57
在光伏发电系统中,所有非载流金属部件和设备的外壳都应该接
至大地
(
PE
)
,如光伏阵列的支架,逆变器外壳等。推荐使用的地线
(黄绿色,铜线)的线径如表
4-10
所示:
In photovoltaic power generation systems, all non-current-carrying
metal components and equipment casings shall be connected to the
ground
(PE)
, such as photovoltaic array supports, inverter casings, etc.
Recommended earth line (yellow-green, copper) diameters are shown in
table 4-10:
表
4-10
接地线线径规格表
推荐线径
(
mm
)
截面积
(
mm
2
)
线号
(
AWG
)
5.0~10.0
50
AWG1
注:地线线径不小于
50mm
2
。
Table 4-10 Earth Line Diameter Specification Table
Recommended
diameter
(
mm
)
Cross-sectional area
(
mm
2
)
Line number
(
AWG
)
5.0~10.0
50
AWG1
Note: The diameter of earth line shall not be less than 50mm
2
.
我们采用机壳内和机壳外接地的方式,用户可根据现场需要选择
接地方式,地线的连接方法如下:
We adopt the grounding method of inside the casing and outside the
casing. The user can choose the grounding method according to the site
needs. The connection method of earth line is as follows: