CN213781618U - Optical fiber composite type rat-proof and termite-proof flame-retardant armored special cable - Google Patents
Optical fiber composite type rat-proof and termite-proof flame-retardant armored special cable Download PDFInfo
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- CN213781618U CN213781618U CN202121348951.XU CN202121348951U CN213781618U CN 213781618 U CN213781618 U CN 213781618U CN 202121348951 U CN202121348951 U CN 202121348951U CN 213781618 U CN213781618 U CN 213781618U
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Abstract
An optical fiber composite type rat and ant prevention and flame retardation armored special cable belongs to the technical field of circuits, and is structurally characterized in that a plurality of wire cores, a plurality of optical fibers and a filling rope are twisted around a reinforcing core to form a cable core, and a wrapping layer, an inner protection layer, an armor layer and an outer protection layer are sequentially wrapped outside the cable core; the wire core is formed by wrapping an insulating layer outside a conductor; the optical fiber is formed by wrapping a cladding layer outside an optical fiber cable core; the reinforced core is formed by wrapping a protective layer outside a steel wire rope; the insulating layer is made of cross-linked polyethylene material; the cladding is made of polyvinyl chloride material; the protective layer is made of polyvinyl chloride material; the filling rope is formed by twisting a flame-retardant polypropylene reticular tearing film; the lapping layer is formed by lapping non-woven fabric tapes in an overlapping way; the inner protective layer is made of polyvinyl chloride material; the armor layer is formed by wrapping galvanized steel strips in a spiral gap manner; the outer protective layer is made of rat and ant prevention and flame retardant polyethylene materials. The cable can better meet the dual requirements of communication and power utilization in the construction of a communication network.
Description
Technical Field
The utility model relates to a communication construction uses novel special cable, in particular to outdoor photoelectricity common transport has the special cable of protection against rodents ant, radial waterproof, resistance to compression etc. belongs to cable technical field.
Background
The cable for the communication equipment has special use environment, and particularly in communication engineering construction, outdoor pre-laid indoor light/cables have high requirements on the performance of the cable, such as rat and ant prevention, radial water resistance, pressure resistance and the like. Conventional cables are difficult to meet.
In order to avoid the influence of rain erosion, rat and ant insect damage and the pressure generated by road traveling in the process of burying the cable underground, a special cable special for matching is needed to solve the problem.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a compound protection against rodents ant of optic fibre, fire-retardant armor special type cable, this scheme passes through specific structural design of cable and material use for the cable has resistant rain erosion, the influence of mouse ant insect pest and fire-retardant characteristic. The utility model discloses a concrete technical scheme as follows:
the utility model provides a compound protection against rodents ant of optic fibre, fire-retardant armor special cable, the structure is:
the cable is formed by twisting a plurality of wire cores, a plurality of optical fibers and a filling rope around a reinforcing core into a cable core, the twisting pitch diameter ratio is 16-20 times, and a wrapping layer, an inner protection layer, an armor layer and an outer protection layer are sequentially wrapped outside the cable core;
the wire core is formed by wrapping an insulating layer outside a conductor; the optical fiber is formed by wrapping a cladding layer outside an optical fiber cable core; the reinforced core is formed by wrapping a protective layer outside a steel wire rope;
the insulating layer is made of cross-linked polyethylene materials, the nominal thickness range of the insulating layer is 0.6-0.7 mm, and the thickness of the thinnest point is more than or equal to 90-0.1 mm of the nominal value;
the cladding is made of polyvinyl chloride material, the nominal thickness range of the cladding is 0.6-0.8 mm, and the thickness of the thinnest point is more than or equal to 80% mm of the nominal value;
the protective layer is made of polyvinyl chloride materials, the nominal thickness range of the protective layer is 0.8-1.2 mm, and the thickness of the thinnest point is more than or equal to 90-0.1 mm of the nominal value;
the filling rope is formed by twisting a flame-retardant polypropylene reticular tearing film; the cable is tightly filled in the middle of the cable core in the cabling process, and plays roles in improving the roundness of the cable and enhancing the waterproof performance;
the inner protection layer is made of polyvinyl chloride materials, the nominal thickness range of the inner protection layer is 0.8-1.0 mm, and the thickness of the thinnest point is more than or equal to 80% mm of the nominal value;
the armor layer is formed by wrapping galvanized steel strips in a spiral gap mode, and the wrapping gap is not larger than 50% of the width of the steel strips;
the outer protective layer is made of rat and ant prevention and flame retardant polyethylene materials (the selectable brand is FM/FY/ZPH-1), the nominal thickness range of the outer protective layer is 1.0-1.2 mm, and the thickness of the thinnest point is larger than or equal to 85-0.1 mm of the nominal value.
