I am installing a customer purchased solar pool pumping 'kit.'
It is stand alone, direct connect, no batteries. It consists of four 12 volt panels connected in series to drive a 48VDC pump. The 'kit' comes complete with a disconnect switch box with terminals to connect the provided motor controller.
Since this is only 48 volts, I do not need to 'solidly connect' one side of the DC source, so the system is considered 'ungrounded.'
Does anyone know for sure if I am required to install ground fault protection for this stand alone 48VDC system?
It seems both NEC 690.5 and 690.35 states that it is required.
I live in an area without electrical AHJ, so there is nobody locally to ask.
thanks,
joe
It is stand alone, direct connect, no batteries. It consists of four 12 volt panels connected in series to drive a 48VDC pump. The 'kit' comes complete with a disconnect switch box with terminals to connect the provided motor controller.
Since this is only 48 volts, I do not need to 'solidly connect' one side of the DC source, so the system is considered 'ungrounded.'
Does anyone know for sure if I am required to install ground fault protection for this stand alone 48VDC system?
It seems both NEC 690.5 and 690.35 states that it is required.
I live in an area without electrical AHJ, so there is nobody locally to ask.
thanks,
joe