CN202662347U - 1E-grade K1-type low-smoke halogen-free flame-retardant cable for nuclear power plants - Google Patents
1E-grade K1-type low-smoke halogen-free flame-retardant cable for nuclear power plants Download PDFInfo
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- CN202662347U CN202662347U CN 201220201714 CN201220201714U CN202662347U CN 202662347 U CN202662347 U CN 202662347U CN 201220201714 CN201220201714 CN 201220201714 CN 201220201714 U CN201220201714 U CN 201220201714U CN 202662347 U CN202662347 U CN 202662347U
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Abstract
The utility model belongs to the technical field of cables and relates to a 1E-grade K1-type low-smoke halogen-free flame-retardant cable for nuclear power plants. Technical problems such as unreasonable design in the prior art are solved. The 1E-grade K1-type low-smoke halogen-free flame-retardant cable comprises a plurality of tinned copper conductors and further comprises an irradiation crosslinking outer sheath, wherein a first halogen-free flame-retardant belt is arranged on the inner wall of the irradiation crosslinking outer sheath; a second halogen-free flame-retardant belt is arranged on the inner wall of the first halogen-free flame-retardant belt; a high flame-retardant filling layer is arranged between the first halogen-free flame-retardant belt and the second halogen-free flame-retardant belt; the tinned copper conductors penetrate through the second halogen-free flame-retardant belt; and an irradiation crosslinking double insulating layer capable of making the tinned copper conductors completely independent is arranged between each tinned copper conductor and the second halogen-free flame-retardant belt. Compared with the prior art, the 1E-grade K1-type low-smoke halogen-free flame-retardant cable of the utility model has the advantages of being provided with low-smoke, halogen-free, flame-retardant, radiation-resistant and LOCA (loss of coolant accident) -resistant performances at the same time, and being long in service life, good in insulation effect and lower in cost.
Description
Technical field
The utility model belongs to the cable technology field, relates to a kind of used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable.
Background technology
Along with socioeconomic fast development, the consumption of cable increases sharply rapidly; Nuclear power more and more receives the concern of society as a kind of high efficient energy sources.The generation of nuclear power just must be built nuclear power station, because the particularity of nuclear power station, very high to the operational outfit requirement, the cable of its usefulness also is that very high requirement is arranged.In the prior art, the cable of used in nuclear power station also must possess low cigarette, Halogen, fire-retardant, radiation hardness and anti-LOCA (coolant loss accident) performance on the basis of the electric and mechanical property that common cable has; Dropped in the nuclear power station of building and using existing, 1E level K1 class cable is brought into use, but the thermal life of existing 1E level K1 class cable is short, radiation resistance is poor, anti-LOCA poor performance, and insulating properties is undesirable.
The problem that exists in order to solve prior art, people have carried out long-term exploration, have proposed various solutions.For example, Chinese patent literature discloses a kind of nuclear island cable for nuclear power station [application number: 200520072431.5], extrude the insulating barrier that consists of and carry out vapor crosslinking by the ethylene-propylene rubber insulated of anti-irradiation material at conductor, insulated wire cores twisted synthesizing cable, and the packed layer that is consisted of by dustless mineral wool rope at the cable core gap-fill.Wrapped band on packed layer extrudes high flame retardant oxygen barrier layer and the solid type rubber outer jacket of radiotolerant at band again.
Such scheme has improved prior art to a certain extent, but is not still prolonged on the thermal life of whole cable, and the cable aging speed is very fast, anti-LOCA performance is not ideal enough, insulation effect is poor, has shortened the useful life of cable, causes maintenance cost and production cost to rise.
Summary of the invention
The purpose of this utility model is for the problems referred to above, a kind of possess simultaneously low cigarette, Halogen, fire-retardant, radiation hardness and anti-LOCA (coolant loss accident) performance are provided, but also it is long to have a thermal life, insulation effect is good, can reduce the used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable of cost.
For achieving the above object, the utility model has adopted following technical proposal: comprise some tinned copper conductors, it is characterized in that, this low-smoke halogen-free inflaming-retarding cable also comprises the cross-linking radiation oversheath, inwall at the cross-linking radiation oversheath is provided with the first halogen-free flameproof band, be provided with the second halogen-free flameproof band at the first halogen-free flameproof band inwall, be provided with the high flame retardant packed layer between described the first halogen-free flameproof band and the second halogen-free flameproof band, described tinned copper conductor is located in the second halogen-free flameproof band, and being respectively equipped with between every tinned copper conductor and the second halogen-free flameproof band can be with each tinned copper conductor cross-linking radiation double insulating layer fully independently.
