CN102074295A - Sub-line filling-pressing strip of triple shielded nuclear power cable - Google Patents
Sub-line filling-pressing strip of triple shielded nuclear power cable Download PDFInfo
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- CN102074295A CN102074295A CN2010106208240A CN201010620824A CN102074295A CN 102074295 A CN102074295 A CN 102074295A CN 2010106208240 A CN2010106208240 A CN 2010106208240A CN 201010620824 A CN201010620824 A CN 201010620824A CN 102074295 A CN102074295 A CN 102074295A
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Abstract
The invention discloses a sub-line filling-pressing strip of a triple shielded nuclear power cable. The cross-section shape of the sub-line filling-pressing strip is formed by combining an external circular arc with two inner circular arcs; the diameter of the external circular arc is equal to the inner diameter of a second shielding layer; the diameters of the two inner circular arcs are equal to the outer diameter of a sub-line shielding layer; and two inner circular arcs are externally tangent, and are internally tangent with the external arc, thus the cross-sectional shape is matched with the distribution cross section of three sub-lines. When the sub-line filling-pressing strip is used for wrapping the three sub-lines, so that the filling-pressing strip of the three sub-lines and the three sub-lines are wrapped into a round section, so that the three sub-lines can be mutually arranged regularly, the sub-lines are prevented from being interleaved and wound with each other, the sub-line groups of the whole power cable and the sub-line filling-pressing strip are combined to obtain a regular round section, which is convenient for the combination of a second shielding layer sleeve and an inner insulating sleeve, and the combination of a first shielding layer sleeve and an outer insulating sleeve.
Description
Technical field:
The present invention relates to a kind of nuclear power special electric power cable, the sub-line that relates in particular in the nuclear power special electric power cable tamps bar.
Background technology:
Along with the fast development of nuclear power industry, increasing to the demand of nuclear power output cable, require also more and more highlyer, at present, the no electromagnetic interference requirement of " electromagnetic compatibility " the nuclear power power cable is proposed both at home and abroad.Have now and can not meet the demands as the used plain edition power cable of transferring electric power, power cable especially for the frequency conversion loop, the in use inevitable high order harmonic component that exists is disturbed, when electric current passes through power cable, can disturb electric the generation with control system of contiguous distribution line, the serious normal operation of whole system of also can giving brings hidden danger.Fail safe is vital in the nuclear power construction, emphasize " physical segregation of signal cable and power cable " in HAD102/14 in " nuclear safety guide rule " " relevant instrument of npp safety and control system " the 4.8 electrical Interference chapters and sections, and the plain edition power cable can not satisfy above-mentioned requirements, can not solve the electromagnetic shielding problem in the power cable transmission of electricity process.The applicant has developed a kind of triple shielding nuclear power power cable, and it can satisfy " electromagnetic compatibility (EMC) " and nuclear power " function isolation " requirement, can meet environmental protection (EM) requirement again, cable profile rounding.
Described triple shielding nuclear power power cable, it is by the outer layer insulation cover, first screen, the primary insulation cover, the secondary shielding layer, the insulated bus guipure, sub-line and sub-line are filled press strip and are formed, the cylindrical of the sub-line screen of three root lines is in contact with one another, the center of three root lines is the equilateral triangle setting, three root lines filling press strip is arranged on three root lines and contacts place, formed space, make three root lines and three root lines fill press strip and form circular cross-section, and block by insulated bus guipure net, outside the insulated bus guipure, be provided with the secondary shielding layer successively, the primary insulation cover, first screen and outer layer insulation cover.Wherein, the effect that sub-line tamps bar is that three root lines are regularly arranged good mutually, prevent interlaced winding between sub-line, make the sub-line group and the sub-line of whole power cable tamp bar combination acquisition regular circular cross section, suit and the primary insulation cover of being convenient to the secondary shielding layer are compound, and it is compound that the suit of first screen and outer layer insulation overlap.
