Coldest Daytime Ambient Temperature [RE-wrenches]

[Joel Davidson]

John,
-15 gives you the same NEC690.7 Voc 1.25 correction factor as Torrey, UT's
lowest temperature -35 F for February 1989.
Best regards and stay warm,
Joel Davidson

John Raynes wrote:

> Hi Joel,
>
> We're in a very sparsely populated area, that is situated in a high
> mountain valley with its own unique micro-climate.  All of which is to say
> that I'm finding weather data specific to Wayne Co. Utah is hard to come
> by.  (I imagine that it's out there somewhere...)   At this point I'm
> considering our worst case ambient to be about -15 F at 7000 ft. because of
> the heat loss on our cold clear winter nights.
>
> John Raynes
> RE Solar
>
> At 03:10 PM 10/14/03 -0400, you wrote:
> >John,
> >You are probably right. What ambient temperature do you use for NEC Table
> >690.7?
> >Best regards,
> >Joel Davidson
>
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