CN109148028B - Intelligent cable - Google Patents
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- CN109148028B CN109148028B CN201811127758.6A CN201811127758A CN109148028B CN 109148028 B CN109148028 B CN 109148028B CN 201811127758 A CN201811127758 A CN 201811127758A CN 109148028 B CN109148028 B CN 109148028B
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- 230000003287 optical effect Effects 0.000 claims abstract description 69
- 238000009413 insulation Methods 0.000 claims abstract description 61
- 238000004891 communication Methods 0.000 claims abstract description 52
- 239000003063 flame retardant Substances 0.000 claims abstract description 36
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 34
- 239000013307 optical fiber Substances 0.000 claims abstract description 31
- 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 abstract description 30
- 239000004020 conductor Substances 0.000 claims abstract description 25
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 20
- 239000010410 layer Substances 0.000 claims description 172
- 239000011241 protective layer Substances 0.000 claims description 19
- 239000000919 ceramic Substances 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 8
- 239000004945 silicone rubber Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 4
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0258—Disposition of insulation comprising one or more longitudinal lapped layers of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/221—Longitudinally placed metal wires or tapes
- H01B7/225—Longitudinally placed metal wires or tapes forming part of an outer sheath
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Communication Cables (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses an intelligent cable, which comprises a power cable unit, a temperature measuring optical cable unit and a communication optical cable unit, wherein the temperature measuring optical cable unit and the communication optical cable unit are coated in the power cable unit, the temperature measuring optical cable unit is uniformly distributed on the periphery of the circumference of the communication optical cable unit, the temperature measuring optical cable unit is coated on the periphery of the communication optical cable unit through a high flame-retardant protection layer and an inner insulating shielding layer outside the communication optical cable unit, reinforcing pieces are uniformly distributed on the periphery of the inner insulating shielding layer, and the power cable unit comprises a wrapping belt protection layer, a plurality of cable core conductors coated by the wrapping belt protection layer, and a silicon rubber insulation layer and an outer insulating shielding layer which are sequentially coated outside each cable core conductor. The intelligent cable of the invention improves the strain of the temperature measuring optical cable unit and the communication optical cable unit, ensures that the transmission performance of the optical fiber is not affected, realizes the real-time intelligent on-line monitoring of the cable load operation condition, ensures that the power supply, the communication and the on-line monitoring are synchronously carried out, and has simple structure and low cost.
Description
Technical Field
The invention belongs to the technical field of power cables, and particularly relates to an intelligent cable.
Background
The power cable (power cable) is used for transmitting and distributing electric energy, is commonly used for urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises and underwater power transmission cables for turning over mountains, crossing rivers and crossing seas, and when the existing cable is subjected to ice and snow or strong wind, the capability of resisting external force is poor, so that great cost burden is brought to power cable transmission and normal transmission of electric energy is influenced. With the development and promotion of smart power grid construction, the intelligent construction of smart power grids such as automatic control of a power distribution network, remote acquisition of power transmission information, on-line detection of cable running conditions, bidirectional interaction of a power grid and power users and the like all need the development of power information communication to a high-speed, reliable and safe direction. Therefore, the power cable is provided with the composite intelligent cable in which the communication optical fiber and the power cable are combined together, so that the power supply line and the information communication network line can be laid synchronously, and the power supply, the communication and the on-line monitoring can be synchronously carried out, thereby achieving the aim of multiple purposes of one cable. At present, no manufacturer for producing the composite intelligent cable is specialized in China; the traditional production process is lag, the structural design is unreasonable, the laying area is large, the production cost is high, and the yield is low; in addition, the requirements on high flame retardance and environmental protection of cables in recent years are higher and higher, so that many manufacturers cannot design and produce intelligent environmental-protection medium-voltage power cable products meeting the technical requirements due to the prior art.
Disclosure of Invention
The invention aims at: aiming at the problems, the intelligent cable provided by the invention improves the strain of the temperature measuring optical cable unit and the communication optical cable unit, ensures that the transmission performance of the optical fiber is not affected, realizes the real-time intelligent on-line monitoring of the load operation condition of the cable, ensures that the power supply, the communication and the on-line monitoring are synchronously carried out, and has the advantages of simple structure and low cost. In order to achieve the above purpose, the present invention adopts the following technical scheme:
the invention provides an intelligent cable, which comprises a power cable unit, a temperature measuring optical cable unit and a communication optical cable unit, wherein the temperature measuring optical cable unit and the communication optical cable unit are coated in the power cable unit, the temperature measuring optical cable unit is uniformly distributed on the periphery of the communication optical cable unit, the temperature measuring optical cable unit is coated on the periphery of the communication optical cable unit sequentially through a high flame-retardant protection layer and an inner insulation shielding layer, reinforcing pieces are uniformly distributed on the periphery of the inner insulation shielding layer, the power cable unit comprises a wrapping belt protection layer, a plurality of cable core conductors coated by the wrapping belt protection layer, a silicon rubber insulation layer and an outer insulation shielding layer, the silicon rubber insulation layer and the insulation shielding layer are uniformly distributed on the periphery of the insulation shielding layer after being separated by the reinforcing pieces, the silicon rubber insulation layer and the insulation shielding layer form a shielding layer between the insulation protection layer and the high flame-retardant protection layer and the inner insulation shielding layer in a two-circle crossing mode, the shielding layer formed by the high flame-retardant protection layer and the inner insulation shielding layer is mutually embedded in the insulation protection layer formed by the silicon rubber insulation protection layer and the insulation shielding layer, a gap is formed between the outer shielding layer of each cable core conductor and the insulation shielding layer, and a gap is filled between the wrapping belt and the insulation shielding layer formed in the insulation layer.
Preferably, the power cable unit further comprises a fireproof insulating layer and an outer sheath layer, and the fireproof insulating layer and the outer sheath layer are sequentially coated outwards by the outer insulating shielding layer to form a whole.
In the above scheme, it is further preferable that the number of the cable core conductors is three, the number of the reinforcing members is three, and the three cable core conductors and the three reinforcing members are respectively distributed between the wrapping belt protective layer and the inner insulation shielding layer at 120 degrees.
In the above aspect, it is further preferable that a through hole in an axial direction is provided at a surface edge of the reinforcing member, and a cross section of the reinforcing member has a smooth surface, a rugged surface, or a corrugated curved surface.
The above scheme is further preferable, the temperature measuring optical cable unit is arranged in an arc body which is formed by intersecting two circles between an insulating protective layer formed by the silicon rubber insulating layer and the insulating shielding layer and a shielding layer formed by the high flame retardant protective layer and the inner insulating shielding layer.
According to the scheme, the wrapping belt protective layer is a galvanized or copper-plated spiral armor layer, and the outer sheath layer is a halogen-free low-smoke high-flame-retardance polyolefin outer sheath layer.
The scheme is further preferable that the high flame-retardant protective layer is a fireproof mud layer or a flame-retardant layer made of glass fiber tapes, and the filling layer is made of nano ceramic fireproof and fireproof silicon rubber.
In the above scheme, the communication optical cable unit further preferably comprises at least one multimode optical fiber and two grating optical fibers, the number of the temperature measurement optical cable units is three, and each temperature measurement optical cable unit at least comprises one temperature measurement sensing optical fiber.
In the above scheme, it is further preferable that the temperature-measuring sensing optical fiber is disposed in the high flame-retardant protection layer, the inner insulation shielding layer and the insulation protection layer formed by the silicon rubber insulation layer and the insulation shielding layer, and is formed by longitudinally extending in a sine wave mode.
In summary, the invention adopts the technical scheme, and has the following beneficial technical effects:
(1) The intelligent cable with good quality is extruded by adopting a multilayer continuous coextrusion (more than two layers or 3 layers) mode, the extrusion temperature is 85-140 ℃ and 250-290 ℃ melt blending extrusion, excellent insulation, mechanical property, power transmission property and communication property of the cable are ensured, the inner and outer insulation shielding layers can effectively prevent electric leakage, electromagnetic interference between the inside and the outside of the cable is improved, and flame retardant property and safety reliability of the temperature measuring optical fiber are improved by flame retardant protection; electromagnetic interference of external or internal factors to the temperature measuring optical fiber and the communication optical fiber is reduced, and the radial electric field is uniformly distributed; high-efficiency stable transmission of the temperature measuring optical fiber and the communication optical fiber is ensured, and distortion is reduced.
(2) The position layout among the power cable unit, the temperature measuring optical cable unit, the communication optical cable unit and the reinforcing piece in the intelligent cable is reasonable, the overall outer diameter of the cable is reduced, the compactness of the cable is enhanced, and materials are saved; the external loss of the communication optical fiber can be reduced, the strain of the temperature measuring optical cable unit and the communication optical cable unit is improved, the transmission performance of the optical fiber is not influenced, the real-time intelligent on-line monitoring of the cable load operation condition is realized, and the synchronous performance of power supply, communication and on-line monitoring is ensured.
