High tensile corrosion resistant exploration power cable

Abstract

The application relates to the technical field of power cables, in particular to a high-tensile corrosion-resistant power cable for exploration, which solves the problem of poor stretchability in the length direction of the power cable outer skin and internal structure, and the risk of tearing or breaking of the internal conductor in the axial direction after the power cable is subjected to tension. The high-tensile corrosion-resistant power cable for exploration comprises an insulating outer skin, the inner side of the insulating outer skin is wrapped with a protective inner liner, the inner side of the protective inner liner is wrapped with a waterproof inner liner, the inner side of the waterproof inner liner is wrapped with a fireproof inner liner, the inner side of the fireproof inner liner is wrapped with an insulating inner liner, and the inner side of the insulating inner liner is wrapped with an armored shielding layer. The wire core bundle is bent and guided for installation, so that the power cable and the wire core bundle can stretch in the length direction after being subjected to tension, and the internal conductor is not affected by the tension, thereby improving the tensile property of the whole power cable.

Description

Technical Field

[0001] This invention relates to the field of power cable technology, specifically to high tensile strength and corrosion resistance power cables for exploration. Background Technology

[0002] Power cables are cables used to transmit and distribute high-power electrical energy. They consist of a conductor, insulation layer, shielding layer, and protective layer. They are mainly laid in urban underground power grids, power plant lead-out lines, and other scenarios. According to voltage level, they are divided into low-voltage, medium-voltage, high-voltage, and ultra-high-voltage cables. Insulation materials include polypropylene, cross-linked polyethylene, and other types. Exploration power cables are a type of power cable. Exploration power cables are special cables designed for field or downhole operations such as geological exploration, oil well logging, and seismic exploration. They are mainly used to transmit electrical energy, signals, or simultaneously bear mechanical loads.

[0003] Due to limitations in the outer sheath and internal structure of power cables, their elongation is poor. When power cables are subjected to tensile force, the internal conductors are stressed in the axial direction, posing a risk of tearing or breakage. Therefore, they do not meet current requirements. To address this, we propose a high-tensile-strength and corrosion-resistant power cable for exploration. Summary of the Invention

[0004] The purpose of this invention is to provide a high tensile strength and corrosion resistance power cable for exploration, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high tensile strength and corrosion resistance power cable for exploration, comprising an insulating outer sheath, an inner protective lining wrapped inside the insulating outer sheath, a waterproof lining wrapped inside the protective lining, a fireproof lining wrapped inside the waterproof lining, an insulating lining wrapped inside the fireproof lining, an armored shielding layer wrapped inside the insulating lining, and multiple core bundles wrapped inside the armored shielding layer.

[0006] The inner side of the armored shielding layer is also provided with a core bundle support module. The core bundle support module includes multiple isolation blocks that are equally spaced along the axial direction of the armored shielding layer. Multiple isolation end blocks arranged in a ring array are fixed on the outer side of the isolation blocks. One end of the isolation end block is provided with a positioning hole. A gathering strip is inserted inside the positioning hole. The core bundle passes through the inside of the installation guide tube. A gathering hollow rubber sleeve is provided between two adjacent isolation blocks. The gathering hollow rubber sleeve is sleeved on the outside of the gathering strip.

[0007] Preferably, a guide hole is provided through the middle of the isolation block, and a support strip is provided through the inside of the guide hole.

[0008] Preferably, the converging strip includes multiple fixed guide hollow tubes and multiple elastic connecting rubber tubes. The elastic connecting rubber tubes and the fixed guide hollow tubes are staggered and their ends are connected. Both ends of the fixed guide hollow tubes are fixed with connecting rings. The connecting rings have a J-shaped cross section. The elastic connecting rubber tubes are wrapped with multiple elastic shaping metal strips, which are V-shaped bends.

[0009] Preferably, both ends of the elastic shaping metal strip are bent in a U-shape towards the axis of the elastic connecting rubber tube, and the bent ends of the elastic connecting rubber tube are engaged with the mating ring. The fixed guide hollow tube and the elastic connecting rubber tube are provided with a hollow inner support hose inside, and the end of the hollow inner support hose is located inside the fixed guide hollow tube and is bonded to the fixed guide hollow tube by adhesive.

[0010] Preferably, the outer side of the insulating outer sheath, protective inner lining, waterproof inner lining, fireproof inner lining, insulating inner lining, and armored shielding layer are all provided with inwardly recessed grooves.

