CN201383372Y - Radiation-resistance combination shielding compensation cable used for nuclear power station - Google Patents

Radiation-resistance combination shielding compensation cable used for nuclear power station Download PDF

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Publication number
CN201383372Y
CN201383372Y CN200920080113U CN200920080113U CN201383372Y CN 201383372 Y CN201383372 Y CN 201383372Y CN 200920080113 U CN200920080113 U CN 200920080113U CN 200920080113 U CN200920080113 U CN 200920080113U CN 201383372 Y CN201383372 Y CN 201383372Y
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China
Prior art keywords
cable
nuclear power
power station
core
conductor
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Expired - Fee Related
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CN200920080113U
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Chinese (zh)
Inventor
王娟
盛业武
陈贵德
沈智飞
宋强
靳荐宇
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Sichuan Star Cable Co Ltd
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Sichuan Star Cable Co Ltd
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Priority to CN200920080113U priority Critical patent/CN201383372Y/en
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Publication of CN201383372Y publication Critical patent/CN201383372Y/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/14Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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Abstract

The utility model discloses a radiation-resistance combination shielding compensation cable used for a nuclear power station. which comprises a cable conductor, an external jacket and a gird isolated layer between the cable conductor and the external jacket, wherein the cable conductor at least is formed by twisting a plurality of shielding line cores; each shielding line core comprises a conductor line core, an internal gird isolated layer and an internal combination shielding layer; the conductor line core is formed by twisting a plurality of conductor lines arranged in a combination insulating layer; the internal gird isolated layer is arranged outside the conductor line core; the internal combination shielding layer is arranged outside the internal gird isolated layer; an external gird isolated layer is arranged outside the cable conductor; and an external combination shielding layer is arranged between the external gird isolated layer and the external jacket. The compensation cable can be used in the nuclear power station, can meet the utilization requirements on high insulativity and high flame retarding of the nuclear cable, can effectively shield the mutual interference among the cables when in compensating signal transmission, and can ensure the steadiness and the reality of the compensating signal transmission.

