CN203150195U - Comprehensive oil-filled cable for large-sized electrical equipment - Google Patents

Abstract

The utility model relates to the field of household communication power equipment, particularly to an oil-filled cable. The comprehensive oil-filled cable for large-sized electrical equipment comprises a conductor, optical fiber communication cable cores and data cable cores, the conductor is wrapped by a conductive shielding layer, the conductive shielding layer is wrapped by oil-filled insulating paper, and the oil-filled insulating paper is wrapped by aluminum foils for shielding to form a power core wire; and each data cable core is wrapped by a data insulating, twisted with an optical fiber communication cable core, and together with a ground lead is wrapped by aluminum foils as a data core wire, a plurality of data core wires form a ring array with a power core wire arranged in the central position and are then twisted into a cable, and is wrapped by an inner sheath, a shielding armor layer and an outer sheath in sequence from inside to outside, fillers are arranged in gaps among the power core wire and the data core wires, and the outer sheath is made of low smoke zero halogen flame-retardant vulcanized chemigum. According to the comprehensive oil-filled cable for large-sized electrical equipment, the power cable core, the data cable cores, and the optical fiber communication cable cores are twisted into a cable and fillers are used to make the cable round, and has excellent electrical performance.

Description

Comprehensive oil-filled cables for large electrical equipment

technical field

The utility model relates to the field of household communication power equipment, in particular to an oil-filled cable.

Background technique

As people's demand for information in production and life becomes larger and wider, communication technology advances by leaps and bounds, presenting a prosperous scene of information technology in the ascendant. Under the demand of widely adopting information technology in various fields, communication products that are born on demand have sprung up one after another. However, in major equipment such as aerospace, ships, offshore platforms, oil exploration, power plants and other major equipment with large temperature difference between high and low temperatures, high flame retardancy requirements, and strict communication requirements, due to the small demand for communication products, strict quality requirements, and performance factors The requirements are constantly changing due to different occasions. So far, no professional industry standards and product series have been formed in terms of high-end communication products, especially communication cable products.

Existing offshore engineering, large-scale power equipment, oil extraction equipment or monitoring systems generally use mutually independent cable systems. This type of cable usually has problems such as high cable laying cost and high difficulty factor. In order to monitor the working status of the equipment, laying monitoring cables independently not only takes up expensive equipment space, but also easily damages the previous cables when laying cables repeatedly, increasing the laying time. Difficulty, there are problems such as difficult cable installation, excessive space occupation, insufficient product reliability, and low system integration.

Contents of the invention

The technical problem to be solved by the utility model is to provide a comprehensive oil-filled cable for large-scale electrical equipment. The power cable core, data cable core and optical fiber communication cable core are twisted together to form a cable and rounded with fillers, and ground wires are added. After shielding, it can achieve 100% shielding effect, with excellent electrical performance, high signal transmission frequency, good shielding effect, and strong anti-electromagnetic interference ability.

The utility model is achieved as follows: a comprehensive oil-filled cable for large electrical equipment, including a conductor, an optical fiber communication cable core and a data cable core, the conductor is a hollow structure, the conductor is provided with an oil passage, and the conductor is wrapped around the conductor to conduct electricity. Shielding layer, the conductive shielding layer is wrapped with oil-filled insulating paper, and the oil-filled insulating paper is wrapped with aluminum foil to shield the power core wire; the data cable core is wrapped with a data insulating layer and then twisted with the optical fiber communication cable core and grounded The wires are wrapped with aluminum foil together as the data core wire, and several data core wires are arranged in a circular array and a power core wire is set in the center and twisted into a cable. After twisting into a cable, the inner sheath and shielding armor layer are wrapped in sequence from the inside to the outside. And the outer sheath, the gap between the power core wire and the data core wire is provided with a filler, and the outer sheath is low-smoke, halogen-free, flame-retardant vulcanized nitrile rubber.

An oil hole communicating with the oil-filled insulating paper is provided at intervals on the conductor.

The optical fiber communication cable core includes an optical fiber, an optical fiber paste filling, a loose tube, an aramid yarn and a sheath tube. After the optical fiber is twisted, it is covered with a loose tube, and the gap in the loose tube is filled with an optical fiber paste. Lun thread, and then extrude the sheath tube.

The data cable core is a stranded silver-plated copper wire conductor.

The data insulating layer is PET non-woven fabric.

The filler is flame retardant polypropylene.

The inner sheath is flame retardant rubber.

The shielding armor layer is a braided layer of galvanized steel wire.

The comprehensive oil-filled cable for large-scale electrical equipment of the utility model twists the power cable core, the data cable core, and the optical fiber communication cable core together to form a cable, rounds it with fillers, and adds a grounding wire for shielding to achieve 100% shielding effect; and uses Low-smoke, halogen-free, flame-retardant vulcanized nitrile rubber with good fire resistance is used as the outer sheath, which has excellent electrical properties, high signal transmission frequency, good shielding effect, and strong anti-electromagnetic interference ability.

Description of drawings

Fig. 1 is the schematic cross-sectional view of the comprehensive oil-filled cable for large electrical equipment of the present invention;

Fig. 2 is a schematic diagram of the structure of the optical fiber communication cable core in the present invention.

In the figure: 1 conductor, 2 optical fiber communication cable core, 3 data cable core, 4 conductive shielding layer, 5 oil-filled insulating paper, 6 inner sheath, 7 shielding armor layer, 8 outer sheath, 9 aluminum foil, 10 oil channel , 11 data insulation layer, 12 ground wire, 13 filler, 21 optical fiber, 22 optical fiber paste, 23 loose tube, 24 aramid yarn, 25 sheath tube.

