CN203102996U - Low-smoke zero-halogen flame retardant longitudinal watertight and airtight power cable - Google Patents
Low-smoke zero-halogen flame retardant longitudinal watertight and airtight power cable Download PDFInfo
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- CN203102996U CN203102996U CN 201320080209 CN201320080209U CN203102996U CN 203102996 U CN203102996 U CN 203102996U CN 201320080209 CN201320080209 CN 201320080209 CN 201320080209 U CN201320080209 U CN 201320080209U CN 203102996 U CN203102996 U CN 203102996U
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Abstract
The utility model provides a low-smoke zero-halogen flame retardant longitudinal watertight and airtight power cable. The low-smoke zero-halogen flame retardant longitudinal watertight and airtight power cable is characterized in that an internal insulation made of irradiation crosslinked polyethylene is adopted by the periphery of a regular stranded tinned copper wire conductor, an external insulation made of irradiation crosslinked ethylene propylene rubber is adopted by the periphery of the internal insulation, the periphery of an external insulation is filling adhesive formed by filling the middle of a multi-core formed cable and an edge air gap with hot melt adhesive, and a low-smoke zero-halogen flame retardant polyolefin material is adopted to serve as an outer protective sleeve of the periphery of the filling adhesive. The low-smoke zero-halogen flame retardant longitudinal watertight and airtight power cable has the advantages that the grade-A burning requirement of GB/T18380.33 can be satisfied, the insulations, the protective sleeve and the filling material do not contain halogen, the content of acid gas is low, the indexes of smoke and toxicity are smaller, and the low-smoke zero-halogen low-toxicity requirements can be fully satisfied; the cable can endure the water pressure of 7.0MPa for 6 hours and the water pressure of 4.5MPa for 24 hours in the longitudinal watertight test; the cable can endure the air pressure of 0.3MPa for 30 minutes in the longitudinal airtight test; and the cable resists seawater and marine organism corrosion.
Description
Technical field
The utility model relates to vertical airtight power cable of a kind of low-smoke non-halogen flame-retardant direction waterproof and preparation technology thereof.Be applicable to electric power transfer, the illumination vertical airtight power cable of low-smoke non-halogen flame-retardant direction waterproof of electric power systems such as submarine, warship, river seagoing vessel oceangoing ship, deep diving equipment, can also be applied in the occasion that there is the direction waterproof requirement in seabed, offshore platform, massive water projects, tunnel etc.
Background technology
At present, low smoke and zero halogen naval vessel cable on the market is generally with reference to GJB 1916-1994 " naval vessel low smoke cables and flexible cord general specification " and MIL-DTL-24643 " naval vessel low smoke cables and flexible cord series closed specification ", but this class standard does not have the concrete standard of high water pressure resistant longitudinally water blocking cable, do not have relevant closed specification, and do not have anti-vertical air-tightness and sea water resistance and marine growth requirement.We are according to user's specific (special) requirements, method with reference to the correlation test among the GJB 1916-1994 " naval vessel low smoke cables and flexible cord general specification ", improved the test index of direction waterproof testing sealing, increased the test of vertical air-tightness and sea water resistance and marine growth, through verification experimental verification the reasonability of product design, can provide safer, stable, serve reliably for the user.
Summary of the invention
The utility model proposes a kind of is vertical airtight power cable of low-smoke non-halogen flame-retardant direction waterproof and preparation method thereof, with reference to GJB 1916-1994 " naval vessel low smoke cables and flexible cord general specification " and MIL-DTL-24643C 2009 " naval vessel low smoke cables and flexible cord series closed specification " development, the cable of preparation had both satisfied the direction waterproof sealing property, satisfied vertical hermetic seal and the erosion performance of anti-the marine growth again.Use the cable of this preparation technology preparation in-40 ℃～+ 85 ℃ scopes, normally to use, anti-vertical hydraulic pressure 7.0MPa, anti-vertical air pressure 0.3 MPa, sea water resistance and marine growth corrode, and satisfy low cigarette, Halogen, fire-retardant requirement.
