Bill:
This scenario is not NEC compliant. The inverter feeds need to connect to
a dedicated OC device only, not additional loads. 690.64(B)
William Miller
At 01:22 PM 6/27/2012, you wrote:
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We are doing a tracking system and need to run a couple conductors back
out from the house to power the tracker. I suggested that we tap off of
the output from one of the AC legs of the Enphase output instead. From the
inventor of the tracker: from the manufacturer"The tracker needs 12V 10A
on demand. I have found that a small battery w/ charger nearby or AC to DC
converter to 20A (for surge) will work." These would be short surges of
perhaps 4 seconds. Since it is backfeeding onto the lines instead of
powering a device, i.e. a motor which might overheat if there is an
imbalance, the only consideration would seem to be that the frequency of
the signal remain stable. Once in the bus bar of the house panel, it would
be irrelevant that there would be a temporary voltage drop or slight imbalance.
Any thoughts? Thank you.
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