[RE-wrenches] DC run

[frenergy]

Hey Folks,

            I need some clarification, I'm getting conflicting views.  
When running DC in metal conduit from the roof array to the exterior 
wall mounted string Inverter and the attic is the way to go (for various 
reasons, usually snow), how far below the roof does that conduit have to 
be?  Secured to the bottom of a rafter or top chord OK? Distance 
from???restrictions?


TIA,

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049
www.frenergy.net


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Re: [RE-wrenches] DC run

[Jason Szumlanski]

300.4(E)

*Jason Szumlanski*
Principal Solar Designer | Florida Solar Design Group
(239) 491-8010 (239) 410-4985
www.FloridaSolarDesignGroup.com

[image: Facebook]

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Twitter]

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Youtube]




On Fri, Jun 5, 2020 at 12:46 PM frenergy  wrote:

> Hey Folks,
>
>  I need some clarification, I'm getting conflicting views.
> When running DC in metal conduit from the roof array to the exterior
> wall mounted string Inverter and the attic is the way to go (for various
> reasons, usually snow), how far below the roof does that conduit have to
> be?  Secured to the bottom of a rafter or top chord OK? Distance
> from???restrictions?
>
> TIA,
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.
> Taylorsville, CA 95983
> 530.284.7849
> CA Lic 874049
> www.frenergy.net
>
>
> --
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
>
>
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Re: [RE-wrenches] DC run

[Jason Szumlanski]

Sorry, I hit send too soon. 1-1/2" from bottom of roof decking.

See NEC 300.4(E)

Along the bottom of the top chords is fine, even for cables (i.e. NM cable
or other cable carrying AC not in raceway).



On Fri, Jun 5, 2020 at 2:17 PM Jason Szumlanski <
ja...@floridasolardesigngroup.com> wrote:

> 300.4(E)
>
> 
> *Jason Szumlanski*
> Principal Solar Designer | Florida Solar Design Group
> (239) 491-8010 (239) 410-4985
> www.FloridaSolarDesignGroup.com
> 
> [image: Facebook]
> 
>  [image:
> Twitter]
> 
>  [image:
> Youtube]
> 
>
>
>
> On Fri, Jun 5, 2020 at 12:46 PM frenergy  wrote:
>
>> Hey Folks,
>>
>>  I need some clarification, I'm getting conflicting views.
>> When running DC in metal conduit from the roof array to the exterior
>> wall mounted string Inverter and the attic is the way to go (for various
>> reasons, usually snow), how far below the roof does that conduit have to
>> be?  Secured to the bottom of a rafter or top chord OK? Distance
>> from???restrictions?
>>
>> TIA,
>>
>> Bill
>>
>> Feather River Solar Electric
>> Bill Battagin, Owner
>> 4291 Nelson St.
>> Taylorsville, CA 95983
>> 530.284.7849
>> CA Lic 874049
>> www.frenergy.net
>> 
>>
>>
>> --
>> This email has been checked for viruses by Avast antivirus software.
>> https://www.avast.com/antivirus
>> 
>>
>>
>> ___
>> List sponsored by Redwood Alliance
>>
>> List Address: RE-wrenches@lists.re-wrenches.org
>>
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>> 
>>
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>> http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html
>> 
>>
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>>
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>> www.members.re-wrenches.org
>> 
>>
>>
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Re: [RE-wrenches] Mate 3s firmware upgrade issues

[Dan Fink]

Andthe new Mate 3s they sent has the same issue, even after I
reverted to the old firmware version. Thought it was very odd that gateway
connectivity was OK before the firmware update and failed immediately
afterwards. Would still appreciate any feedback if others have experienced
this problem.

DAN

On Fri, May 8, 2020, 10:58 Dan Fink  wrote:

> Huh, Outback just contacted me and says they will send a replacement unit.
> Whatever works!
> Dan Fink
> d anbo...@gmail.com
> 970-672-4342
>
>
>
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[RE-wrenches] SW4024

[RE Ellison]

Has anybody ever tried to charge a Chevy bolt with an SW 4024 ?

I don’t know if it would be happy with the way form or not and I’m hoping 
somebody has toyed with it !

Thanks
Bob Ellison
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Re: [RE-wrenches] SW4024

[Ray]

I don't know about a Bolt, but we've successfully charged a customer's 
Chevy Volt from an SW inverter for several years.


Ray Walters
Remote Solar
303 505-8760

On 6/5/20 5:07 PM, RE Ellison wrote:

Has anybody ever tried to charge a Chevy bolt with an SW 4024 ?

I don’t know if it would be happy with the way form or not and I’m hoping 
somebody has toyed with it !

Thanks
Bob Ellison
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Re: [RE-wrenches] DC run

[Dan Fink]

Bill; If it's the IFC (International Fire Code) you need to comply with,
the reference is 605.11.2 in 2012 and 2015 IFC -- Location of DC
Conductors, which states they should be located at least 10 inches below
the roof decking, and as close as possible to supporting members
(firefighters won't cut through supporting members).

If your AHJ is using IFC 2018, Location of DC Conductors was not included
in the new 1204 Energy Systems chapter, as the system should have NEC 2020
690.12 Rapid Shutdown, which makes location of DC conductors moot, as they
shouldn't be energized anyway after actuating RSS.

In cases like where there is no RSS (for example the 690.12 exemption for
non-habitable structures intended only to house PV BOS) the AHJ could
require IFC 605.11.2 compliance.

Always check with your AHJ(s) as Fire Codes are frequently amended/excepted
by local authorities.though at least these sometimes make it into the
next IFC cycle (for example the Boulder CO and CA and OR rooftop setback
exceptions are now in IFC2018).

Dan Fink
Buckville Energy Consulting



On Fri, Jun 5, 2020, 10:46 frenergy  wrote:

> Hey Folks,
>
>  I need some clarification, I'm getting conflicting views.
> When running DC in metal conduit from the roof array to the exterior
> wall mounted string Inverter and the attic is the way to go (for various
> reasons, usually snow), how far below the roof does that conduit have to
> be?  Secured to the bottom of a rafter or top chord OK? Distance
> from???restrictions?
>
> TIA,
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.
> Taylorsville, CA 95983
> 530.284.7849
> CA Lic 874049
> www.frenergy.net
>
>
> --
> This email has been checked for viruses by Avast antivirus software.
> https://www.avast.com/antivirus
>
>
> ___
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Re: [RE-wrenches] ADV: Re: SW4024

[frenergy]

We've charged both a 2012 RAV4EV (many times) and a 2018 Tesla Model 3 
(couple dozen times) on OB VFX3524s.  I wouldn't think the sign wave was 
much cleaner than the older SWs?, if that was what you were referring to.


Bill

On 6/5/2020 3:57 PM, Ray wrote:
I don't know about a Bolt, but we've successfully charged a customer's 
Chevy Volt from an SW inverter for several years.


Ray Walters
Remote Solar
303 505-8760

On 6/5/20 5:07 PM, RE Ellison wrote:

Has anybody ever tried to charge a Chevy bolt with an SW 4024 ?

I don’t know if it would be happy with the way form or not and I’m 
hoping somebody has toyed with it !


Thanks
Bob Ellison
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