Further: the total number of the wire cores and the optical fibers is 4-12, and the radial sectional area of the conductor is 1.0-6 mm2。
Specifically, the method comprises the following steps: the conductor is formed by stranding copper monofilaments, and the diameter range of the copper monofilaments is 0.43-1.04 mm; the diameter range of the conductor 1 is 1.3-3.1 mm; the copper monofilament has the left twisting direction and the twisting pitch-diameter ratio of 18-25 times.
Further: the optical fiber cable core is composed of a plurality of fiber cores, and the diameter range of the fiber cores is 20-50 mu m.
Preferably: the steel cord is formed by twisting 19 steel wires having a wire diameter of 0.24 mm.
Further: the nominal thickness of the non-woven fabric belt of the wrapping layer is 0.1mm, and the wrapping overlapping width is not less than 5 mm.
Further: the armor layer is wrapped by two layers of galvanized steel strips in turn in a left-handed spiral gap mode, and the nominal thickness of each galvanized steel strip is 0.2 mm.
The number of the cores and the optical fibers is the same, and each core is adjacent to each optical fiber.
Advantageous effects
After the technical scheme is adopted, the utility model discloses following beneficial effect has:
in order to meet the high requirements of outdoor pre-laid household photoelectric common transmission cables on the performance of the cables such as rat/ant prevention, radial water resistance, pressure resistance and the like in communication construction, the cables are required to have the performance requirements of excellent rat/ant prevention, radial water resistance, pressure resistance and the like, and optical fibers and conventional copper wire cores are required to be twisted together for molding.
(1) The optical fiber and the wire core are arranged in the photoelectric composite cable together, so that the outer diameter is small, and the occupied space is small. Under the condition that a plurality of cables and optical cables are required to be laid at the same time, one cable can be used for replacing the cables, the cost is saved, and the construction is convenient.
(2) The reinforced core formed by the steel wire rope and the protective layer is matched with the armor layer formed by the galvanized steel strip, so that the positive pressure resistance and the side pressure resistance of the cable can be greatly improved, and the cable damage caused by the driving pressure on the road surface is avoided.
(3) The polyethylene material of the outer protective layer has good radial waterproof performance, and the rat-proof, termite-proof and flame-retardant additives are added on the basis, so that the influence of rainwater erosion and rat-ant insect damage on the buried cable in the using process can be avoided.
The utility model discloses the cable has used specific structure and material at the newly-designed cable, has made the cable of specific structure to reach cable photoelectricity common transmission, protection against rodents ant, radial waterproof, resistance to compression etc. effect, can be applicable to well in the communication construction outdoor in advance to apply in advance and establish the common transmission cable occasion of family's photoelectricity.
Drawings
Fig. 1 is a schematic view of a radial structure of a cable according to an embodiment of the present invention;
in the figure: conductor 1, insulating layer 2, optical fiber cable core 3, covering 4, packing rope 5, wire rope 6, sheath 7, around covering 8, interior sheath 9, armor 10, outer jacket 11.
Detailed Description
The technical scheme is further explained by combining the drawings and the specific embodiment as follows:
referring to fig. 1, the optical fiber composite type rat/ant-proof flame-retardant armored special cable is structurally characterized in that a plurality of wire cores, a plurality of optical fibers and a filling rope 5 are twisted around a reinforcing core to form a cable core, the twisting pitch-diameter ratio is 16-20 times, and a wrapping layer 8, an inner protection layer 9, an armor layer 10 and an outer protection layer 11 are sequentially wrapped outside the cable core; in this example, the same number of cores and fibers is 3, and each core is adjacent to each fiber.
