Hello Friends!
I am looking for 1000v rated #6awg wire suitable for running in conduit
from roof top combiner down to the inverterwhat are others using for
this application? Ideally I would love to find some THHN or THWN-2 but with
1000v ratingany suggestions, sources?
Application is from a
The cheapest solution I have been able to find for this over the past 12
months has been PV wire. The other problem you might find is 1000V listed
components to transition from PV wire to other types of wire.
Matt
On Thu, January 28, 2016 7:48 am, Kirpal Khalsa wrote:
> Hello Friends!
> I am loo
If you are going to do it, have you considered EPDM washers instead of
plastic? Just a thought... I still wouldn't do it unless expressly endorsed
by the manufacturer and/or engineer, but EPDM seems like a better option
for longevity.
Jason
On Wed, Jan 27, 2016 at 8:44 PM, Jay wrote:
> Ok h
Hi Kirpal,
Southwire makes 1000v rated USE up to 500MCM.
Might want to oversize your conduit.
Lotsa lube.
Pat
On Thu, Jan 28, 2016 at 7:48 AM, Kirpal Khalsa wrote:
> Hello Friends!
> I am looking for 1000v rated #6awg wire suitable for running in conduit
> from roof top combiner down to the inve
Hey Jay,
I’m still trying to picture this and had a thought: If you isolate the module
from the rack electrically with these washers, and both are grounded, and the
two grounds are not at the same potential (different length ground runs), you
may be creating a path for high voltage into the arr
Hi Jason,
It's part of why I asked because I'm not sure the best material.
I always thought of Epdm as pretty soft?
If you have a supplier let us know
Jay
> On Jan 28, 2016, at 5:00 AM, Jason Szumlanski
> wrote:
>
> If you are going to do it, have you considered EPDM washers instead of
> p
Hi Larry
I wasn't planning on installing anything between al and al. Just between SS and
al. So the module will still be bolted directly to the al rack material. I'm
not too worried about the grounding, and certainly not worried enough to
install lay in lugs with copper to each module.
As lon
I would use a SS washer with integrated Neoprene rubber gasket. We use
them on roof work, and Unirac uses them under the lag on their roof
flashings.
Image result for neoprene washers
https://www.copperstate.com/shop/429/neoprene-washers
Thanks,
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certifi
My hesitation to that is the compressibility of the neoprene.
One of the things I like about nylon or similar hard plastics is they don’t
compress so you do get a ridged structure.
jay
peltz power
> On Jan 28, 2016, at 10:15 AM, Ray Walters wrote:
>
> I would use a SS washer with integrate
Wrenches,
Quick heads up...I got a email ,supposedly from Ferris University in
Michigan, wanting to purchase 70 Morningstar charge controllers on net 30
terms. I quick call to the actual procurement officer ended the deal as it
was a hoax. I decided to take it a bit further and ask for references
We just had that same concern, but once you torque the connection down
there was no noticeable movement. As someone else mentioned the
plastics can be tough to hold up to UV, temperature, compression, and
thermal cycling. Once that hard plastic cracks and falls out, you
definitely will have a
Our house is on the ocean, in the Caribbean. If you are using something
like SnapNRack, where a stainless bolt goes through an aluminium channel
nut, use Permatex or it will seize. Other than that, I have not seen
racking corrosion in eight years on the roof. Put all the clamps, bolts,
nuts etc,
Yea its tough. I’m trying to make sure I do it right ( whatever that is at
this point) and what the customer wants.
I”ll check to see if this meets with his approval. Might be the way to go.
Thanks for the update as to it being tight.
I”m guessing here, but I can hear him say “ yes but that ru
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Chris,
As only the threads of all SS bolts need anti-seize, there's a much
neater method. Anti-seize is available in a solid twist-to-extend
tube that is neat and easy to use. One light swipe across the make
threads of each bolt - doesn't take much to prevent galling.
You can buy sheets and cut or stamp to size.
http://www.mscdirect.com/industrialtools/epdm-rubber-sheet.html
I'm sure there are pre-cut EPDM washers out there.
EPDM is routinely bonded to washers and screw flanges for fastening
brackets and metal roofing material, so I don't see why it would be to
Hi All;
We're looking to improve our battery box construction, and are
considering using 1/8" think polypropylene sheeting. I've used small
premade boxes before, but this will be for a HUP install, and we would
want to build the box around the batteries after. Does anyone have
experience/ c
Ray,
As an option for the plywood box with the 10 mil poly lining. You can do two
layers of the poly liner and also protect it with two lengths of 1 x 3 wood
strapping on the floor of the box to support the heavy batteries and protect
the poly liner. I have done this for years with no problems. Cu
Ray,
Just a couple of weeks ago we installed a 24V HUP set in an existing
installation. We had an existing plywood battery box made of Baltic
Birch (the 9-ply 12mm thick plywood typically used for cabinet
drawer carcases) with a liner made of 40(?)-mil pond liner material
Add to the list...I've had good luck with Grace roofing underlayment:
tough and to a degree, self-healing, sticks to itself (and anything it
comes in contact with) very well making seams secure, easy to find at
building supply store, sticks aggressively to battery box sides without
mechanical f
While Brian T. is correct that fusing is not required for string-to-string overcurrent protection with two strings into two channels, there is another reason to require fusing. Transformerless inverters like Fronius Primo have no transformer to provide AC-DC isolation, so a ground fault can allow
Thanks for all the replies so far. I've tried foundation waterproofing
membrane for a couple of years, but found it will deteriorate in high
acid concentrations. IT gets all gooey and begins to dissolve. It had
peel N stick adhesive, and seemed like a good idea, until later. (it
was HDPE?)
Thanks for sharing your experience with these batteries, Dan.I have similar SOC issues with an off-grid customer who has the Aquion Hybrid Ion batteries.It has difficulty reaching full charge from solar, requiring the genny to kick on each morning even in the summer.This is even worse in cold winte
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