[0011] Preferably, the protective liner comprises, by weight, the following components:

[0012] 45-60 parts of polyetheretherketone

[0013] 10-20 parts of boron nitride nanosheets

[0014] A mixture of hindered amine light stabilizer and benzotriazole UV absorber, 1.5-3 parts.

[0015] 0.8-2 parts of ultra-high molecular weight polysiloxane

[0016] 2-6 parts of molybdenum disulfide.

[0017] Preferably, the waterproof lining comprises, by weight, the following components:

[0018] 50-70 parts of ethylene-butene copolymer and random copolymer polypropylene blend

[0019] 10-20 parts of organic modified bentonite and polyethylene oxide composite system

[0020] 4-8 parts of isocyanate-modified polyolefin

[0021] Salicylaldehyde ethylenediamine copper chelating agent 0.3-1.0 parts.

[0022] Preferably, the fire-resistant lining comprises the following components by weight:

[0023] 55-70 parts of ethylene-octene copolymer grafted with maleic anhydride and low-density polyethylene

[0024] 12-22 parts of organically modified montmorillonite

[0025] 5-12 parts of zirconium phosphate

[0026] 18-30 parts magnesium hydroxide

[0027] 2-4 parts of trimethylolpropane trimethacrylate.

[0028] Preferably, the insulating liner comprises, by weight, the following components:

[0029] 75-95 parts of polypropylene

[0030] 8-15 parts of ethylene-vinyl acetate copolymer

[0031] 0.5-2 parts of thiodipropionic acid diester

[0032] 8-18 parts of surface-modified nano-silica

[0033] 1-3 parts of triallyl isocyanurate.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] 1. This invention utilizes isolation blocks and isolation end blocks to suspend and support the wire core bundle passing through the bundle strip, while using a bundle hollow rubber sleeve to bundle the wire core bundle towards the center, so that the wire core bundle is in a bent state between adjacent isolation blocks. Thus, when the power cable is subjected to force in the length direction, the wire core bundle can extend in the length direction. During the extension process, the tensile force on the conductor material inside the wire core bundle in the length direction is small, thereby avoiding damage or breakage of the conductor inside the wire core bundle due to external tensile force.

[0036] 2. The present invention provides an inwardly recessed groove on the outside of the power cable, which allows the outer sheath and internal structural layer of the power cable to extend in the length direction, thereby preventing the outer sheath or internal structural layer of the power cable from tearing due to tensile force in the length direction, and ensuring the structural stability of the power cable.

[0037] 3. This invention uses a polyether ether ketone (PEEK) matrix and boron nitride nanosheets to form a protective liner, which enables the power cable to withstand corrosive media such as strong acids (pH 0-1), strong alkalis (pH 13-14), organic solvents, and salt spray, with a corrosion weight loss rate of ≤0.05% / year, which is superior to the traditional PVDF system. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the core bundle support module of the present invention;

[0040] Figure 3 This is a schematic diagram of the structure of the isolation block of the present invention;

[0041] Figure 4 This is a schematic diagram of the structure of the hollow rubber sleeve of the present invention;

[0042] Figure 5 This is a cross-sectional view of the structure of the gathering strip of the present invention;

[0043] Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle.

[0044] In the diagram: 1. Insulating outer sheath; 2. Protective inner lining; 3. Waterproof inner lining; 4. Fireproof inner lining; 5. Insulating inner lining; 6. Armored shielding layer; 7. Core bundle support module; 701. Isolation block; 702. Isolation end block; 703. Positioning hole; 704. Bundling strip; 7041. Fixed guide hollow tube; 7042. Flexible connecting rubber tube; 7043. Flexible shaping metal strip; 7044. Hollow inner support flexible tube; 7045. Butt ring; 705. Bundling hollow rubber sleeve; 706. Guide hole; 8. Support strip; 9. Core bundle. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0046] like Figure 1 As shown, a high tensile strength and corrosion resistant exploration power cable includes an insulating outer sheath 1, a protective inner lining 2 wrapped inside the insulating outer sheath 1, a waterproof inner lining 3 wrapped inside the protective inner lining 2, a fireproof inner lining 4 wrapped inside the waterproof inner lining 3, an insulating inner lining 5 wrapped inside the fireproof inner lining 4, an armored shielding layer 6 wrapped inside the insulating inner lining 5, and multiple core bundles 9 wrapped inside the armored shielding layer 6.