As another kind of scheme, in above-mentioned used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable, be provided with the tinned copper wire screen between described the first halogen-free flameproof band and the high flame retardant packed layer.
In above-mentioned used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable, described cross-linking radiation double insulating layer comprises the cross-linking radiation external insulation layer and is arranged on the interior cross-linking radiation inner insulating layer of cross-linking radiation external insulation layer, described cross-linking radiation external insulation layer links to each other with the second halogen-free flameproof band, and described cross-linking radiation inner insulating layer links to each other with tinned copper conductor.
In above-mentioned used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable, described cross-linking radiation external insulation layer is IXPE or cross-linking radiation ethylene-propylene rubber, and described cross-linking radiation inner insulating layer is cross-linking radiation polyolefin or cross-linking radiation ethylene-propylene rubber.
In above-mentioned used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable, described cross-linking radiation oversheath is cross-linking radiation polyolefin or cross-linking radiation ethylene-propylene rubber.
Compared with prior art, the advantage of this used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable is: possess simultaneously low cigarette, Halogen, fire-retardant, radiation hardness and anti-LOCA (coolant loss accident) performance, it is long also to have a thermal life, and insulation effect is good, can reduce cost.
Description of drawings
Fig. 1 is embodiment one structural representation that the utility model provides.
Fig. 2 is embodiment two structural representations that the utility model provides.
Among the figure, tinned copper conductor 1, cross-linking radiation oversheath 2, the first halogen-free flameproof band 3, the second halogen-free flameproof band 4, high flame retardant packed layer 5, double insulating layer 6, tinned copper wire screen 7, cross-linking radiation external insulation layer 61, cross-linking radiation inner insulating layer 62.
Embodiment
Below be the specific embodiment and by reference to the accompanying drawings of utility model, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Embodiment one
As shown in Figure 1, this used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable, comprise some tinned copper conductors 1, this low-smoke halogen-free inflaming-retarding cable also comprises cross-linking radiation oversheath 2, inwall at cross-linking radiation oversheath 2 is provided with the first halogen-free flameproof band 3, be provided with the second halogen-free flameproof band 4 at the first halogen-free flameproof band 3 inwalls, between the first halogen-free flameproof band 3 and the second halogen-free flameproof band 4, be provided with high flame retardant packed layer 5, described tinned copper conductor 1 is located in the second halogen-free flameproof band 4, and being respectively equipped with between every tinned copper conductor 1 and the second halogen-free flameproof band 3 can be with each tinned copper conductor 1 cross-linking radiation double insulating layer 6 fully independently.
Concrete, cross-linking radiation double insulating layer 6 comprises cross-linking radiation external insulation layer 61 and the cross-linking radiation inner insulating layer 62 that is arranged in the cross-linking radiation external insulation layer 61, described cross-linking radiation external insulation layer 61 links to each other with the second halogen-free flameproof band 4, and described cross-linking radiation inner insulating layer 62 links to each other with tinned copper conductor 1.
More particularly, cross-linking radiation external insulation layer 61 is IXPE or cross-linking radiation ethylene-propylene rubber, and described cross-linking radiation inner insulating layer 62 is cross-linking radiation polyolefin or cross-linking radiation ethylene-propylene rubber; When cross-linking radiation external insulation layer 61 is IXPE, cross-linking radiation inner insulating layer 62 is cross-linking radiation ethylene-propylene rubber.Further, cross-linking radiation oversheath 2 is cross-linking radiation polyolefin or cross-linking radiation ethylene-propylene rubber.
The advantage of the present embodiment is: possess simultaneously low cigarette, Halogen, fire-retardant, radiation hardness and anti-LOCA (coolant loss accident) performance, the thermal life is long, and insulation effect is good, can reduce cost; The thermal life here can reach more than 60 years, and 60 years cable radiation aging experimental conditions of equivalence are 150 ℃ * 2356h, according to the reference design accident requirement of AP1000 environment first area, reach present international generation Ⅲ nuclear power technical level.
