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
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[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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