The present application belongs to the technical field of marine cables. Provided are a marine umbilical cable and a device. The marine umbilical cable comprises several first cable units, several second cable units, a first shielding layer and a second shielding layer, wherein the first cable units and the second cable units are respectively stranded into cables, and there is a conductive fluid between the first cable units and the second cable units; the first shielding layer completely covers the peripheral side of the several first cable units, and is located between the first cable units and the second cable units; the second shielding layer completely covers the peripheral side of the several second cable units; and the surfaces of the first shielding layer and the second shielding layer both have wrinkles. Using the separation design of medium-voltage and low-voltage power transmission structures, and using independent shielding measures for medium and low voltages reduce the electromagnetic interference between medium and low voltages, improve the fatigue resistance of the umbilical cable, also improve the pressure resistance of the umbilical cable under high water pressure, and reduce the radial shrinkage of the umbilical cable.
H01B 9/02 - Câbles de transport d'énergie avec écrans ou couches conductrices, p. ex. en vue d'éviter des gradients de potentiel élevés
H01B 7/04 - Câbles, conducteurs ou cordons flexibles, p. ex. câbles traînants
H01B 7/18 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'usure, la contrainte mécanique ou la pression
2.
SUBMARINE CABLE MANUFACTURING METHOD AND SUBMARINE CABLE
The present application relates to the technical field of submarine cables, and provides a submarine cable manufacturing method and a submarine cable. The submarine cable manufacturing method comprises: using a frame stranding machine to perform primary stranding to strand a central line, a first conductor layer and an optical fiber transmission layer of a submarine cable; and using a frame stranding machine to perform secondary stranding to strand a second conductor layer of the submarine cable, wherein the frame stranding machines of the same specification are used for primary stranding and secondary stranding. According to the submarine cable manufacturing method provided by the present application, a submarine cable having a large sectional area can be manufactured by using the frame stranding machines of existing specifications, so that the cost of increasing the sectional area of the submarine cable is low.
CHONGQING QIANWEI TECHNOLOGIES GROUP CO., LTD. (Chine)
ZHONGTIAN TECHNOLOGY MARINE SYSTEMS CO., LTD. (Chine)
Inventeur(s)
Su, Jian
Ren, Chenggang
Chen, You
Zhang, Xiao
Guo, Chaoyang
Yuan, Chen
Wen, Xiaolin
Wang, Juan
Meng, Yantao
Abrégé
A photoelectric hybrid watertight connector, relating to the technical field of photoelectric connectors. The photoelectric hybrid watertight connector comprises a plug and a socket. The plug comprises a first optical ferrule assembly (11) and a first optical cable; the first optical ferrule assembly (11) comprises a first housing (113) and a plug optical ferrule (111); and a first adhesive group is filled between the first optical cable and the first housing (113). The socket comprises a second optical ferrule assembly (21) and a second optical cable; the second optical ferrule assembly (21) comprises a second housing (212) and a socket optical ferrule (211); and a second adhesive group is filled between the second optical cable and the second housing (212). The first adhesive group comprises a sealant (1161) and a structural adhesive (1162), the sealant (1161) and the structural adhesive (1162) are distributed in the axial direction of the plug, and the structural adhesive (1162) is provided at a position distant from the plug optical ferrule (111); and/or the second adhesive group comprises a sealant (1161) and a structural adhesive (1162), the sealant (1161) and the structural adhesive (1162) are distributed in the axial direction of the socket, and the structural adhesive (1162) is provided at a position distant from the socket optical ferrule (211). The photoelectric hybrid watertight connector has good longitudinal watertightness, reduces the radial size, and conforms to the miniaturization development trend of photoelectric hybrid watertight connectors.
A light and environmentally-friendly high-voltage cable and a manufacturing method therefor. A conductor core is provided in the center of the light and environmentally-friendly high-voltage cable; a semiconductor electrical wrapping tape surrounds the outer side of the conductor core; a conductor shielding layer surrounds the outer side of the semiconductor electrical wrapping tape; an insulating layer is provided on the outer side of the conductor shielding layer, the insulating layer contains a modified polypropylene insulating material, and the polypropylene insulating material is subjected to air separation for impurity removal by means of an impurity removal device and is then guided to an extruder for extrusion, so as to obtain the insulating layer; an insulating shielding layer surrounds the outer side of the insulating layer; a semi-conductive waterproof layer is provided on the outer side of the insulating shielding layer; a metallic sheath is provided on the outer side of the semi-conductive waterproof layer, and the metal sheath is formed by an open helically wound profiled copper wire combined with a smooth copper sheath; an anti-corrosion layer is provided on the outer side of the metal sheath; a flame-retardant sheath is provided on the outer side of the anti-corrosion layer; and a conductive layer is provided on the outer side of the flame-retardant sheath.
H01B 7/20 - Tubes métalliques, p. ex. gaines de plomb
H01B 7/22 - Fils rubans ou métalliques, p. ex. d'acier
H01B 11/06 - Câbles à paires ou quartes torsadées pourvus de moyens propres à réduire les effets de perturbations électromagnétiques ou électrostatiques, p. ex. écrans
A dynamic submarine cable, comprising a cable core, a cabling tape wrapping layer, an inner sheath, an armor layer, and an outer sheath. The cable core comprises wire cores and filling members. A filling member is arranged between each two adjacent wire cores and the cabling tape wrapping layer. A first abutting portion, a second abutting portion, and a third abutting portion of the filling member are arc-shaped, the first abutting portion and the second abutting portion are attached to the two wire cores adjacent thereto, and the third abutting portion is attached to the cabling tape wrapping layer. Each wire core comprises a conductor, a conductor shielding layer, an insulating layer, an insulating shielding layer, a first water blocking tape wrapping layer, a metal composite fiber shielding layer, a second water blocking tape wrapping layer, and an inner protective layer. According to the dynamic submarine cable, a cavity is filled by means of the filling members, so that the cross-sectional shape of the cable core is close to a circle; and the metal composite fiber shielding layer has better fatigue resistance than existing shielding structures, thereby solving the problems in the prior art of poor roundness of dynamic cables and poor fatigue resistance of shielding structures.
A submarine cable, and a preparation method therefor and the use thereof. The submarine cable comprises an insulating layer. The insulating layer is made of polyethylene, a vulcanizing agent and an antioxidant, wherein the vulcanizing agent is dicumyl peroxide; the antioxidant is pentaerythritol tetraester; and the mass ratio of the low-density linear polyethylene to the vulcanizing agent to the antioxidant is (100):(0.8-2.5):(0.1-0.4). The insulating material is prepared from the specific vulcanizing agent and antioxidant; and compared with a conventional insulating material in the prior art, the operating temperature of the insulating material is increased to 105°C from 90°C, thereby significantly improving the reliability, stability and transmission capacity of the submarine cable.