The cable work data are as follows:
(1) the cable condition of work is: air themperature-40 ℃～+ 45 ℃, and allow in seawater, to work;
(2) the long-term permission working temperature of cable is+85 ℃;
(3) to allow bending radius be 6 times of the outside diameter of cable to the minimum during cable laying;
(4) low-smoke zero-halogen low-toxicity (insulation smoke index≤45, sheath smoke index≤25; Content of halogen≤0.2%; Insulation poison exponent≤1.5, sheath poison exponent≤5.0);
(5) direction waterproof: it is 7.0MPa that cable should be able to bear hydraulic pressure, 6h and 4.5MPa, the direction waterproof testing sealing of 24h;
(6) sea water resistance and anti-marine growth:
A) soak behind the seawater cable should be able to bear exchange 50Hz 3.5kV(2.5kV), the duration is that the withstand voltage test of 5min does not puncture; Insulation resistance (room temperature) is not less than 100M Ω .km;
B) soaking the insulation of cable behind the seawater and sheath tensile strength and reserved elongation at break should 〉=80%;
C) cable surface (surface coverage≤30%) or the marine growth of not growing on a small quantity, a small amount of marine growth should manually be removed easily, and the cable surface after removing obviously is not subjected to the marine growth depredation;
(7) vertical air-tightness: the air pressure of anti-0.3MPa, 30 minutes air tight.
Technical solution of the present utility model: the vertical airtight power cable of low-smoke non-halogen flame-retardant direction waterproof, its structure is: the periphery of adopting regular stranded tinned copper wire conductor is the interior insulation of adopting IXPE, the periphery of interior insulation is the external insulation that adopts cross-linking radiation ethylene-propylene rubber, the periphery of external insulation is the filling glue that centre behind the multicore stranding and edge voids are filled with PUR, and the periphery of filling glue is the oversheath that adopts low-smoke halide-free fireproof composite polyolefine material.
The periphery of described filling glue is the armouring that adopts the tinned copper wire braid shielded, and the periphery of armouring is the oversheath that adopts low-smoke halide-free fireproof composite polyolefine material.
The preparation method of the vertical airtight power cable of low-smoke non-halogen flame-retardant direction waterproof is characterized in that this method comprises following processing step,
One, with electric wire cable strand machine stranded tinned copper wire as conductor, adopt automation, injecting glue technology continuously simultaneously, by the injecting glue mould glue is filled into space between the stranded conductor, and the unnecessary colloid that conductor is outer strikes off;
Two, treat that colloid solidifies after, use extruder equipment, adopt the squash type technology to extrude one deck cross-linking polyethylene materials as interior insulation, one deck ethylene-propylene rubber material is extruded again as external insulation in the insulation outside in crosslinked polyethylene, and two-layer insulation is crosslinked as insulating barrier through electron accelerator irradiation;
Three, with the stranded insulated wire cores of cabler, the space adopts PUR to inject filling as filling glue between core, on stranding equipment, is equipped with heating heat injection melten gel equipment when stranded; To thoroughly do away with edge core stranding more, and adopt at the heating heat injection melten gel equipment on the stranding equipment glue PUR is filled space between the insulated wire cores, and adopt extruder extruding and hot melting glue to fill peripheral space and rounding outward appearance;
Four, extrude one deck PUR outside the cable of employing extruder behind stranding, adopt the braiding machine woven shield as armouring then, adopt automation, continuous injecting glue technology, with the bakelite mould glue is filled into space between the tinned copper wire by injecting glue, and adopts Frictioning device to strike off unnecessary colloid;
Five, use extruder equipment, adopt the squash type technology to extrude low-smoke halide-free fireproof composite polyolefine material, and crosslinked through electron accelerator irradiation as restrictive coating.
The utlity model has following characteristics:
1) special preparation technology: the stranded operation of cable conductor, knitting process adopts automation, injecting glue technology continuously, by mould glue is filled space between the tinned copper wire, and adopts Frictioning device to strike off
Unnecessary colloid adopts PUR to fill middle and edge voids, guarantees cable rounding consolidation, direction waterproof, vertically airtight.
2) direction waterproof sealing property: cable should be able to bear the direction waterproof testing sealing that hydraulic pressure is 7.0MPa6h and 4.5MPa24h.
3) sea water resistance and anti-marine growth:
A) soak behind the seawater cable should be able to bear exchange 50Hz 3.5kV(2.5kV), the duration is that the withstand voltage test of 5min does not puncture; Insulation resistance (room temperature) is not less than 100M Ω .km;
B) soaking the insulation of cable behind the seawater and sheath tensile strength and reserved elongation at break should 〉=80%;
C) cable surface (surface coverage≤30%) or the marine growth of not growing on a small quantity, a small amount of marine growth should manually be removed easily, and the cable surface after removing obviously is not subjected to the marine growth depredation.
