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[单选题]
基站的馈线接地排宜采用截面积不小于()的铜排,铜排的安装应与基站室外走线架隔离。
A.100mm*10mm
B.200mm*10mm
C.200mm*20mm
D.50mm*40mm
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A.100mm*10mm
B.200mm*10mm
C.200mm*20mm
D.50mm*40mm
A.三分之一
B.三分之二
C.二分之一
D.四分之三
A.圆钢直径不小于8mm
B.扁钢截面积不小于48mm2
C.扁钢截面积不小于28mm2
D.扁钢厚度不小于4mm
E.扁钢厚度不小于3mm