High-efficiency shielding, high-efficiency moisture-proof and flame-retardant marine control cable

Abstract

The invention discloses an efficient-shielding efficient-moisture-proof flame-retardant marine control cable which comprises an outer protection layer, an armor layer, an inner protection layer, a water-blocking wrapping layer, a shielding layer and a flame-retardant wrapping layer, an outer wrapping layer and an inner wrapping layer are arranged in the flame-retardant wrapping layer, and a plurality of communication cable cores and a plurality of first water absorption ropes are arranged between the outer wrapping layer and the flame-retardant wrapping layer. According to the control cable provided by the invention, the whole control cable adopts a multi-layer cladding structure, and is matched with the voltage-withstanding part and the bracket unit, so that the cable has relatively good mechanical performance and a good voltage-withstanding effect. The control cable is provided with the optical cable, the communication cable core and the control cable core, so that better communication and control effects can be realized. The cable is internally provided with a plurality of water absorption ropes, so that even if a small amount of water vapor enters the cable, the water vapor absorption effect is relatively good. When the cable is installed and connected from the end part of the cable, the use condition of the cable can be judged through the test paper at the end part.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and more specifically 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 river and sea vessels, oil platforms and other water structures, such as ship main engine control, steering gear control, light signal control, etc. It is an indispensable part of the ship's electrical system, mainly used to transmit control signals to ensure the normal operation of various control devices and systems on the ship.

[0003] There are many devices that need to be used on long-distance sailing ships, and the ships sail on the sea all year round. The operating environment is relatively harsh. The ships will experience severe shaking, vibration and impact, which puts high demands on the mechanical strength of marine cables. If the mechanical properties of traditional marine control cables are insufficient, they are prone to wear and tear, breakage and other problems during long-term use, affecting the reliability and service life of the cables. In addition, in the marine environment, the cables need to withstand the pressure from seawater. If the pressure resistance of the cable is not good, it may cause the cable to break, leading to safety problems such as short circuit and leakage. In addition, seawater is highly corrosive. If the waterproof and moisture-proof performance of the cable is not good, water vapor will penetrate into the cable, corrode the cable core, affect the signal transmission quality, and even cause the cable to fail. 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 marine control cable.

[0005] In order to achieve the above-mentioned purpose, 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 sheath, a shielding layer and a flame-retardant sheath, wherein the flame-retardant sheath has an outer sheath and an inner sheath, and between the outer sheath and the flame-retardant sheath are multiple communication cable cores and multiple first water-absorbing ropes.

[0006] Further, the inner envelope is a circular ring with an opening, and the outer side of the inner envelope has a plurality of first groove portions; the outer envelope is a circular ring with an opening, and the inner side of the outer envelope 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, and the corresponding first groove portions and second groove portions form a water-absorbent rope accommodating cavity, and each water-absorbent rope accommodating cavity has a plurality of second water-absorbent ropes; an internal accommodating cavity is formed on the inner side of the inner envelope, and the internal accommodating cavity has a plurality of third water-absorbent 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 absorption effect of the water vapor 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 integrally extruded; 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 enables the cable to have a better pressure resistance effect, and 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, both sides of the opening of the inner cladding are connected with extension edges, and the two extension edges pass through the opening of the outer cladding; the extension edges are also provided with second embedding protrusions and third embedding protrusions, and both sides of the opening of the outer cladding have second embedding grooves that cooperate with the second embedding protrusions; an optical cable is also provided between the flame-retardant winding cladding 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 extension 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 an installation recess The groove portion comprises a supporting groove, a slot connected to the supporting groove and a fourth embedding groove connected to the slot, a pressure-resistant portion is installed at each installing groove portion, the pressure-resistant portion comprises 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, 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 comprises 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 against 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 part and the bracket unit surround the outer envelope, achieving a good pressure-resistant effect.

[0014] Further, 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 in the shape of strips 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 in the shape of strips extending along the length direction of the control cable.

[0017] Thereby enhancing 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, whether the cable is used properly and whether the inside of the cable is corroded by water vapor can be judged based on whether the test paper changes color.

[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 sheathing layer, the outer side of the cross-section of the optical cable is arc-shaped, and the optical cable abuts the flame-retardant sheathing layer.

[0023] Therefore, the flame retardant sheath 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 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 core includes a third insulation layer and a third conductor.

