A comprehensive grounding system for railway

Abstract

The invention discloses a comprehensive grounding system for railroads. The comprehensive grounding system comprises railroad equipment grounding terminals, passing-through ground wires, grounding terminal lead wires, a horizontal lead wire, grounding pole lead wires, passing-through ground wire grounding terminals and grounding wires, wherein the railroad equipment grounding terminals are connected with the passing-through ground wires through the grounding terminal lead wires; the passing-through ground wires are connected with the passing-through ground wire grounding terminals through the grounding pole lead wires; the grounding pole lead wires are connected with the grounding wires through the passing-through ground wire grounding terminals; the passing-through ground wires are laid on both sides of a railroad bed in parallel and correspond to the same mileage point of the railroad equipment grounding terminals; and the horizontal lead wire is arranged to connect the two parallel passing-through ground wires. The comprehensive grounding system for the railroad is characterized in that the passing-through ground wires are made of round steel. Experiments prove that the round steel has higher electrical conductivity, flame retardancy, corrosion resistance, environmental friendliness and engineering applicability if being used as the passing-through ground wires, the construction cost of the comprehensive grounding system for the railroad is greatly reduced, and the performance cost ratio is high.

Description

technical field [0001] The invention relates to an integrated grounding system, in particular to an integrated grounding system for railways. Background technique [0002] The penetrating ground wire is a key component of the railway integrated grounding system. It adopts the unified grounding method of the whole line to ensure the equipotential grounding of the whole line and eliminate the unbalanced current caused by the potential difference between different equipment. The ground wire is connected to the ground and the rail, which meets the requirements of long-term good grounding resistance value of the large-scale grounding system, and realizes effective protection for personnel and equipment. [0003] At present, the grounding of the strong and weak current systems of railways in Germany, France and other European countries adopts a comprehensive grounding method, and the steel bars in the building are used as natural grounding electrodes and down conductors. For the ...

AI Technical Summary

Problems solved by technology

[0005] However, since the through-ground wires in the bridge and tunnel sections are laid in cable troughs, they will not be charged when no trains pass by, and the economic value of copper wires is relatively high. The through-ground wires in these sections are seriously stolen. The construction unit will bring a lot of regulatory burdens to the takeover unit after opening and operation, which will increase the cost of engineering and operation

Due to the serious theft of the through ground wire, it greatly affects the grounding performance of the integrated grounding system and brings potential safety hazards

[0006] At the same time, fire accidents frequently occur in the existing through-ground wire products, and economic losses are caused by spontaneous combustion or ignition of cables during use and installation, which also poses a great hidden danger to the safe operation of the railway system.

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