[RE-wrenches] 600 v pv lead separation
william at millersolar.com
william at millersolar.com
Wed Apr 9 12:54:00 PDT 2014
Brian:
You and I were right on-target with our evaluation. Below is the message I
received from Morningstar:
The partition was added to satisfy UL/ETL requirements to prevent
co-mingling of high voltage(600V) input wires and low voltage battery and
communication wiring. If the insulation on your battery and/or
communication cabling is rated for 600V, co-mingling shouldn't be an issue.
However, if the insulations is not rated for high voltage, we would suggest
leaving the divider intact.
I applaud Moringstar for backing down on their original instructions and
first email reply. It is unfortunate that they were not more precise in
their original instructions-some installers may have wasted time and money
on conduit and partitions.
I don't know if I could find wire not rated for 600 volts, so this is really
a non-issue.
William Miller
Lic 773985
millersolar.com
805-438-5600
-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Brian
Mehalic
Sent: Monday, April 07, 2014 11:46 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] 600 v pv lead separation
I don't know, but maybe it's a provision for using lower voltage rated wire
for the batteries?
Brian
> On Apr 7, 2014, at 2:17 PM, William Miller <
<mailto:william at millersolar.com> william at millersolar.com> wrote:
>
> Colleagues:
>
> I am installing a set of Tristar 600 volt input charge controllers. There
are separate compartments for PV and battery leads. Reviewing the 2014 NEC,
I see no requirement that these sets of leads be separated.
>
> I wrote to the manufacturer just now asking the same question.
>
> Have any of you looked into this yet?
>
> Thanks in advance.
>
> William Miller
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