[RE-wrenches] Wire management devices
Daniel Young
dyoung at dovetailsolar.com
Tue Oct 14 12:23:00 PDT 2014
I think the answer also depends on the scale of the project. Are we talking
a small residential system? Or larger commercial/utility? I'd assume
smaller, as you would likely just fence in a larger scale system, solving
the accessibility issue.
For small scale ground mounts, we'll often use the Pro-Solar Ground Trac,
and simply put a strip of aluminum sheet metal (they sell rolls of it for
making custom gutters) between certain rails, using a metal break to give it
1" wings on the side for attaching to the rails. Then we use a liquid tight
to get the PV wire from the cavity, and send it to a J-Box/Combiner/Inverter
on the array. I'm attempting to attach 2 images, hopefully they go through.
This also has the benefit of making the array look very trim.
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
Lead Systems Designer for:
www.dovetailsolar.com
-----Original Message-----
From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org] On
Behalf Of Christopher Warfel
Sent: Tuesday, October 14, 2014 10:02 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Wire management devices
Thanks Rob, We have been using Unirac for many years and slow to change
(since we have so much of it in inventory). I think with the difficulty of
pv module disconnects now, and good wire management, a barrier is really a
solution looking for a problem. I'll take a look. Thank you again. Chris
On 10/13/2014 3:54 PM, RE Ellison wrote:
> I have mentioned in the past, look into US Solar Mounts, The wire
management is built in!
>
> They have several different styles of mounts and many of them have
> wire management built into the frames
>
> Custom-built for each install so you tell him what you're using and
> what you need and they will tell you what will work best
>
> Another product that's made in the USA!
> Bob Ellison
>
>
> Bob Ellison
>
>> On Oct 13, 2014, at 1:34 PM, Christopher Warfel
<cwarfel at entech-engineering.com> wrote:
>>
>> I am well aware of all the possibilities of danger in many aspects of
life. This is not a main one in my opinion, and given that there are no
good solutions indicates to me that it is mostly an unsolvable problem
unless you wish to be impractical. All I asked for were products that could
provide a solution. . I have inspected in several states with solar
programs that will not enforce securing electrical enclosures in living
spaces that have access to 240 v. I even seen this situation in a children's
play room.
>> I think that is more than a little more serious issue.
>>
>>
>>
>>> On 10/13/2014 11:27 AM, William Miller wrote:
>>> Christopher:
>>>
>>> I believe strongly that the code requirement to protect PV wires
>>> from unauthorized personnel is justified. Ground mount arrays are
>>> essentially jungle gyms and could attract children to climb. If a
>>> 50 pound child inadvertently swings on a PV cable across a sharp
>>> metal edge the insulation could easily be compromised. The current
>>> limited nature of PV means the current will sink through the short
>>> until the short is opened, leaving up to
>>> 600 volts at fatal amperage exposed to the touch. Inadequate ground
>>> fault interruption technology does little to prevent the problem.
>>>
>>> You cannot legally install a convenience receptacle at any height
>>> above ground with the individual conductors exposed, so why should
>>> one be allowed to install PV with individual conductors readily
accessible?
>>>
>>> I grant you that shielding PV wiring on a ground mount is a
>>> difficult process. It is very unfortunate that the industry has
>>> been allowed to evolve without developing decent wire management
hardware in the process.
>>>
>>> If you are not aware of the work we have done on wire management
>>> solutions, you might visit our website where we share all of our
>>> ideas. We are giving away trade secrets, but I feel a moral
>>> obligation to help everyone in the industry deliver a safe product.
>>>
>>> Most sincerely,
>>>
>>> William Miller
>>>
>>>
>>>
>>> Lic 773985
>>> millersolar.com
>>> 805-438-5600
>>>
>>>
>>> -----Original Message-----
>>> From: RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org]
>>> On Behalf Of Christopher Warfel
>>> Sent: Monday, October 13, 2014 5:56 AM
>>> To: re-wrenches at lists.re-wrenches.org
>>> Subject: Re: [RE-wrenches] Wire management devices
>>>
>>> Thanks all, I don't see a good solution to what I think is a
>>> non-existent problem. I believe that anyone who wants to pull apart
>>> dc subarray conductors is attempting to vandalize. It's not easy to
>>> do, and you really have to be wondering why someone would even try.
>>> Why don't we put all electrical outlets 8 feet off the ground?
>>>> On 10/13/2014 2:27 AM, William Miller wrote:
>>>> Friends:
>>>>
>>>> I looked at the Solarmount web site and I don't think the product
>>>> complies-- the wire management leaves leads exposed. It's a nice
>>>> start,
>>> however.
>>>> I was asked by Homepower to do an article on wire management. I
>>>> was flattered they'd ask, but I had to decline because there is so
>>>> few options off-the-shelf that I can recommend.
>>>>
>>>> William
>>>>
>>>> Lic 773985
>>>> millersolar.com
>>>> 805-438-5600
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>> --
>> Christopher Warfel, President
>> ENTECH Engineering, Inc.
>> PO Box 871, Block Island, RI 02807
>> 401-466-8978
>>
>> _______________________________________________
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--
Christopher Warfel, President
ENTECH Engineering, Inc.
PO Box 871, Block Island, RI 02807
401-466-8978
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