·PAGE\*MERGEFORMAT24毕业设计题目荆州长江大桥的防雷设计学生姓名学号学院专业安全工程指导教师二Ｏ一七年五月二十日目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc483658022"引言PAGEREF_Toc483658022\h4HYPERLINK\l"_Toc483658023"1.大桥现场勘查概况PAGEREF_Toc483658023\h5HYPERLINK\l"_Toc483658024"2.外部防雷PAGEREF_Toc483658024\h6HYPERLINK\l"_Toc483658025"2.1防雷等级的计算PAGEREF_Toc483658025\h6HYPERLINK\l"_Toc483658026"2.2桥梁的外部防雷PAGEREF_Toc483658026\h7HYPERLINK\l"_Toc483658027"2.2.1接闪器PAGEREF_Toc483658027\h7HYPERLINK\l"_Toc483658028"2.2.2引下线PAGEREF_Toc483658028\h9HYPERLINK\l"_Toc483658029"2.2.3接地装置PAGEREF_Toc483658029\h11HYPERLINK\l"_Toc483658030"2.3管理区和收费站的外部防雷PAGEREF_Toc483658030\h12HYPERLINK\l"_Toc483658031"2.3.1接闪器PAGEREF_Toc483658031\h12HYPERLINK\l"_Toc483658032"2.3.2引下线PAGEREF_Toc483658032\h14HYPERLINK\l"_Toc483658033"2.3.3接地装置PAGEREF_Toc483658033\h14HYPERLINK\l"_Toc483658034"3.内部防雷PAGEREF_Toc483658034\h15HYPERLINK\l"_Toc483658035"3.1等电位连接PAGEREF_Toc483658035\h16HYPERLINK\l"_Toc483658036"3.1.1桥面PAGEREF_Toc483658036\h16HYPERLINK\l"_Toc483658037"3.1.2管理区和收费站PAGEREF_Toc483658037\h16HYPERLINK\l"_Toc483658038"3.2供电系统部分PAGEREF_Toc483658038\h17HYPERLINK\l"_Toc483658039"3.2.1管理区PAGEREF_Toc483658039\h17HYPERLINK\l"_Toc483658040"3.2.2收费站PAGEREF_Toc483658040\h18HYPERLINK\l"_Toc483658041"3.2.3其他电源防雷PAGEREF_Toc483658041\h19HYPERLINK\l"_Toc483658042"3.3信号系统PAGEREF_Toc483658042\h19HYPERLINK\l"_Toc483658043"3.3.1管理区PAGEREF_Toc483658043\h19HYPERLINK\l"_Toc483658044"3.3.2收费站PAGEREF_Toc483658044\h20HYPERLINK\l"_Toc483658045"3.4屏蔽PAGEREF_Toc483658045\h21HYPERLINK\l"_Toc483658046"3.4.1管理区PAGEREF_Toc483658046\h21HYPERLINK\l"_Toc483658047"3.4.2电缆线PAGEREF_Toc483658047\h21HYPERLINK\l"_Toc483658048"4.结论PAGEREF_Toc483658048\h22HYPERLINK\l"_Toc483658049"参考文献PAGEREF_Toc483658049\h22HYPERLINK\l"_Toc483658050"致谢P