(3) According to the invention, the fire resistance experiment requirement meets the standard of GB/T19216.21-2003, the high-temperature fireproof flame-retardant cable can play a good flame-retardant effect to isolate flame, ensure smooth power and communication under the condition of fire, and can be transmitted to a remote light detection device through a temperature measuring optical fiber or a communication optical fiber if abnormal heat is concentrated, so that the abnormal point condition can be quickly known and timely processed, the service life of the cable can be effectively prolonged, and the failure rate of a power transmission line can be reduced.
Drawings
FIG. 1 is a schematic diagram of an intelligent on-line monitoring power cable of the present invention;
FIG. 2 is a schematic diagram showing the structure of an embedded layout of a temperature sensing optical fiber of the present invention
FIG. 3 is a schematic diagram of a monitoring circuit of the on-line monitoring device of the present invention;
FIG. 4 is an on-line monitoring schematic diagram of the power cable of the present invention;
in the drawings, a 1-power cable unit, a 2-temperature measuring optical cable unit, a 3-communication optical cable unit, a 4-reinforcing member, a 20-high flame retardant protective layer, a 21-inner insulating shielding layer, a 100-cable core conductor, a 101-silicon rubber insulating layer, a 102-outer insulating shielding layer, a 103-filling layer, a 104-fireproof insulating layer, a 105-fireproof insulating layer, a 106-outer sheath layer, a 200-arc body 200 and a 201-temperature measuring sensing optical fiber.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and by illustrating preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the invention, and that these aspects of the invention may be practiced without these specific details.
As shown in fig. 1 and 2, according to the smart cable of the present invention, the smart cable comprises a power cable unit 1, a temperature measurement optical cable unit 2 and a communication optical cable unit 3, wherein the temperature measurement optical cable unit 2 is coated in the power cable unit 1, the temperature measurement optical cable unit 2 is uniformly distributed on the circumference periphery of the communication optical cable unit 3, the temperature measurement optical cable unit 2 is coated on the circumference periphery of the communication optical cable unit 3 by sequentially passing through a high flame retardant protection layer 20 and an inner insulating shielding layer 21 outside the communication optical cable unit 3, reinforcing pieces 4 are uniformly distributed on the periphery of the inner insulating shielding layer 21, the power cable unit 1 comprises a wrapping tape protection layer 104, a plurality of cable core conductors 100 coated by the wrapping tape protection layer 104, a silicone rubber insulating layer 101 and an outer insulating shielding layer 102, wherein the silicone rubber insulating layer 101 and the outer insulating shielding layer 102 are sequentially coated outside each cable core conductor 100, and the cable core conductors 100 are uniformly distributed on the periphery of the insulating shielding layer 21 after being separated by the reinforcing pieces 4. In the invention, the power cable unit 1 further comprises a fireproof insulating layer 105 and an outer sheath layer 106, the fireproof insulating layer 104 and the outer sheath layer 106 are sequentially coated outwards by the outer insulating shielding layer 102 to form a whole, the wrapping belt protective layer 104 is a galvanized or copper-clad spiral armor layer, and can also be woven by using a galvanized or copper-clad tape, so that the weaving density is not less than 80%, the mechanical strength of the cable is greatly increased to prevent the damage to the cable caused by radial or longitudinal external force, the electromagnetic interference to the cable from the outside or inside can be indirectly reduced, the efficient and stable transmission of the temperature measuring transmission optical fiber and the communication optical fiber is ensured, and the distortion is reduced. The outer sheath layer 106 is a halogen-free low-smoke high-flame-retardance polyolefin outer sheath layer, is made of a crosslinked polyolefin insulating material, has a good insulating effect, can effectively ensure that the power cable has halogen-free low-smoke flame retardance, and effectively improves the heat dissipation effect of the power cable. The invention adopts a glass fiber tape as a flame retardant layer of which the high flame retardant protective layer 20 has excellent performances of high strength, high modulus, high temperature resistance, acid resistance, alkali resistance, light weight and the like, the tensile strength is more than 25MPa, the bending strength performance is more than 98MPa, the permanent deformation rate is less than 1.8 percent, the cable core conductor 100 is sequentially co-extruded in the high flame retardant protective layer 20 and the inner insulating shielding layer 21 to form an insulating shielding body which is mixed and staggered with each other, and a filling layer 103 is filled in a gap formed between the wrapping tape protective layer 104 and the inner insulating shielding layer 21, and the high flame retardant protective layer 20 is a flame retardant layer made of a flame retardant mud layer or a glass fiber tape. The filling layer 103 is made of nano ceramic fireproof and fireproof silicon rubber, the nano ceramic fireproof and fireproof silicon rubber is made of the nano ceramic fireproof and fireproof silicon rubber which has the basic characteristics of silicon rubber at normal temperature, is odorless, high and low temperature resistant, ageing resistant, good in processing performance and the like, and forms a hard ceramic protective layer under the high-temperature flame ablation condition, so that the cable is prevented from being damaged, a good flame retardant effect is achieved, flame is isolated, and smoothness of electric power and communication is guaranteed under the condition of fire.
