CN206711629U

CN206711629U - A kind of resistance to irradiation multicore shielding control composite cable

Info

Publication number: CN206711629U
Application number: CN201720374061.3U
Authority: CN
Inventors: 张凤华; 李兆楠; 李伟; 王丽丽; 华鑫; 郭伟媛; 崔萍; 夏洁荣
Original assignee: TIANJIN ANXUNTONG CABLE CO Ltd
Current assignee: TIANJIN ANXUNTONG CABLE CO Ltd
Priority date: 2017-04-11
Filing date: 2017-04-11
Publication date: 2017-12-05
Anticipated expiration: 2027-04-11

Abstract

The utility model, which is created, provides a kind of resistance to irradiation multicore shielding control composite cable, including pair twist screen unit cable (1), shielding single line (2), polyester aluminium laminated film screen layer (3), nickel plating shielding layer of copper wires IV (4), sheath (5), pair twist screen unit cable (1), shielding single line (2) twists and bunchy, and outer a strata ester aluminium laminated film screen layer (3), one layer of nickel plating shielding layer of copper wires IV (4), E1 grade irradiations crosslinking low-smoke and halogen-free flame retardant polyolefin jacket (5) in one layer of used in nuclear power station shell are sequentially provided with it.The utility model create beneficial effect be：The cable has excellent electric property and mechanical and physical performance, and has that resistant to chemical etching, acid and alkali-resistance is oily, anti-heavy dose of electron radiation, electromagnetism interference, when there is burning smoke density it is low, without the excellent characteristics such as poisonous halogen acid gas release, nonflammable.

Description

A kind of resistance to irradiation multicore shielding control composite cable

Technical field

The invention is related to resistance to irradiation multicore shielding control composite cable, is that one kind includes data transfer, signal controls The integrated composite cable for being used for resistance to strong electron radiation.

Background technology

The common multicore shielding of resistance to irradiation control composite cable is primarily present following defect in the prior art：(1) in cable The single diameter of conductor uses multiply 0.2mm tough pitch copper bunch more, and electric property is slightly poor, and it is oxidizable easily to break, and reduces cable and uses Life-span；(2) proof copper-wire braided, count 80%, this count is more lax, and shield effectiveness is not high, electromagnetism interference energy Power is not high, and the copper wire of tough pitch copper easily aoxidizes；(3) polythene material to be insulated in cable using common individual layer, and the polyethylene Though material chemical property is good, resist cold, radiation hardness, temperature grade is relatively low, is easily cracked by environmental stress, is not suitable for environment evil It is bad, such as highly corrosive, the occasion of strong electron irradiation requirement；(4) sheath uses common low smoke halogen-free flame-retardant polyolefin material in cable Material, though and the material is not suitable for resistance to big irradiation dose, the high field of flame-retardancy requirements with good environmental resistance Close.

The content of the invention

In view of the shortcomings of the prior art, this practicality provides a kind of multicore and combines the construction of cable more, and the cable has Excellent electric property and mechanical and physical performance, and have that resistant to chemical etching, acid and alkali-resistance is oily, anti-heavy dose of electron radiation, anti-electromagnetism Interference, the excellent characteristics such as smoke density is low when having burning, is discharged without poisonous halogen acid gas, be nonflammable.

In order to solve the above technical problems, the technical scheme that the invention uses is：

A kind of resistance to irradiation multicore shielding control composite cable, including pair twist screen unit cable (1), shielding single line (2), polyester Aluminium laminated film screen layer (3), nickel plating shielding layer of copper wires IV (4), sheath (5), pair twist screen unit cable (1), shielding single line (2) Strand and bunchy, a strata ester aluminium laminated film screen layer (3), one layer of nickel plating shielding layer of copper wires IV (4), one are sequentially provided with outside it E1 grade irradiations crosslinking low-smoke and halogen-free flame retardant polyolefin jacket (5) in layer used in nuclear power station shell.

Further, described a kind of resistance to irradiation multicore shielding control composite cable, including 2 × 0.35mm²Pair twist shielding is single First cable (1), 0.50mm²Shield single line (2), polyester aluminium laminated film screen layer (3), nickel plating shielding layer of copper wires IV (4), sheath (5), 20 groups of 2 × 0.35mm²Pair twist screen unit cable (1), 1 group of 0.50mm²Single line (2) strand and bunchy are shielded, is set successively outside it There are a strata ester aluminium laminated film screen layer (3), one layer of nickel plating shielding layer of copper wires IV (4), E1 level spokes in one layer of used in nuclear power station shell According to crosslinking low-smoke and halogen-free flame retardant polyolefin jacket (5).