H01B 3/44 - Isolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques matières plastiquesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques résinesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques cires résines vinyliquesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques matières plastiquesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques résinesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques cires résines acryliques
A submarine cable for ultra-deep water. The submarine cable comprises: a plurality of cable cores, a plurality of pre-formed filler strips and an outer protective structure, wherein the plurality of cable cores are tightly twisted together; the plurality of pre-formed filler strips are arranged in gaps between the plurality of cable cores; the outer protective structure is wrapped around the peripheries of the plurality of cable cores and the plurality of pre-formed filler strips. Each pre-formed filler strip is provided with a cavity, which extends in the direction of length of the pre-formed filler strip, and through holes, which are arranged at intervals in the direction of length of the pre-formed filler strip and penetrate into the cavity in a radial direction; and the outer protective structure is provided with flow holes. When a submarine cable for ultra-deep water is laid and placed into a deep sea, seawater can enter gaps between a plurality of cable cores and cavities of pre-formed filler strips by means of flow holes, which allows the air inside the submarine cable to be completely discharged, so that the pressure inside and outside the submarine cable keeps balanced, thereby avoiding an internal structure of the submarine cable being crushed, and thus prolonging the service life of the submarine cable.
H01B 7/17 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures
H01B 7/20 - Tubes métalliques, p. ex. gaines de plomb
H01B 7/282 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles
The present application relates to the technical field of optical fiber splicing boxes. Provided is a large-water-depth optical fiber splicing box, comprising a cylinder and first sealing assemblies, wherein an optical fiber channel is provided at either end of the cylinder, and the optical fiber channel comprises a large-diameter section and a small-diameter section; and the first sealing assembly comprises a V-shaped sealing unit and a locking shaft, the V-shaped sealing unit being provided with a V-shaped sealing ring, the V-shaped sealing ring being separately attached to an optical unit and the large-diameter section, a V-shaped opening of the V-shaped sealing ring facing the outer side end of the large-diameter section, the locking shaft being arranged at the outer side end of the large-diameter section, and the locking shaft abutting against the V-shaped sealing unit. In the present application, by means of providing the cylinder, the pressure bearing performance and the internal space are increased; the optical fiber channel is also sealed by means of the V-shaped sealing unit, such that the V-shaped sealing ring can be attached to the optical unit and the inner wall of the large-diameter section more tightly under an external pressure; and the locking shaft can tightly press the V-shaped sealing unit, thus solving the problem in the prior art of the pressure bearing performance and the sealing performance of an optical fiber splicing box under a large-water-depth working condition being relatively poor.
A water-blocking conductor and a submarine cable. The water-blocking conductor comprises: multiple fan-shaped strand blocks, a first optical unit, multiple water-blocking conductor blocks, and a self-locking monofilament conductor layer. The multiple fan-shaped strand blocks are assembled to form a framework structure, a through hole is formed in the center of the framework structure, the first optical unit is arranged in the through hole, and a first water-blocking layer is provided between every two adjacent fan-shaped strand blocks; each water-blocking conductor block is arranged in a corresponding fan-shaped strand block; and the self-locking monofilament conductor layer is wrapped outside the framework structure. According to the water-blocking conductor, the multiple fan-shaped strand blocks are provided to divide the structure of the water-blocking conductor, improving the conductor skin effect, reducing the resistance of the water-blocking conductor, and reducing the line loss; the multiple water-blocking conductor blocks are provided to fill the vacant area of each fan-shaped strand block; and the self-locking monofilament conductor layer is provided to bind the fan-shaped divided water-blocking conductor blocks to the interior, so as to from a water-blocking conductor having a compact structure.
H01B 7/00 - Conducteurs ou câbles isolés caractérisés par la forme
H01B 7/282 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles
H01B 7/17 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures
H01B 7/288 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles par remplissage total ou partiel d'interstices du câble en utilisant un matériau hygroscopique ou un matériau gonflant en présence d'un liquide
10.
MULTI-CORE SUBMARINE CABLE AND MANUFACTURING DEVICE THEREFOR
Provided in the present application are a multi-core submarine cable and a manufacturing device therefor. The multi-core submarine cable comprises: power cables, the power cables each comprising electric units for electric conduction and an optical unit for communication; buffering and heat insulation structural units, wherein the buffering and heat insulation structural units each comprise a braided rope and a first protective sleeve, the first protective sleeve being extruded on the outer side of the braided rope; and auxiliary metal units, wherein the auxiliary metal units each comprise a metal pipe and a second protective sleeve, the second protective sleeve being extruded on the outer side of the metal pipe; the cross sections of the power cables and the buffering and heat insulation structural units are all circular; the diameters of the cross sections of the power cables are equal to the diameters of the cross sections of the buffering and heat insulation structural units; and the buffering and heat insulation structural units, the auxiliary metal units and at least two of the power cables are stranded to form cable cores of the multi-core submarine cable. The present application can improve the stability and reliability of the submarine cable and reduce the production cost of the submarine cable.
H01B 7/18 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'usure, la contrainte mécanique ou la pression
H01B 7/29 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par des températures extrêmes ou par les flammes
The present invention provides a submarine cable repairing method and a submarine cable. The submarine cable repairing method provided in the present invention comprises the following steps: determining a fault point of a cable, wherein the cable comprises a conductor and a wrapping layer, and the wrapping layer covers the conductor; stripping part of the wrapping layer, wherein the wrapping layer comprises a metal armor layer and a conductor shielding layer, stripping the metal armor layer comprises stripping the metal armor layer on both sides of the fault point, with a length that is 1.5 to 2.5 times the armor pitch length, a disconnection point of the stripped metal armor layer is located 0.3 to 0.7 times the armor pitch length away from the fault point, and the stripped metal armor layer is bent at the disconnection point in an opposite direction; and repairing the conductor and the wrapping layer, wherein repairing the conductor shielding layer comprises wrapping the exposed conductor with the same material as the conductor shielding layer in the cable. According to the submarine cable repairing method and the submarine cable provided in the present invention, the construction period can be shortened, and the construction cost is reduced.
H02G 1/16 - Méthodes ou appareils spécialement adaptés à l'installation, entretien, réparation, ou démontage des câbles ou lignes électriques pour réparer l'isolant ou l'armature des câbles
The present application relates to the technical field of optical cables, aims to solve the technical problem that some known optical cables fixed to deep sea clamps are prone to separation from the clamps under the action of radial water pressure, and provides a pressure-resistant structure, a pressure-resistant optical cable and a manufacturing method. The pressure-resistant structure can be bent into a ring and is arranged between an inner sheath and an outer sheath of an optical cable. The pressure-resistant structure comprises: a plurality of supporting units which sequentially abut against the inner sheath in the circumferential direction thereof, each supporting unit comprising a first abutting plate abutting against the inner sheath and two side plates, the two side plates being respectively connected to the two ends of the first abutting plate, and the distance between the two side edge plates in a direction away from the first abutting plate being smaller than the distance between the two ends of the first abutting plate; and a plurality of second abutting plates which are arranged at intervals in the circumferential direction of the inner sheath, the two ends of each second abutting plate being respectively connected to the two side plates of every two adjacent supporting units that are close to each other. The present application has the beneficial effect of improving the pressure resistance of pressure-resistant optical cables.