In the present invention, as shown in fig. 2, the temperature-measuring optical cable unit 2 is disposed between an insulating protection layer formed by the silicone rubber insulating layer 101 and the insulating shielding layer 102 and a shielding layer formed by the high flame-retardant protection layer 20 and the inner insulating shielding layer 21, and is an arc 200 (arc-shaped insulating shielding body) intersecting in two circles, the temperature-measuring optical cable unit 2 is disposed between an insulating protection layer formed by the silicone rubber insulating layer 101 and the insulating shielding layer 102 and a shielding layer formed by the high flame-retardant protection layer 20 and the inner insulating shielding layer 21, and is an arc 200 (or arc-shaped insulating shielding body formed by mutually mixing and co-extruding in a staggered manner) arranged in a manner intersecting in two circles, and then a gap formed outside the power cable unit 1 and the temperature-measuring optical cable unit 2 is filled and coated by the filling layer 103, and the filling layer 103 can isolate and protect the power cable unit 1 from the temperature-measuring optical cable unit 2 and the communication optical cable unit 3, and the filling layer 103 is made of nano ceramic fireproof and refractory silicon rubber, and the nano ceramic fireproof silicon rubber is made into a hard ceramic under the high temperature ablation condition, so that the cable is not only protected, but also the fire-retardant effect of the fire-retardant cable unit can be well protected, and the fire-measuring and the communication flame of the communication unit 2 can be normally detected under the conditions. The communication optical cable unit 3 at least comprises a multimode optical fiber and two grating optical fibers, the number of the temperature measuring optical cable units 2 is three, each temperature measuring optical cable unit 2 at least comprises a temperature measuring sensing optical fiber 201, the temperature measuring sensing optical fiber 201 is arranged between the high flame retardant protection layer 20 and the inner insulating shielding layer 21 and between the insulating protection layer formed by the silicone rubber insulating layer 101 and the insulating shielding layer 102 (the arc-shaped body 200 is an arc-shaped insulating shielding body), and is formed by longitudinally extending in a sine wave mode, as shown in fig. 2, the contact area detected by the temperature measuring sensing optical fiber 200 is increased, the toughness of the temperature measuring sensing optical fiber 201 in the arc-shaped body 200 is increased, and the operation temperature of the power cable unit 1 under the influence of the environment can be better detected.
