CN218849155U - Cross-linked PE insulated multilayer shielding anti-ultraviolet low-smoke halogen-free offshore platform communication cable - Google Patents
Cross-linked PE insulated multilayer shielding anti-ultraviolet low-smoke halogen-free offshore platform communication cable Download PDFInfo
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- CN218849155U CN218849155U CN202222605308.1U CN202222605308U CN218849155U CN 218849155 U CN218849155 U CN 218849155U CN 202222605308 U CN202222605308 U CN 202222605308U CN 218849155 U CN218849155 U CN 218849155U
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- 239000000779 smoke Substances 0.000 title claims abstract description 30
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 239000011295 pitch Substances 0.000 claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 9
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 7
- 238000009941 weaving Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 3
- 150000002367 halogens Chemical class 0.000 claims abstract description 3
- 229920000728 polyester Polymers 0.000 claims description 21
- 239000002131 composite material Substances 0.000 claims description 13
- 229920003023 plastic Polymers 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
- 239000004698 Polyethylene Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 239000003063 flame retardant Substances 0.000 claims description 10
- 229920000098 polyolefin Polymers 0.000 claims description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 6
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 6
- 239000008397 galvanized steel Substances 0.000 claims description 6
- 239000011810 insulating material Substances 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 230000006750 UV protection Effects 0.000 abstract description 5
- 238000004132 cross linking Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 9
- 238000009954 braiding Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004033 diameter control Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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Abstract
The utility model provides a cross-linking PE insulation multilayer shielding prevents ultraviolet low smoke and zero halogen offshore platform communication cable which the structure is: a cable core is formed by twisting a plurality of pairs of screen wire groups; the cable core is filled with filler; the cable core is sequentially coated with a third wrapping layer, a main shielding layer, an inner sheath, an armor weaving layer and an outer sheath; each pair of split screen line groups is formed by twisting 2 wire cores, and the pitches of the adjacent twisted line groups are different; the structure of each wire core is as follows: the wire core conductor, the fire-resistant layer and the insulating layer are arranged from inside to outside in sequence; each pair of split screen wire sets is sequentially provided with a first wrapping layer, a split shielding layer and a second wrapping layer from inside to outside. The cable has good shielding property and ultraviolet resistance, can prevent electromagnetic interference and accurately transmit information.
Description
Technical Field
The technical scheme belongs to the technical field of cables, and particularly relates to a communication cable for a cross-linked polyethylene insulation multilayer shielding anti-ultraviolet low-smoke halogen-free offshore platform.
Background
The offshore platform has limited space, and various required instrument cables and electric wires and cables for electric equipment are often laid together. Therefore, the communication cable used by the offshore platform is required to have good shielding and anti-interference performances, so that the external electromagnetic interference can be effectively resisted, and the deviation and fluctuation of signal transmission are avoided.
Meanwhile, the cable is placed on an offshore platform for a long time, the sunlight is strong, no shielding object is arranged around the platform, and the cable is placed under the sunlight for a long time every day, so that the requirement on the cable is increasingly high; under the environment, how to meet the requirements of strong shielding, ultraviolet resistance and oil resistance of the marine cable on the basis of ensuring the basic functions of the cable is a technical problem to be solved.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a low smoke and zero halogen offshore platform communication cable is prevented ultraviolet by insulating multilayer shielding of crosslinked PE, the external diameter scope of cable is 24.0mm ~ 28.0mm.
The structure is as follows: the cable core is formed by twisting a plurality of pairs of screen wire groups, and the ratio of the twisting pitch diameter is 20-30 times; PP ropes are filled in the cable cores; the cable core is sequentially coated with a third wrapping layer 8 (polyester tape), a total shielding layer 9, an inner sheath 10, an armor braid 11 and an outer sheath 12;
each pair of split screen line groups is formed by twisting 2 wire cores, and the pitches of the adjacent twisted line groups are different; the structure of each wire core is as follows: the cable core conductor, the fire-resistant layer, the insulating layer and the sub-shielding layer are sequentially arranged from inside to outside;
every has 2 sinle silks to dividing screen group, and every structure of every pair of group is: the core conductor, the fire-resistant layer, the insulating layer and the sub-shielding layer are arranged from inside to outside in sequence;
the core conductor is a 2 nd type tinned copper conductor, each conductor is formed by stranding tinned copper wire monofilaments, the stranding direction is the left direction, and the pitch-diameter ratio is controlled to be 12-20 times; the nominal diameter range of the tinned copper wire monofilament is 0.520 mm-0.525 mm; diameter range of the core conductor: 1.57 mm-1.63 mm;
the fireproof layer is formed by overlapping and wrapping two layers of double-sided synthetic white mica tapes, the overlapping rate is not less than 25%, the wrapping direction is opposite to the twisting direction of the conductor core, and the thickness control range is 0.12-0.16 mm.
