Hey boB,
This is the reference table I was using. They show 325 AWG and 325kCM
refer to the same diameter cable but I should have used kcm for clarity.
If all insulation/temp rating is the same we are back to my original
question. Anyone else able to explain this? To be safe I am leaning
tow
It all boils down to how ampacity is determined in the NEC.
Ampacity is really related to temperature as far as the NEC is concerned.
The ampacity of a 1/0 wire at 90c is the constant current it can carry in
free air (30 C air) and not achieve an internal temperature of more than 90
C. the 75 c
The "area" of the conductor will be 3 times and you would think that the
NEC Ampacity would also be 3 times
that of one conductor. But one LARGE conductor with the same area
might not be as high as you think
because of insulation. I would think that ampacity of 3 cables in
parallel would be
"It also incorporates some pretty nauseating marketing."
Thank you William, I hoped I wasn't the only one who thought that!
With Regards,
Daniel Young,
NABCEP Certified PV Installation ProfessionalTM: Cert #031508-90
NABCEP Certified Solar Heating InstallerTM: Cert #SH031409-13
Lead
No cut sheets, its "b3 bypass" and the site seamed populated, they have a
contact link and i have gottrn responses
Jerry
On Dec 2, 2014 11:48 AM, "Howie Michaelson" wrote:
> Jerry,
> Interesting product, but I can't find much real info on the website. Is
> the B3 bypass listed for multiple manuf
That's the part that is throwing me off. If I have 3 times the circular
mil and compare that to a single conductor of similar circular mil, how
do I have 3 times the ampacity? These are very different numbers.
Example: 1/0 @ 90c is 170 amps x 3 = 510 amps. 510A is what a conductor
just over 75
Friends:
This new breaker looks like it incorporates some good ideas.
It also incorporates some pretty nauseating marketing. The web site is all
fluff and little substance. For example, it is not clear what brand of
panel this will fit in, listing status, etc. I am also disgusted at the
Jerry,
Interesting product, but I can't find much real info on the website. Is
the B3 bypass listed for multiple manufacturers? Do you have a cut sheet
on it?
Thanks,
Howie
--
Howie Michaelson
NABCEP Certified PV Installation Professional
Catamount Solar, LLC
Renewable Energy Systems Sales an
Yes it has a built in connection to the main and bypasses the existing buss
all together, I spent a lot of time with this at the show and is due to be
released soon
Jerry
On Tue, Dec 2, 2014 at 10:14 AM,
wrote:
> Hi:
>
> I'm also not associated with the manufacturer and am not interested in
> pr
Thats a great panel if your upgrading, if your using an existing panel.
this is just a breaker that has a built in tap
Jerry
On Tue, Dec 2, 2014 at 8:26 AM, Max Balchowsky wrote:
> We've been using the Sq D and Seimens "Solar Ready" service panels, they
> come pre-wired with a line side tap
Essentially right.
The only thing you need to account for is the conduit run. If you run those 3x
1/0’s for each leg in the same conduit, you then need to apply any applicable
derates due to multiple current carrying conductors in a conduit, on top of any
other conditions of use derates.
Hi:
I'm also not associated with the manufacturer and am not interested in
promoting the, but do get lots of questions about these kinds of things
and want to make sure I really understand what it is they are offering
>From what I can tell it's a special dual breaker which replaces the main
pa
Here is another great resource for appliance info:
http://enervee.com/
Dan Fink wrote at 05:20 PM 12/1/2014:
>Hi Dave;
>
>The last couple times I speced dishwashers for off-grid clients, I ended up
>doing it right from EnergyGuide ratings. No longer have to order expensive
>stuff from Europe
We've been using the Sq D and Seimens "Solar Ready" service panels, they come
pre-wired with a line side tap Max Balchowsky
Design Engineer
SEE Systems
1048 Irvine Ave Suite 217
Newport Beach, Ca. 92660
760-403-6810"Building a Better Future For The Next Generation"
From: Jerry Shafer
I am sorry. Bad fingers. Three times the ampacity under the same
conditions.
*From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On
Behalf Of *Larry
*Sent:* Tuesday, December 02, 2014 12:09 PM
*To:* RE-wrenches
*Subject:* Re: [RE-wrenches] Parallel Wire combining
OK, let
The ampacity is twice the ampacity of 1-1/0 conductor under the same
conditions.
William C. Turberville P.E.
President
Electrical Contracting Enterprises LLC
3080 Stage Post Dr ste 107
Bartlett, TN 38133
901-348-9230 ext 101 phone
901-289-6346 cell
901-348-2192 FAX
*From:* RE-wrenc
OK, let's use 1/0 for the example. 108,350 x 3 = 325,050. Do I now have
a cable between 300 and 350 AWG?
Thank you,
Larry
On 12/2/14 10:51 AM, Bill Turberville wrote:
The minimum conductor size that can be paralleled, according to the
NEC is 1/0.
William C. Turberville P.E.
President
El
The minimum conductor size that can be paralleled, according to the NEC is
1/0.
William C. Turberville P.E.
President
Electrical Contracting Enterprises LLC
3080 Stage Post Dr ste 107
Bartlett, TN 38133
901-348-9230 ext 101 phone
901-289-6346 cell
901-348-2192 FAX
*From:* RE-wrench
We have installed multible mcm 500 to meet this and there were three on
each leg but that was because of the required size and bending room
Jerry
On Dec 2, 2014 7:43 AM, "Larry" wrote:
> Wrenches,
>
> If I combine 3 conductors of equal length in parallel, is the resulting
> size equal to 3 times
Wrenches,
If I combine 3 conductors of equal length in parallel, is the resulting
size equal to 3 times the Circular Mil area? For example, #4 is 42,080cm
so are three #4's close to 2/0 (134,200cm) in size? Is it as simple as
this? Assuming the conductors can not be removed individually, does
I have seen a lot of talk about the meter main and solar breakers and what
the 120% rule is intended for. I have seen a product at SPI this year and
as I am not pushing this product or indorsing it, it may be of value to
some of you that are dealing with the issue of system size vs meter main
check
Here is what we suggest, good products. http://www.premierrange.com
On Dec 1, 2014, at 4:09 PM, Chris Schaefer wrote:
> Dave, what I use and recommend for LP stoves is Roper by whirlpool. No
> electric at all, just propane. For dishwashers, toasters and microwaves I
> just add a wall switch by t
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