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According to NREL, how does an arc fault in DC wiring compare with one in AC wiring?

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  1. It is more persistent in DC wiring
  2. It is weaker and stops by itself
  3. Arcs cannot happen in DC wiring

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References

  1. NREL: Best Practices for O&M of PV and Energy Storage Systems, 3rd ed. (2018) docs.nlr.gov/docs/fy19osti/73822.pdf Checked 2026-10-10.

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