Optical fiber composite frame superterranean phase line and system for distribution type temperature strain detection

A technology of optical fiber composite and temperature strain, which is applied in the direction of measuring devices, instruments, power cables, etc., can solve the problems that the distributed strain monitoring of overhead phase lines cannot be used, and achieve the effect of improving the monitoring level and ensuring safety

Active Publication Date: 2013-09-25
STATE GRID CORP OF CHINA +1
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Problems solved by technology

The Chinese patent application number CN201120020503.7 discloses an optical fiber composite overhead phase line with temperature measurement function. Due to the excess length of the optical fiber inside the optical fiber composite over

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  • Optical fiber composite frame superterranean phase line and system for distribution type temperature strain detection

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Embodiment Construction

[0010] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0011] like figure 1 The embodiment shown is an optical fiber composite overhead phase wire for distributed temperature and strain monitoring, which includes an aluminum-clad steel wire 3 twisted together in sequence at the center of the composite overhead phase wire, a bare fiber set in a pipe fitting 1. The single-mode tight-wrapped optical fiber 2 arranged in the pipe and the aluminum wire 4 twisted on the outside of the aluminum-clad steel wire 3, the bare fiber 1 and the single-mode tight-wrapped optical fiber 2, the bare fiber 1 There is an excess length, the number of the single-mode tight-wrapped optical fiber 2 is not less than two, and the two ends of the single-mode tight-wrapped optical fiber 2 are flush with the two ends of the tube where it is located. In this embodiment, the bare fiber 1 is contained. The...

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Abstract

An optical fiber composite frame superterranean phase line for distribution type temperature strain detection comprises aluminum clad steel wires, bare fibers, single-mold tightly packaged optical fibers and aluminum wires, wherein the aluminum clad steel wires are located at the center of the optical fiber composite frame superterranean phase line and are stranded together, the bare fibers and the single-mold tightly packaged optical fibers are arranged inside pipe fittings, and the aluminum clad steel wires are stranded on the outer sides of the aluminum clad steel wires, the outer sides of the bare fibers, and the outer sides of the single-mold tightly packaged optical fibers. The bare fibers have redundant lengths, the number of the single-mold tightly packaged optical fibers is not less than two, and the single-mold tightly packaged optical fibers have no redundant length. The optical fiber composite frame superterranean phase line improves the monitoring level in a power transmission process, and guarantees safety of power transmission.

Description

technical field [0001] The invention relates to an optical fiber composite overhead phase wire and a system, in particular to an optical fiber composite overhead phase wire and a system for distributed temperature and strain monitoring. Background technique [0002] Optical Phase Conductor (OPPC for short) is a new type of special optical cable for power communication systems. It is an optical cable that combines optical fiber units in conductors in the traditional phase conductor structure. This kind of optical cable makes full use of the line resources of the power system itself, especially the power distribution network system, avoiding the contradictions with the outside world in terms of frequency resources, routing coordination, electromagnetic compatibility, etc., so that it has dual functions of power transmission and communication , so it has been widely used in power grid transmission lines in recent years. [0003] Optical fiber composite overhead phase line gene...

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Application Information

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IPC IPC(8): H01B9/00G01D21/02
Inventor 雷煜卿陈希汪洋涂勤昌
Owner STATE GRID CORP OF CHINA
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