CN201345230Y - Multilayer insulated cable - Google Patents
Multilayer insulated cable Download PDFInfo
- Publication number
- CN201345230Y CN201345230Y CNU2008202114331U CN200820211433U CN201345230Y CN 201345230 Y CN201345230 Y CN 201345230Y CN U2008202114331 U CNU2008202114331 U CN U2008202114331U CN 200820211433 U CN200820211433 U CN 200820211433U CN 201345230 Y CN201345230 Y CN 201345230Y
- Authority
- CN
- China
- Prior art keywords
- insulating layers
- cable
- multilayer insulated
- conductors
- multilayer insulation
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a multilayer insulated cable, which comprises a plurality of multilayer insulated conductors; core conductors are arranged inside the multilayer insulated conductors; the outer side of the core conductors is provided with inner insulating layers; the outer side of the inner insulating layers is provided with middle insulating layers; the outer side of the middle insulating layers is provided with outer insulating layers; the outer side of the multilayer insulated conductors is covered with jackets; and gaps between the jackets and the multilayer insulated conductors are filled by filing materials. The multilayer insulated conductors are closely circulated in the cable, the inner insulating layers are high insulating resistance layers, the middle insulating layers are high thermal shield insulating layers, and the outer insulating layers are high flame-retardant insulating layers. Through double-layer extrusion covering, each performance index of the cable core can meet relevant requirements. The cable core passes the test of vertical combustion of a single insulating core, and simultaneously, the insulating resistance constant and the resistance temperature parameter meet the standard requirements.
Description
Technical field
The utility model relates to a kind of insulated cable.
Background technology
When the used in nuclear power station cable technology requires insulated wire cores to meet in the GB/T12706.1-2002 standard 90 ℃ by GB/T18380.2-2001 single line insulated electric conductor testing vertical flammability and insulation resistance 〉=3.67M Ω km, the temperature of core conductor must be less than 100 ℃, because the resistance of the high more conductor of temperature is high more, can only guarantee that in existing processes or material one of them parameter reaches standard-required, prior art is difficult to described technical parameter is satisfied simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of multilayer insulation cable, satisfies the performance requirement of insulated electric conductor testing vertical flammability, insulation resistance, insulation temperature simultaneously.
The technical solution of the utility model is as follows:
The described cable of multilayer insulation cable includes several multilayer insulation conductors, described multilayer insulation conductor inside is the core conductor, the core conductor is outward an inner insulating layer, the outside of inner insulating layer is middle insulating barrier, in insulating barrier be outward external insulation layer, described several multilayer insulation conductor external packets be wrapped with sheath and between the gap fill with inserts.Described several multilayer insulation conductors closely are looped around in the cable.Described inner insulating layer is high insulated electro resistance layer, and described middle insulating barrier is high heat-insulating layer, and described external insulation layer is the high flame retardant insulating barrier.
Because conductor is the structure that inner insulating layer and external insulation layer are arranged, internal layer adopts high insulation resistance insulating material to extrude, and the outer high flame resistance insulating material that adopts extrudes, thereby makes the insulation of cable and fire resistance can both satisfy standard-required.
Description of drawings
Fig. 1 is the structural representation of the utility model multilayer insulation cable.
Embodiment
Referring to Fig. 1 as can be known, the described cable of multilayer insulation cable includes several multilayer insulation conductors, described multilayer insulation conductor inside is core conductor 1, outside the core conductor 1 is inner insulating layer 2, the outside of inner insulating layer 2 is middle insulating barrier 3, in insulating barrier 3 outer be external insulation layer 4, described several multilayer insulation conductor external packets be wrapped with sheath 6 and between the gap fill with inserts 5.Described several multilayer insulation conductors closely are looped around in the cable.Described inner insulating layer 2 is high insulated electro resistance layer, and described middle insulating barrier 3 is high heat-insulating layer, and described external insulation layer 4 is the high flame retardant insulating barrier.
Claims (3)
1. multilayer insulation cable, it is characterized in that: described cable includes several multilayer insulation conductors, described multilayer insulation conductor inside is the core conductor, the core conductor is outward an inner insulating layer, the outside of inner insulating layer is middle insulating barrier, in insulating barrier be outward external insulation layer, described several multilayer insulation conductor external packets be wrapped with sheath and between the gap fill with inserts.
2. multilayer insulation cable according to claim 1 is characterized in that: described several multilayer insulation conductors closely are looped around in the cable.
3. multilayer insulation cable according to claim 1 is characterized in that: described inner insulating layer is high insulated electro resistance layer, and described middle insulating barrier is high heat-insulating layer, and described external insulation layer is the high flame retardant insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202114331U CN201345230Y (en) | 2008-12-23 | 2008-12-23 | Multilayer insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202114331U CN201345230Y (en) | 2008-12-23 | 2008-12-23 | Multilayer insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201345230Y true CN201345230Y (en) | 2009-11-11 |
Family
ID=41276815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202114331U Expired - Fee Related CN201345230Y (en) | 2008-12-23 | 2008-12-23 | Multilayer insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201345230Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297979A (en) * | 2015-06-09 | 2017-01-04 | 湖北宇洪光电实业有限公司 | A kind of control bus being applied in photovoltaic generation monitoring system |
| CN111312442A (en) * | 2020-02-27 | 2020-06-19 | 广东广深电缆有限公司 | Combinable cable |
-
2008
- 2008-12-23 CN CNU2008202114331U patent/CN201345230Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297979A (en) * | 2015-06-09 | 2017-01-04 | 湖北宇洪光电实业有限公司 | A kind of control bus being applied in photovoltaic generation monitoring system |
| CN106297979B (en) * | 2015-06-09 | 2017-09-05 | 湖北宇洪光电实业有限公司 | A kind of controlling bus being applied in photovoltaic generation monitoring system |
| CN111312442A (en) * | 2020-02-27 | 2020-06-19 | 广东广深电缆有限公司 | Combinable cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20101223 |