Optical fiber combined overhead earth wire

Abstract

A C current lightning strike resisting test system for optical fiber overhead ground line, which contains OPGM sample mechanical device, OPGW lightning strike test source, control unit, electricity measurement unit, optical measurement unit, electrode and connection circuit, wherein the lightning strike test source transmitting out lightning strike current and applying to OPGW sample through discharge electrode, control unit for controlling quick electrode triggering discharge and keeping the electric arc current for preset time, electricity measurement unit for measuring lightning continuous current and converting to transferring charge quantity, the light power meter in optical measurement unit measuring light decay. In said invention, the C current is 100-400 ampere, keeping for more than 0.5 second.

Description

technical field [0001] The invention relates to the technical field of power system communication, in particular to a "C" current lightning strike resistance test system of a special power optical cable and optical fiber composite overhead ground wire (OPGW). Background technique [0002] Optical fiber composite overhead ground wire (OPGW) is a composite overhead ground wire that integrates optical fiber communication functions and transmission line lightning protection functions. It is an important development direction of special optical cables for power. Wire (OPGW) began to be adopted on a large scale. However, due to the lack of attention to the test standards of optical cable lightning strikes, optical cable design, production and other reasons in the past, the lightning resistance performance of optical fiber composite overhead ground wire (OPGW) is low, so the phenomenon of lightning strikes in OPGW in operation is becoming more and more serious. . [0003] Since t...

AI Technical Summary

Problems solved by technology

[0006] Before 2003, due to the reason of the test equipment, the qualified OPGW lightning shock resistance simulation test could not be carried out in China. When domestic products need to do this test, usually the samples can only be sent to foreign countries, and the high test fee will be paid by foreign countries. Laboratory to complete the project test

Through comparative analysis, it can be seen that the "C" current lightning strike test system of optical fiber composite overhead ground wire (OPGW) has not been reported at home and abroad.

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