[RE-wrenches] DLO wires in PV systems

[Mark Frye]

Mike,
 
If they are not in conduit (a raceway), then they are exposed.  They may not
be and must not be subject to physical damage (protected by the modules,
etc.), but that does not mean they are not exposed and must have the USE-2 /
PV rating.
 
Mark Frye 
Berkeley Solar Electric Systems 
303 Redbud Way 
Nevada City,  CA 95959 
(530) 401-8024 
 <http://www.berkeleysolar.com/> www.berkeleysolar.com  
 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Michael Cook
Sent: Monday, December 01, 2008 1:01 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] DLO wires in PV systems



The wires are in a Solardock mounting system, so they are not exposed, and
are then run in conduit.  Is the UV exposure rating the only difference?

 

 

 

Mike

 

 

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From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Mark Frye
Sent: Monday, December 01, 2008 3:51 PM
To: 'RE-wrenches'
Subject: Re: [RE-wrenches] DLO wires in PV systems

 

Mike,

The RHH/RHW-2 do not cross to USE-2 because they do not have any rating for
UV exposure.

 

If these conductors are run outside of conduit on the array, you need USE-2
or PV conductor.


Mark Frye 
Berkeley Solar Electric Systems 
303 Redbud Way 
Nevada City,  CA 95959 
(530) 401-8024 
 <http://www.berkeleysolar.com/> www.berkeleysolar.com  

 

 

  _____  

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Michael Cook
Sent: Monday, December 01, 2008 12:47 PM
To: 'RE-wrenches'
Subject: [RE-wrenches] DLO wires in PV systems

We have a 4KW pv system installed and the local inspector wants to use this
as a test case so he is crossing all T's and dotting all I's.  Which I am
happy to help him out with training his other inspectors   We are running
into an issue on the module output wires.  USE-2 or PV rated is how the code
book reads.  The wire we have been using on these systems is DLO (diesel
locomotive) which carries the ratings of RHH and RHW-2, which seems to cross
with the USE-2.  Does anyone have any documentation showing this cross?  If
not, I guess I will be switching the wire to USE-2/RHW-2 because it needs to
go into conduit.

 

 

 

Mike

mike at powerupco.com

 

 

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