The wire core is formed by wrapping an insulating layer 2 outside a conductor 1; the optical fiber is formed by wrapping a cladding 4 outside an optical fiber cable core 3; the reinforced core is formed by wrapping a sheath 7 outside a steel wire rope 6;
the insulating layer 2 is made of cross-linked polyethylene materials, the nominal thickness range of the insulating layer 2 is 0.6-0.7 mm, and the thinnest point thickness is larger than or equal to 90-0.1 mm of the nominal value;
the cladding 4 is made of polyvinyl chloride material, the nominal thickness range of the cladding 4 is 0.6-0.8 mm, and the thinnest point thickness is more than or equal to 80% mm of the nominal value;
the protective layer 7 is made of polyvinyl chloride materials, the nominal thickness range of the protective layer 7 is 0.8-1.2 mm, and the thinnest point thickness is larger than or equal to 90-0.1 mm of the nominal value;
the filling rope 5 is formed by twisting a flame-retardant polypropylene reticular tearing film;
the inner protection layer 9 is made of polyvinyl chloride materials, the nominal thickness range of the inner protection layer 9 is 0.8-1.0 mm, and the thickness of the thinnest point is more than or equal to 80% mm of the nominal value;
the armor layer 10 is formed by wrapping galvanized steel strips in a spiral gap mode, and the wrapping gap is not larger than 50% of the width of the steel strips;
the outer protective layer 11 is made of rat and ant prevention and flame retardant polyethylene materials, the nominal thickness range of the outer protective layer 11 is 1.0-1.2 mm, and the thinnest point thickness is larger than or equal to 85-0.1 mm of the nominal value.
The total number of the wire cores and the optical fibers is 4-12 (6 in the example, 3 wire cores and optical fibers are respectively), and the radial sectional area of the conductor 1 is 1.0-6 mm2。
The conductor 1 is formed by stranding copper monofilaments, and the diameter range of the copper monofilaments is 0.43-1.04 mm; the diameter range of the conductor 1 is 1.3-3.1 mm; the copper monofilament has the left twisting direction and the twisting pitch-diameter ratio of 18-25 times.
The optical fiber cable core 3 is composed of a plurality of fiber cores, and the diameter range of the fiber cores is 20-50 mu m.
In this example: the steel wire rope 6 is formed by twisting 19 steel wires with the wire diameter of 0.24mm, and the thickness of the inner protection layer 9 is 0.8mm due to the thin steel wires, so that the protection effect of the steel wire rope can be met. The nominal thickness of the non-woven fabric tape of the wrapping layer 8 is 0.1mm, and the wrapping overlapping width is not less than 5 mm. The armor layer 10 is formed by wrapping two layers of galvanized steel strips in a spiral gap manner in the left direction in sequence, and the nominal thickness of each galvanized steel strip is 0.2 mm.
In the example, the cross-linked polyethylene material and the polyvinyl chloride material are common cable materials, and the rat-proof, ant-proof and flame-retardant polyethylene material adopts a cable material with the brand number of FM/FY/ZPH-1.
Through detection, the rat-proof and termite-proof performance detection requirements of the cable are as follows:
rat-proof test: according to JB/T10696.10-2011, the experimental result shows that the protection rate is more than or equal to 0.9, and the standard requirement is met.
And (3) ant prevention test: the experimental method is according to JB/T10696.9-201, and the test result is that the moth-eaten grade is less than or equal to 2 grade, and meets the standard requirement.
The present invention is not limited to the above embodiments, and all technical solutions formed by equivalent or equivalent replacement fall into the protection scope claimed in the present invention.