[0047] The outer sides of the insulating outer sheath 1, protective inner lining 2, waterproof inner lining 3, fireproof inner lining 4, insulating inner lining 5, and armored shielding layer 6 are all provided with inwardly recessed grooves. The presence of the grooves allows the insulating outer sheath 1, protective inner lining 2, waterproof inner lining 3, fireproof inner lining 4, insulating inner lining 5, and armored shielding layer 6 to stretch in the length direction when the power cable is subjected to force. The stretching is a physical change, and the internal materials are subjected to less force in the length direction.

[0048] The external groove of the insulating outer skin 1, protective inner lining 2, waterproof inner lining 3, fireproof inner lining 4, insulating inner lining 5, and armored shielding layer 6 is formed by rolling a roller around the axis on the outside of the insulating outer skin 1, protective inner lining 2, waterproof inner lining 3, fireproof inner lining 4, insulating inner lining 5, and armored shielding layer 6 after extrusion injection molding and before they have completely cooled.

[0049] As a preferred embodiment, the protective liner 2 comprises the following components by weight:

[0050] 45-60 parts of polyetheretherketone

[0051] 10-20 parts of boron nitride nanosheets

[0052] A mixture of hindered amine light stabilizer and benzotriazole UV absorber, 1.5-3 parts.

[0053] 0.8-2 parts of ultra-high molecular weight polysiloxane

[0054] 2-6 parts of molybdenum disulfide.

[0055] The preparation examples of protective liner 2 are as follows:

[0056] Add 10-20 parts of boron nitride nanosheets (BNNS) and 2-6 parts of molybdenum disulfide (MoS2) to a high-speed mixer, add 0.5-1 parts of silane coupling agent, and mix at 80-90℃ for 10-15 minutes to achieve surface organic modification.

[0057] Hindered amine light stabilizer (HALS) and benzotriazole ultraviolet absorber (UV-P) are mixed at a ratio of 1:1 to 2:1 and then premixed with ultra-high molecular weight polysiloxane;

[0058] Add 45-60 parts of polyetheretherketone (PEEK), the surface-treated composite filler, and the additive compound system into a high-speed mixer and mix at 80-100℃ for 15-25 minutes.

[0059] Add to a twin-screw extruder for melt blending at a temperature of 320-380℃ and a screw speed of 300-500 rpm, and granulate under nitrogen protection;

[0060] The surface of the waterproof layer is subjected to plasma treatment at a power of 500W and a processing speed of 5-10 meters per minute.

[0061] The special material is coated onto the outside of the waterproof layer using a high-temperature single-screw extruder at an extrusion temperature of 340-380℃, with a coating thickness of 1.0-1.8mm.

[0062] It is cooled in three stages: 150-180℃ warm water, 80-100℃ warm water, and room temperature air cooling;

[0063] Annealing treatment: Hold at 120-150℃ for 2-4 hours to eliminate internal stress and increase crystallinity by 30%-35%.

[0064] As a preferred embodiment, the waterproof liner 3 comprises the following components by weight:

[0065] 50-70 parts of ethylene-butene copolymer and random copolymer polypropylene blend

[0066] 10-20 parts of organic modified bentonite and polyethylene oxide composite system

[0067] 4-8 parts of isocyanate-modified polyolefin

[0068] Salicylaldehyde ethylenediamine copper chelating agent 0.3-1.0 parts.

[0069] The preparation examples of waterproof liner 3 are as follows:

[0070] Organically modified bentonite and polyethylene oxide (PEO) are premixed in a certain proportion and mixed at 40-50℃ for 10 minutes to form a "core-shell" structured water-absorbing composite.

[0071] The isocyanate-modified polyolefin (IP-g-PO) and the water-absorbing composite material were stirred at 60-70℃ for 5 minutes to achieve chemical pre-bonding;

[0072] Add 50-70 parts of POE / PPR blend, compatibilized water-absorbing composite material, and 0.3-1.0 parts of salicylaldehyde ethylenediamine copper chelating agent to a high-speed mixer and mix at 60-80℃ for 12-20 minutes.

[0073] Add to a twin-screw extruder for melt blending at a temperature of 150-210℃ and a screw speed of 250-400 rpm, then granulate.

