送电线路通过林区,应砍伐出通道。通道净宽度不应小于线路宽度加林区主要树种高度的2倍。但若树木自然生长髙度不超过2m,导线与树木(考虑自然生长髙度)之间的垂...

作者: rantiku 人气: - 评论: 0
问题 送电线路通过林区,应砍伐出通道。通道净宽度不应小于线路宽度加林区主要树种高度的2倍。但若树木自然生长髙度不超过2m,导线与树木(考虑自然生长髙度)之间的垂直距离。对220kV线路不小于()时,在不妨碍架线施工和运行检修的前提下,可不 砍伐通道,
选项 A.3m; B.4.5m; C.5m; D.6m0
答案 B
解析

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