Embodiment two
As shown in Figure 2, the present embodiment is basic identical with structure and the principle of embodiment one, Gu therefore not to repeat here, and different place is: be provided with tinned copper wire screen 7 between the first halogen-free flameproof band 3 and high flame retardant packed layer 5.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as tinned copper conductor 1, cross-linking radiation oversheath 2, the first halogen-free flameproof band 3, the second halogen-free flameproof band 4, high flame retardant packed layer 5, double insulating layer 6, tinned copper wire screen 7, cross-linking radiation external insulation layer 61, cross-linking radiation inner insulating layer 62, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (5)
1. used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable, comprise some tinned copper conductors (1), it is characterized in that, this low-smoke halogen-free inflaming-retarding cable also comprises cross-linking radiation oversheath (2), inwall at cross-linking radiation oversheath (2) is provided with the first halogen-free flameproof band (3), be provided with the second halogen-free flameproof band (4) at the first halogen-free flameproof band (3) inwall, be provided with high flame retardant packed layer (5) between described the first halogen-free flameproof band (3) and the second halogen-free flameproof band (4), described tinned copper conductor (1) is located in the second halogen-free flameproof band (4), and being respectively equipped with between every tinned copper conductor (1) and the second halogen-free flameproof band (3) can be with each tinned copper conductor (1) cross-linking radiation double insulating layer (6) fully independently.
2. used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable according to claim 1 is characterized in that, is provided with tinned copper wire screen (7) between described the first halogen-free flameproof band (3) and the high flame retardant packed layer (5).
3. used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable according to claim 1 and 2, it is characterized in that, described cross-linking radiation double insulating layer (6) comprises cross-linking radiation external insulation layer (61) and is arranged on the interior cross-linking radiation inner insulating layer (62) of cross-linking radiation external insulation layer (61), described cross-linking radiation external insulation layer (61) links to each other with the second halogen-free flameproof band (4), and described cross-linking radiation inner insulating layer (62) links to each other with tinned copper conductor (1).
4. used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable according to claim 3, it is characterized in that, described cross-linking radiation external insulation layer (61) is IXPE or cross-linking radiation ethylene-propylene rubber, and described cross-linking radiation inner insulating layer (62) is cross-linking radiation polyolefin or cross-linking radiation ethylene-propylene rubber.
5. used in nuclear power station 1E level K1 class low-smoke halogen-free inflaming-retarding cable according to claim 4 is characterized in that, described cross-linking radiation oversheath (2) is cross-linking radiation polyolefin or cross-linking radiation ethylene-propylene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220201714 CN202662347U (en) | 2012-05-08 | 2012-05-08 | 1E-grade K1-type low-smoke halogen-free flame-retardant cable for nuclear power plants |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220201714 CN202662347U (en) | 2012-05-08 | 2012-05-08 | 1E-grade K1-type low-smoke halogen-free flame-retardant cable for nuclear power plants |
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| CN202662347U true CN202662347U (en) | 2013-01-09 |
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| CN 201220201714 Expired - Fee Related CN202662347U (en) | 2012-05-08 | 2012-05-08 | 1E-grade K1-type low-smoke halogen-free flame-retardant cable for nuclear power plants |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143390A (en) * | 2014-07-11 | 2014-11-12 | 安徽宏源特种电缆集团有限公司 | Deep water seal rubber sleeve cable and manufacturing process thereof |
| CN105976907A (en) * | 2016-07-22 | 2016-09-28 | 浙江秦山电缆有限公司 | High-flame-retardant high-insulation-resistance low-smoke zero-halogen cable power line and preparation process thereof |
| CN108040374A (en) * | 2017-12-04 | 2018-05-15 | 安徽赫特电气有限责任公司 | One kind series connection invariable power heating tape and its manufacture method |
-
2012
- 2012-05-08 CN CN 201220201714 patent/CN202662347U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143390A (en) * | 2014-07-11 | 2014-11-12 | 安徽宏源特种电缆集团有限公司 | Deep water seal rubber sleeve cable and manufacturing process thereof |
| CN104143390B (en) * | 2014-07-11 | 2017-10-24 | 安徽宏源特种电缆集团有限公司 | A kind of manufacturing process of deep water sealing Plastic-sheathed Cable |
| CN105976907A (en) * | 2016-07-22 | 2016-09-28 | 浙江秦山电缆有限公司 | High-flame-retardant high-insulation-resistance low-smoke zero-halogen cable power line and preparation process thereof |
| CN108040374A (en) * | 2017-12-04 | 2018-05-15 | 安徽赫特电气有限责任公司 | One kind series connection invariable power heating tape and its manufacture method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20210508 |