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论文题目：煤矿10kV架空线防雷技术研究

专 业：电气工程及其自动化

本 科 生：井鹏飞 （签名） 指导老师：李忠 （签名）

摘 要

我国10kV线路纵横延伸,地处旷野,雷雨季易遭雷击。由于10kV系统内的设备绝缘水平和耐雷水平低，因此当发生雷电灾害时，造成的损失往往比较大，严重影响到了人们的正常生活生产，有时甚至能威胁到人们的生命安全。因此配电线路的避雷防雷保护研究有着十分重要的意义。

本设计研究的对象是一段为煤矿风机供电的10kV配电线路，一旦该段线路因为雷击造成跳闸甚至更严重的情况，井下风机就会停止运转，对煤矿的生产和矿工的生命安全造成极大的威胁。

本文根据线路的具体情况，首先对线路的雷电灾害情况进行分析，然后提出可以使用的方案，对这些方案进行进一步的分析，最终确定每种措施的具体实施方法，具体的措施为：1通过线路避雷器对特殊位置杆塔进行保护；2全线架设避雷线；3降低杆塔的接地电阻；4加强线路的绝缘。

通过以上这几种防雷措施的实施，可以提高耐雷水平，使本段线路的供电更加安全可靠。

关键词：10kV架空线路，耐雷水平，安全

Subject:The Research Of 10kv Overhead Line Lighting Protection Technology In Coal Mine

Specialty:Electric Engineering and Automation

Name: Jing Pengfei (Signature) Instructor: Li Zhong (Signature)

ABSTRACT

10kV distribution line is always set in countryside,There is not so much tall buildings,so when storm is coming.10kV distribution line is easy to be strucked by lightning.Because of 10kV distribution line's Insulation level is low,when Lightning occurs it always Bring heavy losses to system.It seriously affected the normal life of people production, sometimes even can pose a threat to the safety of people's life.Thus the distribution line lightning protection research is very important.

The object of this paper is a power supply line for a coal mine's wind machine.Once the line tripped or even more severe situation happened because of lightning stroke,The wind machine underground would stop working.It seriously affects the safety in production and the life safety of miners

The main task of this article is:first analyzes the basic conditions of the line,and then make a feasible plan.This paper contains the following programs:1 Installing lightning line across the line;2 reducing the tower grounding resistance; 3 Strengthening the Insulation level of the line;4 using line arrester to protect the tower of special position.

By using these programs to prove the line lightning protection level to make sure the line's

power supply is more safety and reliably.

KEY WORDS：10kV distribution line，Lightning resisting level，safety