Claims (8)
1. The utility model provides a compound protection against rodents ant of optic fibre, fire-retardant armor special cable, its characterized by structure is:
the cable is formed by twisting a plurality of wire cores, a plurality of optical fibers and a filling rope (5) around a reinforcing core into a cable core, wherein the twisting pitch-diameter ratio is 16-20 times; the wrapping layer (8), the inner protective layer (9), the armor layer (10) and the outer protective layer (11) are sequentially wrapped outside the cable core;
the wire core is formed by wrapping an insulating layer (2) outside a conductor (1); the optical fiber is formed by wrapping a cladding (4) outside an optical fiber cable core (3); the reinforced core is formed by wrapping a sheath (7) outside a steel wire rope (6);
the insulating layer (2) is made of a cross-linked polyethylene material, the nominal thickness range of the insulating layer (2) is 0.6-0.7 mm, and the thickness of the thinnest point is more than or equal to 90-0.1 mm of the nominal value;
the cladding (4) is made of polyvinyl chloride materials, the nominal thickness range of the cladding (4) is 0.6-0.8 mm, and the thickness of the thinnest point is more than or equal to 80% mm of the nominal value;
the protective layer (7) is made of polyvinyl chloride material, the nominal thickness range of the protective layer (7) is 0.8-1.2 mm, and the thinnest point thickness is more than or equal to 90-0.1 mm of the nominal value;
the filling rope (5) is formed by twisting a flame-retardant polypropylene reticular tearing film;
the lapping layer (8) is formed by lapping and lapping non-woven fabric tapes in an overlapping way;
the inner protection layer (9) is made of polyvinyl chloride materials, the nominal thickness range of the inner protection layer (9) is 0.8-1.0 mm, and the thickness of the thinnest point is more than or equal to 80% of the nominal value;
the armor layer (10) is formed by wrapping galvanized steel strips in a spiral gap mode, and the wrapping gap is not larger than 50% of the width of the steel strips;
the outer protective layer (11) is made of rat and ant prevention and flame retardant polyethylene materials, the nominal thickness range of the outer protective layer (11) is 1.0-1.2 mm, and the thickness of the thinnest point is larger than or equal to 85-0.1 mm of the nominal value.
2. The special optical fiber composite type rat-proof and termite-proof flame-retardant armored cable according to claim 1, wherein the total number of the cores and the optical fibers is 4-12, and the radial sectional area of the conductor (1) is 1.0-6 mm2。
3. The special optical fiber composite type rat/ant-proof flame-retardant armored cable according to claim 1, wherein the conductor (1) is formed by stranding copper monofilaments, and the diameter range of the copper monofilaments is 0.43-1.04 mm; the diameter range of the conductor (1) is 1.3-3.1 mm; the copper monofilament has the left twisting direction and the twisting pitch-diameter ratio of 18-25 times.
4. The special optical fiber composite type rat-proof and termite-proof flame-retardant armored cable according to claim 1, is characterized in that the optical fiber cable core (3) is composed of a plurality of fiber cores, and the diameter range of the fiber cores is 20-50 μm.
5. The special optical fiber composite rat and ant prevention and flame retardant armored cable according to claim 1, wherein the steel wire rope (6) is formed by twisting 19 steel wires with the wire diameter of 0.24 mm.
6. The special optical fiber composite type rat/ant-proof flame-retardant armored cable according to claim 1, wherein the nominal thickness of the non-woven fabric of the wrapping layer (8) is 0.1mm, and the wrapping overlapping width is not less than 5 mm.
7. The special optical fiber composite rat and ant prevention and flame retardant armored cable according to claim 1, wherein the armor layer (10) is formed by wrapping two layers of galvanized steel strips in a spiral gap manner in sequence from left to right, and the nominal thickness of the galvanized steel strips is 0.2 mm.
8. The special optical fiber composite type rat-proof and termite-proof flame-retardant armored cable according to claim 1, wherein the number of the cores and the number of the optical fibers are the same, and each core is adjacent to each optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121348951.XU CN213781618U (en) | 2021-06-17 | 2021-06-17 | Optical fiber composite type rat-proof and termite-proof flame-retardant armored special cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121348951.XU CN213781618U (en) | 2021-06-17 | 2021-06-17 | Optical fiber composite type rat-proof and termite-proof flame-retardant armored special cable |
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| Publication Number | Publication Date |
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| CN213781618U true CN213781618U (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121348951.XU Active CN213781618U (en) | 2021-06-17 | 2021-06-17 | Optical fiber composite type rat-proof and termite-proof flame-retardant armored special cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115047572A (en) * | 2022-05-10 | 2022-09-13 | 扬州劳根电气有限公司 | Multi-core optical cable with flame retardant property |
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2021
- 2021-06-17 CN CN202121348951.XU patent/CN213781618U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115047572A (en) * | 2022-05-10 | 2022-09-13 | 扬州劳根电气有限公司 | Multi-core optical cable with flame retardant property |
| CN115047572B (en) * | 2022-05-10 | 2023-08-15 | 扬州劳根电气有限公司 | Multi-core optical cable with flame retardant property |
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