H01B 7/18 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'usure, la contrainte mécanique ou la pression
A modified aluminum alloy conductor and a production process therefor, and a modified aluminum alloy cable. The modified aluminum alloy conductor comprises, in percentage by mass: Si: 0.03-0.06 wt%; Fe: 0.50-0.80 wt%; Cu: 0.20-0.30 wt%; Mg: ≤0.01 wt%; Zn: ≤0.02 wt%; B: ≤0.04 wt%; and inevitable impurities: ≤0.08 wt% in total, with the balance being Al. The components of an aluminum alloy in the modified aluminum alloy conductor are adjusted, and the contents of copper, iron and other components are rationally controlled, such that the synergism between the components is improved to the maximum extent, and the aluminum alloy conductor is ensured to have good creep resistance, mechanical performance, flexibility and electrical performance; therefore, the connection reliability of a cable is improved, phenomena such as slippage at conductor joints are avoided, and safe and reliable operation of the cable is ensured.
H01B 1/02 - Conducteurs ou corps conducteurs caractérisés par les matériaux conducteurs utilisésEmploi de matériaux spécifiés comme conducteurs composés principalement de métaux ou d'alliages
H01B 13/00 - Appareils ou procédés spécialement adaptés à la fabrication de conducteurs ou câbles
14.
PREPARATION METHOD FOR HIGH-VOLTAGE CABLE AND HIGH-VOLTAGE CABLE
The present invention provides a preparation method for a high-voltage cable, and a high-voltage cable. The preparation method comprises: preparing modified polyvinyl chloride, wherein the modified polyvinyl chloride comprises polyvinyl chloride and a filler added to the polyvinyl chloride, wherein 100 parts by weight of polyvinyl chloride is used as a base material, and the filler comprises the following components in parts by weight: 1-2 parts of polyethylene, 2-3 parts of a filling agent, 2-3 parts of a lubricant, and 2-5 parts of a toughener; and extruding the modified polyvinyl chloride onto the outer surface of a smooth metal sheath layer to form a modified polyvinyl chloride sheath, wherein the modified polyvinyl chloride sheath is bonded to the smooth metal sheath layer, and the smooth metal sheath layer covers the outer surface of a cable core. The preparation method for a high-voltage cable provided by the present invention can greatly improve the flame retardant properties of high-voltage cables.
H01B 13/24 - GainageBlindageÉcransApplication de couches de protection d'un autre genre par extrusion
H01B 7/18 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'usure, la contrainte mécanique ou la pression
H01B 7/20 - Tubes métalliques, p. ex. gaines de plomb
15.
TESTING METHOD AND APPARATUS FOR SUBMARINE FIBER OPTIC CABLE, STORAGE MEDIUM, AND ELECTRONIC DEVICE
Disclosed are a testing method and apparatus for a submarine fiber optic cable, a storage medium, and an electronic device. The method comprises: applying N different water pressures to N sealed chambers where N segments of fiber optic cable of a submarine fiber optic cable are placed, wherein each segment of fiber optic cable among the N segments of fiber optic cable is located in one corresponding sealed chamber among the N sealed chambers, one corresponding water pressure among the N water pressures is applied to each sealed chamber among the N sealed chambers, water pressures applied to the sealed chambers are different, and the submarine fiber optic cable passes through a target sealing container; applying a target voltage to the submarine fiber optic cable by means of a target connector, wherein the target voltage is a voltage required to maintain operations of the submarine fiber optic cable at a target depth of water within a predetermined period of time; and determining that the submarine fiber optic cable is allowed to operate at the target depth of water when the submarine fiber optic cable has not been broken within the predetermined period of time. According to the technical solution, the problem of being unable to verify the reliability of a submarine fiber optic cable in a practical application environment in the prior art is solved.
G01N 3/02 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique Parties constitutives
G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
G01M 11/00 - Test des appareils optiquesTest des structures ou des ouvrages par des méthodes optiques, non prévu ailleurs
16.
DYNAMIC SUBMARINE CABLE AND FORMING METHOD FOR DYNAMIC SUBMARINE CABLE
The present application provides a dynamic submarine cable and a forming method for the dynamic submarine cable. The dynamic submarine cable comprises an optical unit and a plurality of cable cores; an inner sheath, an armor layer and an outer sheath are sequentially arranged from inside to outside around the optical unit and the plurality of cable cores; the plurality of cable cores form a triangular structure; every two adjacent cable cores are in abutting contact with each other; each cable core comprises an aluminum alloy conductor unit, a conductor shielding layer, an insulation layer and an insulation shielding layer which are sequentially arranged from inside to outside; each aluminum alloy conductor unit comprises a plurality of conductor layers and water blocking glue arranged between every two adjacent conductor layers; and each conductor layer comprises a plurality of conductor monofilaments. The technical solution of the present application can have good water blocking performance and fatigue performance, thereby prolonging the service life of a dynamic submarine cable.
H01B 7/285 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles par remplissage total ou partiel d'interstices du câble
H01B 7/17 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures
H01B 7/282 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles
H01B 7/18 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'usure, la contrainte mécanique ou la pression
17.
SUBMARINE CABLE PRODUCTION SYSTEM, SUBMARINE CABLE PRODUCTION METHOD, AND SUBMARINE CABLE
Provided in the present application are a submarine cable production system, a submarine cable production method, and a submarine cable. The submarine cable production system sequentially comprises: a crosslinking production apparatus, which is configured to form a conductor shielding layer, an insulating layer and an insulating shielding layer outside a conductor; a lead sleeve and sheath extrusion production apparatus, which is configured to sequentially form a lead sleeve and a sheath outside the insulating shielding layer; a ground reel; and an armor production apparatus, which is configured to form an armor layer outside the sheath, wherein the ground reel comprises a base, an introduction portion and a coiling portion, the introduction portion is configured to introduce, into the coiling portion, a first semi-finished submarine cable product processed by the lead sleeve and sheath extrusion production apparatus, the coiling portion is configured to store or guide out the first semi-finished submarine cable product, both the introduction portion and the coiling portion are rotatably arranged on the base, and the introduction portion can be rotated relative to the coiling portion. In the technical solution of the present application, the lead sleeve and sheath extrusion production apparatus and the armor production apparatus of the submarine cable production system can perform production synchronously, such that the problem of damage to a submarine cable can be solved.
A submarine cable. The submarine cable comprises a cable core body (10) and an armor structure (20), which covers the outer periphery of the cable core body (10), wherein the armor structure (20) comprises an armor layer (21), the armor layer (21) comprises a core body structure (211) and a base structure (212), and the base structure (212) covers an outer side of the core body structure (211). The base structure (212) of the submarine cable can protect the core body structure (211), thereby improving the stability of the submarine cable and meeting actual application requirements.
