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34
External Grounding
For ease of onsite cable connection, two grounding points are designed at the exterior of the
MV Station, as shown in the figure below. On site, reliably connect both or either of the two
grounding points according to actual conditions.
The dimensions of the grounding copper point are as follows:
The external grounding points of the MV Station can be grounded in the following two
manners:
•
Connect the grounding cable to the external grounding points with M10 bolts, where the
recommended cable is of 50 mm
2
to 95 mm
2
.
•
Weld the grounding steel flat onto the external grounding point, after which anti-corrosion
processing needs to be performed.
Perform the external grounding according to the on-site situation and the instructions of the
plant staff.
The grounding resistance should be no more than 4Ω. It is recommended that two points of
the MV Station should be connected to the ground system of the PV plant.
The grounding resistance should be obtained from local standards and
regulations.
System Manual
Содержание SG3425UD-MV
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