Combining array strings before the combiner panel

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Combining array strings before the combiner panel

Postby Johnt on Tue Aug 01, 2017 2:22 pm

If I have a 2 string array, can I splice the 2 strings together to an appropriate sized feed conductor and then terminate to the combiner panel ,or does each string have to be individually run to the combiner?

Example:

String NEC x1.56= 10amps
Array NEC x1.56= 20amps

Wirenut the 2 strings to a #8 (sized for line loss) and land on 20a combiner breaker. Permitted by NEC or not.

I want to be code compliant for permit.
Johnt
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My RE system: VFX3648, FM80, Mate3, Surrette 4KS21P batteries, 3000w evergreen panels on trackers

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