H01B 7/17 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures
H01B 7/18 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'usure, la contrainte mécanique ou la pression
19.
DYNAMIC CABLE PROTECTION SYSTEM AND WIND POWER SYSTEM
The present application provides a dynamic cable protection system and a wind power system. The dynamic cable protection system comprises: a dynamic cable, a plurality of first buoyancy devices, a plurality of second buoyancy devices, and a plurality of first connecting devices; the dynamic cable is located in a water area environment, the dynamic cable is used for transmitting a signal or electric energy between a water surface apparatus and an underwater apparatus, the plurality of first buoyancy devices are arranged at intervals on the dynamic cable, and the second buoyancy devices float on the water surface; the second buoyancy devices are connected to the dynamic cable by means of the first connecting devices, and the position where a first connecting device is connected to the dynamic cable is located between two adjacent first buoyancy devices; the second buoyancy devices are used for limiting the lowest position of trough sections of the dynamic cable, and a trough section is connected between two adjacent crest sections. The present application is applied to avoid a situation where the dynamic cable is bent and in contact with the seabed surface, and then the use and the service life of the dynamic cable are affected.
H02G 9/02 - Installations de lignes ou de câbles électriques dans ou sur la terre ou sur l'eau tendus directement dans ou sur le sol, lit de rivière ou fond de merLeur recouvrement, p. ex. tuiles
H02G 11/02 - Installations de câbles ou de lignes électriques entre deux pièces en mouvement relatif utilisant une bobineuse ou tambour
H02G 3/04 - Tubes ou conduits de protection, p. ex. échelles à câbles ou goulottes de câblage
F03B 13/20 - Utilisation du mouvement relatif entre un élément déplacé par les vagues et un autre élément les deux éléments étant mobiles par rapport au fond ou au bord de la mer
20.
SUBMARINE CABLE MANUFACTURING DEVICE AND MANUFACTURING METHOD
The present application provides a submarine cable manufacturing device and a submarine cable manufacturing method, which relate to the technical field of cables. The submarine cable manufacturing device comprises a monofilament drawing unit, a water-blocking conductor stranding unit, a three-layer co-extrusion unit, a semi-conductive wrapping unit, a metal shielding wrapping unit, an aluminum-plastic composite belt and sheath continuous production unit and an optical fiber compounding and cabling unit. The submarine cable manufacturing method comprises the following steps: forming a water-blocking conductor; forming a water-blocking conductor having a conductor shielding layer, an insulating layer and an insulating shielding layer; forming a water-blocking conductor having a first semi-conductive water-blocking tape wrapping layer, a metal shielding layer and a second semi-conductive water-blocking tape wrapping layer; forming a water-blocking conductor having an aluminum-plastic composite belt layer and a sheath layer; and forming the submarine cable. The aluminum-plastic composite belt and sheath continuous production unit can realize the continuous production of the aluminum-plastic composite belt and the sheath, thereby avoiding belt breakage in the production process of the aluminum-plastic composite belt layer.
Provided in the present application are a plastic extruder, and a method for manufacturing a polypropylene insulated cable. The plastic extruder provided in the present application comprises a plastic extruder body, which comprises a machine body and a heating device, wherein the heating device is arranged on an outer side of the machine body and is used for heating same, so that the temperature of the machine body is greater than or equal to 300°C; and the machine body is internally provided with a material cavity, and a screw is rotatably provided therein. The screw comprises a feeding section, a compression section and a homogenization section, which are sequentially connected, the compression section having a double-start thread, and the length thereof being 55-65% of the sum of the lengths of the feeding section, the compression section and the homogenization section. The plastic extruder and the method for manufacturing a polypropylene insulated cable provided in the present application aim to at least solve the problems of poor plasticization and blocking of a discharge port which tend to occur during the preparation of cable insulation layers using polypropylene material, and thus meet the preparation requirements of cable insulation layers.
H01B 13/14 - Isolation des conducteurs ou des câbles par boudinage
H01B 3/44 - Isolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques matières plastiquesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques résinesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques cires résines vinyliquesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques matières plastiquesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques résinesIsolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques cires résines acryliques
22.
SUBMARINE CABLE HETEROGENEOUS CONDUCTOR AND PROCESSING METHOD THEREFOR, AND SUBMARINE CABLE AND PREPARATION METHOD THEREFOR
The present invention provides a submarine cable heterogeneous conductor and a processing method therefor, and a submarine cable and a preparation method therefor. The submarine cable heterogeneous conductor comprises a first conductor, a second conductor, a third conductor, and a fourth conductor connected in sequence, the second conductor comprising a second conductor core, the third conductor comprising a third conductor core, the second conductor and the third conductor being conductors of different materials, the first conductor and the second conductor being conductors of the same material, the third conductor and the fourth conductor being conductors of the same material, the first conductor being a conductor formed by twisting and pressing first conductor metal wires, and the fourth conductor being a conductor obtained by twisting and pressing the second conductor metal wires. The second conductor and the third conductor of different materials are friction welded to form an alloy structure of the two materials at the joint, so that the electrochemical reaction between the second conductor and the third conductor can be suppressed, and the strength of the copper-aluminum welding joint can also be effectively controlled, thereby improving the welding quality of the submarine cable heterogeneous conductor as a whole.
H01R 4/62 - Connexions entre des conducteurs constitués de matériaux différentsConnexions entre ou avec des conducteurs en aluminium avec ou sans âme en acier
The present application relates to the technical field of optical cables, and in particular to a dynamic submarine optical cable, comprising: a core (1), at least three armor layers (2, 4, 6, 8), and an outer sheath (10) provided in sequence from the inside to the outside, wherein each armor layer (2, 4, 6, 8) comprises at least one armor structure, a partition layer (3, 5, 7) is arranged between two adjacent armor layers (2, 4, 6, 8), and the stranding directions of two adjacent armor layers (2, 4, 6, 8) are opposite. A dynamic submarine optical cable having a long service life and good stability in seawater is provided.
A submarine cable water pressure test cabin, which relates to the technical field of submarine cable testing. The submarine cable water pressure test cabin comprises: a housing (1), wherein the housing (1) is provided with a submarine cable inlet (2) and a submarine cable outlet (3), and after the submarine cable (7) passes through the housing (1), two ends of the submarine cable (7) respectively extend out through the submarine cable inlet (2) and the submarine cable outlet (3); at least three pressure bins are arranged in the housing (1) in sequence, and each pressure bin is provided with a pressure measuring device (4); and in the housing (1), a passage for the submarine cable (7) to pass through is arranged between two adjacent pressure bins, and after the submarine cable (7) passes through the passage, the two adjacent pressure bins are sealed from each other. By means of the submarine cable water pressure test cabin, after the submarine cable passes through the housing, the three pressure bins in the housing are relatively sealed, wherein the pressure bin located in the middle may be used to perform a pressure test on the submarine cable, and the pressure bins on two sides may be used to buffer a differential pressure between the pressure bin for testing the submarine cable and the outside, thereby reducing the problem of the peeling of a cable head exposed from the submarine cable.