The insulating layer is made of cross-linked polyethylene insulating materials, the average thickness control requirement of the insulating layer is not more than 0.69mm, the thickness of the thinnest part is not less than 0.38mm, and the eccentricity is not more than 25%; the maximum temperature of the cable in normal operation can reach 90 ℃ by adopting the crosslinked polyethylene insulating material.
The split screen line group is formed by twisting two wire cores in pairs, the twisting pitch is not more than 150mm, and the adjacent split screen line groups adopt different pitches, so that the effects of offsetting crosstalk between adjacent wire pairs and reducing interference from the outside are achieved.
A first wrapping layer (overlapped wrapping polyester tapes) is arranged outside the split screen wire group, and the thickness control range of the polyester tapes is between 0.038mm and 0.040 mm; the polyester tape serves to protect the insulating layer and ensures that the insulating layer is not damaged by the shielding layer.
The sub-shielding layer is composed of an aluminum-plastic composite belt, and the thickness control range of the aluminum-plastic composite belt is between 0.045mm and 0.055 mm; the aluminum-plastic composite belt is used as a sub-shielding layer, so that each pair of line groups is prevented from being subjected to electromagnetic interference with each other and the outside.
The secondary shielding layer is externally provided with a second wrapping layer (overlapping wrapping polyester tape), and the thickness control range of the polyester tape is between 0.038mm and 0.040 mm; the polyester tape lapping is used for ensuring the insulation resistance between the sub-shields.
The filling layer is formed by low-smoke halogen-free filling strips and PP ropes, the sides of the filling strips are arranged at the center of the filling layer, and the PP ropes are adopted, so that the round and compact cable core structure after cabling is ensured.
A third lapping layer (a lapping polyester belt) is arranged outside the cable, and the thickness control range of the polyester belt is between 0.038mm and 0.040 mm; the polyester tape lapping is used for ensuring the insulation resistance between the partial shield and the total shield.
The total shielding layer is composed of an aluminum-plastic composite belt, and the thickness control range of the aluminum-plastic composite belt is between 0.045mm and 0.055 mm; the aluminum-plastic composite belt is used as a sub-shielding layer, so that all the wire groups are prevented from being subjected to external electromagnetic interference.
The inner sheath is made of a low-smoke halogen-free flame-retardant oil-resistant cross-linked polyolefin sheath material, the average thickness of the inner sheath is not more than 1.50mm and the thickness of the thinnest part is not less than 0.84mm according to the calculation of IEC60092-376 standard requirements; the insulating layer can be protected from moisture and mechanical damage.
The armor braid is a galvanized steel wire braid, the diameter control range of the braided wire is between 0.295mm and 0.30mm, and the braiding coverage rate is not less than 90 percent; the galvanized steel wire braided layer improves the mechanical strength and tensile action of the cable.
The outer sheath is made of an ultraviolet-proof low-smoke halogen-free flame-retardant oil-resistant cross-linked polyolefin sheath material, and the average thickness of the outer sheath is not more than 1.25mm and the thickness of the thinnest part is not less than 0.6mm according to the IEC60092-376 standard requirement; the ultraviolet-proof low-smoke halogen-free flame-retardant oil-resistant crosslinked polyolefin sheath material can prevent the cable outer sheath from being influenced by ultraviolet rays and oil stains, and can ensure that the cable can be used for a long time in the environment of direct sunlight and oil stains.
