Sanyo 190's and MX 60's in cold temps [RE-wrenches]

[Jeffery Wolfe, Global Resource Options]

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Doug,

Even though some say it wont smoke, will Outback honor the warranty? And
how many times would you like to replace the unit, and explain to the
customer, yet again, that "the manufacturer said it would work..." And,
more importantly, will the insurance company honor the insurance policy
if there is a fire? Will Outback back you up in court if there is a fire
that comes out of the MX60 because it saw 151 volts and had a bad day?

Wearing my G-D-Engineers hat, a manufacturer's stated operating limit,
particularly with electrical, is THE operating limit. Sure, boost it
over that in your own garage, but don't install it knowingly over the
limit at a customer's site. Just asking for liability these days. And
it's not like we're talking about a whole lot of design difference. The
cost of a few more fuses is sure worth being able to look any one in the
eye and say "we install to NEC. We don't agree with a lot of NEC, but we
install to it where required, and usually where not required."

Jeff Wolfe

-----Original Message-----
From: Doug Pratt [mailto:dmpratt at sbcglobal.net] 
Sent: Sunday, July 10, 2005 6:41 PM
To: RE-wrenches at topica.com
Subject: RE: Sanyo 190's and MX 60's in cold temps [RE-wrenches]


This isn't quite so critical as string sizing to stay under 600v on
grid-tie inverters. (Which, as we all know by now, DO blow up, or at
least permanently stop working if they go over-voltage.)

Cheers,
Doug Pratt

-----Original Message-----
From: Jeffery Wolfe, Global Resource Options
[mailto:jeff at globalresourceoptions.com]
Sent: Sunday, July 10, 2005 1:03 PM
To: RE-wrenches at topica.com
Subject: RE: Sanyo 190's and MX 60's in cold temps [RE-wrenches]


Dave,

Sounds like it's too high. Believing the NEC and Code, you'd need to
multiply that 135Voc by 1.25 = more than 150 V... 

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