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content of the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Example 1

As shown in Figure 1, a comprehensive oil-filled cable for large electrical equipment, including a conductor 1, an optical fiber communication cable core 2 and a data cable core 3, the conductor 1 is a hollow structure, the conductor 1 is provided with an oil passage 10, the conductor 1 1. The conductive shielding layer 4 is wrapped around the conductive shielding layer 4. The conductive shielding layer 4 is wrapped around the oil-filled insulating paper 5. The oil-filled insulating paper 5 is wrapped around the aluminum foil 9 to form a power core wire; the data cable core 3 is wrapped around the data insulation. Layer 11 is then twisted with optical fiber communication cable core 2 and covered with aluminum foil 9 together with grounding wire 12 as a data core wire. Several data core wires are arranged in a circular array and a power core wire is placed in the center and then twisted into a cable. In this embodiment Six data core wires and one power core wire are used for twisting; after twisting into a cable, the inner sheath 6, the shielding armor layer 7 and the outer sheath 8 are sequentially wrapped from the inside to the outside, and the power core wire and the data core wire The gaps between are provided with fillers 13, and the outer sheath 8 is low-smoke, halogen-free, flame-retardant vulcanized nitrile rubber.

In the utility model, an oil hole communicating with the oil-filled insulating paper 5 is provided at intervals on the conductor 1, and the high-pressure oil in the oil channel 10 is used to fully infiltrate the oil-filled insulating paper 5 to fill the gaps and improve the insulation strength.

The utility model can be further described as, as shown in Figure 2, the optical fiber communication cable core 2 includes an optical fiber 21, an optical fiber paste filling 22, a loose tube 23, an aramid yarn 24 and a sheath tube 25, and the optical fiber 21 is stranded Then the loose tube 23 is outsourced, and the gap in the loose tube 23 is filled with the optical fiber paste 22 , the loose tube 23 is outsourced with the aramid fiber wire 24 , and then the sheath tube 25 is extruded.

The utility model can be further described as, the data cable core 3 is a stranded silver-plated copper wire conductor, and the data insulating layer 11 is PET non-woven fabric.

In this embodiment, the filler 13 between the core wires is flame-retardant polypropylene, and when twisted into a cable, a layer of flame-retardant rubber is wrapped around it as the inner sheath 6, and the inner sheath 6 mainly serves as the inner pair of twisted core wires. The thickness of the inner sheath 6 is about 0.15mm. When there is an external force, it can play the role of force recoil. The inner sheath 6 is shielded by the shielding armor layer 7 braided by galvanized steel wire. The density is more than 85%, reducing the interference of external signals.

Claims (8)

1. comprehensive oil-filled cable of large electric appliances equipment, it is characterized in that: comprise conductor (1), optical-fibre communications cable core (2) and data cable core (3), described conductor (1) is hollow structure, be provided with oil duct (10) in the conductor (1), the outer wrapped conductive shielding layer (4) of conductor (1), the outer wrapped oil-filled insulating paper (5) of described conductive shielding layer (4), the outer wrapped aluminium foil (9) of oil-filled insulating paper (5) shields into the electric power heart yearn; Described data cable core (3) outsourcing winding number according to insulating barrier (11) back with optical-fibre communications cable core (2) stranded and with earth connection (12) outsourcing aluminium foil (9) as the data heart yearn, some single data heart yearn annular arrays and after the center arranges an electric power heart yearn stranded stranding, from inside to outside wrapped inner sheath (6), shield layer (7) and oversheath (8) in turn behind the stranded stranding, gap between electric power heart yearn and the data heart yearn is provided with filler (13), and described oversheath (8) is the low-smoke non-halogen flame-retardant sulfurized nitrile rubber.

2. the comprehensive oil-filled cable of large electric appliances equipment as claimed in claim 1 is characterized in that: offers an oilhole that communicates with oil-filled insulating paper (5) every a segment distance on the described conductor (1).

3. the comprehensive oil-filled cable of large electric appliances equipment as claimed in claim 1, it is characterized in that: described optical-fibre communications cable core (2) comprises optical fiber (21), the filling of optical fiber cream (22), loose sleeve pipe (23), aramid yarn (24) and protecting pipe (25), the stranded back of optical fiber (21) outsourcing pine sleeve pipe (23), space in the pine sleeve pipe (23) is filled by optical fiber cream (22), pine sleeve pipe (23) outsourcing aramid line (24) extrudes protecting pipe (25) again.

4. as the comprehensive oil-filled cable of the described large electric appliances equipment of any claim in the claim 1～3, it is characterized in that: described data cable core (3) is stranded silver-gilt copper wire conductor.

5. as the comprehensive oil-filled cable of the described large electric appliances equipment of any claim in the claim 1～3, it is characterized in that: described data insulating barrier (11) is the PET nonwoven fabrics.

6. as the comprehensive oil-filled cable of the described large electric appliances equipment of any claim in the claim 1～3, it is characterized in that: described filler (5) is polypropylene flame redardant.

7. as the comprehensive oil-filled cable of the described large electric appliances equipment of any claim in the claim 1～3, it is characterized in that: described inner sheath (6) is flame retardant rubber.

8. as the comprehensive oil-filled cable of the described large electric appliances equipment of any claim in the claim 1～3, it is characterized in that: described shield layer (7) is the zinc-coated wire braid.

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