[0074] The special material is coated onto the outside of the fireproof layer using a single-screw extruder at an extrusion temperature of 170-210℃ and a coating thickness of 1.2-2.0mm.

[0075] It is cooled in three stages: 60-70℃ warm water, 30-40℃ room temperature water, and room temperature air cooling.

[0076] As a preferred embodiment, the fireproof lining 4 comprises the following components by weight:

[0077] 55-70 parts of ethylene-octene copolymer grafted with maleic anhydride and low-density polyethylene

[0078] 12-22 parts of organically modified montmorillonite

[0079] 5-12 parts of zirconium phosphate

[0080] 18-30 parts magnesium hydroxide

[0081] 2-4 parts of trimethylolpropane trimethacrylate.

[0082] The preparation examples of fireproof lining 4 are as follows:

[0083] Add 55-70 parts of POE-g-MAH / LDPE blend, 12-22 parts of organically modified montmorillonite, 5-12 parts of zirconium phosphate, 18-30 parts of magnesium hydroxide, and 2-4 parts of trimethylolpropane trimethacrylate to a high-speed mixer and mix at 50-70°C for 10-20 minutes.

[0084] Add to a twin-screw extruder for melt blending at a temperature of 140-200℃ and a screw speed of 250-400 rpm, then granulate.

[0085] The special material is coated onto the outside of the inner insulation layer using a single-screw extruder at an extrusion temperature of 160-200℃ and a coating thickness of 1.2-2.0mm.

[0086] Crosslinking is achieved through electron accelerator irradiation with an electron beam energy of 1.5-2.5 MeV, an irradiation dose of 100-150 kGy, and a crosslinking degree of 65%-80%.

[0087] As a preferred embodiment, the insulating liner 5 comprises the following components by weight:

[0088] 75-95 parts of polypropylene

[0089] 8-15 parts of ethylene-vinyl acetate copolymer

[0090] 0.5-2 parts of thiodipropionic acid diester

[0091] 8-18 parts of surface-modified nano-silica

[0092] 1-3 parts of triallyl isocyanurate.

[0093] The preparation examples of insulating liner 5 are as follows:

[0094] Add 75-95 parts of polypropylene (PP), 8-15 parts of ethylene-vinyl acetate copolymer (EVA), 0.5-2 parts of dithiodipropionate diester (DSTDP), 8-18 parts of surface-modified nano silica, and 1-3 parts of triallyl isocyanurate (TAIC) to a high-speed mixer and mix at 60-80°C for 8-15 minutes.

[0095] Add to a twin-screw extruder for melt blending at a temperature of 160-230℃ and a screw speed of 200-400 rpm, then granulate.

[0096] The special material is coated onto the surface of the conductive wire core using a single-screw extruder at an extrusion temperature of 190-230℃ and a coating thickness of 1.5-3.0mm.

[0097] Crosslinking is achieved through electron accelerator irradiation with electron beam energy of 1.5-3.0 MeV, irradiation dose of 80-150 kGy, and crosslinking degree of 65%-85%.

[0098] like Figures 2 to 6 As shown, the inner side of the armored shielding layer 6 is also provided with a core bundle support module 7. The core bundle support module 7 includes multiple isolation blocks 701 evenly distributed along the axial direction of the armored shielding layer 6. Multiple isolation end blocks 702 arranged in a ring array are fixed on the outer side of the isolation blocks 701. One end of the isolation end block 702 is provided with a positioning hole 703. A gathering strip 704 is inserted into the inner side of the positioning hole 703. The core bundle 9 passes through the inside of the installation guide tube. A gathering space is provided between two adjacent isolation blocks 701. The hollow rubber sleeve 705 is fitted on the outside of the bundling strip 704. The isolation block 701 and the isolation end block 702 support the wire core bundle 9, so that the adjacent wire core bundles 9 do not interfere with each other. At the same time, the hollow rubber sleeve 705 is used to shrink the wire core bundles 9 inserted inside the bundling strip 704 inward, so that the wire core bundles 9 bend, thereby allowing the wire core bundles 9 to extend in the length direction. During the extension process, the conductor inside the wire core bundle 9 experiences minimal force in the length direction.

[0099] A guide hole 706 is provided through the middle of the isolation block 701, and a support strip 8 is provided inside the guide hole 706. The support strip 8 is used to support the isolation block 701, so that the adjacent isolation blocks 701 are of the same height and their axes coincide.

