[attach]29136[/attach]
Rg = resistance of grid conductors ()
= Soil resistivity encountered by grid conductors buried at depth h in ohm
A = Area covered by grid of dimension in square meters
LT = Total length of grid conductors in meters
h = Depth of grid burial in meters
谁知道这个公式是什么意思啊!知道的指点指点!
没人?
Rg = resistance of grid conductors
意思是 Rg = 网格导体电阻
ρ = Soil resistivity encountered by grid conductors buried at depth h in ohm
意思是 ρ = 网格所在的深度为h的土壤电阻(以欧姆为单位)
A = Area covered by grid of dimension in square meters
意思是 A = 网格覆盖范围的面积(平方米)
LT = Total length of grid conductors in meters
意思是 LT = 网格的总长度(米)
h = Depth of grid burial in meters
意思是 h = 网格掩埋的深度(米)
也就是说,这个公式是求地网的阻值的,当然,知道其中的任意4项,也可求出第5项来。
改了下:
Rg = resistance of grid conductors
意思是 Rg = 地网接地电阻
ρ = Soil resistivity encountered by grid conductors buried at depth h in ohm
意思是 ρ = 地网的平均土壤电阻率(以欧姆米为单位)
A = Area covered by grid of dimension in square meters
意思是 A = 地网面积(平方米)
LT = Total length of grid conductors in meters
意思是 LT = 地网的总长度(米)
h = Depth of grid burial in meters
意思是 h = 地网深度(米)
晕啊
你的二个地网会重叠,所以肯定不正确。
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