4) vertical air-tightness: it is 0.3MPa that cable should be able to bear air pressure, vertical hermetic seal test of 30 minutes.
5) low-smoke zero-halogen low-toxicity: cable adopts the low-smoke zero-halogen low-toxicity material, produces toxic gas and dense smoke when fire takes place hardly.
Description of drawings
Accompanying drawing 1 is the structural representation of the embodiment 1 of the vertical airtight power cable of low-smoke non-halogen flame-retardant direction waterproof.
Accompanying drawing 2 is structural representations of the embodiment 2 of the vertical airtight power cable of low-smoke non-halogen flame-retardant direction waterproof.
Among the figure 1 is conductor; The 2nd, interior insulation; The 3rd, external insulation; The 4th, fill glue; The 5th, armouring; The 6th, oversheath.
Embodiment
Contrast Fig. 1, its structure is to comprise conductor 1; Interior insulation 2; External insulation 3; Fill glue 4; Oversheath 6, wherein the periphery of conductor 1 is interior insulation 2; The periphery of interior insulation 2 is external insulations 3; The periphery of external insulation 3 is to fill glue 4; The periphery of filling glue 4 is oversheaths 6.
With the stranded multiply tin-coated copper of electric wire cable strand machine monofilament as conductor 1 and adopt automation, continuously injecting glue technology is filled.
Adopt the squash type technology to extrude crosslinked polyethylene, and crosslinked through electron accelerator irradiation as inner insulating layer 2.
Adopt the squash type technology to extrude coupling ethylene propylene rubber, and crosslinked through electron accelerator irradiation as external insulation layer 3.
Adopt thermosol filling centre and edge voids as filling glue 4.
Squash type is extruded low smoke halogen-free flame-retardant polyolefin, and crosslinked as restrictive coating 6 through electron accelerator irradiation.
The preparation method that it is concrete comprises following technology,
As conductor 1, adopt automation, continuous injecting glue technology with the stranded tinned copper wire of electric wire cable strand machine simultaneously, by mould glue is filled space between the stranded conductor, and the unnecessary colloid that conductor is outer uses Frictioning device to strike off; Use extruder equipment, adopt the squash type technology to extrude crosslinked polyethylene, adopt the squash type technology to extrude ethylene-propylene rubber as external insulation 3 as interior insulation 2, and crosslinked through electron accelerator irradiation as interior external insulation layer; With cabler insulated electric conductor is twisted together, adopt the heating heat injection melten gel equipment (having now) that is equipped with on the stranding equipment that the space between the glue PUR filling insulated wire cores is filled 4 as PUR, adopt extruder extruding and hot melting glue to fill peripheral space and rounding outward appearance behind the stranding; Adopt automation, injecting glue technology continuously, by mould glue is filled space between the tinned copper wire, and adopt Frictioning device to strike off unnecessary colloid; Use extruder equipment, adopt the squash type technology to extrude low-smoke halide-free fireproof composite polyolefine material, and crosslinked through electron accelerator irradiation as restrictive coating 6.
Contrast Fig. 2, its structure is to comprise conductor 1; Interior insulation 2; External insulation 3; Fill glue 4; Armouring 5; Oversheath 6, wherein the periphery of conductor 1 is interior insulation 2; The periphery of interior insulation 2 is external insulations 3; The periphery of external insulation 3 is to fill glue 4; The periphery of filling glue 4 is armourings 5; The periphery of armouring 5 is oversheaths 6.
With the stranded multiply tin-coated copper of electric wire cable strand machine monofilament as conductor 1, and adopt automation, injecting glue technology is filled continuously.
Adopt the squash type technology to extrude crosslinked polyethylene, and crosslinked through electron accelerator irradiation as inner insulating layer 2.
Adopt the squash type technology to extrude coupling ethylene propylene rubber, and crosslinked through electron accelerator irradiation as external insulation layer 3.
Adopt thermosol filling centre and edge voids as filling glue 4.
As armouring 5, and adopt automation, injecting glue technology continuously with the shielding of braiding machine braiding tinned copper wire, glue is filled space between the tinned copper wire, adopt Frictioning device to strike off unnecessary colloid by mould;
Squash type is extruded low smoke halogen-free flame-retardant polyolefin, and crosslinked as restrictive coating 6 through electron accelerator irradiation.
