A highly efficient shielded, moisture-proof and flame-retardant marine control cable

Abstract

The present application discloses a high-efficiency shielded, moisture-proof and flame-retardant ship control cable, comprising an outer sheath, an armor layer, an inner sheath, a water-blocking sheath, a shielding layer and a flame-retardant sheath. The flame-retardant sheath has an outer sheath and an inner sheath, and a plurality of communication cable cores and a plurality of first water-absorbing ropes are provided between the outer sheath and the flame-retardant sheath. The control cable of the present application adopts a multi-layer sheath structure as a whole, and cooperates with a pressure-resistant part and a bracket unit, so that the cable itself has good mechanical properties and good pressure-resistant effect. The control cable of the present application has an optical cable, a communication cable core and a control cable core, so that better communication and control effects can be achieved. There are multiple water-absorbing ropes inside, so that even if a small amount of water vapor enters the interior of the cable, the water vapor absorption effect is relatively good. When the cable is installed and connected from the end of the cable, the use of the cable can be judged by the test paper at the end.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and more particularly to a highly efficient shielded, moisture-proof and flame-retardant shipboard control cable. Background Art

[0002] Marine control cables are widely used in the control systems of various watercraft, including river and sea vessels, oil platforms, and other aquatic structures, such as ship main engine control, steering gear control, and light signal control. They are an indispensable part of a ship's electrical system, primarily used to transmit control signals and ensure the normal operation of various control devices and systems on board.

[0003] Long-distance ships require a wide range of equipment, and they sail at sea year-round in harsh environments. Ships experience severe shaking, vibration, and impact, placing high demands on the mechanical strength of marine cables. Traditional marine control cables with insufficient mechanical properties are prone to wear and tear over extended periods of use, impacting the reliability and service life of the cables. Furthermore, in marine environments, cables must withstand the pressure of seawater. Poor pressure resistance can lead to cable breakage, resulting in safety issues such as short circuits and leakage. Furthermore, seawater is highly corrosive. If cables are not waterproof or moisture-proof, moisture can penetrate the cable, corroding the cable core, impacting signal transmission quality, and even causing cable failure. Summary of the Invention

[0004] The present invention aims to overcome the defects of the prior art and provide a highly efficient shielded, moisture-proof and flame-retardant shipboard control cable.

[0005] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a control cable, comprising, from the outside to the inside, an outer sheath, an armor layer, an inner sheath, a water-blocking wrapping layer, a shielding layer and a flame-retardant wrapping layer, wherein the flame-retardant wrapping layer comprises an outer sheath and an inner sheath, and a plurality of communication cable cores and a plurality of first water-absorbing ropes are arranged between the outer sheath and the flame-retardant wrapping layer.

[0006] Furthermore, the inner cladding is a circular ring with an opening, and the outer side of the inner cladding has a plurality of first groove portions; the outer cladding is a circular ring with an opening, and the inner side of the outer cladding has a plurality of second groove portions; the number of the first groove portions is equal to the number of the second groove portions and the two correspond one to one; the corresponding first groove portions and second groove portions form a water-absorbing rope accommodating cavity, and each water-absorbing rope accommodating cavity has a plurality of second water-absorbing ropes; an internal accommodating cavity is formed on the inner side of the inner cladding, and the internal accommodating cavity has a plurality of third water-absorbing ropes.

[0007] Thereby further enhancing the waterproof and moisture-proof ability of the cable. Even if a small amount of water vapor enters the interior of the cable, the water vapor absorption effect is relatively good.

[0008] Furthermore, the water-absorbing rope accommodating chamber and the internal accommodating chamber both extend along the length direction of the control cable.

[0009] Furthermore, the cross-section of the water-absorbing rope accommodating chamber includes a first arc and a second arc; and the cross-section of the internal accommodating chamber is circular.

[0010] Furthermore, the outer sheath is extruded as a whole; the inner sheath includes an extruded layer, a plurality of first control cable cores located in the extruded layer, and a plurality of second control cable cores located in the extruded layer, the first control cable core includes a first conductor and a first insulating layer, and the second control cable core includes a second conductor and a second insulating layer.

[0011] Therefore, the arrangement of the inner sheath and the outer sheath makes the cable have a better pressure resistance effect, and the multiple control cable cores realize the transmission of more control signals.