[0100] The gathering strip 704 includes multiple fixed guide hollow tubes 7041 and multiple elastic connecting rubber tubes 7042. The elastic connecting rubber tubes 7042 and the fixed guide hollow tubes 7041 are staggered and connected at their ends. Both ends of the fixed guide hollow tubes 7041 are fixed with connecting rings 7045. The connecting rings 7045 have a J-shaped cross-section. Multiple elastic shaping metal strips 7043 are wrapped inside the elastic connecting rubber tubes 7042. The elastic shaping metal strips 7043 are V-shaped and support the elastic connecting rubber tubes 7042 from the inside, so that the elastic connecting rubber tubes 7042 have a certain rigidity, ensuring that the core bundle 9 can pass smoothly through the middle of the elastic connecting rubber tubes 7042. The elastic shaping metal strips 7043 are also elastic, and after the elastic connecting rubber tubes 7042 are stretched under force, they drive the elastic connecting rubber tubes 7042 to elastically recover.

[0101] Both ends of the elastic shaping metal strip 7043 are bent in a U-shape towards the axis of the elastic connecting rubber tube 7042. The bent ends of the elastic connecting rubber tube 7042 are engaged with the mating ring 7045. The fixed guide hollow tube 7041 and the elastic connecting rubber tube 7042 are provided with a hollow inner support hose 7044. The end of the hollow inner support hose 7044 is located inside the fixed guide hollow tube 7041 and is bonded to the fixed guide hollow tube 7041 with adhesive. The hollow inner support hose 7044 is used to raise the support from inside the elastic shaping metal strip 7043. When the elastic connecting rubber tube 7042 is injection molded and the elastic shaping metal strip 7043 is wrapped, it is ensured that the molded elastic connecting rubber tube 7042 is fixed to the end of the fixed guide hollow tube 7041, while the inside of the elastic connecting rubber tube 7042 remains hollow.

[0102] When producing power cables, the support bar 8 is first passed through the middle of the guide hole 706 to connect and support the adjacent isolation blocks 701. Then, the wire core bundle 9, which is wrapped with conductors inside, is passed through one end of the bundling bar 704, so that the wire core bundle 9 passes through the other end of the bundling bar 704. Since the bundling bar 704 is between the two isolation blocks 701, it is completely moved towards the support bar 8 due to the bundling of the hollow rubber sleeve 705. Therefore, the wire core bundle 9 passing through the inside of the bundling bar 704 will bend at the same time, changing the straight wiring form of the general wire core bundle 9 to a bent wiring form.

[0103] After the wire core bundle 9 is installed, the support bar 8 is pulled out. Then, the armor shielding layer 6 is wrapped around the wire core bundle support module 7 and the wire core bundle 9. Then, the insulation liner 5, fireproof liner 4, waterproof liner 3, protective liner 2 and insulation outer skin 1 are extruded from the inside out using an extrusion injection molding process. This allows the insulation liner 5, fireproof liner 4, waterproof liner 3, protective liner 2 and insulation outer skin 1 to wrap the wire core bundle support module 7 and the wire core bundle 9. The insulation liner 5, fireproof liner 4, waterproof liner 3, protective liner 2 and insulation outer skin 1 are extruded in sequence, but before they are completely cooled, a roller is used to roll around the axis of the support bar 8 to form grooves that are evenly distributed along the length of the power cable in the insulation liner 5, fireproof liner 4, waterproof liner 3, protective liner 2 and insulation outer skin 1.

[0104] When the power cable is subjected to tension in the length direction, the power cable has an inwardly recessed groove on its exterior, which allows the outer sheath and internal structural layers of the power cable to stretch in the length direction. At the same time, since the core bundle 9 is a bent wiring method, when the power cable is subjected to force in the length direction, the core bundle 9 can stretch in the length direction. During the stretching process, the tensile force on the conductor material inside the core bundle 9 in the length direction is less affected, thereby improving the tensile performance of the power cable.