The utility model discloses the design of cable can reach the cable and have good ultraviolet protection, performance such as resistant mineral oil after structural optimization, material optimization, under long-term electromagnetic interference, sunshine penetrate directly and the greasy dirt environment, still can ensure the signal transmission's of cable performance.
The most common outer diameter range of the present cable is 24.0mm to 28.0mm. The rated voltage is 150/250V. The idea of selecting the parameters in the technical points is to meet the requirements in the standard and to minimize the outer diameter of the cable. Reducing the outer diameter of the cable is beneficial to reducing the cost of the cable and is convenient to install and lay when in use.
The utility model discloses the design of cable is after structure and material optimization, and the cable has performance such as good ultraviolet protection, resistant mineral oil, and under long-term electromagnetic interference, sunshine penetrate directly and the greasy dirt environment, the signal transmission's of cable performance still can be ensured.
Drawings
FIG. 1 is a schematic radial cross-sectional view of the cable of this example;
in the figure: sinle silk conductor 1, flame retardant coating 2, insulating layer 3, first layer are around covering 4, divide shielding layer 5, second layer around covering 6, pack 7, the third layer around covering 8, total shielding layer 9, inner sheath 10, armor weaving layer 11, oversheath 12.
Detailed Description
The technical solution is further explained below with reference to specific embodiments as follows:
referring to fig. 1, a cross-linked PE insulated multilayer shielding anti-ultraviolet low-smoke halogen-free offshore platform communication cable has the structure: the cable core is formed by twisting a plurality of pairs of screen wire groups, and the ratio of the twisting pitch diameter is 20-30 times; the cable core is filled with filler; the cable core is sequentially coated with a third wrapping layer 8 (polyester tape), a total shielding layer 9, an inner sheath 10, an armor braid 11 and an outer sheath 12;
each pair of split screen line groups is formed by twisting 2 wire cores, and the pitches of the adjacent twisted line groups are different; the structure of each wire core is as follows: the cable core conductor 1, the fire-resistant layer 2 and the insulating layer 3 are arranged from inside to outside in sequence;
each pair of split screen wire groups is sequentially provided with a first wrapping layer 4, a split shielding layer 4 and a second wrapping layer 5 from inside to outside;
the core conductor 1 is a 2 nd type tin-plated copper conductor, and is formed by stranding single wires of tin-plated copper wires, the stranding direction is the left direction, and the stranding pitch diameter ratio is 12-20 times; the nominal diameter range of the tinned copper wire monofilament is 0.520 mm-0.525 mm; the diameter range of the core conductor is 1.57 mm-1.63 mm;
the fireproof layer 2 is formed by overlapping and wrapping two layers of double-sided synthetic white mica tapes, the overlapping rate is not less than 25%, and the wrapping direction is opposite to the twisting direction of the conductor of the wire core;
the insulating layer 3 is made of cross-linked polyethylene insulating materials, the average thickness of the insulating layer is not more than 0.69mm, the thickness of the thinnest part is not less than 0.38mm, and the eccentricity is not more than 25%;
a second wrapping layer 4 is wrapped outside the split screen wire group, and the second wrapping layer 4 is formed by overlapping and wrapping polyester tapes;
the sub-shielding layer 5 is formed by longitudinally wrapping an aluminum-plastic composite belt;
the second wrapping layer 6 is formed by overlapping and wrapping polyester tapes;
the filler 7 comprises a low-smoke halogen-free filler strip and a PP rope; the low-smoke halogen-free filling strip is arranged at the axis position of the cable, and the PP rope is filled in other positions of the cable;
the third lapping layer 8 is formed by lapping polyester tapes in an overlapping way;
the total shielding layer 9 is formed by longitudinally wrapping an aluminum-plastic composite belt;
the inner sheath 10 is made of low-smoke halogen-free flame-retardant oil-resistant cross-linked polyolefin sheath material, the average thickness of the inner sheath is not more than 1.50mm, and the thickness of the thinnest part is not less than 0.84mm;
the armor braid layer 11 is formed by weaving galvanized steel wires, and the weaving coverage rate is not less than 90%;
the outer sheath 12 is made of an ultraviolet-proof low-smoke halogen-free flame-retardant oil-resistant cross-linked polyolefin sheath material, the average thickness of the outer sheath 12 is not more than 1.25mm, and the thickness of the thinnest part is not less than 0.6mm.