[0012] Furthermore, one side of the opening of the inner cladding has a plurality of first embedding protrusions, and the other side has a plurality of first embedding grooves that cooperate with the first embedding protrusions, and both sides of the opening of the inner cladding are connected to extended edges, and the two extended edges pass through the opening of the outer cladding; the extended edges also have a second embedding protrusion and a third embedding protrusion, and both sides of the opening of the outer cladding have second embedding grooves that cooperate with the second embedding protrusions; there is also an optical cable between the flame-retardant winding layer and the outer cladding, the optical cable includes an optical cable cladding and two stainless steel tubes located in the optical cable cladding, the stainless steel tubes have optical fibers, the optical cable cladding has a third groove portion, the two extended edges extend into the third groove portion, and the third groove portion has two third embedding grooves that cooperate with the third embedding protrusions; the outer cladding has a mounting recess Groove portion, the installation groove portion includes a supporting groove, a slot connected to the supporting groove and a fourth embedding groove connected to the slot, each installation groove portion is installed with a pressure-resistant portion, the pressure-resistant portion includes a supporting unit with a V-shaped cross-section, an insertion unit connected to the supporting unit and a strip-shaped embedding unit connected to the insertion unit, the insertion unit is inserted into the slot, and the strip-shaped embedding unit is embedded in the fourth embedding groove, each pressure-resistant portion is fixedly connected to a bracket unit by an adhesive, the bracket unit includes a V-shaped portion with a V-shaped cross-section and two arc-shaped portions with arc-shaped cross-sections located at both ends of the V-shaped portion, the arc-shaped portions abut the outer side of the outer sheath, each V-shaped portion is installed with a communication cable core, and a first water-absorbing rope is installed between the mutually close arc-shaped portions of two adjacent bracket units.

[0013] Thus, the pressure-resistant portion and the bracket unit surround the outer cladding, achieving a good pressure-resistant effect.

[0014] Furthermore, the number of the first water-absorbing ropes is one less than the number of the bracket units.

[0015] Furthermore, the first embedding protrusion, the second embedding protrusion and the third embedding protrusion are all strip-shaped extending along the length direction of the control cable.

[0016] Furthermore, the first embedding groove, the second embedding groove and the third embedding groove are all strip-shaped extending along the length direction of the control cable.

[0017] This enhances the connection strength between the components inside the cable.

[0018] Furthermore, the outer side of the optical cable sheath has a first strip placement groove, a first strip plastic film is placed in the first strip placement groove, and the outer side of the first strip plastic film has a first strip test paper that changes color when exposed to water; the surfaces opposite to the two extended edges each have a second strip placement groove, a second strip plastic film is placed between the two second strip placement grooves, and both sides of the second strip plastic film have a second strip test paper that changes color when exposed to water.

[0019] Therefore, based on whether the test paper changes color, it can be judged whether the cable is used properly and whether the inside of the cable is corroded by water vapor.

[0020] In some embodiments, the lengths of the first strip-shaped plastic film and the second strip-shaped plastic film are between 0.1 and 0.5 meters; and both ends of the control cable have the first strip-shaped plastic film and the second strip-shaped plastic film.

[0021] In other embodiments, both the first strip-shaped plastic film and the second strip-shaped plastic film extend along the entire length of the control cable.

[0022] Furthermore, the cross-section of the communication cable core is elliptical, the communication cable core abuts the flame-retardant wrapping layer, the outer side of the cross-section of the optical cable is arc-shaped, and the optical cable abuts the flame-retardant wrapping layer.

[0023] Therefore, the flame retardant wrapping layer can tightly wrap the communication cable core and the optical cable, enhancing the stability of the internal structure of the cable.

[0024] Furthermore, the extruded layer and the two extended edges of the inner cladding are extruded integrally.

[0025] Furthermore, the bracket unit is formed by pressing a strip of copper plate.

[0026] Furthermore, the V-shaped portion of the bracket unit is fixedly connected to the V-shaped support unit by adhesive.

[0027] Furthermore, the number of the communication cable cores is equal to the number of the second control cable cores, and the number of the first control cable cores is one more than the number of the second control cable cores.

[0028] Furthermore, the communication cable core includes a cable core sheath and two wire cores located in the cable core sheath, and the wire cores include a third insulation layer and a third conductor.

[0029] Furthermore, the first water-absorbing rope, the second water-absorbing rope and the third water-absorbing rope are all made of water-absorbing fibers.

[0030] Thereby the water absorbing effect of the water absorbing rope is good.

