[chbot] Self-sufficiency?

[Geoff]

>
> "Yes I take your installation point – my batteries are well tek’d to my
> internal wall – they’re not going anywhere…"
>

The kaikoura earthquake had a peak ground acceleration of 1.2g (measured
25km from the epicenter). Is your securing system sufficient for being
rotated 90 degrees so the batteries are hanging from it? How about
vertical? Can it deal with significant lifting force?

The february 2011 earthquake had a peak ground acceleration of 2.2g. At
these levels of acceleration even seemingly robust mountings may not be
adequate.

G

On Tue, Nov 15, 2016 at 2:15 PM, Steve Groom <s.groom at braemac.co.nz> wrote:

> Hi Charles,
>
>
>
> Yes I take your installation point – my batteries are well tek’d to my
> internal wall – they’re not going anywhere…
>
>
>
> Steve.
>
>
>
> *From:* chchrobotics-bounces at lists.linuxnut.co.nz [mailto:
> chchrobotics-bounces at lists.linuxnut.co.nz] *On Behalf Of *Charles Manning
> *Sent:* Tuesday, 15 November 2016 2:09 PM
> *To:* Christchurch Robotics
> *Subject:* Re: [chbot] Self-sufficiency?
>
>
>
> It doesn't take much to secure the batteries and gas bottles so they don't
> fall over.
>
> I take it this is a dodgy installation done by someone that knows more
> about moonbeams and unicorns than actual engineering.
>
> Steve... plenty of people use FPGAs. Fantastic for various purposes, but
> the real cheap/high capability micros are chomping some of their turf.
>
>
>
> On Tue, Nov 15, 2016 at 1:56 PM, Steve Groom <s.groom at braemac.co.nz>
> wrote:
>
> Hi All,
>
> My first comment here :-)  it's been great seeing what you are all up to.
> I guess no-one uses FPGA on this forum?
>
> Regarding the comment below from Volker - I see the problem - lead acid
> batteries and gas ... how about LiFePO4 batteries and no gas.  I have been
> through the 7.2 in Darfield (live in Darfield) without issue and off-grid.
>
>
> Regards,
>
> Steve.
>
>
> -----Original Message-----
> From: chchrobotics-bounces at lists.linuxnut.co.nz [mailto:
> chchrobotics-bounces at lists.linuxnut.co.nz] On Behalf Of Volker Kuhlmann
> Sent: Tuesday, 15 November 2016 1:23 PM
> To: Christchurch Robotics
> Subject: [chbot] Self-sufficiency?
>
> So much for off-the-grid idealism and trying to be self-sufficient:
>
> http://www.stuff.co.nz/national/86460484/stranded-
> kaikoura-residents-offered-flights-out-but-weather-could-
> hamper-evacuations
>
> OFF THE GRID - LITERALLY
> Niky McArthur was on the verge of tears as she talked about the state of
> her ecotourism business, Kaikoura Wilderness, which is located in a remote
> valley north of Kaikoura.
> "I always thought that whatever was happening in the world we'd be self
> sufficient up there," she said.
> Monday morning's earthquake had crippled the "off the grid" Puhi Puhi Rd
> business, which offered accommodation and guided walks.
> Battery banks powering the lodge were destroyed, gas bottles tipped over
> and water tanks cracked.
> The road to the site was impassable and likely would be for many months.
> "I'm not sure if I'm going to cry or not. I'm quite shell-shocked. We
> won't be able to run a business for [at least] six months. It's going to
> have a devastating effect."
> The full extent of the damage to the Kaikoura area was still not known.
>
> There are lot more variables involved than people seem to think about.
>
> Volker
>
> --
> Volker Kuhlmann
> http://volker.top.geek.nz/      Please do not CC list postings to me.
>
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