The cable has good shielding property and ultraviolet resistance, can prevent electromagnetic interference and accurately transmit information.
The cable in this example, a cable rated at 150/250V, has a conductor cross-sectional area of 1.5mm 2 The cable core is formed by twisting 5 pairs of split screen wire groups, and the twisting pitch of each pair of split screen wire groups is not more than 150mm.
The outer diameter of the cable is 24.0 mm-28.0 mm;
the structure of the core conductor 1 is as follows: the diameter of each single 7 tinned copper monofilaments is 0.52mm; the nominal diameter of the conductor is 1.6mm.
The double-sided synthetic white mica tape of the fire-resistant layer 2 has a nominal thickness of 0.14mm, and the overlapping rate is not less than 25%;
the nominal thickness of the insulating layer 3 is 0.6mm, and the thickness of the thinnest part is not less than 0.38mm; the insulating layer is made of crosslinked polyethylene insulating material (the grade/model can be YJG-1);
the nominal thickness of the polyester tape of the first wrapping layer 4 is 0.04mm, and the overlapping rate is not less than 25%;
the nominal thickness of the aluminum-plastic composite belt of the sub-shielding layer 5 is 0.05mm, and the overlapping rate is not less than 25 percent;
the nominal thickness of the polyester tape of the second wrapping layer 6 is 0.04mm, and the overlapping rate is not less than 25%;
the outer diameter of the low-smoke halogen-free filling strip in the filling 7 is 5.8 mm-6.2 mm, and the side is filled with 5 PP ropes;
the nominal thickness of the polyester tape of the third wrapping layer 8 is 0.04mm, and the overlapping rate is not less than 25%;
the nominal thickness of the aluminum-plastic composite belt of the total shielding layer 9 is 0.05mm, and the overlapping rate is not less than 25%;
the nominal thickness of the inner sheath 10 is 1.3mm, the thinnest part is not less than 0.84mm; the inner sheath 10 is made of low-smoke halogen-free flame-retardant oil-resistant cross-linked polyolefin sheath material (the grade/model can be FHW-90C);
the braiding coverage rate of the armor braid 11 is not less than 90%, and the armor braid is formed by braiding galvanized steel wires with the wire diameter of 0.30 mm;
the nominal thickness of the outer sheath 12 is 1.0mm, the thinnest point being no less than 0.60mm; the outer sheath 12 is made of ultraviolet-proof low-smoke halogen-free flame-retardant oil-proof cross-linked polyolefin sheath material (the type/brand can be FWH-90 (X202H-FU/NY)).
The basic electrical performance test parameters satisfied by the communication cable of the present example are as follows:
Claims (8)
1. the utility model provides a cross-linked PE insulation multilayer shielding prevents ultraviolet low smoke and zero halogen offshore platform communication cable, characterized by structure is: the cable core is formed by twisting a plurality of pairs of screen wire groups, and the ratio of the twisting pitch diameter is 20-30 times; the cable core is filled with filler; the cable core is sequentially coated with a third wrapping layer, a main shielding layer, an inner sheath, an armor weaving layer and an outer sheath;
each pair of split screen line groups is formed by twisting 2 wire cores, and the pitches of the adjacent twisted line groups are different; the structure of each wire core is as follows: the cable core conductor, the fire-resistant layer and the insulating layer are arranged from inside to outside in sequence;
each pair of split screen wire groups is sequentially provided with a first wrapping layer, a split shielding layer and a second wrapping layer from inside to outside;
the core conductor is a 2 nd tin-plated copper conductor, and is formed by twisting single tin-plated copper wires, the twisting direction is the left direction, and the twisting pitch-diameter ratio is 12-20 times; the nominal diameter range of the tinned copper wire monofilament is 0.520 mm-0.525 mm; the diameter range of the core conductor is 1.57 mm-1.63 mm;
the fireproof layer is formed by overlapping and wrapping two layers of double-sided synthetic white mica tapes, the overlapping rate is not less than 25%, and the wrapping direction is opposite to the twisting direction of the conductor of the wire core;
the insulating layer is made of cross-linked polyethylene insulating materials, the average thickness of the insulating layer is not more than 0.69mm, the thickness of the thinnest part is not less than 0.38mm, and the eccentricity is not more than 25%;