[0031] Furthermore, the flame retardant wrapping layer is a mica tape wrapping layer.

[0032] Thereby improving the flame retardant performance of the cable.

[0033] Furthermore, the shielding layer is a copper wire braided shielding layer.

[0034] Thereby enhancing the shielding performance of the cable.

[0035] Furthermore, the armor layer is a steel wire armor layer.

[0036] Thereby improving the mechanical properties of the cable.

[0037] Furthermore, the inner protective layer and the outer protective layer are both polyvinyl chloride layers.

[0038] Thereby effectively protecting the internal structure of the cable.

[0039] Furthermore, the first insulating layer and the second insulating layer are both cross-linked polyethylene insulating layers.

[0040] Therefore, the insulation performance of the cable is high.

[0041] Beneficial effects:

[0042] 1. The control cable of the present application adopts a multi-layer sheath structure as a whole, and is equipped with a pressure-resistant part and a bracket unit outside the outer sheath, so that the cable itself has good mechanical properties and good pressure resistance. The cable has an outer sheath, an inner sheath and an armor layer, so that the overall protection effect of the internal cable core of the cable is good.

[0043] 2. The control cable of the present application has multiple cable cores, including optical cables, communication cable cores and control cable cores, thereby achieving better communication and control effects.

[0044] 3. The control cable of the present application has more space for accommodating water-absorbing ropes and multiple water-absorbing ropes. Therefore, even if a small amount of water vapor enters the interior of the cable, the water vapor absorption effect is relatively good, thereby avoiding the adverse effects of water vapor on the cable core.

[0045] 4. When installing and connecting the control cable of the present application from the end of the cable, the use condition of the cable and whether it is damaged can be judged by the test paper at the end, thereby better maintaining the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of the cross section of the control cable;

[0047] Figure 2 This is an enlarged view of area A;

[0048] Figure 3 This is an enlarged view of area B;

[0049] Figure 4 It is a three-dimensional schematic diagram of the control cable;

[0050] Figure 5 This is an enlarged view of area C;

[0051] Figure 6 This is an enlarged view of area D;

[0052] Figure 7 is a schematic diagram of the outer cladding;

[0053] Figure 8 Schematic diagram of the inner cladding and two extended edges;

[0054] Figure 9 This is a schematic diagram of the pressure-resistant part, bracket unit and communication cable core;

[0055] Figure 10 Schematic diagram of optical cable.

[0056] Explanation of reference numerals: outer sheath 1.1; armor layer 1.2; inner sheath 1.3; water-blocking wrapping layer 1.4; shielding layer 1.5; flame-retardant wrapping layer 1.6; outer sheath 2; second groove portion 2.1; supporting groove 2.2; slot 2.3; fourth embedded groove 2.4; second embedded groove 2.5; inner sheath 3; first groove portion 3.1; internal accommodating cavity 3.2; extruded layer 3.3; first embedded protrusion 3.4; extended edge 3.5; second embedded protrusion 3.6; third embedded protrusion 3.7; second strip placement groove 3.8; communication cable core 4; cable core sheath 4.1; third insulating layer 4.2; third conductor 4.3; first absorbent Water rope 5; second water-absorbing rope 6; third water-absorbing rope 7; first conductor 8.1; first insulating layer 8.2; second conductor 8.3; second insulating layer 8.4; optical cable 9; optical cable sheath 9.1; stainless steel tube 9.2; optical fiber 9.3; third groove portion 9.4; third embedding groove 9.5; first strip placement groove 9.6; pressure-resistant portion 10; support unit 10.1; insertion unit 10.2; strip embedding unit 10.3; bracket unit 11; V-shaped portion 11.1; arc-shaped portion 11.2; first strip plastic film 12; first strip test paper 12.1; second strip plastic film 13; second strip test paper 13.1. DETAILED DESCRIPTION

