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Rated voltage 220kv three-core photoelectric composite submarine cable

A rated voltage, photoelectric composite technology, applied in the direction of submarine cables, power cables, power cables with shielding layer/conductive layer, etc., can solve the problems of reducing the effective utilization rate of power, occupying sea areas, and magnetic loss of armored layers. Achieve the effect of increasing the effective utilization rate and reducing the sea area

Active Publication Date: 2011-12-21
宁波东方电缆股份有限公司
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Problems solved by technology

[0003] Moreover, the armor material of single-core cables generally does not use magnetic materials, otherwise it will cause magnetic loss of the line of the armor layer and reduce the effective utilization rate of power; in addition, compared with three-core submarine cables of the same specification, three single-core submarine cables Need to occupy a large area of ​​sea area

Method used

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  • Rated voltage 220kv three-core photoelectric composite submarine cable
  • Rated voltage 220kv three-core photoelectric composite submarine cable

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Embodiment Construction

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0014] As shown in the figure, the three-core photoelectric composite submarine cable with a rated voltage of 220kV includes an outer covering layer 1, an armor layer 2 and an inner lining layer 3 distributed in sequence from the outside to the inside. The inner lining layer 3 is provided with three two-phase outer Cut electric unit, electric unit includes conductor 7, conductor shielding layer 8, insulating layer 9, insulating shielding layer 10, water blocking buffer layer 11, lead alloy sleeve 12 and inner sheath 13 distributed in sequence from inside to outside, electric unit The three gaps surrounded by the inner liner 3 are filled with a plurality of filling units, the central gap surrounded by the three electrical units is filled with a parallel filling rope 14, and the three electrical units and the parallel filling rope 14 Twisted wit...

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Abstract

The invention discloses a three-core photoelectric composite submarine cable with 220kV rated voltage. The cable is characterized by comprising an outer layer, an armor layer and a lining layer which are distributed from outside to inside in turn, wherein three electrical units in which every two units are externally tangential to each other are arranged in the lining layer; a plurality of filling units are filled in three gaps which are enclosed by the electrical units and the lining layer; the three electrical units and all the filling units are stranded into a submarine cable main core part; a gluing cloth tape is lapped outside the stranded submarine cable main core part; and at least one of all the filling units is an optical unit, and the rest filling units are filling ropes. The invention has the advantages that: the three-core photoelectric composite submarine cable with the 220kV rated voltage has a balanced phase during use, does not have requirements on armoring materials, can prevent the magnetic loss of the armor layer and improves the effective utilization rate of power; and the occupied sea area is greatly reduced compared with that of a single-core submarine cable with the same specification.

Description

technical field [0001] The invention relates to a cable, in particular to a three-core photoelectric composite submarine cable with a rated voltage of 220kV. Background technique [0002] At present, cables with a rated voltage of 110kV and above (including submarine cables and land cables) adopt a single-core structure, which is mainly due to the heavy weight and large size of a single electric unit of 110kV and above, such as the use of three-core manufacturing. Technology, equipment and materials are demanding and difficult. [0003] Moreover, the armor material of single-core cables generally does not use magnetic materials, otherwise it will cause magnetic loss of the line of the armor layer and reduce the effective utilization rate of power; in addition, compared with three-core submarine cables of the same specification, three single-core submarine cables It needs to occupy a large area of ​​sea area. Contents of the invention [0004] The technical problem to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/00H01B9/02H01B7/14
Inventor 夏峰周则威叶世杰张晨江
Owner 宁波东方电缆股份有限公司
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