圖F-8-2 跨步系數(shù)與接地網(wǎng)面積S的關(guān)系曲線(均壓帶直徑d=20mm)
三、接地網(wǎng)附近某一點(diǎn)的電位的計(jì)算:
![](http://192.168.1.17:8000/UploadFiles/UploadFiles/200942104650856.bmp)
圖F-8-3 計(jì)算點(diǎn)ρ
1.大型接地裝置--發(fā)電廠、變電所的接地裝置:
2.小型接地裝置--桿塔接地裝置(包括微波塔):
上一頁 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] 下一頁 |