a second wrapping layer is wrapped outside the split screen wire group, and the second wrapping layer is formed by overlapping and wrapping polyester tapes;
the sub-shielding layer is formed by longitudinally wrapping an aluminum-plastic composite belt;
the second wrapping layer is formed by overlapping and wrapping polyester tapes;
the filler comprises a low-smoke halogen-free filler strip and a PP rope; the low-smoke halogen-free filling strip is arranged at the axis position of the cable, and the PP rope is filled in other positions of the cable;
the third lapping layer is formed by lapping polyester tapes in an overlapping way;
the total shielding layer is formed by longitudinally wrapping an aluminum-plastic composite belt;
the inner sheath is made of low-smoke halogen-free flame-retardant oil-resistant cross-linked polyolefin sheath material, the average thickness of the inner sheath is not more than 1.50mm, and the thickness of the thinnest part is not less than 0.84mm;
the armor braid layer is formed by weaving galvanized steel wires, and the weaving coverage rate is not less than 90%;
the outer sheath is made of an ultraviolet-proof low-smoke halogen-free flame-retardant oil-resistant cross-linked polyolefin sheath material, the average thickness of the outer sheath is not more than 1.25mm, and the thickness of the thinnest part is not less than 0.6mm.
2. The cross-linked PE insulating multilayer shielding ultraviolet-proof low-smoke halogen-free offshore platform communication cable as claimed in claim 1, wherein the outer diameter of the cable is in a range of 24.0mm to 28.0mm.
3. The cross-linked PE insulating multilayer shielding ultraviolet-proof low-smoke halogen-free offshore platform communication cable as claimed in claim 1, wherein the stranding pitch of each split screen group is not more than 150mm.
4. The cross-linked PE insulating multilayer shielding ultraviolet-proof low-smoke halogen-free offshore platform communication cable according to claim 1, wherein the thickness of the double-sided synthetic white mica tape of the fire-resistant layer is 0.12 mm-0.16 mm.
5. The cross-linked PE insulating multilayer shielding ultraviolet-proof low-smoke halogen-free offshore platform communication cable as claimed in claim 1, wherein the diameter of the galvanized steel wire of the armor braid is 0.295 mm-0.30 mm.
6. The cross-linked PE insulating multilayer shielding ultraviolet-proof low-smoke halogen-free offshore platform communication cable as claimed in claim 1, wherein the polyester tapes of the first wrapping layer, the second wrapping layer and the third wrapping layer are all 0.038 mm-0.040 mm in thickness, and the overlapping rate is not less than 25%.
7. The cross-linked PE insulating multilayer shielding ultraviolet-proof low-smoke halogen-free offshore platform communication cable as claimed in claim 1, wherein the thicknesses of the aluminum-plastic composite tapes of the sub-shielding layers and the total shielding layer are both 0.045 mm-0.055 mm, and the overlapping rate is not less than 25%.
8. The cross-linked PE insulating multilayer shielding ultraviolet-proof low-smoke halogen-free offshore platform communication cable according to claim 1, wherein the outer diameter of the low-smoke halogen-free filler strip in the filler is 5.8 mm-6.2 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222605308.1U CN218849155U (en) | 2022-09-30 | 2022-09-30 | Cross-linked PE insulated multilayer shielding anti-ultraviolet low-smoke halogen-free offshore platform communication cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222605308.1U CN218849155U (en) | 2022-09-30 | 2022-09-30 | Cross-linked PE insulated multilayer shielding anti-ultraviolet low-smoke halogen-free offshore platform communication cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118155949A (en) * | 2024-04-19 | 2024-06-07 | 广东新亚光电缆股份有限公司 | Manufacturing system of temperature-resistant 105-DEG C environment-friendly PP insulated cable |
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2022
- 2022-09-30 CN CN202222605308.1U patent/CN218849155U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118155949A (en) * | 2024-04-19 | 2024-06-07 | 广东新亚光电缆股份有限公司 | Manufacturing system of temperature-resistant 105-DEG C environment-friendly PP insulated cable |
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