The present application relates to the technical field of submarine cables, and provides a bundled submarine cable junction box. The bundled submarine cable junction box comprises a first anchor, a second anchor, a protective cover, at least three electrical connectors, at least one optical connector and a sealed cabin. The electrical connectors and the optical connectors are used to achieve the connection of two bundled submarine cables. The electrical connectors and the optical connectors each comprise a male part and a female part. The male parts of the electrical connectors and the optical connectors are fixed on a male housing of the sealed cabin, the female parts of the electrical connectors and the optical connectors are fixed on a female housing of the sealed cabin, and the sealed cabin is docked as a whole, which may achieve the one-to-one corresponding insertion of the connectors. Thus, the problem of the messy connection of cable cores of two bundled submarine cables in a bundled submarine cable junction box may be avoided, so that the connection of the cable cores inside of the bundled submarine cable junction box may be effectively completed, ensuring construction and operation safety.
H01R 11/09 - Éléments de connexion individuels assurant plusieurs emplacements de connexion espacés pour des organes conducteurs qui sont ou qui peuvent être interconnectés de cette façon, p. ex. pièces d'extrémité pour fils ou câbles supportées par le fil ou par le câble et possédant des moyens pour faciliter la connexion électrique avec quelqu'autre fil, borne, ou organe conducteur, répartiteurs caractérisés par le type des emplacements de connexion sur l'élément individuel ou par le type des connexions entre les emplacements de connexion et les organes conducteurs les emplacements de connexion étant identiques
The present invention relates to the technical field of cables, and provides a submarine cable. The submarine cable comprises multiple core wires which are twisted together; the core wires each comprises a first metal wire and a conductive layer wrapping the first metal wire; and the conductivity of the conductive layer is greater than the conductivity of the first metal wire. By means of the described setting, when the submarine cable is electrified by alternating current, the current concentrated on the surface part of the first metal wire is partially transmitted to the conductive layer to improve the current carrying capacity of the surface part of the first metal wire, such that the alternating current resistance of the first metal wire is reduced, thereby reducing the electric energy loss.
Provided is a deepwater submarine cable, comprising a cable core (1), a buffer support member (2), an optical fiber unit (3), and a protection unit (4). There are at least three cable cores (1). The buffer support member (2) is provided between the plurality of cable cores (1), and the hardness of the buffer support member (2) is less than that of the outer peripheral wall of the cable core (1). A support portion (21) and a notch (22) are distributed at the edge of the buffer support member (2) at intervals. The support portion (21) is provided with an accommodating space for accommodating the optical fiber unit (3), and at least part of the cable core (1) is located in the notch (22). The protection unit (4) covers the cable core (1), the buffer support member (2) and the optical fiber unit (3), and the inner peripheral wall of the protection unit (4) is attached to the outer peripheral wall of each cable core (1). The deepwater submarine cable has higher electrical performance and is not easily broken down.
A shallow water floating wind power system and a dynamic cable assembly thereof. The dynamic cable assembly for the shallow water floating wind power system comprises a dynamic cable (100), a plurality of buoyancy units, and a plurality of connecting units (300). Each connecting unit (300) comprises a mooring chain (310), an elastic cable (320) and an anchor (340). The dynamic cable (100) is connected to a seabed (800) by means of the mooring chains (310) and the elastic cables (320); the connecting units (300) and the buoyancy units together define a line shape of the dynamic cable (100), wherein the line shape of the dynamic cable (100) comprises a first valley section (110), a plurality of peak sections (120), and second a valley section (130) between two adjacent peak sections (120); each buoyancy unit comprises a plurality of buoyancy blocks (200) disposed at the top end of the peak section (120), and each connecting unit (300) is disposed on the side of the peak section (120) away from a floating fan (700). The shallow water floating wind power system comprises the floating fan (700) and the dynamic cable assembly, wherein the floating fan (700) is connected to the dynamic cable assembly by means of a curvature limiting cylinder (500). According to the dynamic cable assembly for the shallow water floating wind power system, when the sea condition is severe, the dynamic cable (100) does not drift in a large range, and when the impact borne by the dynamic cable (100) is too large, the elastic cable (320) can reduce the impact load on the dynamic cable (100), thereby preventing the connections between the dynamic cable (100) and the mooring chains (310) from being damaged due to excessive impact.
F03D 13/25 - Dispositions pour monter ou supporter des mécanismes moteurs à ventPylônes ou tours pour des mécanismes moteurs à vent spécialement adaptés à l’installation offshore
F03D 17/00 - Surveillance ou test de mécanismes moteurs à vent, p. ex. diagnostics
E21B 17/01 - Colonnes montantes pour têtes de puits immergées
F16L 57/02 - Protection des tuyaux ou d'objets de forme similaire contre les dommages ou les usures internes ou externes contre la fissuration ou le flambement
A flexible direct-current submarine cable, comprising a water-blocking conductor (1) and an optical fiber assembly (2). The water-blocking conductor (1) comprises a conductor core (11) covering the outer side of the optical fiber assembly (2); the conductor core (11) comprises at least two conductor layers (111); the at least two conductor layers comprise a first conductor layer (111a) and a second conductor layer (111b); the first conductor layer (111a) and the second conductor layer (111b) are alternately provided along the radial direction of the optical fiber assembly; the first conductor layer (111a) is formed by twisting a plurality of first metal wires (30) arranged in the circumferential direction of the optical fiber assembly (2); the second conductor layer (111b) is formed by twisting a plurality of second metal wires (40) arranged in the circumferential direction of the optical fiber assembly (2).
H01B 7/282 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles
The present invention relates to the technical field of submarine cables, and provides a dynamic and static submarine cable and a manufacturing method therefor, being used for solving the technical problem that the production period of the dynamic and static submarine cable is relatively long. The dynamic and static submarine cable comprises: a continuous cable core, the cable core comprising a dynamic section, a static section, and a transition section connecting the dynamic section and the static section; a first armor layer, sleeved on the outer sides of the dynamic section, the static section, and the transition section; a transition device, sleeved on the outer side of the first armor layer corresponding to the transition section; and a second armor layer, sleeved outside the first armor layer corresponding to the dynamic section, wherein a first end of the second armor layer covers part of the transition device, and the first end of the second armor layer is welded to the peripheral surface of the transition device. The dynamic and static submarine cable provided by the present invention is used for electric conduction and communication.