Description

Used in nuclear power station radiation hardness composite shielding type compensating cable
Technical field
The utility model relates to a kind of cable, particularly a kind of radiation hardness composite shielding type compensating cable that is mainly used in nuclear power station.
Background technology
The nuclear power station environment for use requires the used in nuclear power station cable to have high electrical performance, high flame retardant and radiation resistance.At present the insulating barrier of normal cable is a single structure, when it will possess high electrical performance, to other performance of insulation particularly fire resistance will not examine; When it will possess the anti-flammability requirement, there is not extra high examination requirement in the electric property that insulate yet.Common cable is used under the radiation environment, and insulation and sheath material aging speed are very fast, have reduced the useful life of cable to a great extent, and have influenced the cable safety in utilization.The used in nuclear power station cable then requires cable to have high-insulativity, high flame retardant and radiation resistance, and it must guarantee to possess anti-flammability and the radiation resistance that adapts under the nuclear power operational environment under the situation of high insulation resistance simultaneously again.And these two kinds of performances all condition each other on commaterial, can not simultaneously good anti-flammability be arranged again under the situation of high insulation resistance, also can not under the situation of excellent flame-retardant performance extra high insulation resistance be arranged; Though material circle personage both domestic and external has also done the wide variety of materials research work for this reason, but the stabilizing material that possesses these two kinds of performances simultaneously and meet nuclear power standard needs also can not put goods on the market so far, attempt with the pattern of the single structure technology of simplifying working process with the low-smoke non-halogen flame-retardant cross-linking radiation polyolefine material of present domestic optimum, but its finished product insulation resistance constant value is swung between qualified and defective still, therefore, be difficult to guarantee the stability of the electrical insulation properties of product with homogenous material.
The utility model content
The purpose of this utility model is the above-mentioned technical problem that exists when being that overcoming existing cable is applied in the nuclear power station, a kind of used in nuclear power station radiation hardness composite shielding type compensating cable is provided, the utility model is used for nuclear power plant environment, can satisfy the instructions for use of nuclear cables high-insulativity and high flame retardant, can effectively shield the phase mutual interference when compensating the signal transmission between each line group, guarantee the stability and the authenticity of compensating signal transmission, has shielding action, effectively shielded extraneous electromagnetic interference, make the extraneous interference of electromagnetic field not produce any influence to cable itself, guaranteed cable normally operation in noiseless environment, guaranteed the accurate transmission of whole cable signal, guarantee the safe operation of testing equipment, improved the reliability of equipment and the accuracy of measurement data.
The technical solution of the utility model comprises following content:
A kind of used in nuclear power station radiation hardness composite shielding type compensating cable, comprise cable core, oversheath and be located at cable core and oversheath between outer band separator, it is characterized in that: core is stranded forms by many shieldings for described cable core, described shielding core comprises the stranded conductor thread core that forms of conductor lines, the outer interior band separator that is provided with of conductor thread core and the outer interior composite shielding layer that is provided with of interior band separator that is arranged in the composite insulation layer by many, cable core is outside equipped with outer band separator, is provided with outer composite shielding layer between outer band separator and the oversheath.
Described conductor lines is the anodal and negative level conductor lines of alloy silk.
Described composite insulation layer is the composite insulation layer of IXPE and the double-deck disposal molding of low-smoke non-halogen flame-retardant cross-linking radiation polyolefin.
Composite shielding layer and outer composite shielding layer include overlapping wrapped plastic-aluminum band and add the tin copper wire that is plated on the plastic-aluminum band in described.
Band separator and outer band separator include overlapping wrapped Halogen band in described.
Adopt advantage of the present utility model to be:
One, compares with common compensating cable and have very high insulating properties and anti-flammability, composite insulation layer adopts the IXPE of high-insulativity and the double-deck disposable structure of extruding of cross-linking radiation polyolefin of high flame retardant, has guaranteed the high-insulativity and the high flame retardant of used in nuclear power station compensating cable.
Two, compare with common compensating cable and have good radiation resistance, testpieces is subjected to behind the 251kGy60Co gamma-ray irradiation no abnormal respectively, interior composite shielding layer and outside composite shielding layer, can effectively shield the phase mutual interference when compensating the signal transmission between each line group, guarantee each accuracy line group transmission signals.
Three; band separator and outer band separator in being provided with; can prevent the injury of screen to the insulated electric conductor core; conductor thread core and composite insulation layer have been protected effectively; composite shielding layer outside between cable core and oversheath, being provided with; played excellent shielding effect; effectively shielded extraneous electromagnetic interference; make the extraneous interference of electromagnetic field not produce any influence to cable itself; guaranteed cable normally operation in noiseless environment; guaranteed the accurate transmission of whole cable signal; guarantee the safe operation of testing equipment, improved the reliability of equipment and the accuracy of measurement data.
Four, composite insulation layer and outer Composite Double insulating barrier in the utility model adopts make cable insulation good, good flame resistance, but radioresistance; Line group and total shielding adopt that the composite shielding structure can anti-line group be disturbed, the conducted interference of outer bound pair compensating signal, have improved the reliability of equipment and the accuracy of measurement data; Structures such as the band separator of the overlapping wrapped formation of Halogen band and fire-retardant filling have also greatly improved the anti-flammability of cable, thereby have promoted the fail safe that cable uses.
Description of drawings
Fig. 1 is a cross-sectional view of the present utility model
Be labeled as among the figure: 1, shielding core, 2, conductor lines, 3, composite insulation layer, 4, interior band separator, 5, interior composite shielding layer, 6, filler, 7, outer band separator, 8, outer composite shielding layer, 9, oversheath.
Embodiment
Embodiment 1
A kind of used in nuclear power station radiation hardness composite shielding type compensating cable, comprise cable core, oversheath 9 and be located at cable core and oversheath 9 between outer band separator 7, cable core is by many shielding core 1 stranded formation, promptly comprise the many shielding cores that twist together, shielding core 1 comprises the conductor lines 2 stranded conductor thread cores that form that are arranged in the composite insulation layer 3 by many, outer interior band separator 4 that is provided with of conductor thread core and the interior band separator 4 outer interior composite shielding layers 5 that are provided with, cable core is outside equipped with outer band separator 7, is provided with outer composite shielding layer 8 between outer band separator 7 and the oversheath 9.
In the utility model, be filled with high flame retardant material filler 6 between the shielding core 1 in the outer band separator 7.Conductor lines 2 is alloy silk positive pole and cathode conductor line.Composite insulation layer 3 is the composite insulation layer of IXPE and the double-deck disposal molding of low-smoke non-halogen flame-retardant cross-linking radiation polyolefin.Interior composite shielding layer 5 and outer composite shielding layer 7 include overlapping wrapped plastic-aluminum band and add the tin copper wire that is plated on the plastic-aluminum band.Interior band separator 4 and outer band separator 7 include overlapping wrapped Halogen band.Oversheath 9 extrudes structure for low-smoke halogen-free flame-retardant thermoplastic polyolefin or low-smoke non-halogen flame-retardant cross-linked polyolefin.
Embodiment 2
A kind of used in nuclear power station radiation hardness composite shielding type compensating cable, comprise cable core, oversheath 9 and be located at cable core and oversheath 9 between outer band separator 7, core is stranded forms by four shieldings for cable core, promptly comprise four shielding cores that twist together, shielding core 1 comprises the conductor lines 2 stranded conductor thread cores that form that are arranged in the composite insulation layer 3 by many, outer interior band separator 4 that is provided with of conductor thread core and the interior band separator 4 outer interior composite shielding layers 5 that are provided with, composite insulation layer 3 is double-deck, cable core is outside equipped with outer band separator 7, is provided with outer composite shielding layer 8 between outer band separator 7 and the oversheath 9.Composite insulation layer 3 is the double-deck disposable extrusion molding of IXPE and low-smoke non-halogen flame-retardant cross-linking radiation polyolefin.
Certainly; the utility model is not limited to above-mentioned execution mode, can also be more such as the shielding conductor group quantity in the cable core, and all have based on spirit of the present utility model; and be any type of modification of the utility model or change, all belong to the category of the utility model intention protection.

