Construction method of a power supply system

Abstract

The invention provides a power supply system which comprises a laneway pavement, a multiple grounding body, a multiple grounding wire, a chamber and a laneway ditch, wherein the chamber is arranged onone side of the laneway pavement, and the laneway ditch is formed in the bottom of the laneway pavement. A power supply switch box is arranged in the chamber, one end of the multiple grounding body is embedded into the laneway ditch along the bottom of the laneway ditch, the other end of the multiple grounding body is exposed, one end of the multiple grounding wire is connected with the exposed end of the multiple grounding body, and the other end of the multiple grounding wire is connected with the power supply switch box. The power supply system has the advantages that the chamber for placing the power supply switch box is formed, impact of an underground vehicle on the power supply switch box is furthest reduced, the influence of blasting impact waves on impact vibration of elements and components in the power supply switch box is furthest reduced, safety and reliability of a power supply system for a mining operation surface are improved, and power safety of mining personnel is ensured.

Description

technical field [0001] The invention relates to a construction method of a power supply system, and belongs to the technical field of power supply system design for underground mining working faces of mines. Background technique [0002] With the development of science and technology, the improvement of the mechanization level of mine underground operations and the wide application of various monitoring facilities, the requirements for power supply reliability, safety and diversity of power supply are getting higher and higher in underground mining work. [0003] However, in the power supply point of the traditional underground mining face, the electrical equipment is generally installed in the depression of the shaft on the side of the ditch, and there is no dedicated power box chamber for the power supply point, and there is a possibility that the impact of the underground vehicle on the power switch box will damage the power supply facilities. and short-circuit faults, th...

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Problems solved by technology

[0003] However, in the power supply point of the traditional underground mining face, the electrical equipment is generally installed in the depression of the shaft on the side of the ditch, and there is no dedicated power box chamber for the power supply point, and there is a possibility that the impact of the underground vehicle on the power switch box will damage the power supply facilities. and short-circuit faults, the impact and vibration of the original components in the power switch box caused by blasting shock waves caused non-failure power outages, and the grounding resistance did not reach the industry standard value, which could easily cause electric shock accidents and many other electrical safety hazards. At the same time, the power supply reliability of the mining face is not good High, and then revealed that there are some secondary accidents in the mining face, how to prevent these accidents from happening is a problem to be solved by those skilled in the art

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