In the invention, as shown in fig. 1, the number of the cable core conductors 100 is three, the number of the reinforcing pieces 4 is three, the thickness of the silicon rubber insulating layer 101 is not more than 2.5mm, the thickness of the outer insulating shielding layer 102 is not more than 1mm, the cable core conductors 100 are formed by twisting a plurality of tinned soft copper wire conductors, the diameters of the tinned soft copper wire conductors are 0.05 mm-0.15 mm, the intelligent cable conductors of the invention meet the requirements of the 5 th type of soft conductors of GB/T3956, and the tinned soft copper wires meet the GB/T4910-2009 standard; the three cable core conductors 100 and the three reinforcing pieces 4 are respectively distributed between the wrapping tape protective layer 104 and the inner insulating shielding layer 21 at 120 degrees, so that the power cable unit 1 (comprising the three cable core conductors 100), the temperature measuring optical cable unit 2 and the communication optical cable unit 3 are uniformly distributed from outside to inside to form a geometric space at 120 degrees, the communication optical cable unit 3 is positioned in the geometric center, and the reinforcing pieces 4 are positioned outside the communication optical cable unit 3 and support the communication optical cable unit 3 between the inner insulating shielding layer 21 and the wrapping tape protective layer 104; the three cable core conductors 100 and the surrounding coating layers thereof are arranged in a mode that two circles intersect with the temperature measuring optical cable unit 2 and the communication optical cable unit 3 which are coated in the inner insulating shielding layer 21, and the circle centers of each cable core conductor 100 and the corresponding temperature measuring optical cable unit 2 and communication optical cable unit 3 are on the same straight line, so that the temperature measuring optical cable unit 2 can better detect the temperature. In order to meet the intelligent power requirement, the intelligent power supply system adopts the structural design of the multi-core intelligent cable, is formed by mixing and tightly wrapping a plurality of cable cores, can measure the temperature change of the cable by being connected with related photoelectric equipment, and can timely rectify and maintain the cable with abnormal temperature change of outgoing lines or abnormal positions in advance, thereby avoiding serious accidents such as large-scale power failure and the like caused by the cable problem; the cable has special intelligent functions of temperature detection, strong stress, optical fiber communication and the like. In the present invention, as shown in fig. 3, through holes 40 are provided at the surface edges of the reinforcement 4 in the axial direction, and when the high fire-retardant protection layer 20 is extruded or co-extrusion coated, a fire-retardant mud layer or a fire-retardant layer made of glass fiber tape penetrates from one side to the other side of the reinforcement 4 through the through holes 40, so that the filler layer 103 firmly extrudes and coats the reinforcement 4 between the communication cable unit 3 and the wrapping tape protection layer 104, the cross section of the reinforcement 4 has a smooth surface, in the present invention, the reinforcement 4 may also be provided as a concave-convex surface or a corrugated surface, and the contact area between the high fire-retardant protection layer 20 and the filler layer 103 and other layers with the reinforcement 4 is increased when the co-extrusion coating is performed, so that the toughness and strength of the reinforcement 4 and the whole smart cable are increased. The reinforcing piece 4 material is long strip or long sheet formed by melting and extruding one or more than two steel wires and nano ceramic fireproof and refractory silicon rubber at a high temperature of 260-280 ℃.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (5)
1. A smart cable, characterized in that: the intelligent cable comprises a power cable unit, a temperature measuring optical cable unit and a communication optical cable unit, wherein the temperature measuring optical cable unit and the communication optical cable unit are coated in the power cable unit, the temperature measuring optical cable unit is uniformly distributed on the periphery of the communication optical cable unit, the temperature measuring optical cable unit is coated on the periphery of the communication optical cable unit through a high flame-retardant protection layer and an inner insulation shielding layer sequentially outside the communication optical cable unit, reinforcing pieces are uniformly distributed on the periphery of the inner insulation shielding layer, the power cable unit comprises a wrapping tape protection layer, a plurality of cable core conductors coated by the wrapping tape protection layer, a silicon rubber insulation layer and an outer insulation shielding layer sequentially coated outside each cable core conductor, the silicon rubber insulation layer and the outer insulation shielding layer are sequentially coated on the wrapping tape protection layer, the silicon rubber insulation layer and the outer insulation shielding layer are sequentially coated on the outer insulation shielding layer, the silicon rubber insulation shielding layer and the inner insulation shielding layer are uniformly distributed on the periphery of the insulation shielding layer after being separated by the reinforcing pieces, the silicon rubber insulation layer and the insulation shielding layer form an insulation protection layer, the insulation protection layer and the high flame-retardant protection layer and the inner insulation shielding layer form a shielding layer which are arranged in a two-round intersecting mode, the shielding layers formed by the high flame-retardant protection layer and the inner insulation shielding layer are mutually embedded in the insulation protection layer formed by the silicon rubber insulation protection layer and the insulation protection layer, the silicon rubber insulation layer and the outer insulation shielding layer which is formed by the insulation protection layer, the silicon rubber insulation layer and the insulation shielding layer is sequentially filled in the insulation protection layer, the insulation protection layer and the insulation protection layer formed by the insulation protection layer, the silicon rubber insulation layer and the insulation layer is formed by the insulation protection layer, and the insulation layer
The number of the cable core conductors is three, the number of the reinforcing pieces is three, and the three cable core conductors and the three reinforcing pieces are respectively distributed between the wrapping belt protective layer and the inner insulation shielding layer at 120 degrees; through holes along the axial direction are formed in the surface edges of the reinforcing piece, and the reinforcing piece is formed by melting and extruding one or more steel wires and nano ceramic fireproof and refractory silicon rubber at a high temperature of 260-280 ℃ to form a strip shape or a long sheet shape;
the communication optical cable unit at least comprises one multimode optical fiber and two grating optical fibers, the number of the temperature measuring optical cable units is three, each temperature measuring optical cable unit at least comprises one temperature measuring sensing optical fiber, and the temperature measuring sensing optical fibers are arranged in a high flame retardant protective layer, an inner insulating shielding layer and an insulating protective layer formed by a silicon rubber insulating layer and an insulating shielding layer and longitudinally extend in a sine wave mode.
