根据目前的技术，据估计，在市郊地区地下输电线路的造价平均是架空线路的8.5—1 O倍。
On the basis of present technology, it is estimated that in suburban areas underground lines cost, on the average, about 8.5 - 10 times more than overhead lines .
根据国家电网(他们也需要尽早更换输电线路)所说：这使得安装地下电缆比架空线路昂贵12到17倍。
That makes installing subsurface cables 12 to 17 times as pricey as overhead lines, according to National Grid (they also need replacing sooner).
反对这些高耸的输电塔的人说，能解决这个问题的是把输电线埋在地下：现今英国有13，00千米的高压电缆，但只有950千米的高压电缆埋在地下，它们多数埋在市区。
Opponents of towering pylons say the answer is to bury power lines: at present only 950km of Britain’s 13, 000km of high-voltage cable runs underground, most of it in urban areas.
应用推荐