[0057] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0058] The present invention provides Figure 1-10The illustrated embodiment shows a high-efficiency shielded, moisture-proof, and flame-retardant marine control cable, which comprises, from the outside to the inside, an outer sheath 1.1, an armor layer 1.2, an inner sheath 1.3, a water-blocking wrapping layer 1.4, a shielding layer 1.5, and a flame-retardant wrapping layer 1.6. The flame-retardant wrapping layer 1.6 comprises an outer sheath 2 and an inner sheath 3, and between the outer sheath 2 and the flame-retardant wrapping layer 1.6 are multiple communication cable cores 4 and multiple first water-absorbing ropes 5. The inner cladding 3 is an open annular shape with a plurality of first grooves 3.1 formed on its outer side. The outer cladding 2 is an open annular shape with a plurality of second grooves 2.1 formed on its inner side. The number of first grooves 3.1 is equal to the number of second grooves 2.1, and the first grooves 3.1 and the second grooves 2.1 correspond to each other. The corresponding first grooves 3.1 and second grooves 2.1 form a water-absorbing cord accommodating cavity, each of which contains a plurality of second water-absorbing cords 6. The inner cladding 3 forms an internal accommodating cavity 3.2, which contains a plurality of third water-absorbing cords 7. The outer cladding 2 is integrally extruded. The inner cladding 3 includes an extruded layer 3.3, a plurality of first control cable cores located within the extruded layer 3.3, and a plurality of second control cable cores located within the extruded layer 3.3. The first control cable cores include a first conductor 8.1 and a first insulation layer 8.2, and the second control cable cores include a second conductor 8.3 and a second insulation layer 8.4.

[0059] One side of the opening of the inner cladding 3 has a plurality of first embedding protrusions 3.4, and the other side has a plurality of first embedding grooves that cooperate with the first embedding protrusions 3.4. Both sides of the opening of the inner cladding are connected to extension edges 3.5, and the two extension edges 3.5 pass through the opening of the outer cladding 2; the extension edges 3.5 also have second embedding protrusions 3.6 and third embedding protrusions 3.7, and both sides of the opening of the outer cladding 2 have second embedding grooves 2.5 that cooperate with the second embedding protrusions 3.6; the flame retardant wrapping layer 1.6 There is also an optical cable 9 between the outer sheath 2, the optical cable 9 including an optical cable sheath 9.1 and two stainless steel tubes 9.2 located in the optical cable sheath 9.1, the stainless steel tubes 9.2 having optical fibers 9.3 therein, the optical cable sheath 9.1 having a third groove portion 9.4, the two extended edges 3.5 extending into the third groove portion 9.4, the third groove portion 9.4 having two third embedded grooves 9.5 cooperating with the third embedded protrusions 3.7; the outer sheath 2 has an installation groove portion, the installation groove portion The invention comprises a support groove 2.2, a slot 2.3 communicating with the support groove 2.2, and a fourth embedded groove 2.4 communicating with the slot 2.3. A pressure-resistant portion 10 is installed at each mounting groove portion. The pressure-resistant portion 10 comprises a support unit 10.1 with a V-shaped cross-section, an insertion unit 10.2 connected to the support unit 10.1, and a strip-shaped embedded unit 10.3 connected to the insertion unit 10.2. The insertion unit 10.2 is inserted into the slot 2.3, and the strip-shaped embedded unit 10.3 is embedded in the fourth embedded groove. 2.4, each pressure-resistant part 10 is fixedly connected to a bracket unit 11 by adhesive, and the bracket unit 11 includes a V-shaped part 11.1 with a V-shaped cross-section and two arc-shaped parts 11.2 with arc-shaped cross-sections located at both ends of the V-shaped part 11.1, and the arc-shaped parts 11.2 abut the outer side of the outer sheath 2. Each V-shaped part 11.1 is installed with a communication cable core 4, and a first water-absorbing rope 5 is installed between the mutually adjacent arc-shaped parts 11.2 of two adjacent bracket units 11. The outer side of the optical cable sheath 9.1 has a first strip placement groove 9.6, in which a first strip of plastic film 12 is placed. The outer side of the first strip of plastic film 12 has a first strip of test paper 12.1 that changes color when exposed to water. The opposing surfaces of the two extended edges 3.5 each have a second strip placement groove 3.8. A second strip of plastic film 13 is placed between the two second strip placement grooves 3.8. Both sides of the second strip of plastic film 13 have a second strip of test paper 13.1 that changes color when exposed to water. The length of the first and second strips of plastic film 12, 13 ranges from 0.1 to 0.5 meters. Both ends of the control cable have the first and second strips of plastic film 12, 13.

