掲示図面は、本考案の耐火電線の一実施例を示
す横断面図である。 １……配線材、２……金属製内管、３……金属
製外管、４……水密保護層、５……空隙部、６…
…穴。
す横断面図である。 １……配線材、２……金属製内管、３……金属
製外管、４……水密保護層、５……空隙部、６…
…穴。
Claims (1)
- 配線材周上に二重金属製管を設け、この内、外
管の間の空隙部に冷却水等の液体を流通させ、外
管には多数の穴を点在させ、それを覆うように火
災雰囲気下にさらされて溶融可能な水密保護層を
形成してなることを特徴とする耐火電線。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12980290U JPH0487123U (ja) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12980290U JPH0487123U (ja) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0487123U true JPH0487123U (ja) | 1992-07-29 |
Family
ID=31877185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12980290U Pending JPH0487123U (ja) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0487123U (ja) |
-
1990
- 1990-11-30 JP JP12980290U patent/JPH0487123U/ja active Pending
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