So this may be a dumb question, but I'm assuming wire nuts are not
suitable for Fine strand wire? I agree that most installs are not code
compliant in this regard. Its really tough to find parts or even good
info on this.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 8/11/2016 8:03 AM, August Goers wrote:
Hopefully manufacturers will steer away from supplying fine stranded
wires with their trunk cables – it’s been a joke trying to fine the
proper listed reasonably priced parts to make these connections. I bet
that a huge percentage of the installs out there are not meeting the
listing for fine stranded conductors.
That said, we use ferrules on the individual fine stranded conductors
and then make the splices with the Ideal/Buchanan splice caps. This
particular combo was presented in the SunPower ACPV instruction
document and says it is listed for their class K conductors. I haven’t
looked up the listing documents myself (at least recently) since this
was presented in the manufacturer’s manual. As I posted before, the
Ideal splice caps are the bomb! We love them and I’d highly recommend
checking them out if you haven’t already.
Best,
August
Luminalt
*From:*RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org
<mailto:re-wrenches-boun...@lists.re-wrenches.org>] *On Behalf Of
*Glenn Burt
*Sent:* Wednesday, August 10, 2016 8:44 PM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Pass through/transition box for Enphase
The Ideal website for the Buchanan splice has a link to the UL listing
for the product. It does not list it for use with anything other than
standard stranded conductors.
If it is not part of the listing, it is not approved for that use,
regardless of historical or anecdotal use.
That is what the NEC says, and what the UL listing says and the UL
specification for their listing says.
------------------------------------------------------------------------
*From: *Brian Teitelbaum <mailto:bteitelb...@aeesolar.com>
*Sent: *8/10/2016 22:48
*To: *RE-wrenches <mailto:re-wrenches@lists.re-wrenches.org>
*Subject: *Re: [RE-wrenches] Pass through/transition box for Enphase
Jeremy,
Without digging into the specs on the Ideal connectors, I doubt that
they will work with fine-stranded wire.
The problem with these types of connectors is that the set screw that
you turn to tighten the connection is in direct contact with the wire
strands. As you tighten it, it rubs the strands in a circular motion,
which will stretch, flatten, and tear the strands. It would work fine
if you use ferrules, but not without them.
Terminals that are rated for direct use with fine-stranded wire would
have a clamping-type terminal, where the screw used to tighten the
connection pushes down on a solid piece of metal which then clamps the
wire. Even in this case, it may still not be approved for
fine-stranded wire depending on its design.
The Buchanan splices should be fine. They are basically the same as a
ferrule, except that they are crimped with a crimping tool instead of
the pressure from tightening a screw in a bus bar. The crimping tool
is not in direct contact with the wire strands, so there is no tearing
or other damage to the wire. However, the spec sheet does not specify
the acceptable wire types, and I can’t seem to find anything with a
Google search. It might be worth contacting Buchanan/Ideal to see if
they have better info.
Brian Teitelbaum
AEE Solar
*From:*RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org
<mailto:re-wrenches-boun...@lists.re-wrenches.org>] *On Behalf Of
*Jeremy Rodriguez
*Sent:* Wednesday, August 10, 2016 6:32 PM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Pass through/transition box for Enphase
How about these?
https://idealind.com/us/en/products/wire-termination/set-screw-connectors/set-screw-connectors/set-screw-wire-connectors.aspx
Jeremy Rodriguez
Solar Installation And Design Expert
All Solar, Inc.
1463 M St
Penrose Colorado 81240
Sent by Jeremy's iPhone. Sorry for typos and shorthand!
On Aug 8, 2016, at 2:00 PM, Benn Kilburn <b...@skyfireenergy.com
<mailto:b...@skyfireenergy.com>> wrote:
Din rail mounted terminal blocks.... Weidmuler WDU6 or WDU10,
depending on the wire size you are using.
Benn Kilburn
SkyFire Energy Inc.
780-906-7807
On Aug 8, 2016, at 12:49 PM, Jason Szumlanski
<ja...@floridasolardesigngroup.com
<mailto:ja...@floridasolardesigngroup.com>> wrote:
I'm looking to bring 8 Enphase 240V circuits in multiple
conduits into an enclosure inside the attic where I can
transition to Romex. I'd rather use some kind of rail mounted
terminals in an enclosure or something rather than making
splices in a generic j-box. I'm not looking to combine
circuits - just transition from THWN to Romex and keep things
neat an organized.
Any sugg
[The entire original message is not included.]
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