The preparation method that it is concrete comprises following technology,
As conductor 1, adopt automation, continuous injecting glue technology with the stranded tinned copper wire of electric wire cable strand machine simultaneously, by mould glue is filled space between the stranded conductor, and the unnecessary colloid that conductor is outer uses Frictioning device to strike off; Use extruder equipment, adopt the squash type technology to extrude crosslinked polyethylene, adopt the squash type technology to extrude ethylene-propylene rubber as external insulation 3 as interior insulation 2, and crosslinked through electron accelerator irradiation as interior external insulation layer; With cabler insulated electric conductor is twisted together, adopt the heating heat injection melten gel equipment (having now) that is equipped with on the stranding equipment that the space between the glue PUR filling insulated wire cores is filled 4 as PUR, as armouring 5, adopt extruder extruding and hot melting glue to fill peripheral space and rounding outward appearance with the shielding of braiding machine braiding tinned copper wire behind the stranding; Adopt automation, injecting glue technology continuously, by mould glue is filled space between the tinned copper wire, and adopt Frictioning device to strike off unnecessary colloid; Use extruder equipment, adopt the squash type technology to extrude low-smoke halide-free fireproof composite polyolefine material, and crosslinked through electron accelerator irradiation as restrictive coating 6.
Claims (2)
1. the vertical airtight power cable of low-smoke non-halogen flame-retardant direction waterproof, its feature: the periphery of adopting regular stranded tinned copper wire conductor is the interior insulation of adopting IXPE, the periphery of interior insulation is the external insulation that adopts cross-linking radiation ethylene-propylene rubber, the periphery of external insulation is the filling glue that centre behind the multicore stranding and edge voids are filled with PUR, and the periphery of filling glue is the oversheath that adopts low-smoke halide-free fireproof composite polyolefine material.
2. the vertical airtight power cable of low-smoke non-halogen flame-retardant direction waterproof according to claim 1, the periphery that it is characterized in that filling glue are the armourings that adopts the tinned copper wire braid shielded, and the periphery of armouring is the oversheath that adopts low-smoke halide-free fireproof composite polyolefine material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320080209 CN203102996U (en) | 2013-02-21 | 2013-02-21 | Low-smoke zero-halogen flame retardant longitudinal watertight and airtight power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320080209 CN203102996U (en) | 2013-02-21 | 2013-02-21 | Low-smoke zero-halogen flame retardant longitudinal watertight and airtight power cable |
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| CN203102996U true CN203102996U (en) | 2013-07-31 |
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| CN 201320080209 Expired - Lifetime CN203102996U (en) | 2013-02-21 | 2013-02-21 | Low-smoke zero-halogen flame retardant longitudinal watertight and airtight power cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117126A (en) * | 2013-02-21 | 2013-05-22 | 南京全信传输科技股份有限公司 | Low-smoke halogen-free flame retardant longitudinal watertight longitudinal airtight power cable and manufacturing method thereof |
| CN104916375A (en) * | 2015-05-08 | 2015-09-16 | 芜湖航天特种电缆厂 | Ultra-high density knitting method |
| CN106125235A (en) * | 2016-08-23 | 2016-11-16 | 南京全信传输科技股份有限公司 | Steel-tape armouring formula multi-core fiber watertight type optical cable and preparation method thereof |
| CN112562895A (en) * | 2020-12-01 | 2021-03-26 | 天长市富信电子有限公司 | Screen wire and twisting method thereof |
-
2013
- 2013-02-21 CN CN 201320080209 patent/CN203102996U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117126A (en) * | 2013-02-21 | 2013-05-22 | 南京全信传输科技股份有限公司 | Low-smoke halogen-free flame retardant longitudinal watertight longitudinal airtight power cable and manufacturing method thereof |
| CN104916375A (en) * | 2015-05-08 | 2015-09-16 | 芜湖航天特种电缆厂 | Ultra-high density knitting method |
| CN104916375B (en) * | 2015-05-08 | 2016-09-28 | 芜湖航天特种电缆厂股份有限公司 | The production method of cable |
| CN106125235A (en) * | 2016-08-23 | 2016-11-16 | 南京全信传输科技股份有限公司 | Steel-tape armouring formula multi-core fiber watertight type optical cable and preparation method thereof |
| CN112562895A (en) * | 2020-12-01 | 2021-03-26 | 天长市富信电子有限公司 | Screen wire and twisting method thereof |
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Granted publication date: 20130731 |
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| CX01 | Expiry of patent term |