I should also add to my post and others' comments, that SAE rated and
welding cables are not NEC legal for building wiring. That used to be a
common bust by the AHJ, and as others have pointed out: Cobra Xflex,
Arctic, etc are all UL listed building cable. Its got to have something
listed on
Also, welding and automotive cables use totally different rating systems
like SAE, that are much more liberal than NEC. For instance, golf carts
are traditionally wired with #6 battery cables, and can see a continuous
draw of 125 A and surges to 200. We would never do that by NEC, but the
cabl
ug 11, 2020, at 10:34 PM, Glenn
Burt wrote:
Okay I have to ask, why wouldn't you want to stick to code
compliant battery cabling? FROM: RE-wrenches ON BEHALF OF
peter...@pobox.com [5]
SENT: Tuesday, August 11, 2020 6:18 PM
TO:
RE-wrenches@lists.re-wrenches.org [6]
SUBJECT: [RE-wre
lists.re-wrenches.org>> On Behalf Of
> peter...@pobox.com <mailto:peter...@pobox.com>
> Sent: Tuesday, August 11, 2020 6:18 PM
> To: RE-wrenches@lists.re-wrenches.org
> <mailto:RE-wrenches@lists.re-wrenches.org>
> Subject: [RE-wrenches] Ampacity Ratings for Diffe
Peter,
I’d recommend 2-0 copper for this. Overkill? Perhaps, but the battery cables
are probably the cheapest vital part of the system. Anything you can do to make
life a bit better for the batteries will pay off. A few extra bucks for cable
is a lot cheaper than one warrantee site visit.
Cobr
Okay I have to ask, why wouldn’t you want to stick to code compliant battery
cabling?
From: RE-wrenches On Behalf Of
peter...@pobox.com
Sent: Tuesday, August 11, 2020 6:18 PM
To: RE-wrenches@lists.re-wrenches.org
Subject: [RE-wrenches] Ampacity Ratings for Different Conductors
I have
Peter,
The 210-amp rating is probably for a 105°C insulation temperature in
free air. For comparison, #2 THHN (90°C) copper in free air is rated for
190 amps. Not sure that it makes sense to use a free-air rating in a
small closed box. For outside use a temperature de-rating for ambient
temp
I would and do use a 2/0 battery cable for a 4KW inverter. Anchor is an
excellent marine cable, but not a #2.
Dave Angelini Offgrid Solar
"we go
where powerlines don't"
http://members.sti.net/offgridsolar/ [1]
e-mail
offgridso...@sti.net [2]
text 209 813 0060
On Tue, 11 Aug 2020 15:18:22
-070
I have been designing a off-grid system that can fit in an outside-accessible compartment with an approximate 24" square footprint and space above about 18" - 24".
I am using two Battle Born LiFePO4 batteries rated at 24 V / 50 Ah, a Cotek pure sine wave inverter with
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