Body
Warren, for your info! Why lightning does not strike your ferrocement
boat!
-------- Forwarded Message --------
Subject: Re: Fwd: Re: [EVGRAY] Solar panel neutral spike
Date: Thu, 20 Sep 2018 06:48:45 -0500
From: Norman Wootan <[email protected]>
To: Jon Gentry <[email protected]>
http://www.esgroundingsolutions.com/what-is-ground-potential-rise-and-earth-potential-rise/
On 9/20/2018 6:43 AM, Norman Wootan wrote:
>
> Jon, I'm trying to find a certain area in the US that has no lightning
> activity due to the natural potential in the area that mitigates
> lightning. Be interesting to test the Theory of grounding bouyes down
> in South America! See:
> https://www.livescience.com/54666-most-lightning-prone-place-in-the-world.html
>
> https://en.wikipedia.org/wiki/Earth_potential_rise
>
> http://igs.nigc.ir/STANDS/BOOK/LIGHTNING-PROTECTION-A.PDF Jon! A good
> example of "Air Termination"!
>
>
>
> -------- Forwarded Message --------
> Subject: Re: [EVGRAY] Solar panel neutral spike
> Date: Mon, 27 Aug 2018 08:36:06 +0000 (UTC)
> From: Warren Keillor [email protected] [EVGRAY]
> <[email protected]>
> Reply-To: [email protected]
> To: [email protected] <[email protected]>
>
>
>
> James
>
> You don't go looking for interesting weather when in a boat. You do
> your best to avoid it.
> But just like politics, or other large features of the landscape,
> sometimes it just happens. We do our best as we see it, using our best
> survival skills.
> A fhunderstorm that has lighning hitting very close to you, for hours
> at a time, with no break in the sound, the hair on your arms standing
> out straight in the charged atmosphere, is not a situation one chooses
> to be in, but being on the water, like being in a spacecraft, is a
> bubble of reality, you live in, or not.
> And yes, twin waterspouts between the Guadalope and the Saints, each
> appearing out of a black cloud that seemed a mile up traveling West,
> one right after the other, coming out of what seemed like the same
> place in the sky. It may have been the high masses of both Island
> groups and the narrow channel between them after the broad Atlantic.
> We cut the interval between them by chance, on our way to the Saints.
> Cheers Warren
> Sent from Yahoo Mail on Android
> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>
> On Sun, 26 Aug 2018 at 6:31 PM, James Glinski [email protected]
> [EVGRAY]
> <[email protected]> wrote:
>
> Have you tried it on a water spout yet ? 😁
>
> On Aug 26, 2018 2:25 AM, "Warren Keillor
> [email protected]
> <mailto:[email protected]> [EVGRAY]"
> <[email protected] <mailto:[email protected]>> wrote:
>
> Mick
> I have been running my schooner's electrical system using PV
> panels on a 12 volt system charging golf cart batteries. It
> seems to be trouble free, so far. The batteries have been
> always fully charged.
> Thete are two metal masts rising up six and a half stories
> from the deck. The half inch stainless steel rigging conducts
> to ground via the ferro cement hull which seems to be always
> at the same potential as the water, when I have measured it.
> I have been in some very frightening lightning storms in the
> Gulf Stream, and the East Coast of the US, being the tallest
> structure on the horizon.
> I have heard that there is a sixty degree cone of protection
> afforded such installations around vessels.
> My experience, scary as it was, seemed to bear this out.
> Lighning repeatedly struck the water on all sides around the
> boat for hours on end with deafening noise and hissing trails
> of bubbles, like snakes on the water, at the point of impact.
> Somehow in these storms, I had no electronics, or electrical
> damage..
> I would not bet on it always working, but it worked for me.
> Cheers Warren
> Sent from Yahoo Mail on Android
> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>
> On Sat, 25 Aug 2018 at 8:26 PM, Mick [email protected]
> <mailto:[email protected]> [EVGRAY]
> <[email protected] <mailto:[email protected]>>
> wrote:
>
> Staying at a friends who had PV solar installed. When they
> were away
> they came back and found a power strip melted that went to
> a treadmill
> and a few of the ceiling fan controllers burned out. Began
> to check the
> circuit and found the ground wire from the Sunny Boy
> inverter cut at the
> sheath inside the service panel. The solar panels are
> about 100 yards
> from the house and grounded to the concrete sunk racks, I
> really think
> there should be a dedicated grounding rod also, but the
> grounding wire
> inside the feed to the pair of breakers just cut not
> bonded to the
> panel. I am pretty sure this is against code besides
> being a hazard.
> Likely a lightening strike nearby pushed a nice big pulse
> through the
> neutral wire and reflected off the inductive loads.
>
> I am furious at this kind of stupidity but before I give
> hell to the
> installer I want to make sure my thinking is correct.
> Perhaps Dave can
> give his two cents if for any reason the inverter should
> be floated like
> this instead of bonded to the panel.
>
> There seems to be a controversy on the topic:
>
> https://www.solarpaneltalk. com/forum/solar-panels-for-
> home/solar-panel-system- equipment/16949-grounding-
> code-690-47-c-3- implementation-with-sma-
> sunnyboy-tl-us-22
> <https://www.solarpaneltalk.com/forum/solar-panels-for-home/solar-panel-system-equipment/16949-grounding-code-690-47-c-3-implementation-with-sma-sunnyboy-tl-us-22>
>
>