Summary of the invention:
The sub-line that the purpose of this invention is to provide a kind of triple shielding nuclear power power cables tamps bar.
The technical scheme that the present invention takes is:
The sub-line of described a kind of triple shielding nuclear power power cables tamps bar, it is characterized in that: its cross sectional shape is combined by an external arc and two interior circular arcs, the diameter of external arc is identical with the internal diameter of secondary shielding layer, the diameter of two interior circular arcs is identical with the external diameter of sub-line screen, two interior circular arcs are circumscribed, and with the external arc inscribe.
Further, be equipped with occlusal crib on the cambered surface of circular arc on the cambered surface of external arc and in two.
Further, the space that circular arc surrounds in the external arc and two is provided with the distortion hole.
Because it is identical with the internal diameter of secondary shielding layer that the sub-line of triple shielding nuclear power power cables tamps the external arc of bar, the diameter of two interior circular arcs is identical with the external diameter of sub-line screen, two interior circular arcs are circumscribed, and with the external arc inscribe, the distribution cross section of cross sectional shape and three sub-lines coincide like this, come inclusion three root line inclusions unified with it, three root lines tamp bar and become a circular cross-section with three root line inclusions, through applicant's actual verification, it is very good to tamp effect with it as the sub-line of triple shielding nuclear power power cables, it can be regularly arranged good mutually with three root lines, prevent interlaced winding between sub-line, make the sub-line group and the sub-line of whole power cable tamp bar combination acquisition regular circular cross section, suit and the primary insulation cover of being convenient to the secondary shielding layer are compound, and it is compound that the suit of first screen and outer layer insulation overlap.
Description of drawings:
Fig. 1～Fig. 2 is two kinds of structural representations of the present invention;
The structural representation that Fig. 3 uses at triple shielding nuclear power power cables for the present invention;
Among the figure: 1-outer layer insulation cover; 2-first screen; 3-primary insulation cover; 4-secondary shielding layer; 5-insulated bus guipure; 6-line; 61-line screen; 62-line insulation guipure; 63-line sheath; The 64-wire stylet; 7-line is filled press strip; The 71-external arc; Circular arc in the 72-; The 73-occlusal crib; 74-is out of shape the hole.
Embodiment:
Below in conjunction with description of drawings the specific embodiment of the present invention:
Embodiment 1: the sub-line of described a kind of triple shielding nuclear power power cables tamps bar, as shown in Figure 1, its cross sectional shape is combined by an external arc 71 and two interior circular arcs 72, external arc 71 is identical with the internal diameter of secondary shielding layer 4, the diameter of two interior circular arcs 72 is identical with the external diameter of sub-line screen 61, two interior circular arcs 72 are circumscribed, and with external arc 71 inscribes.
The structural representation that Fig. 3 uses at triple shielding nuclear power power cables for the present invention, the nuclear power special electric power cable of described triple shieldings, it is by outer layer insulation cover 1, first screen 2, primary insulation cover 3, secondary shielding layer 4, insulated bus guipure 5, sub-line 6 and sub-line are filled press strip 7 and are formed, described sub-line 6 is by sub-line screen 61, sub-line insulation guipure 62, sub-line sheath 63 and wire stylet 64 are formed, outside wire stylet 64, be provided with sub-line sheath 63 successively, sub-line insulation guipure 62 and sub-line screen 61, the cylindrical of three root lines 6 is in contact with one another, their center is the equilateral triangle setting, three root lines are filled press strip 7 and are arranged on the formed space of three root lines, 6 contacts, make three root lines 6 and three root lines fill press strip 7 and form circular cross-section, and block by insulated bus guipure 5 nets, outside insulated bus guipure 5, be provided with secondary shielding layer 4 successively, primary insulation cover 3, first screen 2 and outer layer insulation cover 1; Described wire stylet 64 is circular copper cash bundle, and the sectional area of wire stylet 64 is 22 square millimeters, and the tubular body that sub-line screen 61 rolls for copper sheet material, the sectional area of sub-line screen 61 are wire stylet 64 sectional areas 12%; It is that 0.4 millimeter color steel rolls the tubular body that forms that first screen 2 and secondary shielding layer 4 are thickness; It is flame-proof filling material that described sub-line is filled press strip 7, and its cross sectional shape is combined by an external arc 71 and two interior circular arcs 72, and external arc 71 is identical with the internal diameter of secondary shielding layer 4, and the diameter of two interior circular arcs 72 is identical with the external diameter of sub-line screen 61; Two interior circular arc 72 circumscribed backs all with external arc 71 inscribes, described outer layer insulation cover 1, primary insulation overlap 3 and sub-line sheath 63 be fire retardant insulating rubber, insulated bus guipure 5 and the sub-line guipure 62 that insulate is fiberglass braided isometrical guipure.