[0060] The cross-section of the communication cable core 4 is elliptical, and the communication cable core 4 abuts the flame-retardant sheath 1.6. The outer side of the cross-section of the optical cable 9 is arc-shaped, and the optical cable 9 abuts the flame-retardant sheath 1.6. The extruded layer 3.3 and the two extended edges 3.5 of the inner sheath 3 are extruded integrally; the bracket unit 11 is pressed from a strip of copper plate. The number of the communication cable cores 4 is equal to the number of the second control cable cores, and the number of the first control cable cores is one more than the number of the second control cable cores; the communication cable core 4 includes a cable core sheath 4.1 and two wire cores located within the cable core sheath 4.1, and the wire cores include a third insulation layer 4.2 and a third conductor 4.3. The first water-absorbing rope 5, the second water-absorbing rope 6 and the third water-absorbing rope 7 are all made of water-absorbing fibers; the flame-retardant wrapping layer 1.6 is a mica tape wrapping layer; the shielding layer 1.5 is a copper wire braided shielding layer; the armor layer 1.2 is a steel wire armor layer; the inner sheath 1.3 and the outer sheath 1.1 are both polyvinyl chloride layers.

[0061] During the production of the cable of the present application, the inner sheath containing the first control cable core and the second control cable core and the two extended edges can be extruded into one piece, and then a third water-absorbing rope can be placed in the internal accommodating cavity so that the first embedding protrusion is embedded in the first embedding groove, so that the inner sheath is annularly closed, and then the pressure-resistant part and the bracket unit are squeezed and installed into the corresponding installation groove part, and then the inner sheath is wrapped with the outer sheath. During the wrapping, the second water-absorbing rope is placed in the corresponding water-absorbing rope accommodating cavity. When the wrapping is completed, the second embedding protrusion is embedded in the second embedding groove, and the optical cable is used so that the two extended edges extend into the third groove part, and the third embedding protrusion is embedded in the third embedding groove, so that the optical cable and the outer sheath and the inner sheath form a whole, and after the communication cable core and the first water-absorbing rope are installed at each bracket unit, they are wrapped with a flame-retardant wrapping layer, and then the shielding layer, water-blocking wrapping layer, inner sheath, armor layer and outer sheath are made in sequence.

[0062] The control cable of the present application has multiple cable cores, a first control cable core, a second control cable core, a communication cable core and an optical cable, thereby realizing the transmission of more control signals, communication signals and optical signals. In addition, the communication cable is equipped with a pressure-resistant part and a bracket unit, and the pressure-resistant part and the bracket unit surround the outer sheath, thereby realizing a pressure-resistant effect. In addition, the outer sheath and the inner sheath are arranged to surround each other, thereby realizing a better pressure-resistant effect of the cable, so that the cable has better mechanical properties. In addition, the structural arrangement of the inner sheath, the outer sheath and the multiple bracket units allows multiple first water-absorbing ropes, multiple second water-absorbing ropes and multiple third water-absorbing ropes to be arranged inside the cable, so that even if the outside of the cable is slightly damaged, some water vapor entering the inside of the cable can be absorbed by the first, second and third water-absorbing ropes, thereby avoiding the adverse effects of water vapor on the inside of the cable. In addition, a first strip of test paper and a second strip of test paper are installed at each end of the cable. This allows for comprehensive inspections during use, allowing inspections to be conducted from the ends (which are more susceptible to moisture corrosion when the cable is connected via a cable connector). Whether the test paper changes color can be used to determine proper cable use and whether the cable interior has been corroded by moisture. The first strip of test paper is located within the flame-retardant wrapping, while the second strip is located between the two extended edges. This makes the placement of the test paper more optimal and allows for a better understanding of the cable's internal conditions.