Further, 2 × 0.35mm²The structure of pair twist screen unit cable (1) is, in the silver-plated (1- of copper conductor I of 19 0.16mm 1) wrapped one layer of double-sided polyimide film I (1-2) outside, then extrude one layer of crosslinked polyetylene insulated layer I (1-3) and form combined type Insulated single wire I, two pair twists of insulated single wire I, in the nickel plating shielding layer of copper wires I (1-4) of its one layer of not low 95% density of outer braiding.

Further, 0.50mm²The structure of shielding single line (2) is, wrapped outside the silver-plated copper conductors II (2-1) of 26 0.16mm One layer of double-sided polyimide film II (2-2), then extrude one layer of crosslinked polyetylene insulated layer II (2-3) and form combined type insulation list Line II, in the nickel plating shielding layer of copper wires II (2-4) of its one layer of not low 95% density of outer braiding.

The invention has the advantages and positive effects of：

(1)0.35mm²Conductor use 19 strands of filament diameters to be twisted for 0.16mm silver-coated copper wires, 0.50mm²Conductor 26 strands of filament diameters are used to be twisted for 0.16mm silver-coated copper wires so that conductor overall structure is soft and is not easily broken；In addition, Silver-plated copper conductor specific insulation is low, and decay is small, it is not easy to aoxidizes, good bending property, ring is omited suitable for evils such as high temperature, humidities Border, while be easy to weld；

(2) the braiding brass wire shielding of cable uses nickel plating proof copper-wire braided, and count is not less than 95%, is shielded in high density Under the protection of layer, there is interference performance of the extraneous electromagnetism of good protection to cable, while to stopping the spoke of accelerator leakage Illuminated line has certain protective action；

(3) insulated using wrapped one layer of double-sided polyimide and extrude one layer of crosslinked polyetylene insulated combined type insulation and tied Structure, single line have excellent high temperature resistant, resistance to heavy dose of electron irradiation performance, and this layer insulation is protected for the first layer of conductor, but poly- Imide membrane is wrapped to be needed to pass through high temperature sintering so that film blocking forms insulating barrier, and the mechanical strength of this structure compares Difference, for cable after frequently mechanical bend, film seam has the risk of cracking, the inadequate consolidation of insulation system of this individual layer, needs Extrude one layer of crosslinked polyethylene external insulation, insulating materials melt flow rate (MFR), molecular weight distribution, excellent insulation performance, be easy to Machine-shaping, the characteristic for equally having good radiation-resistant property, so the defects of first layer insulation system can be made up；

(4) jacket material of cable uses core level cross-linking low smoke halogen-free fire retardant polyolefin, the nuclear power station of core level security level It is saturating that smog is produced when can effectively prevent cable from prolonging combustion with E1 grade irradiations crosslinking low-smoke and halogen-free flame retardant polyolefin jacket in shell, and burn Light rate is not less than 60%, and evolved gas acidity pH value is not more than 4.5, resistance to electron radiation, improves cable in severe irradiation ring (3MGy) long-term use of security in border；In addition, the material is required to carry out electron irradiation with accelerator facility, cable it is resistance to Warm grade can be long-term use of under 125 DEG C of environment；Secondly, the sheath material is formulated using softness, is manufactured Cable pliability is good, and bending radius is high, and user is time saving and energy saving when installing and using.

Brief description of the drawings

Fig. 1 is the structural representation of the invention；

Fig. 2 is 2 × 0.35mm of the invention²The structural representation of pair twist screen unit cable；

Fig. 3 is the invention 0.50mm²Shield the structural representation of single line.

In figure：1st, pair twist screen unit cable, 1-1, silver-plated copper conductor I, 1-2, double-sided polyimide film I, 1-3, crosslinking Polyethylene layer I, 1-4, nickel plating shielding layer of copper wires I, 2, shielding single line, 2-1, silver-plated copper conductor II, 2-2, two-sided polyimide Amine film II, 2-3, crosslinked polyetylene insulated layer II, 3, polyester aluminium laminated film screen layer, 4, nickel plating shielding layer of copper wires IV, 5, Sheath.

