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Three-core photoelectric composite submarine cable with 220kV rated voltage

A rated voltage, photoelectric composite technology, applied in submarine cables, power cables, power cables with shielding layers/conducting layers, etc. Achieve the effect of improving the effective utilization rate and reducing the sea area

Active Publication Date: 2013-06-26
宁波东方电缆股份有限公司
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AI Technical Summary

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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  • Three-core photoelectric composite submarine cable with 220kV rated voltage

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Embodiment Construction

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

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

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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 rated voltages of 110kV and above (including submarine cables and land cables) adopt a single-core structure. This is mainly due to the heavy weight and large size of a single electric unit of 110kV and above. For example, the use of three-core manufacturing technology for the cable manufacturing process Technology, equipment and materials are demanding and difficult. [0003] Moreover, the armor material of the single-core cable generally does not use magnetic materials, otherwise it will cause the line magnetic loss of the armor layer and reduce the effective utilization rate of electricity; in addition, compared with the three-core submarine cable of the same specification, three single-core submarine cables Need to occupy a larger area of ​​the sea. Summary of the in...

Claims

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Application Information

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Patent Type & Authority Patents(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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