[0105] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high tensile strength and corrosion resistant exploration power cable, comprising an insulating sheath (1), characterized in that: The inner side of the insulating outer sheath (1) is wrapped with a protective inner lining (2), the inner side of the protective inner lining (2) is wrapped with a waterproof inner lining (3), the inner side of the waterproof inner lining (3) is wrapped with a fireproof inner lining (4), the inner side of the fireproof inner lining (4) is wrapped with an insulating inner lining (5), the inner side of the insulating inner lining (5) is wrapped with an armored shielding layer (6), and the inner side of the armored shielding layer (6) is wrapped with multiple wire core bundles (9). The inner side of the armor shielding layer (6) is also provided with a core bundle support module (7). The core bundle support module (7) includes multiple isolation blocks (701) that are equally spaced along the axial direction of the armor shielding layer (6). Multiple isolation end blocks (702) arranged in a ring array are fixed on the outer side of the isolation block (701). One end of the isolation end block (702) is provided with a positioning hole (703). A gathering strip (704) is inserted into the inner side of the positioning hole (703). The core bundle (9) passes through the inside of the installation guide tube. A gathering hollow rubber sleeve (705) is provided between two adjacent isolation blocks (701). The gathering hollow rubber sleeve (705) is sleeved on the outside of the gathering strip (704).

2. The high tensile strength and corrosion resistance power cable for exploration according to claim 1, characterized in that: The isolation block (701) has a guide hole (706) through the middle, and a support strip (8) passes through the inside of the guide hole (706).

3. The high tensile strength and corrosion resistance power cable for exploration according to claim 1, characterized in that: The gathering strip (704) includes multiple fixed guide hollow tubes (7041) and multiple elastic connecting rubber tubes (7042). The elastic connecting rubber tubes (7042) and the fixed guide hollow tubes (7041) are staggered and connected at their ends. Both ends of the fixed guide hollow tubes (7041) are fixed with connecting rings (7045). The connecting rings (7045) have a J-shaped cross section. The elastic connecting rubber tubes (7042) are wrapped with multiple elastic shaping metal strips (7043). The elastic shaping metal strips (7043) are V-shaped.

4. The high tensile strength and corrosion resistance power cable for exploration according to claim 3, characterized in that: Both ends of the elastic shaping metal strip (7043) are bent in a U-shape towards the axis of the elastic connecting rubber tube (7042). The bent end of the elastic connecting rubber tube (7042) is engaged with the docking ring (7045). The interior of the fixed guide hollow tube (7041) and the elastic connecting rubber tube (7042) is provided with a hollow inner support hose (7044). The end of the hollow inner support hose (7044) is located inside the fixed guide hollow tube (7041) and is bonded to the fixed guide hollow tube (7041) by adhesive.

5. The high tensile strength and corrosion resistance power cable for exploration according to claim 1, characterized in that: The outer side of the insulating outer skin (1), protective inner lining (2), waterproof inner lining (3), fireproof inner lining (4), insulating inner lining (5), and armored shielding layer (6) are all provided with inwardly recessed grooves.

6. The high tensile strength and corrosion resistance power cable for exploration according to claim 1, characterized in that: The protective liner (2) comprises, by weight, the following components: 45-60 parts of polyetheretherketone 10-20 parts of boron nitride nanosheets A mixture of hindered amine light stabilizer and benzotriazole UV absorber, 1.5-3 parts. 0.8-2 parts of ultra-high molecular weight polysiloxane 2-6 parts of molybdenum disulfide.

7. The high tensile strength and corrosion resistance power cable for exploration according to claim 1, characterized in that: The waterproof lining (3) comprises, by weight, the following components: 50-70 parts of ethylene-butene copolymer and random copolymer polypropylene blend 10-20 parts of organic modified bentonite and polyethylene oxide composite system 4-8 parts of isocyanate-modified polyolefin Salicylaldehyde ethylenediamine copper chelating agent 0.3-1.0 parts.

8. The high tensile strength and corrosion resistance power cable for exploration according to claim 1, characterized in that: The fireproof lining (4) comprises the following components by weight: 55-70 parts of ethylene-octene copolymer grafted with maleic anhydride and low-density polyethylene 12-22 parts of organically modified montmorillonite 5-12 parts of zirconium phosphate 18-30 parts magnesium hydroxide 2-4 parts of trimethylolpropane trimethacrylate.

9. The high tensile strength and corrosion resistance power cable for exploration according to claim 1, characterized in that: The insulating liner (5) comprises, by weight, the following components: 75-95 parts of polypropylene 8-15 parts of ethylene-vinyl acetate copolymer 0.5-2 parts of thiodipropionic acid diester 8-18 parts of surface-modified nano-silica 1-3 parts of triallyl isocyanurate.

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