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[单选题]
依据SY/T 5984-2020《油(气)田容器、管道和装卸设施接地装置安全规范》,钢储罐顶板钢体厚度不小()mm时,不应装设避雷针
A.2
B.4
C.6
D.8
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
B、4
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.2
B.4
C.6
D.8
B、4
A.10
B.30
C.4
D.100
A.8.0
B.10.0
C.12.0
D.14.0
A.断接卡应设在引下线至接地体之间
B.断接卡与上下两端采用满焊搭接,搭接长度应为扁钢宽度的两倍
C.断接卡应采用两个M12不锈钢螺栓紧固,搭接长度不小于扁钢的两倍
D.连接金属面应除锈除污,断接卡接触电阻值小于0.03欧姆