[0029] Furthermore, the first water-absorbent rope, the second water-absorbent rope and the third water-absorbent rope are all made of water-absorbent 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] Thus 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 cooperates with the pressure-resistant part and the 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 an optical cable, a communication cable core and a control cable core, thereby being able to achieve better communication and control effects.

[0044] 3. The control cable of the present application has a large amount of water-absorbing rope accommodating space inside and has multiple water-absorbing ropes, so that 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 effect of water vapor on the cable core.

[0045] 4. When the control cable of the present application is installed and connected from the end of the cable, the use of the cable and whether it is damaged can be judged by the test paper at the end, so as to better maintain 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] Fig. 9 It is a schematic diagram of the pressure-resistant part, bracket unit and communication cable core;

[0055] Fig.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 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] Embodiments of the present invention are described in detail below, 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 should not be construed as limiting the present invention.

[0058] The present invention provides Figure 1-10The shown is a high-efficiency shielded, high-efficiency moisture-proof and flame-retardant ship control cable, which includes, from the outside to the inside, an outer sheath 1.1, an armor layer 1.2, an inner sheath 1.3, a water-blocking sheath 1.4, a shielding layer 1.5 and a flame-retardant sheath 1.6, wherein the flame-retardant sheath 1.6 has an outer sheath 2 and an inner sheath 3, and between the outer sheath 2 and the flame-retardant sheath 1.6 there are a plurality of communication cable cores 4 and a plurality of first water-absorbing ropes 5. The inner cladding 3 is an open annular shape, and the outer side of the inner cladding 3 has a plurality of first grooves 3.1. The outer cladding 2 is an open annular shape, and the inner side of the outer cladding 2 has a plurality of second grooves 2.1. The number of the first grooves 3.1 is equal to the number of the second grooves 2.1 and the two correspond to each other. The corresponding first grooves 3.1 and second grooves 2.1 form a water-absorbing rope accommodating cavity, and each water-absorbing rope accommodating cavity has a plurality of second water-absorbing ropes 6. The inner side of the inner cladding 3 forms an internal accommodating cavity 3.2, and the internal accommodating cavity 3.2 has a plurality of third water-absorbing ropes 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 in the extruded layer 3.3, and a plurality of second control cable cores located in the extruded layer 3.3. The first control cable core includes a first conductor 8.1 and a first insulating layer 8.2, and the second control cable core includes a second conductor 8.3 and a second insulating 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 matched with the first embedding protrusions 3.4. Both sides of the opening of the inner cladding are connected with 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 matched 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 includes 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 have optical fibers 9.3, the optical cable sheath 9.1 has a third groove portion 9.4, the two extended edges 3.5 extend into the third groove portion 9.4, the third groove portion 9.4 has two third embedded grooves 9.5 that cooperate 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 connected to the support groove 2.2, and a fourth embedded groove 2.4 connected to the slot 2.3, wherein a pressure-resistant portion 10 is installed at each mounting groove portion, and 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, wherein 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 an 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 against the outer side of the outer sheath 2, and a communication cable core 4 is installed at each V-shaped part 11.1, 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 plastic film 12 is placed, and the outer side of the first strip plastic film 12 has a first strip test paper 12.1 that changes color when it comes into contact with water; the surfaces opposite to the two extended edges 3.5 each have a second strip placement groove 3.8, between which a second strip plastic film 13 is placed, and both sides of the second strip plastic film 13 have a second strip test paper 13.1 that changes color when it comes into contact with water. The lengths of the first strip plastic film 12 and the second strip plastic film 13 are between 0.1 and 0.5 meters; both ends of the control cable have the first strip plastic film 12 and the second strip plastic film 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 by a strip 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 in the cable core sheath 4.1, and the wire core includes a third insulating 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 sheath 1.6 is a mica tape sheath; 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] When producing 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 integrally extruded and molded, and then the 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 extruded and installed into the corresponding installation groove part, and then the inner sheath is wrapped with the outer sheath. When wrapping, the second water-absorbing rope is placed in the corresponding water-absorbing rope accommodating cavity. When wrapping is completed, the second embedding protrusion is embedded in the second embedding groove, and the optical cable is used to make 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 sequentially manufactured.

