About Huawei’s smart photovoltaic solution grounding system design, which of the following is correct? (Multiple Choice)
A . Grounding flat steel is installed next to the cement column at each end of each bracket, and all grounded flat steel rings are welded back together after being buried in the ground;
B . Grounding flat steel coated with anti-rust paint, and annual derusting and painting maintenance;
C . The inverter ground wire is connected to the component bracket, and the bracket is grounded.
D . The device is reliably grounded nearby
Answer: ABD
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