[0063] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A high-efficiency shielded, moisture-proof and flame-retardant marine control cable, characterized in that: From the outside to the inside, it includes an outer sheath, an armor layer, an inner sheath, a water-blocking wrapping layer, a shielding layer and a flame-retardant wrapping layer. The flame-retardant wrapping layer has an outer sheath and an inner sheath. There are multiple communication cable cores and multiple first water-absorbing ropes between the outer sheath and the flame-retardant wrapping layer. The inner sheath is a circular ring with an opening, and the outer side of the inner sheath has multiple first grooves. The outer sheath is a circular ring with an opening, and the inner side of the outer sheath has multiple second grooves. The number of the first grooves is equal to the number of the second grooves and the two correspond one to one. The corresponding first grooves and the second grooves form a water-absorbing rope accommodating cavity, and each water-absorbing rope accommodating cavity has multiple second water-absorbing ropes. The rope; an internal accommodating cavity is formed on the inner side of the inner cladding, and a plurality of third water-absorbing ropes are arranged in the internal accommodating cavity; the outer cladding is integrally extruded; the inner cladding includes an extruded layer, a plurality of first control cable cores located in the extruded layer, and a plurality of second control cable cores located in the extruded layer, the first control cable core includes a first conductor and a first insulating layer, and the second control cable core includes a second conductor and a second insulating layer; one side of the opening of the inner cladding has a plurality of first embedding protrusions, and the other side has a plurality of first embedding grooves that cooperate with the first embedding protrusions, and both sides of the opening of the inner cladding are connected to extended edges, and the two extended edges pass through the opening of the outer cladding; the extended edges also have The second embedding protrusion and the third embedding protrusion are provided on both sides of the opening of the outer sheath. There is also an optical cable between the flame retardant sheath and the outer sheath. The optical cable includes an optical cable sheath and two stainless steel tubes located in the optical cable sheath. The stainless steel tubes have optical fibers. The optical cable sheath has a third groove portion. The two extended edges extend into the third groove portion. The third groove portion has two third embedding grooves that cooperate with the third embedding protrusion. The outer sheath has an installation groove portion, and the installation groove portion includes a supporting groove, a slot connected to the supporting groove, and a fourth embedding groove connected to the slot. Each installation groove portion is at A pressure-resistant part is installed, and the pressure-resistant part includes a support unit with a V-shaped cross-section, an insertion unit connected to the support unit, and a strip-shaped embedded unit connected to the insertion unit, the insertion unit is inserted into the slot, and the strip-shaped embedded unit is embedded in the fourth embedded groove. Each pressure-resistant part is fixedly connected to a bracket unit by an adhesive, and the bracket unit includes a V-shaped part with a V-shaped cross-section and two arc-shaped parts with arc-shaped cross-sections located at both ends of the V-shaped part, the arc-shaped parts abut the outside of the outer sheath, and each V-shaped part is installed with a communication cable core, and a first water-absorbing rope is installed between the mutually close arc-shaped parts of two adjacent bracket units.

2. The high-efficiency shielded, moisture-proof and flame-retardant shipboard control cable according to claim 1, characterized in that: The outer side of the optical cable sheath has a first strip placement groove, a first strip plastic film is placed in the first strip placement groove, and the outer side of the first strip plastic film has a first strip test paper that changes color when exposed to water; the surfaces opposite to the two extended edges each have a second strip placement groove, a second strip plastic film is placed between the two second strip placement grooves, and both sides of the second strip plastic film have a second strip test paper that changes color when exposed to water.

3. The high-efficiency shielded, moisture-proof and flame-retardant shipboard control cable according to claim 2, characterized in that: The lengths of the first strip-shaped plastic film and the second strip-shaped plastic film are between 0.1 and 0.5 meters; both ends of the control cable are provided with the first strip-shaped plastic film and the second strip-shaped plastic film.

4. The high-efficiency shielded, moisture-proof and flame-retardant shipboard control cable according to claim 1, characterized in that: The cross section of the communication cable core is elliptical, and the communication cable core abuts the flame retardant wrapping layer. The outer side of the cross section of the optical cable is arc-shaped, and the optical cable abuts the flame retardant wrapping layer.

5. The high-efficiency shielded, moisture-proof and flame-retardant shipboard control cable according to claim 1, characterized in that: The extruded layer of the inner cladding and the two extended edges are extruded integrally; and the bracket unit is pressed and formed by a strip copper plate.

6. The high-efficiency shielded, moisture-proof and flame-retardant shipboard control cable according to claim 1, characterized in that: The number of the communication cable cores is equal to the number of the second control cable cores, and the number of the first control cable cores is one more than the number of the second control cable cores; the communication cable core includes a cable core sheath and two wire cores located in the cable core sheath, and the wire core includes a third insulation layer and a third conductor.

7. The high-efficiency shielded, moisture-proof and flame-retardant shipboard control cable according to claim 1, characterized in that: The first water-absorbing rope, the second water-absorbing rope and the third water-absorbing rope are all made of water-absorbing fibers; the flame-retardant wrapping layer is a mica tape wrapping layer; the shielding layer is a copper wire braided shielding layer; the armor layer is a steel wire armor layer; the inner sheath and the outer sheath are both polyvinyl chloride layers; the first insulation layer and the second insulation layer are both cross-linked polyethylene insulation layers.

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