[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, so as to realize the transmission of more control signals, communication signals and optical signals. And 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, so as to realize the pressure-resistant effect. And the surrounding arrangement of the outer sheath and the inner sheath realizes that the cable has a better pressure-resistant effect, so that the cable has better mechanical properties. And the structural arrangement of the inner sheath, the outer sheath and the multiple bracket units, so that multiple first water-absorbing ropes, multiple second water-absorbing ropes and multiple third water-absorbing ropes can be arranged inside the cable, so that even if the outside of the cable is a little damaged, some water vapor entering the inside of the cable can also be absorbed by the first, second and third water-absorbing ropes, so as to avoid the adverse effect of water vapor on the inside of the cable. In addition, a first strip test paper and a second strip test paper are provided at both ends of the cable, so that when the cable is used, if a comprehensive inspection is needed, the cable end can be inspected (the cable end is more susceptible to water vapor erosion when the cable is connected using a cable connector). The cable use can be judged to see whether the cable is used properly and whether the cable is corroded by water vapor. The first strip test paper is located inside the flame-retardant wrapping layer, and the second strip test paper is located between the two extended edges, so that the test paper is more reasonably positioned and can better reflect the situation inside the cable.

[0063] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be appreciated 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 highly efficient shielded, moisture-proof and flame-retardant marine control cable, characterized in that: From the outside to the inside, it includes an outer protective layer, an armor layer, an inner protective layer, a water-blocking wrapping layer, a shielding layer and a flame-retardant wrapping layer. The flame-retardant wrapping layer has an outer wrapping layer and an inner wrapping layer. There are multiple communication cable cores and multiple first water-absorbing ropes between the outer wrapping layer and the flame-retardant wrapping layer.

2. The high-efficiency shielded, high-efficiency moisture-proof and flame-retardant shipboard control cable according to claim 1 is characterized in that: The inner cladding is in the shape of a ring with an opening, and the outer side of the inner cladding has a plurality of first groove portions; the outer cladding is in the shape of a 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 the second groove portions form a water-absorbent rope accommodating cavity, and each water-absorbent rope accommodating cavity has a plurality of second water-absorbent 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-absorbent ropes.

3. The high-efficiency shielded, high-efficiency moisture-proof and flame-retardant shipboard control cable according to claim 2 is characterized in that: The outer sheath is integrally extruded; 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, wherein 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.

4. The high-efficiency shielded, high-efficiency moisture-proof and flame-retardant shipboard control cable according to claim 3 is characterized in that: 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 match the first embedding protrusions. Both sides of the opening of the inner cladding are connected with extension edges, and the two extension edges pass through the opening of the outer cladding; the extension edges are also provided with second embedding protrusions and third embedding protrusions, and both sides of the opening of the outer cladding have second embedding grooves that match the second embedding protrusions; an optical cable is also provided between the flame-retardant winding layer and the outer cladding, and the optical cable includes an optical cable cladding and two stainless steel tubes located in the optical cable cladding, and the stainless steel tubes have optical fibers, and the optical cable cladding has a third groove portion, and the two extension edges extend into the third groove portion, and the third groove portion has two third embedding grooves that match the third embedding protrusions; the outer cladding has an installation 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. A pressure-resistant portion is installed at each installation groove portion, and 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, and the arc-shaped portions abut against the outer side of the outer sheath. A communication cable core is installed at each V-shaped portion, and a first water-absorbing rope is installed between the mutually close arc-shaped portions of two adjacent bracket units.

5. The high-efficiency shielded, high-efficiency moisture-proof and flame-retardant shipboard control cable according to claim 4 is characterized in that: The outer side of the optical cable sheath is provided with a first strip placement groove, a first strip plastic film is placed in the first strip placement groove, and a first strip test paper that changes color when exposed to water is provided on the outer side of the first strip plastic film; the surfaces opposite to the two extended edges are provided with a second strip placement groove, a second strip plastic film is placed between the two second strip placement grooves, and second strip test papers that change color when exposed to water are provided on both sides of the second strip plastic film.

6. The high-efficiency shielded, high-efficiency moisture-proof and flame-retardant shipboard control cable according to claim 5, 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.

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

8. The high-efficiency shielded, high-efficiency moisture-proof and flame-retardant shipboard control cable according to claim 4, 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.

9. The high-efficiency shielded, high-efficiency moisture-proof and flame-retardant shipboard control cable according to claim 4, 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 comprises a cable core sheath and two wire cores located in the cable core sheath, and the wire core comprises a third insulation layer and a third conductor.

10. The high-efficiency shielded, high-efficiency moisture-proof and flame-retardant shipboard control cable according to claim 4, 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 insulating layer and the second insulating layer are both cross-linked polyethylene insulating layers.

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