I don't want to argue with two giants like Ann-Marie and Norm but, two switches
in parallel might make the situation worse. (reported failure mode at the
beginning was "switch failed closed")Four switches may be used to eliminate
single point switch failures which makes it not so elegant a design.
BTW how does one sign-up to the liveaboardnow group ? Is it a continuation of
the old liveaboard list ? I miss all the people in the old list. (ie: Yanni and
all)
Thanks
Ahmet
SV8827
> From: [EMAIL PROTECTED]> To: [EMAIL PROTECTED]; [EMAIL PROTECTED]> CC:
> [email protected]> Subject: (T&T: & TWL2:) Re: Reliablity> Date:
> Tue, 30 Sep 2008 04:07:38 -0400> > > No, two in parallel will not double, but
> it will increase reliability an > order of magnitude although the actual real
> life computation is quite > complex.> If the probability of a switch failure
> is 1 in 100,000 operations on the > first switch,> and the probability of a
> failure on the second switch is 1 in 100,000 > operations,> the probability
> that both failures will happen AT THE SAME TIME is 1 in > 10,000,000,000.>
> This is a gross simplification but demonstrates the approach.> > Regards,> >
> Ann-Marie Foster,> [EMAIL PROTECTED]> > ----- Original Message ----- > From:
> "Norm of Bandersnatch" <[EMAIL PROTECTED]>> To: "[EMAIL PROTECTED]" <[EMAIL
> PROTECTED]>> Cc: "A LiveAboardList" <[email protected]>> Sent:
> Tuesday, September 30, 2008 12:53 AM> Subject: Reliablity> > > >> > Wouldn't
> two in parallel simply double the reliability?> >> > Norm> > S/V
> Bandersnatch> > Lying Julington Creek> > 30 07.695N 081 38.484W> >> >> > Get
> two and put them in parallel for 10 times the> >> reliability if you're still
> paranoid.> >> > > > > --~--~---------~--~----~------------~-------~--~----~>
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> -~----------~----~----~----~------~----~------~--~--->
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