Claims (5)

1, a kind of used in nuclear power station radiation hardness composite shielding type compensating cable, comprise cable core, oversheath (9) and be located at cable core and oversheath (9) between outer band separator (7), it is characterized in that: described cable core is by many stranded formation of shielding core (1), described shielding core (1) comprises the stranded conductor thread core that forms of conductor lines (2) that is arranged in the composite insulation layer (3) by many, outer interior band separator (4) that is provided with of conductor thread core and the outer interior composite shielding layer (5) that is provided with of interior band separator (4), cable core is outside equipped with outer band separator (7), is provided with outer composite shielding layer (8) between outer band separator (7) and the oversheath (9).
2, used in nuclear power station radiation hardness composite shielding type compensating cable according to claim 1 is characterized in that: described conductor lines (2) is alloy silk positive pole and cathode conductor line.
3, used in nuclear power station radiation hardness composite shielding type compensating cable according to claim 1 is characterized in that: described composite insulation layer (3) is the composite insulation layer of IXPE and the double-deck disposal molding of low-smoke non-halogen flame-retardant cross-linking radiation polyolefin.
4, used in nuclear power station radiation hardness composite shielding type compensating cable according to claim 1 is characterized in that: composite shielding layer (5) and outer composite shielding layer (8) include overlapping wrapped plastic-aluminum band and add the tin copper wire that is plated on the plastic-aluminum band in described.
5, used in nuclear power station radiation hardness composite shielding type compensating cable according to claim 1 is characterized in that: band separator (4) and outer band separator (7) include overlapping wrapped Halogen band in described.
CN200920080113U 2009-04-09 2009-04-09 Radiation-resistance combination shielding compensation cable used for nuclear power station Expired - Fee Related CN201383372Y (en)

Priority Applications (1)

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CN200920080113U CN201383372Y (en) 2009-04-09 2009-04-09 Radiation-resistance combination shielding compensation cable used for nuclear power station

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Application Number Priority Date Filing Date Title
CN200920080113U CN201383372Y (en) 2009-04-09 2009-04-09 Radiation-resistance combination shielding compensation cable used for nuclear power station

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CN201383372Y true CN201383372Y (en) 2010-01-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102074284A (en) * 2010-12-29 2011-05-25 金坛市金鹿电缆材料有限公司 Dual-shielding flame-retardant nuclear power data cable
CN103854779A (en) * 2014-02-24 2014-06-11 安徽华联电缆集团有限公司 Compensating cable for thermocouple
CN103871661A (en) * 2014-02-24 2014-06-18 安徽华联电缆集团有限公司 Power cable special for securely attached nuclear power station

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102074284A (en) * 2010-12-29 2011-05-25 金坛市金鹿电缆材料有限公司 Dual-shielding flame-retardant nuclear power data cable
CN103854779A (en) * 2014-02-24 2014-06-11 安徽华联电缆集团有限公司 Compensating cable for thermocouple
CN103871661A (en) * 2014-02-24 2014-06-18 安徽华联电缆集团有限公司 Power cable special for securely attached nuclear power station
CN103871661B (en) * 2014-02-24 2016-04-06 安徽华联电缆集团有限公司 A kind of safety-type nuclear power station specialized power cable
CN103854779B (en) * 2014-02-24 2016-08-24 安徽华联电缆集团有限公司 A kind of compensating cable for thermocouple

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100113

Termination date: 20150409

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