Submarine cable landing section operation environment measurement and control device

Abstract

The invention provides a submarine cable landing section operation environment measurement and control device. The measurement and control device comprises a soil thermal resistance coefficient sensor, a soil moisture content sensor, a field measuring and control unit, a remote monitoring host and a soil parameter adjusting device. The soil thermal resistance coefficient sensor and the soil moisture content sensor are connected with the field measuring and control unit; and the field measuring and control unit and the soil parameter adjusting device are connected with the remote monitoring host. According to the technical scheme, by monitoring soil temperature, thermal resistance coefficient and moisture content, and adjusting the soil moisture content, and then, adjusting the soil thermal resistance coefficient or directly adjusting the soil temperature according to the monitoring results, purposes of improving submarine cable landing section line heat dissipation capacity and improving submarine cable landing section current-carrying capacity are achieved.

Description

Technical field [0001] The invention relates to a measurement and control device, in particular to a measurement and control device for adjusting the soil temperature and thermal resistance coefficient of a submarine cable landing section to increase the current carrying capacity of the submarine cable landing section. Background technique [0002] According to the difference of cable laying positions, submarine cables can be divided into three parts: submarine section, landing section and air section. In the submarine cable landing section, the cable is generally buried directly in the soil (including sand or other special backfill materials). The ambient temperature and the thermal resistance coefficient of the soil near the cable line are important parameters that determine the current carrying capacity of the cable line. Due to the high ambient temperature in the landing section and the larger thermal resistance coefficient of the soil, the current carrying capacity of the l...

AI Technical Summary

Problems solved by technology

Among them, the method of stripping the armor involves the design and construction of the circuit, which is difficult to implement on the existing circuit

The method of laying cooling water pipes and backfilling can improve the heat dissipation capacity of submarine lines to a certain extent, but the cooling water pipes have higher requirements on equipment; Soil properties may still change

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