Good Grounds, SPD's, Luck, and Prayer. Cheers Friday !
Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail offgridso...@sti.net
text 209 813 0060
On 2023-03-09 12:03 pm, Ray Walters via RE-wrenches wrote:
I'm not an EMP expert by any means, but I've dealt with quite a few
lightning damaged systems. Having a good connection to a low impedance
grounding system (steel cased well, Ufer ground) is crucial. I also
have had fantastic luck with Midnite's MNSPD line. Delta, not so much.
On 3/9/2023 12:39 PM, Starlight via RE-wrenches wrote:
Right Dave. The VooDoo of EMI filtering, lightning protection or EMP
induced voltage reduction attempts are similar and governed by the
inverse square law. How much energy and how close is it? You must
properly reduce energy propagation at every point. I have seen very
expensive protection systems with poor implementation making the entire
scheme useless. So, is the cost and effort worth the results? Study,
then study more. It may be more cost effective to have a back part
rather than spending money on an expensive preventative measure.
Larry Crutcher
Starlight Solar Power Systems
On Mar 9, 2023, at 11:18 AM, Marco Mangelsdorf via RE-wrenches
<re-wrenches@lists.re-wrenches.org> wrote:
Hmmm...I wonder how much SolArk is dreaming.
https://www.sol-ark.com/e-m-p/
On Thu, Mar 9, 2023 at 9:58 AM Dave Angelini Offgrid Solar via
RE-wrenches <re-wrenches@lists.re-wrenches.org> wrote:
Depends on how close and how strong the pulse or strike is. In Mil
satellites, the same thing. You can harden but are dreaming if you
think your electronics can really survive it. Even harder to protect
electronics that are powered on. The KH series spy sats I saw
schematics for had redundant systems that were off or rotated I seem to
remember. This was back in the 90's so very sketchy in the fog of time.
For Offgrid, and High Rel power systems, a faraday cage for your
inverter and CC is a must if you are in high lightning zone. A top of a
mountain is often really hard on a house or Telcom. One place I have
blows SPD's yearly.
Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail offgridso...@sti.net
text 209 813 0060
On 2023-03-09 9:09 am, Drake Chamberlin via RE-wrenches wrote:
Backwoods Solar sells kits to harden against EMP. I am wondering how
effective they would be.
Drake
_Drake Chamberlin_
_Athens Electric LLC_
_Ohio Electrical Contractor's License 44810_
_CO Master Electrician's License 4526_
_NABCEP Certified PV Installation Professional_
---
On 2023-03-08 11:49, Glenn Burt via RE-wrenches wrote:
I would review Sol Arks website as they say they are immune. Probably
have something to back that up published there.
-Glenn
Sent from my 'smart'phone, so please excuse typos and spelling errors.
------ Original message------
From: Marco Mangelsdorf via RE-wrenches
Date: Wed, Mar 8, 2023 11:37 AM
To: RE-wrenches;
Cc: Marco Mangelsdorf;
Subject:[RE-wrenches] PV and EMP
Aloha all,
Have any of you come across any articles or white papers on how PV
systems (including energy storage) fare under conditions of
electromagnetic pulses and solar flares?
Mahalo,
marco
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