Major power lines should be drawn with a double line. The gap between the lines may indicate the extent of the powerline. Very large carrying masts shall be represented in plan shape using symbol Building (521) or High tower (524). In this case, the cable lines can be left out (the map shows only the pylons). <b>Note: When drawing this symbol, press space to toggle placing the pylon symbols at new nodes.</b>
<b>Note: When drawing this symbol, press space to toggle placing the pylon symbols at new nodes.</b>
<b>注意:绘制此符号时,请按空格键以切换将定向塔符号放置在新节点上。</ b>