H01B 7/22 - Fils rubans ou métalliques, p. ex. d'acier
H01B 7/24 - Dispositifs de protection localisée contre la contrainte mécanique ou la pression
H01B 7/18 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'usure, la contrainte mécanique ou la pression
Provided are a submarine cable and a manufacturing method therefor, relating to the technical field of cables, and being used for solving the technical problems of the poor bendability, flexibility and electrical performance of submarine cables. The submarine cable comprises a submarine cable segment and a landing cable segment, wherein the submarine cable segment comprises a first conductor; the first conductor comprises n layers of first monofilament layers; the landing cable segment comprises a second conductor; the second conductor comprises m layers of second monofilament layers; the m layers of second monofilament layers are divided into n layers of second welding monofilament layers and h layers of second winding monofilament layers; the n layers of first monofilament layers are welded with the n layers of second welding monofilament layers in one-to-one correspondence; and the h layers of second winding monofilament layers are sequentially wound out of the outermost layer of the n layers of first monofilament layers sequentially from inside to outside in the radial direction. The submarine cable and the manufacturing method therefor provided by the present invention are used for improving the bendability, flexibility and electrical performance of submarine cables.
09 - Appareils et instruments scientifiques et électriques
Produits et services
(1) Data cables; threaded electrical cable connectors; underwater power cables; data transmission cables; junction sleeves for electric cables; fibre optic cables; electric cables and wires; optical cables; coaxial cables.
A high-voltage dynamic submarine cable, comprising an electric unit, an optical unit (8), a filling strip, an inner sheath (9), an armor layer (10) and an outer sheath (11). The electric unit, the optical unit (8) and the filling strip are intertwisted to form a submarine cable core, and the submarine cable core is wrapped with the inner sheath (9) and the outer sheath (11); the armor layer (10) is arranged between the inner sheath (9) and the outer sheath (11); the electric unit comprises a conductor (1); a co-extrusion structure layer (2), a water-blocking buffer layer (3), a corrugated copper sleeve (4) and a split-phase sheath (5) are sequentially wrapped outside the conductor (1); a plurality of annular or threaded relief structures are rolled on the outer side face of the corrugated copper sleeve (4) in the axial direction; and the water-blocking buffer layer (3) and the split-phase sheath (5) are in contact with and fill the relief structures on the corrugated copper sleeve (4). The submarine cable has an excellent radial water blocking effect, guarantees normal use of an ultra-clean high-voltage insulating material in deep and far-sea, high-salinity and high-water-pressure environments, provides guarantee for reliable operation of a floating booster station of future floating wind fields, and guarantees the use function of the high-voltage dynamic submarine cable.
H01B 7/282 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles
35.
DYNAMIC AND STATIC SUBMARINE CABLE WITH CONTINUOUS WIRE CORE AND PRODUCTION METHOD THEREFOR
A dynamic and static submarine cable with a continuous wire core (10), the submarine cable having the continuous wire core (10), a static section (11), a dynamic section (12), and a transition section (13) positioned between the static section (11) and the dynamic section (12), wherein an inner jacket (101) is formed on the exterior of the wire core (10) through extrusion, and a part of the inner jacket (101) which is positioned at the transition section (13) is selected and marked as a transition point (131); armored steel wires are twisted on the inner jacket (101) to form at least one inner armored layer, and the position on the inner armored layer corresponding to the transition point (131) is marked; and the armored steel wires are twisted from the dynamic section (12) to the transition section (13) to form at least one outer armored layer, the outer armored layer extends to the transition section (13), the inner armored layer and the outer armored layer are cut off at the transition point (131), and the parts of the inner armored layer and the outer armored layer at the transition section (13) are combined to install a sealing assembly. Further provided is a production method for the dynamic and static submarine cable with the continuous wire core (10), wherein the wire core (10) is continuously produced, the armored layer and a jacket layer are formed outside the wire core (10), the armored steel wires of the armored layer are cut off at the transition section (13), and the sealing assembly (20) is installed in a matching manner.
A power supply cable for low-voltage frequency conversion, comprising a cable core, an inner lining layer, a shielding layer, a fireproof isolation layer, a wrapping layer and a sheath layer which are sequentially arranged, wherein the cable core comprises three first cores and three second cores, the three first cores being distributed along the circumference in the cable core, the three second cores being distributed along the circumference outside the three first cores, and the diameter of the first cores being larger than that of the second cores; and the fireproof isolation layer is arranged between the shielding layer and the sheath layer, and the wrapping layer is arranged outside the fireproof isolation layer, the fireproof isolation layer comprising a polygonal polyethylene (PE) isolation sleeve wrapped outside the shielding layer and a fireproof mud layer. The present invention can withstand a pulse voltage during high-speed frequent frequency conversion and has the effect of protecting a frequency conversion electric appliance; and the fireproof mud layer is additionally arranged on the basis of a fireproof cable, such that the bending radius of the cable cannot be increased when the cable encounters a fire, the cable is more convenient and quicker to run and lay, the cable runs for longer when a fire occurs, the destructive power of the fire is smaller, and the cable runs more stably.
H01B 7/17 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures
H01B 7/29 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par des températures extrêmes ou par les flammes
H01B 7/295 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par des températures extrêmes ou par les flammes en utilisant un matériau résistant aux flammes
H01B 7/04 - Câbles, conducteurs ou cordons flexibles, p. ex. câbles traînants
37.
MULTI-CORE DIRECT-CURRENT SUBMARINE CABLE AND METHOD FOR PRODUCING SAME
Disclosed are a multi-core direct-current submarine cable and a method for producing same. The multi-core direct-current submarine cable comprises: two identical polar electric units (11, 12), an additional electric unit assembly (13), several filling strips (15), a belt (161), a cushion layer (162), an armor layer (163) and an outer protective layer (164). The cross-sectional outer diameter of the additional electric unit assembly is the same as the cross-sectional outer diameter of each polar electric unit; the two polar electric units and the additional electric unit assembly are twisted together, and are sequentially provided with the belt, the cushion layer, the armor layer and the outer protective layer wrapped around same; and the several filling strips are disposed in gaps between the two polar electric units and the belt and between the additional electric unit assembly and the belt. The multi-core direct-current submarine cable is conducive to saving laying costs and laying time, and the problem of roundness of electric units with different outer diameters can be effectively solved. In the method for producing the multi-core direct-current submarine cable, the two polar electric units and the additional electric unit assembly are twisted by means of gravity in a vertical direction, and twisting of the multi-core direct-current submarine cable can be stably and efficiently achieved.
H01B 7/18 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'usure, la contrainte mécanique ou la pression
A submarine cable and a preparation method therefor. The submarine cable comprises a plurality of structural units and a protection unit, wherein the protection unit is arranged on the periphery of the structural units; the protection unit comprises an outer protection layer and armor layers, which are arranged on the periphery; the armor layers are located between the outer protection layer and the structural units; two armor layers are provided; and an included angle between a monofilament of the inner armor layer and the axis of the submarine cable is greater than an included angle between a monofilament of the outer armor layer and the axis of the submarine cable, or the directions of included angles between monofilaments of the two armor layers and the axis of the submarine cable are opposite one another. According to the submarine cable, by means of limitations on angles between monofilaments of two armor layers and a central horizontal line, gaps between the monofilaments of the two armor layers have different angles or directions in the axial direction, thereby providing stronger protection for the submarine cable.