2. A smart cable according to claim 1, wherein: the power cable unit further comprises a fireproof insulating layer and an outer sheath layer, and the fireproof insulating layer and the outer sheath layer are sequentially coated outwards by the outer insulating shielding layer to form an integral.
3. A smart cable according to claim 1, wherein: the cross section of the reinforcement member has a smooth surface, a concave-convex undulating surface or a corrugated curved surface.
4. A smart cable according to claim 2, wherein: the wrapping belt protective layer is a galvanized or copper-plated belt spiral armor layer, and the outer sheath layer is a halogen-free low-smoke high-flame-retardance polyolefin outer sheath layer.
5. A smart cable according to claim 1, wherein: the high flame-retardant protective layer is a fireproof mud layer or a flame-retardant layer made of glass fiber tapes, and the filling layer is made of nano ceramic fireproof and refractory silicone rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811127758.6A CN109148028B (en) | 2018-09-27 | 2018-09-27 | Intelligent cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811127758.6A CN109148028B (en) | 2018-09-27 | 2018-09-27 | Intelligent cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109148028A CN109148028A (en) | 2019-01-04 |
| CN109148028B true CN109148028B (en) | 2024-04-12 |
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| CN201811127758.6A Active CN109148028B (en) | 2018-09-27 | 2018-09-27 | Intelligent cable |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824645B (en) * | 2019-11-27 | 2021-07-20 | 国网河南省电力公司南阳供电公司 | Intelligent optical cable with self-sensing function |
| CN113035435A (en) * | 2021-03-29 | 2021-06-25 | 国家电网有限公司 | Cable coated with flame-retardant coating |
| CN116779226B (en) * | 2023-07-25 | 2024-09-13 | 扬州市金鑫电缆有限公司 | Longitudinal watertight net electric cable for underwater cabin penetration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121715A (en) * | 2001-10-09 | 2003-04-23 | Hitachi Cable Ltd | Pipe composite type cable |
| CN105551668A (en) * | 2016-02-19 | 2016-05-04 | 无锡市恒汇电缆有限公司 | Environment-friendly composite high-voltage electric power cable for smart power grid and preparation method thereof |
| CN205542146U (en) * | 2016-04-18 | 2016-08-31 | 铭品电缆集团有限公司 | Combined type optical power cable |
| CN209266083U (en) * | 2018-09-27 | 2019-08-16 | 广西广缆科技集团有限公司 | A kind of intelligent cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2763272C (en) * | 2009-05-27 | 2017-01-10 | Prysmian S.P.A. | Electric cable with strain sensor and monitoring system and method for detecting strain in at least one electric cable |
-
2018
- 2018-09-27 CN CN201811127758.6A patent/CN109148028B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121715A (en) * | 2001-10-09 | 2003-04-23 | Hitachi Cable Ltd | Pipe composite type cable |
| CN105551668A (en) * | 2016-02-19 | 2016-05-04 | 无锡市恒汇电缆有限公司 | Environment-friendly composite high-voltage electric power cable for smart power grid and preparation method thereof |
| CN205542146U (en) * | 2016-04-18 | 2016-08-31 | 铭品电缆集团有限公司 | Combined type optical power cable |
| CN209266083U (en) * | 2018-09-27 | 2019-08-16 | 广西广缆科技集团有限公司 | A kind of intelligent cable |
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| CN109148028A (en) | 2019-01-04 |
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Effective date of registration: 20240520 Address after: 530031 No.10 Guokai Avenue, Jiangnan Economic and Technological Development Zone, Nanning City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Guangcai Cable Group Co.,Ltd. Country or region after: China Address before: No. 10 Guokai Avenue, Jiangnan District, Nanning City, Guangxi Zhuang Autonomous Region, 530000 Patentee before: GUANGXI GXOED GROUP Co.,Ltd. Country or region before: China |