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LOR and GFCI


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Ok, its raining cats and dogs (or reindeer or penquins) and the GFCI trips. I know why it trips - senses a bad path, but what is actually protected? The LOR is plug into a GFCI, that path of the circuit is protected. What about the connections on the LOR? How can the GFCI sense a ground issue when the end light system is being controlled by electronics? The sensing capabilities can not pass thru the electronics.?

Dave

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NH - Dave wrote:

Ok, its raining cats and dogs (or reindeer or penquins) and the GFCI trips. I know why it trips - senses a bad path, but what is actually protected? The LOR is plug into a GFCI, that path of the circuit is protected. What about the connections on the LOR? How can the GFCI sense a ground issue when the end light system is being controlled by electronics? The sensing capabilities can not pass thru the electronics.?


The "sensing capabilities" just measure the balance between the hot and neutral of the circuit. Everything going out the hot needs to come back via the neutral. The "electronics" are just essentially fancy switches that determine what path the power takes, but it still needs to come back via the neutral. If not, it could be coming to ground via someone's body -- bad thing.

So in short, your entire LOR controller and everything plugged into it are GFCI protected when plugged into a GFCI-protected outlet (whether an actual GFCI outlet, or an outlet on a GFCI breaker or downstream from a GFCI outlet).

-Tim
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