miggy7326 miggy7326
  • 06-03-2024
  • Physics
contestada

When DC PV source and DC PV output circuits are installed in metal conduits, the metal conduits must have grounding/bonding busings if the enclosures they connect to have concentric knockouts and if the circuits opterate at more than _______ volts.
1) 150
2) 250
3) 450
4) 600

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