A bundled submarine cable and a manufacturing method therefor. The bundled submarine cable (100) comprises a protective layer (10) and at least three groups of three-core return circuits (30) disposed in the protective layer, each group of three-core return circuits uses different twisting intercepts, and the three-core return circuits are symmetrically disposed on the inner side of the protective layer. Multiple strands of three-core return circuits of the bundled submarine cable are integrated into a submarine cable, satisfying the requirements of multiple electric submersible pumps for an underwater production system or multiple generator sets for offshore new energy development for power transmission at different frequencies and different powers; and the whole cable is formed by using different twisting intercepts among the three-core return circuits, so that crosstalk among wire cores is greatly reduced, and the operation safety of a terminal device is improved.
A non-metallic armored submarine cable. The submarine cable comprises a central cable consisting of one or more electric units, armor layers, and an outer coating layer; the armor layers are twisted on the outside of the central cable; the outer coating layer is sleeved on the outside of the armor layers; each armor layer is formed by stranding a plurality of circular or flat non-metallic armored elements and/or a plurality of armored metal wires; when the non-metallic armored element is circular, the non-metallic armored element consists of a non-metallic rod and an outer sheath extruded and coated on the outside of the non-metallic rod, or is composed of a central rod body composed of a plurality of stacked non-metallic rods, and an outer sheath extruded and coated on the outside of the central rod body; and when the non-metallic armored element is flat, the non-metallic armored element is composed of a plurality of non-metallic rods and an outer sheath extruded and coated on the outside. According to the present invention, the problems of large submarine cable weight and large force of vertical laying and mounting under the condition of large water depth are solved, a lighter submarine cable weight is achieved while the mechanical performance of deep submarine cables is ensured, and the safety of laying construction and operation of submarine cables is facilitated to be ensured.
The present invention provides a DC submarine cable, which comprises a conductor unit, an insulation unit and a protection unit which are sequentially arranged from inside to outside, wherein the protection unit comprises a water blocking tape, a metal protective layer and an outer sheath which are sequentially arranged from inside to outside, wherein a return unit is further arranged in the DC submarine cable, and the return unit has the same current carrying capacity as that of the conductor unit. When a certain DC submarine cable in the same DC transmission circuit fails, a return conductor layer in another intact DC submarine cable can be used as a return path to form a loop with its own conductor to continue working, ensuring that a complete dynamic DC submarine cable has 50% of the power transmission capacity of the original transmission circuit.
H01B 7/17 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures
H01B 7/282 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles
A power cable comprises at least three cable cores, and a filler layer, a waterproof layer, a composite layer, and an outer sheath sequentially wrapped around the outside of the at least three cable cores. Each of the cable cores comprises a waterproof conductor, a conductor shield layer, an insulation layer, an insulation shield layer, a first waterproof tape, a shield layer, a second waterproof tape, a first composite tape, and a first protection sheath that are sequentially disposed and wrapped from an inner side to an outer side. The first protection sheath is tangential to the filler layer, outer sides of the at least three cable cores are arranged in a tangential manner to form an accommodation space, and a waterproof filler strand is filled in the accommodation space. The power cable provided by the present invention is waterproofed in each layer from the outer protection sheath to the inner waterproof conductor, thereby providing improved waterproof performance, preventing water ingress to the power cable in a longitudinal or radial direction in a comprehensive and effective manner, and ensuring operational safety of the power cable.
H01B 9/02 - Câbles de transport d'énergie avec écrans ou couches conductrices, p. ex. en vue d'éviter des gradients de potentiel élevés
H01B 7/285 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles par remplissage total ou partiel d'interstices du câble
A submarine photoelectric composite cable (100), comprising: an optical fiber assembly (10), a conductor layer (20), a shielding layer (30), a protective layer (50), an armor layer (60) and an outer sheath layer (70) which are sequentially cladded from inside to outside; the conductor layer (20) comprises conductor assemblies (21), the conductor assemblies (21) are twisted outside the optical fiber assembly (10); the submarine photoelectric composite cable (100) further comprises ground wire assemblies (40), the ground wire assemblies (40) are filled between the conductor layer (20) and the shielding layer (30) and/or in gaps between the conductor layer (20) and the optical fiber assembly (10), each of the conductor assemblies (21) comprises a conductor (211), the cross section of each of the conductors (211) in the radial direction of each of the conductor assemblies (21) is taken as a first cross section, each of the ground wire assemblies (40) comprises a second conductor (41), the cross section of each of the second conductors (41) in the radial direction of each of the ground wire assemblies (40) is taken as a second cross section, the area of any one of the first cross sections is smaller than the area of the second cross section; and the optical fiber assembly (10) comprises an optical fiber unit (11) and a heat insulation layer (12), the heat insulation layer (12) being cladded outside the optical fiber unit (11). The submarine photoelectric composite cable (100) can effectively lead out a short circuit current and prevent the optical fiber from being in a high-temperature environment.
A lightweight 66 kV XLPE-insulated optical fiber composite AC submarine cable comprises a water-resistant conductor (1), a conductor screen (2), an insulation layer (3), an insulation screen (4), a semiconducting water-resistant layer (5), a wire screen (6), a metal tape layer (7), a semiconducting water-resistant buffer layer (8), a metal tape water-resistant layer (9), a split-phase protection layer (10), a filler layer (11), an optical unit (12), a tape covering (13), an inner jacket (14), an armoring (15), and an outer sheath (16). The invention solves problems in which transmission of power generated by a large-capacity wind turbine is inconvenient and heavy power cables are subject to limitations when transported and installed by ship.
A metal sheathed cable includes an optical unit and a control unit helically twisted together, a grounding wire unit distributed in the gaps between the optical unit and the control unit to form an inner layer cable core, a filler watertightly filled into gaps among the optical unit, the control unit and the grounding wire unit, and a taped covering arranged outside the inner layer cable core; a power unit and a filling core helically twisted around the inner layer cable core, the grounding wire unit distributed in the gap between the power unit and the filling core, the filler watertightly filled into gaps among the power unit, the grounding wire unit and the filling core, and the taped covering arranged outside the outer layer cable core; an inner protective layer wrapped outside the outer layer core, and a sheathing layer twisted outside the inner protective layer.
H01B 7/04 - Câbles, conducteurs ou cordons flexibles, p. ex. câbles traînants
H01B 7/282 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques empêchant la pénétration de fluides dans les conducteurs ou les câbles
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p. ex. câbles de transmission optique
A detachable deep submarine cable rolling winch comprises a winch body (1). A hub of the winch body (1) is covered with a detachable iron sheet (2) with recesses. The inner sides of conic flanges of the winch body (1) are covered with detachable stepped iron plates (3). The conic flanges are each of a housing structure and fixed to a mainshaft (4) by means of trapezoidal radial plates (5). Steps on each layer of the iron plates (3) match the grooves in the iron sheet (2) and provided with grooves. Compared with a traditional cable storage winch, the rolling winch can prevent, by using small traction tension, a cable from laterally sliding in the axial direction of the hub, the cable layer squashing probability is greatly reduced in the submarine cable unrolling process when the cable is in transition from a bottom layer to an upper layer, the lateral anti-deformation capability of the flanges is improved by means of the support of the radial plates, the iron sheets on the hub and the flanges can be replaced according to different sea condition requirements and design of submarine cable technical parameters, the reuse rate of the winch is increased, and the detachable deep submarine cable rolling winch can meet the requirements for long cable arrangement and hoisting.
