Connecting device and method for phase line composite optical cable of high-voltage power grid

Abstract

The invention relates to a connecting device for a phase line composite optical cable of a high-voltage power grid, which is characterized in that an insulating support column (8) is arranged on a base (12), a fiber coiling cavity (7) is arranged on the insulating support column, the fiber coiling cavity (7) is provided with a cavity cover (6), a fiber fusing disc (16) is placed in the fiber coiling cavity (7), and the fiber coiling cavity and the cavity cover are made of non-metal insulating materials; an OPPC (Optical Phase Conductor) optical cable (1) is sleeved with an optical fiber channel insulating outer sleeve (4), and an optical fiber (13) stripped from the OPPC optical cable (1) penetrates through a fiber core channel (15), is connected from the left side of the fiber coiling cavity (7), is welded through the fiber fusing disc (16) and then is output from the right side of the fiber coiling cavity (7); a glue injection hole (5) is formed in the position, which is close to theleft side of the fiber coiling cavity, of the insulating outer sleeve (4) and communicated with the fiber core channel (15), a sealant (14) is injected into the fiber core channel (15) from the glueinjection hole (5), a glue overflow hole (3) is formed in the position, which is away from the left side of the fiber coiling cavity, of the insulating outer sleeve (4) and communicated with the fibercore channel (15). The invention further discloses a connecting method.

Description

technical field [0001] The invention relates to the technical field of electric special optical cables, in particular to a splicing device for high-voltage power grid phase-line composite optical cables (OPPC, Optical Phase Conductor) and a splicing method for high-voltage power grid phase-line composite optical cables. Background technique [0002] Optical Phase Conductor OPPC (Optical Phase Conductor) is a new type of special optical cable for power. It is an optical cable that combines optical fiber units in the phase line. It has the dual functions of phase line and communication. It is mainly used for voltage levels below 110kV, urban and suburban distribution power grid, rural power grid. [0003] In the medium and low voltage power grids, especially the distribution lines below 35kV, some ground wires may not be erected, so it is impossible to install OPGW (Optical Fiber Composite Overhead Grand Wire, overhead ground wire composite optical cable). In all power grids,...

AI Technical Summary

Problems solved by technology

[0005] At present, in the application of phase-line composite optical cable technology in the domestic power system high-voltage power grid, the installation and design defects of the splice box often cause the optical fiber in the splice box to burn out, which directly affects the interruption of the optical fiber channel in the power system and threatens the safe operation of the power grid.

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