Embodiment

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the invention can To be mutually combined.

In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are Based on orientation shown in the drawings or position relationship, it is for only for ease of description the invention and simplifies description, rather than instruction Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that For the limitation to the invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined Feature can express or implicitly include one or more this feature.In the description of the invention, unless separately It is described, " multiple " are meant that two or more.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the invention Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition State concrete meaning of the term in the invention.

Describe the invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in figure 1, a kind of described resistance to irradiation multicore shielding control composite cable, including 2 × 0.35mm²Pair twist shields Unit cable 1,0.50mm²Shield single line 2, polyester aluminium laminated film screen layer 3, nickel plating shielding layer of copper wires IV4,5,20 group 2 of sheath ×0.35mm²1,1 group of 0.50mm of pair twist screen unit cable²Shielding single line 2 twists and bunchy, and a strata ester aluminium is sequentially provided with outside it 3, one layers of nickel plating shielding layer of copper wires IV4 of laminated film screen layer, one layer of core level security level used in nuclear power station shell in E1 grade irradiations hand over Join low-smoke and halogen-free flame retardant polyolefin jacket 5.

As shown in Fig. 22 × 0.35mm²The structure of pair twist screen unit cable 1 is, in the silver-plated 1- of copper conductor I of 19 0.16mm Wrapped one layer of double-sided polyimide film I 1-2 outside 1, then extrude one layer of crosslinked polyetylene insulated 1-3 of layer I and form combined type insulation Single line I, two pair twists of insulated single wire I, in the 1-4 of nickel plating shielding layer of copper wires I of its one layer of not low 95% density of outer braiding.

As shown in figure 3,0.50mm²The structure of shielding single line 2 is, wrapped outside the silver-plated 2-1 of copper conductor II of 26 0.16mm One layer of 2-2 of double-sided polyimide film II, then extrude one layer of crosslinked polyetylene insulated 2-3 of layer II and form combined type insulated single wire II, in the 2-4 of nickel plating shielding layer of copper wires II of its one layer of not low 95% density of outer braiding.

One embodiment of the invention is described in detail above, but the content is only the invention Preferred embodiment, it is impossible to be considered as the practical range for limiting the invention.It is all to be made according to the invention application range Equivalent change with improve etc., all should still belong within the patent covering scope of the invention.

Claims

A kind of 1. resistance to irradiation multicore shielding control composite cable, it is characterised in that：It is single including pair twist screen unit cable (1), shielding Line (2), polyester aluminium laminated film screen layer (3), nickel plating shielding layer of copper wires IV (4), sheath (5), pair twist screen unit cable (1), Single line (2) strand and bunchy are shielded, a strata ester aluminium laminated film screen layer (3), one layer of nickel plating copper wire screen are sequentially provided with outside it Cover a layer IV (4), E1 grade irradiations crosslinking low-smoke and halogen-free flame retardant polyolefin jacket (5) in one layer of used in nuclear power station shell.
2. the resistance to irradiation multicore shielding control composite cable of one kind according to claim 1, it is characterised in that：

The pair twist screen unit cable (1) is 2 × 0.35mm²Pair twist screen unit cable；

The shielding single line (2) is 0.50mm²Shield single line；

20 groups of 2 × 0.35mm²Pair twist screen unit cable (1), 1 group of 0.50mm²Shield single line (2) strand and bunchy.
3. the resistance to irradiation multicore shielding control composite cable of one kind according to claim 2, it is characterised in that：2×0.35mm² The structure of pair twist screen unit cable (1) is that wrapped one layer of double-sided polyimide is thin outside 19 silver-plated copper conductors of 0.16mm (1-1) Film I (1-2), then extrude one layer of crosslinked polyetylene insulated layer I (1-3) and form combined type insulated single wire I, two insulated single wires I are right Twist, in the nickel plating shielding layer of copper wires I (1-4) of its one layer of not low 95% density of outer braiding.
4. the resistance to irradiation multicore shielding control composite cable of one kind according to claim 2, it is characterised in that：0.50mm²Shielding The structure of single line (2) is wrapped one layer of double-sided polyimide film II (2-2) outside 26 silver-plated copper conductors of 0.16mm (2-1), One layer of crosslinked polyetylene insulated layer II (2-3) is extruded again and forms combined type insulated single wire II, in its outer one layer not low 95% of braiding The nickel plating shielding layer of copper wires II (2-4) of density.