the insanity of grounding DC side (was Re: DC-GFP/2protection [RE-wrench

[Todd Cory, Mt. Shasta Energy Services]

I do not understand that statement (below). In a series circuit you interrupt the
circuit at any point and current no longer flows. On a floating system the current
is "live" only with respect to the other conductor. So why would you need over
current on both wires?

Todd

Hugh Piggott wrote:

> The overcurrent devices are there in case of a fault.  You only need
> one overcurrent device when you ground one conductor.  You only have
> one live conductor left to worry about.  If the system is floating
> then both conductors are potentially live, and need protection.

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