CN201965976U - Instrument cable for nuclear power station - Google Patents
Instrument cable for nuclear power station Download PDFInfo
- Publication number
- CN201965976U CN201965976U CN2010206918368U CN201020691836U CN201965976U CN 201965976 U CN201965976 U CN 201965976U CN 2010206918368 U CN2010206918368 U CN 2010206918368U CN 201020691836 U CN201020691836 U CN 201020691836U CN 201965976 U CN201965976 U CN 201965976U
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- nuclear power
- power station
- polyester belt
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Abstract
The utility model discloses an instrument cable for a nuclear power station, which comprises a plurality of groups of conductor groups and internal insulating layers, wherein the groups of conductor groups are respectively formed by longitudinally placing two conductor wire cores in parallel; the internal insulating layers and external insulating layers are arranged outside the two conductor wire cores; first polyester belt layers and secondary shielding layers are arranged outside the external insulating layers of the groups of conductor groups in turn; drainage wires are arranged between the first polyester belt layers and the secondary shielding layers; a second polyester belt layer, a primary shielding layer and a sheath layer are arranged at the outer sides of the secondary shielding layers in turn; the external insulating layers are made of halogen free flame retardant crosslinking polyolefin; the secondary shielding layers and the primary shielding layer are formed by weaving copper wires; and the external sheath layer is made of low smoke halogen free flame retardant polyolefin. The instrument cable for the nuclear power station is halogen free, low smoke, flame retardant, environment-friendly and sanitary, has the advantages of excellent bundle combustion flame retardant thermal property, good component compatibility and shock resistant performance, and strong radiation resistant environmental performance, and still has an insulating performance and an electrical safety performance in the environment with different temperatures.
Description
Technical field:
The utility model relates to the polar core field of cables, relates in particular to a kind of used in nuclear power station instrument cable.
Background technology:
Cable is in order to transmit electricity (magnetic) energy, the wire product of information and the conversion of realization electromagnetic energy.Normally by the cable of several or at least two every group stranded similar ropes that form of several groups of leads, mutually insulated between every group of lead, and often be twisted into round a center, whole outside is surrounded by the cover layer of high-insulation.Electric wire mainly comprises bare wire, electromagnetic wire and electrical equipment and electrical insulated electric conductor, power cable, telecommunication cable and optical cable.
The polar core cable is generally used for guaranteeing scram under the outer earthquake load of nuclear power plant containment shell, containment is isolated, the emergent cooling of reactor core, reactor waste is derived, and prevents radioactive substance the 1E level K2 class and the K3 class instrument communication system of function such as environmental emission towards periphery.K2 class safe level: be installed in the containment vessel; K3 safe level: be installed in beyond the nuclear reactor.
The utility model content:
The purpose of this utility model provides a kind of used in nuclear power station instrument cable, be used for to guarantee scram under the outer earthquake load of nuclear power plant containment shell, containment is isolated, the emergent cooling of reactor core, reactor waste is derived, and prevents radioactive substance the 1E level K2 class and the K3 class instrument communication system of function such as environmental emission towards periphery.
The technical solution of the utility model is as follows:
A kind of used in nuclear power station instrument cable, comprise array conductor group, inner insulating layer, it is characterized in that: described array conductor group all has two parallel vertical formations of putting of conductor thread core, described two conductor thread cores all are enclosed with inner insulating layer, external insulation layer outward, the outside of the external insulation layer of described array conductor group is enclosed with polyester belt one, sub-shield successively, be provided with drainage thread between described polyester belt one and the sub-shield, the described sub-shield outside is enclosed with polyester belt two, total screen, restrictive coating successively.
Described used in nuclear power station instrument cable, it is characterized in that: it is the non-halogen flame-proof cross-linking polyolefin that described external insulation layer adopts material, described sub-shield and total screen adopt the copper wire braiding to constitute, and it is low smoke halogen-free flame-retardant polyolefin that described restrictive coating adopts material.
The utility model has the advantages that:
1. have characteristics such as Halogen, low cigarette, flame-proof environmental protection health;
2. the burning light transmittance of cable is big, and conductivity is less;
3. You Yi bunchy burns fire-retardant hot;
4. good ageing-resistant and weather ageing properties;
5. still have insulation property and electrical security under the different temperatures environment;
6. good component compatibility and shock resistance;
7. long service life, the length of service was not less than 50 years;
8. the radiation hardness environmental performance is strong.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
A kind of used in nuclear power station instrument cable, comprise array conductor group 1, inner insulating layer 2, array conductor group 1 all has two conductor thread cores, the 3 parallel vertical formations of putting, two conductor thread core 3 outer inner insulating layers 2 that all are enclosed with, external insulation layer 4, the outside of the external insulation layer 4 of array conductor group 1 is enclosed with polyester belt 1 successively, sub-shield 6, be provided with drainage thread 7 between polyester belt 1 and the sub-shield 6, sub-shield 6 outsides are enclosed with polyester belt 28 successively, total screen 9, restrictive coating 10, it is the non-halogen flame-proof cross-linking polyolefin that external insulation layer 5 adopts material, sub-shield 6 and total screen 9 adopt the copper wire braiding to constitute, and it is low smoke halogen-free flame-retardant polyolefin that restrictive coating 10 adopts material.
Claims (2)
1. used in nuclear power station instrument cable, comprise array conductor group, inner insulating layer, it is characterized in that: described array conductor group all has two parallel vertical formations of putting of conductor thread core, described two conductor thread cores all are enclosed with inner insulating layer, external insulation layer outward, the outside of the external insulation layer of described array conductor group is enclosed with polyester belt one, sub-shield successively, be provided with drainage thread between described polyester belt one and the sub-shield, the described sub-shield outside is enclosed with polyester belt two, total screen, restrictive coating successively.
2. used in nuclear power station instrument cable according to claim 1, it is characterized in that: it is the non-halogen flame-proof cross-linking polyolefin that described external insulation layer adopts material, described sub-shield and total screen adopt the copper wire braiding to constitute, and it is low smoke halogen-free flame-retardant polyolefin that described restrictive coating adopts material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206918368U CN201965976U (en) | 2010-12-30 | 2010-12-30 | Instrument cable for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206918368U CN201965976U (en) | 2010-12-30 | 2010-12-30 | Instrument cable for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201965976U true CN201965976U (en) | 2011-09-07 |
Family
ID=44528529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206918368U Expired - Fee Related CN201965976U (en) | 2010-12-30 | 2010-12-30 | Instrument cable for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201965976U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854781A (en) * | 2014-02-24 | 2014-06-11 | 安徽华源电缆集团有限公司 | High-temperature-resistant K-3-level cable used for 1E-type nuclear power plant |
| CN105679412A (en) * | 2016-03-30 | 2016-06-15 | 上海核工程研究设计院 | Nuclear power plant rod position indication system reactor top cable |
-
2010
- 2010-12-30 CN CN2010206918368U patent/CN201965976U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854781A (en) * | 2014-02-24 | 2014-06-11 | 安徽华源电缆集团有限公司 | High-temperature-resistant K-3-level cable used for 1E-type nuclear power plant |
| CN103854781B (en) * | 2014-02-24 | 2017-05-10 | 安徽华源电缆集团有限公司 | High-temperature-resistant K-3-level cable used for 1E-type nuclear power plant |
| CN105679412A (en) * | 2016-03-30 | 2016-06-15 | 上海核工程研究设计院 | Nuclear power plant rod position indication system reactor top 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: 20110907 Termination date: 20131230 |