An umbilical cable anchoring structure, comprising a base (1) fixed to a working platform. The base comprises a bearing platform and an inverted conical guide channel for an umbilical cable (6), the guide channel being welded to the bottom of the base. Pore passages (2) are arranged on the bearing platform in a surrounding mode, and the number of the pore passages (2) is identical to that of armored steel wires. The armored steel wires (3) stripped from the outer layer of the umbilical cable penetrate through the pore passages. Each pore passage has an embracing and fixing ring (4) and a puller bolt (5) connected thereto in a matching mode. The inner diameter of each embracing and fixing ring is of a horn-shaped structure from top to bottom, and a petal-shaped slot is formed in one end of each embracing and fixing ring. Compared with a slab or conical dual-bearing-platform anchoring structure used for a traditional undersea cable, the umbilical cable anchoring structure does not have fastening and bearing cover plates, and materials are saved; all the armored steel wires of the umbilical cable can play a role in the using process, the bearing capacity of the anchoring structure is increased, and reliability is improved; the armored steel wires are easy to operate and convenient to construct in the anchoring process.
H02G 9/02 - Installations de lignes ou de câbles électriques dans ou sur la terre ou sur l'eau tendus directement dans ou sur le sol, lit de rivière ou fond de merLeur recouvrement, p. ex. tuiles
49.
EQUIPOTENTIAL OPTICAL FIBRE UNIT FOR HIGH-VOLTAGE PHOTOELECTRIC COMPOSITE CABLE AND PREPARATION METHOD THEREFOR
An equipotential optical fibre unit for a high-voltage photoelectric composite cable. The equipotential optical fibre unit for the high-voltage photoelectric composite cable is sequentially composed of an optical fibre (1), a water blocking factice (2) specially used for filling the optical fibre unit, a metal protective tube (3), a semiconductive plastic enhancement layer (4), a metal wire armoured layer (5) and a semiconductive plastic outer protection layer (6) from inside to outside. Various protection layers are electrically connected by means of the protection of metal and non-metal materials, and the various protective layers are equipotential. Under the action of an electric field of a power cable, a potential difference will not be generated between metal and non-metal material protection layers; the entirety of an optical fibre unit and other structures of a photoelectric composite cable also form an equipotential body; therefore, a potential difference does not exist between the optical fibre unit and other structures of the cable, so that the optical fibre unit itself will not be broken through due to the fact that an induced voltage is too high, in addition, the space between the optical fibre unit and a high voltage cable core will not be broken through, thereby ensuring the security of the optical fibre unit and the cable body, and improving the service life of the cable.
A deep-sea optical cable extrusion molding branch joint box and a mounting process therefor comprise an internally armored steel wire fixing device, bearing nuts (4), a support tray (10), an inner barrel body (8), a prefabricated barrel (9) and an injection molding sealing body (1), wherein sealing pads (5) and the bearing nuts (4) are arranged on the two ends of the support tray (10); the internally armored steel wire fixing device comprises an inner cone pressing sleeve (2) and an inner cone shaft (3); the internally armored steel wire fixing device is fastened in the bearing nuts (4); the inner cone pressing sleeve (2) is fixedly connected with the support tray (10) through the bearing nuts (4); the inner barrel body (8) sleeves on the outside of the support tray (10), and is located by steel wire retainer rings (6) used for holes; the prefabricated barrel (9) also sleeves on the inner barrel body (8), and the portion from the deep-sea optical cable to the prefabricated barrel (9) is coated with an injection molding film; the support tray (10) is also provided with a tray and a cover plate (12); fiber storage units are arranged on the upper lower end and the lower end of the tray. The deep-sea optical cable extrusion molding branch joint box adds the functions, lowers the cost and simplifies the structures. The deep-sea optical cable extrusion molding branch joint box is easy to manufacture, low in fault rate, and has the advantages of being safe, reliable, energy-saving, environment-friendly, convenient to operate.
An environment-friendly anti-marine-borer double-steel-wire armored optical fiber composite submarine cable is a composite high-voltage alternating-current submarine cable with functions of a submarine cable and a submarine optical cable, and used for achieving both power transmission and optical signal transmission. The submarine cable comprises a water-blocking conductor layer (1), a conductor shielding layer (2), an insulation layer (3), an insulation shielding layer (4), a semi-conducting water-blocking layer (5), a metal sheath layer (6), a semi-conducting water-blocking belt (7), a phase-split sheath layer (8), an optical unit (9), a filler layer (10), a tape layer (11), an extrusion inner sheath (12), an anti-marine-borer copper belt (13), an inner-layer steel wire (14), a fiber cushion layer (15), an outer-layer steel wire (16) and an extrusion outer sheath (17). The phase-split sheath layer (8), the inner sheath (12) and the outer sheath (17) all adopt extrusion sheathes; the anti-marine-borer copper belt (13) is made of alloy materials such as brass that has good mechanical properties and good corrosion resistant performance; and the armored structure is a double-layer steel wire armored structure (14, 16), and the fiber cushion layer (15) is added between the two armored layers. The submarine cable can be used in a humid environment, has no heavy metals such as lead, and is environment-friendly.
H01B 7/28 - Protection contre les dommages provoqués par des facteurs extérieurs, p. ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques
52.
METAL SHEATHED CABLE DESIGNED BASED ON TORQUE BALANCE AND DESIGN METHOD THEREFOR
Disclosed are a metal sheathed cable designed based on torque balance and a design method therefor. Optical units (1) and control units (2) are helically twisted together, grounding wire units (4) are distributed in gaps between the optical units (1) and the control units (2) to form an inner layer cable core, fillers (7) are watertightly filled into the gaps among the optical units (1), the control units (2) and the grounding wire units (4) of the inner layer cable core, and a taped covering (6) is arranged outside the inner layer cable core; power units (3) and filling cores (5) are helically twisted around the inner layer cable core, the grounding wire units (4) are distributed in the gaps between the power units (3) and the filling cores (5) to form an outer layer cable core, the fillers (7) are watertightly filled into the gaps among the power units (3), the grounding wire units (4) and the filling cores(5) of the outer layer cable core, and a taped covering (6) is arranged outside the outer layer cable core; an inner protective layer (8) is wrapped outside the outer layer cable core, and sheathing layers (9) are twisted outside the inner protective layer (8). By means of the torque balance design, the sheathing layers (9) effectively solve the problem of a torque deviation existing between layers inside a steel wire sheathing layer of a metal sheathed cable at the structural design level, thereby guaranteeing that the metal sheathed cable does not rotate when bearing a working load.
