High-silicon cast iron electrode and end station ocean ground

Abstract

The invention discloses a high-silicon cast iron electrode and an end station ocean ground. The electrode comprises a body and a conductive part, and the body is in a plate shape and comprises a firstpart and an annular second part which are arranged and are connected from inside to outside. One wall surface of the second part is a conical surface, and the conical surface is gradually inclined from the inner side of the second part to the outer edge of the second part, so that the thickness of the second part is gradually reduced from the inner side of the second part to the outer edge of thesecond part. The conductive part comprises a conductive column and a conductive plate, the conductive plate is buried in the first part, one end of the conductive column is vertically connected to the conductive plate, and the other end penetrates out the first part towards the side where the conical surface is located along the axial direction of the body and is used for connecting a cable. According to the invention, by adopting the plate-shaped structure, the drainage area can be increased, a current path can be changed, the drainage uniformity can be improved, a necking effect can be eliminated, the problem that the rod-shaped electrode is easy to break can be solved, and the working life specified by the design can be achieved.

Description

technical field [0001] The invention relates to the technical field of submarine optical cable communication, in particular to a high-silicon cast iron electrode and a terminal station ocean ground. Background technique [0002] At present, the grounding device used to form the current loop in the submarine communication system generally uses a set of rod-shaped electrodes made of high-silicon cast iron with a diameter of 50mm or 100mm as the grounding electrode, and multiple cables sealed and welded to one end of the rod-shaped electrodes are connected in parallel Connect with PFE (power feed equipment, power supply) cable, and then bury the rod electrode deep underground (5-20m). During operation (the operating current is usually 0.5-1.2A), the surface of the rod-shaped electrode is gradually consumed due to electrolysis. The inhomogeneity of the rod electrode causes the neck of the rod electrode to break first due to excessive consumption and thinning, which is called "n...

AI Technical Summary

Problems solved by technology

The "neck effect" will make the rod electrode work invalid and reduce the working life

At the same time, in order to meet the 25-year service life requirement under the working current, 8 to 16 rod-shaped electrodes need to be buried 5 to 20 meters deep underground. The process involves drilling, electrode installation, cable trench excavation, cable connection, sealing, cable Buried, long installation period, high construction cost

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