Embodiment 2: on the basis of embodiment 1, be equipped with occlusal crib 73 on the cambered surface of circular arc 72 on the cambered surface of external arc 71 and in two.
Embodiment 3: on the basis of embodiment 2, the space that circular arc 72 surrounds in external arc 71 and two is provided with distortion hole 74.
Claims (3)
1. the sub-line of triple shielding nuclear power power cables tamps bar, it is characterized in that: its cross sectional shape is combined by an external arc (71) and two interior circular arcs (72), the diameter of external arc (71) is identical with the internal diameter of secondary shielding layer (4), the diameter of two interior circular arcs (72) is identical with the external diameter of sub-line screen (61), two interior circular arcs (72) are circumscribed, and with external arc (71) inscribe.
2. the sub-line according to the described triple shielding nuclear power power cables of claim 1 tamps bar, it is characterized in that: be equipped with occlusal crib (73) on the cambered surface of circular arc (72) on the cambered surface of external arc (71) and in two.
3. the sub-line according to the described triple shielding nuclear power power cables of claim 1 tamps bar, it is characterized in that: the space that circular arc (72) surrounds in the external arc (71) and two is provided with distortion hole (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106208240A CN102074295A (en) | 2010-12-29 | 2010-12-29 | Sub-line filling-pressing strip of triple shielded nuclear power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106208240A CN102074295A (en) | 2010-12-29 | 2010-12-29 | Sub-line filling-pressing strip of triple shielded nuclear power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102074295A true CN102074295A (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106208240A Pending CN102074295A (en) | 2010-12-29 | 2010-12-29 | Sub-line filling-pressing strip of triple shielded nuclear power cable |
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| CN (1) | CN102074295A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1728290A (en) * | 2004-07-31 | 2006-02-01 | 吴长全 | Extrusion forming die for cable filling strip |
| CN201527836U (en) * | 2009-10-28 | 2010-07-14 | 浙江新华电缆有限公司 | Power cable |
| CN201540769U (en) * | 2009-10-29 | 2010-08-04 | 江苏亨通电力电缆有限公司 | Cold-resistant cross-linked polyethylene insulated power cable |
| CN201904153U (en) * | 2010-12-29 | 2011-07-20 | 金坛市金鹿电缆材料有限公司 | Sub wire filling-up and holding-down strip for triplex-shielding nuclear power cable |
-
2010
- 2010-12-29 CN CN2010106208240A patent/CN102074295A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1728290A (en) * | 2004-07-31 | 2006-02-01 | 吴长全 | Extrusion forming die for cable filling strip |
| CN201527836U (en) * | 2009-10-28 | 2010-07-14 | 浙江新华电缆有限公司 | Power cable |
| CN201540769U (en) * | 2009-10-29 | 2010-08-04 | 江苏亨通电力电缆有限公司 | Cold-resistant cross-linked polyethylene insulated power cable |
| CN201904153U (en) * | 2010-12-29 | 2011-07-20 | 金坛市金鹿电缆材料有限公司 | Sub wire filling-up and holding-down strip for triplex-shielding nuclear power cable |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110525 |